CN216940428U - Electric wrench and electric wrench system - Google Patents

Abstract

The application provides an electric wrench and an electric wrench system. The electric wrench comprises a shell and a wrench component, wherein an accommodating cavity and a connecting cavity adjacent to the accommodating cavity are formed in the shell, and the wrench component is arranged in the accommodating cavity; the connecting cavity is used for connecting a connecting end of power supply equipment with an automobile starting function, so that the wrench assembly is electrically connected with the connecting end of the power supply equipment to obtain electric energy from the power supply equipment. This application makes the electric spanner structure simplify through detachable power supply unit, and portable also makes power supply unit's function further richening.

Description

Electric wrench and electric wrench system

Technical Field

The application belongs to the electric tool field, especially relates to an electric spanner and electric spanner system.

Background

With the increasing of the quantity of automobiles in China, automobile tools are also abundant, and especially some emergency sheltering tools, such as a starting power supply, an inflating pump, a jack and the like, become necessary tools for the traveling of the vehicles. The traditional electric wrench can work only by plugging electricity when in use, and the use environment is limited and is extremely inconvenient due to constraint. Various vehicles, devices, or electronic equipment are typically configured with their own power source to provide power to the various components within. For example, an automotive battery is a device used to power various electronic devices on an automobile. With the development of battery material technology, the capacity of the battery has been greatly improved, and the application range of the battery has been extended from some low-power electronic electric devices to some high-power electric devices, such as electric wrenches and the like.

However, the battery performance of the existing electric wrench is single, that is, the electric wrench can only be used for supplying power to the electric wrench, and when the electric wrench is in an idle state (the electric wrench does not need to work), the battery is in the idle state, so that the utilization rate of the battery of the electric wrench is low. If the battery is not used for a long time, the capacity and the service life of the battery are reduced, and the performance of the battery is further influenced.

On the other hand, the wireless electric wrench used with the battery often can only be used as an electric wrench, and the function is very single. Moreover, the wireless electric wrench needs to carry a battery in order to realize electric driving, so that the wireless electric wrench is very heavy. The overweight weight and the single function reduce the power that the user bought and carried wireless electric spanner.

SUMMERY OF THE UTILITY MODEL

This application provides an electric spanner and electric wrench system to prior art's defect, electric spanner can use with the power supply unit cooperation that has the automobile starting function to the extension has the power supply unit's of automobile starting function application range, and makes electric spanner more portable, in order to solve above-mentioned technical problem.

The application provides an electric wrench, which comprises a shell and an operation assembly, wherein the shell is provided with an accommodating cavity and a combining part adjacent to the accommodating cavity, and the operation assembly is arranged in the accommodating cavity; the combining part is used for being connected with a connecting end of power supply equipment with an automobile starting function, so that the operating assembly is electrically connected with the connecting end of the power supply equipment to obtain electric energy from the power supply equipment.

The application also provides an electric wrench system, including above-mentioned electric wrench and the power supply unit who has the car start function, power supply unit includes the link, electric wrench's connection chamber with power supply unit's link plug-in connection.

The application provides an electric spanner and electric spanner system adopts the electrical power unit who has the car start function to do the electric spanner power supply, consequently, need not to be equipped with special power for electric spanner, reduces manufacturing cost, has also increased electric spanner's portability.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of an electric wrench system according to an embodiment of the present application.

Fig. 2 is an exploded view of the electric wrench system according to an embodiment of the present application.

Fig. 3 is a disassembly schematic view of the electric wrench according to an embodiment of the present application.

Fig. 4 is a schematic structural diagram of a part of components of the electric wrench in another direction according to an embodiment of the present application.

Fig. 5 is a schematic structural view of the electric wrench in another direction according to an embodiment of the present application.

Fig. 6 is a schematic structural diagram of a power supply device in an embodiment of the present application.

Fig. 7 is a top view of a power supply apparatus in an embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be described clearly and completely with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without inventive step, are within the scope of the present disclosure.

In addition, the following description of the various embodiments refers to the accompanying drawings, which are included to illustrate specific embodiments that can be used to practice the present application. Directional phrases used in this application, such as, for example, "upper," "lower," "front," "rear," "left," "right," "inner," "outer," "side," and the like, refer only to the orientation of the appended drawings and are, therefore, used herein for better and clearer illustration and understanding of the application and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the application.

Referring to fig. 1 and 2, fig. 1 is a schematic structural diagram of an electric wrench system according to an embodiment of the present application. Fig. 2 is an exploded view of an electric wrench system according to an embodiment of the present application. The electric wrench system 100 includes an electric wrench 10 and a power supply apparatus 32. The power supply device 32 is a power supply device having a vehicle starting function. The power supply device 32 includes a body end 325 and a connection terminal 320, and the connection terminal 320 is provided on one end of the body end 325. Referring to fig. 3 and 4, the electric wrench 10 includes a housing 11 and a wrench assembly 12, the housing 11 is provided with a receiving cavity 110 and a connecting cavity 112 adjacent to the receiving cavity 110, and the wrench assembly 12 is received in the receiving cavity 110 for performing a function of the electric wrench 10. The connection cavity 112 is used for plugging the connection end 320 of the power device 32, so that the wrench assembly 12 is electrically connected with the connection end 320 of the power device 32 to obtain power from the power device 32.

Further, in one embodiment, the connection cavity 112 is removably coupled to the connection end 320 of the power supply device 32.

Therefore, the power supply device 32 has not only the vehicle start function but also the power bank function. When the electric wrench 10 needs to work, the electric wrench is plugged with the power supply device 32 to obtain electric energy. A special power supply is not required to be specially equipped for the electric wrench 10, so that the portability of the electric wrench 10 is increased. The power unit 32 may also serve as a power source for other power tools, such as electric screwdrivers, electric air pumps, electric car washers, electric vacuum cleaners, electric drills, electric hammers, electric mills, electric planes, and the like. Of course, the power supply device 32 can also be used as an igniter for ignition of the automobile so as to be used as an emergency power supply when the starting power supply of the automobile is dead, so that the application scene of the power supply device 32 is diversified.

Alternatively, in other embodiments, the connection cavity 112 is non-removably coupled to the connection end 320 of the power supply device 32. In this case, the power supply device 32 is provided with an interface dedicated to the igniter functioning as the ignition of the vehicle. Of course, the power supply device 32 is further provided with a power output interface for supplying power to other electric tools to charge the other electric tools.

Further, in one embodiment, referring to fig. 2 again, the housing 11 includes a main body portion 111 and a holding end 113, and a T shape is formed between the main body portion 111 and the holding end 113. The connection cavity 112 is disposed on the holding end 113, and the power supply device 32 and the holding end 113 are inserted into each other to form a holding portion of the electric wrench 10. Thus, the grip end 113 and the power supply apparatus 32 collectively serve as a handle of the electric wrench 10. Therefore, the holding end 113 of the electric wrench 10 does not need to be too long, so that the size of the electric wrench 10 can be reduced, and the electric wrench is convenient to carry.

Optionally, in one embodiment, the holding end 113 is inclined at an angle s with respect to the main body 111. Specifically, in the present embodiment, the grip end 113 is inclined at about 15 degrees with respect to the main body 111. In other embodiments, the inclination angle of the holding end 113 with respect to the main body 111 is not limited to 15 degrees, but may be other angles. In this way, the electric wrench 10 can apply a torque to the object to be acted on.

Optionally, in one embodiment, referring to fig. 3 together, the housing 11 includes a first housing 114 and a second housing 115. The first housing 114 and the second housing 115 are symmetrical. It is understood that in other embodiments, the first housing 114 and the second housing 115 may be asymmetric. The first housing 114 and the second housing 115 are butted against each other to form a hollow chamber. The cavity includes the receiving cavity 110 and the connecting cavity 112. The accommodating cavity 110 is partially disposed on the main body 111 and partially disposed on an end of the holding end 113 close to the main body 111. The connection cavity 112 is disposed on the gripping end 113. Thus, the proper distribution of the receiving cavity 110 and the connecting cavity 112 allows the wrench assemblies 12 to be properly distributed within the housing 11, even for portability and ease of handling.

In the prior art, the shell is generally formed by hard plastics and soft plastics together, the forming process is complex, and the production cost is high. In the present application, the first housing 114 and the second housing 115 are integrally formed by using hard plastic, which may be, but is not limited to, ABS resin or the like. Therefore, the production cost is reduced on the basis of ensuring the strength and the aesthetic property.

Optionally, in one embodiment, a U-shaped decorative frame 116 is further disposed on each of the first casing 114 and the second casing 115. The decorative frame 116 and the first casing 114 or the second casing 115 are fixed by a snap fit, or may be formed by two-color molding.

Alternatively, in one embodiment, referring to fig. 4, the wrench assembly 12 includes a controller 121, a driving member 122 and an operating head 123, the controller 121 is electrically connected to the driving member 122 and is received in the receiving cavity 110, and the operating head 123 is connected to an output shaft of the driving member 122 and extends from the driving member 122 to the outside of the receiving cavity 110. Thus, the controller 121 controls the driving member 122 to drive the operating head 123 to rotate, so as to implement the function of the electric wrench.

Further, in the present embodiment, the driving member 122 includes a motor 1221 and a speed reducer 1222. The controller 121 is connected to the motor 1221. An output shaft of the motor 1221 is connected to an input shaft of the speed reducer 1222. The accommodating cavity 110 has two opposite ends, namely a first end and a second end, the first end is an end close to the opening of the accommodating cavity 110, and the second end is an end far away from the opening of the accommodating cavity 110. The motor 1221 is installed at the second end of the receiving chamber 110, and the decelerator 1222 is installed at the first end of the receiving chamber 110. The operating head 123 is mounted on an output shaft of the reducer 1222 at an end remote from the motor 1221. The controller 121 is electrically connected to the motor 1221. Thus, the rotation of the motor 1221 is controlled by the controller 121, and the rotation speed of the output shaft is controlled by the reducer 1222.

Optionally, in one embodiment, the wrench assembly 12 further includes a circuit board 124. The circuit board 124 is also disposed in the receiving cavity 110 and is located on a side of the motor 1221 adjacent to the power device 32. The controller 121 is disposed on the circuit board 124.

Optionally, in an embodiment, referring to fig. 1 to fig. 3, the electric wrench 10 further includes a control button 14, and the control button 14 is electrically connected to the controller 121. In one embodiment, the control key 14 is electrically connected to the controller 121 through the circuit board 124. Further, an opening 1131 is disposed on a side of the holding end 113 facing the second end of the housing 11. The control keys 14 are disposed in the openings 1131. It will be appreciated that in other embodiments, the control keys 14 may be disposed at other suitable locations on the housing 11. The control button 14 can be used to realize forward rotation, reverse rotation, or stop of the electric wrench 10. Specifically, the control key 14 has a forward rotation key bit 141 and a reverse rotation key bit 142. The forward rotation button 141 and the backward rotation button 142 are respectively located at two opposite ends of the control button 14. It is understood that in other embodiments, the positions of the forward rotation key 141 and the backward rotation key 142 may be reversed. That is, the signal generated when the forward rotation key 141 of the control key 14 is pressed is a forward rotation signal, and the signal generated when the reverse rotation key 142 of the control key 14 is pressed is a reverse rotation signal. When the control key 14 does not receive any pressing signal, the control key 14 is in a stop state. The controller 121 controls the motor 1221 to rotate forward in response to the forward rotation signal to output a forward rotation speed. The controller 121 controls the motor 1221 to rotate reversely in response to the reverse rotation signal to output a reverse rotation speed.

Alternatively, in one embodiment, the pressing force of the forward-rotation key 141 and the backward-rotation key 142 can be positively correlated with the rotation speed of the operating head 123. That is, when the forward rotation key 141 or the backward rotation key 142 is strongly pressed, the rotation speed of the motor 1221 controlled by the controller 121 will increase, and vice versa, will decrease.

In the prior art, the positive and negative rotation of the motor is realized by matching two independent keys, namely, one key controls the positive and negative conversion, and one key controls the switch to realize the positive and negative rotation switching only by matching the two independent keys. That is, when the rotation needs to be reversed, the forward and reverse rotation control key needs to be pressed first, and then the switch control key needs to be pressed. Therefore, compared with the prior art, the forward and reverse rotation switching is simply and directly realized through the forward rotation key position 141 and the reverse rotation key position 142 which are similar to a seesaw on the control key, and the operation is simpler.

Optionally, in one embodiment, referring to fig. 4 and 5, the wrench assembly 12 further includes a power input interface 125, the power input interface 125 is electrically connected to the controller 121, and when the connecting end 320 of the power device 32 extends into the connecting cavity 112, the power device 32 can be electrically connected to the power input interface 125.

It is understood that the connection between the power input interface 125 and the controller 121 may be a direct connection or an indirect connection. When the power input interface 125 is indirectly connected to the controller 121, a control switch may be connected between the power input interface 125 and the controller 121, which is not limited herein.

Further, in one embodiment, the power input interface 125 includes a first power input interface 1251 and a second power input interface 1253. In one embodiment, the first power input interface 1251 is a positive terminal, and the second power input interface 1253 is a negative terminal. In another embodiment, the first power input interface 1251 is a negative terminal and the second power input interface 1253 is a positive terminal.

Optionally, the electric wrench 10 may include a communication port for communicating with the power supply device, wherein in one embodiment, the communication port may include a physical port, as shown in fig. 5, and the electric wrench 10 further includes a first communication port 1255 for transmitting a communication signal. The first communication port 1255 is disposed between the first power input interface 1251 and the second power input interface 1253. In another embodiment, the communication port of the power wrench 10 may also include an invisible software port so that the power wrench 10 can wirelessly communicate with other devices through the communication port.

Further, in this embodiment, the peripheries of the first communication port 1255 and the second power input port 1253 form a substantially semicircular peripheral wall 1254, and the peripheral wall 1254 protects the first communication port 1255 and the second power input port 1253, but of course, the peripheral wall 1254 can also play a fool-proof role to prevent reverse insertion.

Further, in one embodiment, the controller 121 receives a communication signal through the first communication port 1255 and controls the operation state of the electric wrench 10 in response to the communication signal.

For example, the controller 121 obtains a specific parameter value of the power supply device 32 through the first communication port 1255, and the controller 121 determines whether to operate according to the parameter value. Alternatively, the controller 121 obtains the state of the power supply device 32 through the first communication port 1255, and controls to operate if the state is normal, or to not operate if the state is abnormal.

Further, in one embodiment, the controller 121 transmits a communication signal to the power device 32 through the first communication port 1255 to control the operating state of the power device 32.

Further, in one embodiment, the controller 121 is further configured to send an identification signal to the power supply device 32 through the first communication port 1255, so that the power supply device 32 triggers a corresponding operating mode based on the identification signal.

Further, in one embodiment, the triggering the corresponding operating mode based on the identification signal includes: and performing circuit protection based on the circuit protection threshold value corresponding to the identification signal.

Specifically, taking a temperature signal as an example for illustration, when the power supply temperature of the electric wrench 10 is too high and there is a risk of being burnt, the controller 121 sends a control signal to the power supply device 32 through the first communication port 1255 to control the power supply device 32 to stop supplying power to the electric wrench 10 until the temperature of the electric wrench 10 is reduced to meet the requirement, so that the electric wrench 10 can be prevented from being burnt during charging, and the service life of the electric wrench 10 is greatly prolonged. Certainly, a heat dissipation fan may also be disposed in the electric wrench 10, and when the temperature of the electric wrench 10 is too high and the electric wrench 10 is at risk of being burnt when the power supply device 32 supplies power to the electric wrench 10, the temperature signal controls the heat dissipation fan to start to dissipate heat of the electric wrench 10.

Next, taking a voltage signal as an example, when the voltage or the current is too high when the electric wrench 10 is powered, the controller 121 sends a control signal to the power supply device 32 through the first communication port 1255 to control the power supply device 32 to stop supplying power to the electric wrench 10 and send a warning, so as to avoid the influence of overvoltage or overcurrent on the electric wrench 10.

Further, in one embodiment, referring to fig. 3 and 4, the receiving cavity 110 and the connecting cavity 112 are separated by a partition 117. The partition 117 is provided with an opening 1171. The power input interface 125 is disposed in the opening 1171.

Alternatively, in one embodiment, referring again to fig. 3, the inner wall of the connection cavity 112 is adapted to the outer wall of the connection end 320 of the power supply device 32. A first guiding element 118 is disposed on an inner wall of the connecting cavity 112, and the first guiding element 118 is configured to cooperate with a second guiding element 322 on the power supply device 32 to guide the movement of the power supply device 32 relative to the holding end 113.

Further, in one embodiment, the first guiding element 118 is provided with a raised grid inside, which not only satisfies the strength requirement, but also reduces the material usage.

Further, in one embodiment, the first guiding element 118 is disposed on an inner wall of the connecting cavity 112, and the first guiding element 118 is disposed offset from a center line of the connecting cavity 112 and extends along a plugging direction of the holding end 113.

Alternatively, in one embodiment, the first guiding element 118 may be a protrusion or a groove. Accordingly, the second guide 322 may be a groove or a protrusion. In this embodiment, the first guiding element 118 is a protrusion. Accordingly, the second guide 322 is a groove.

Optionally, in one embodiment, referring to fig. 4 to fig. 7, a fastening structure 119 for being connected to the connection end 320 of the power device 32 in a matching manner is disposed on an inner wall of the connection cavity 112; when the connection end 320 of the power supply device 32 is plugged into the connection cavity 112 of the housing 11, the snap structure 119 is configured to cooperate with the snap structure 323 on the power supply device 32, so that a stable connection is formed between the electric wrench 10 and the power supply device 32. It will be appreciated that in other embodiments, the snap feature 119 may be replaced with a threaded feature.

Further, referring to fig. 6 and 7, the power supply device 32 will be described in detail below. The power supply device 32 includes a power supply output interface 321. When the power supply device 32 is connected to the electric wrench 10, the power input interface 125 is electrically connected to the power output interface 321, and the power supply device 32 supplies power to the electric wrench 10 through the power output interface 321. Thus, the power supply device 32 can supply driving power for the rotation of the operating head 123. When the power supply device 32 is no longer connected to the electric wrench 10, the power supply device 32 can be used as a mobile power supply to charge an external device through the power output interface 321, or the power output interface of the power supply device 32 can be connected to a battery through a battery clamp to output current to assist the battery in starting the automobile.

In this embodiment, the power input interfaces 125 correspond to the power output interfaces 321 one by one, and both of them are one. It is understood that the power input interfaces 125 and the power output interfaces 321 may not correspond to each other, that is, the number of the power input interfaces 125 is greater than or less than the number of the power output interfaces 321. It should be understood that the number of the power input interfaces 125 and the power output interfaces 321 is not limited in the present application, and may be one or more.

Optionally, the power input interface 125 and the power output interface 321 may be various types of interfaces such as the CP 3500. The present application is not limited to the types of the power input interface 125 and the power output interface 321.

Alternatively, the power input interface 125 of the electric wrench 10 may be the same type of interface as the input interface of the battery clamp, so that the power device 32 can supply power to the electric wrench 10 or assist in starting the vehicle through the same power output interface 321.

The power output interface 321 includes a first power output interface 3211, a second power output interface 3212, and a second communication port 3213, where the first power output interface 3211 is used to connect the first power input interface 1251, the second power output interface 3212 is used to connect the second power input interface 1253, and the second communication port 3213 is used to connect the first communication port 1255.

When the power output interface 321 of the power supply device 32 is connected to the power input interface 125 of the electric wrench 10, the first power output interface 3211 is connected to the first power input interface 1251, the second power output interface 3212 is connected to the second power input interface 1253, and the second communication port 3213 is connected to the first communication port 1255. The connection between the first power output interface 3211 and the first power input interface 1251 and the connection between the second power output interface 3212 and the second power input interface 1253 form a power path between the electric wrench 10 and the power supply device 32, and the power supply device 32 supplies power to the electric wrench 10 through the power path. The connection between the second communication port 3213 and the first communication port 1255 forms a signal channel between the electric wrench 10 and the power supply device 32, and the power supply device 32 outputs various signals to the electric wrench 10 through the signal channel. The signal may be, but is not limited to, a temperature signal, a cell over-temperature signal, or a low-voltage energy protection signal. Taking the temperature signal as an example for explanation, when the temperature of the power supply device 32 supplying power to the electric wrench 10 is too high, so that the power supply device 32 is at risk of burning, the temperature signal controls the power supply device 32 to stop supplying power to the electric wrench 10 until the temperature of the power supply device 32 is reduced to meet the requirement, so that the power supply device 32 is prevented from being burnt when supplying power to the electric wrench 10, and the service life of the power supply device 32 is greatly prolonged. Of course, the electric wrench 10 may also be provided with a heat dissipation fan (not shown), and when the temperature of the power supply device 32 supplying power to the electric wrench 10 is too high, so that the power supply device 32 may be burned, the temperature signal controls the heat dissipation fan to start to dissipate heat of the power supply device 32.

The port types of the second communication port 3213 and the first communication port 1255 are not specifically limited in this application.

It is understood that the first power output interface 3211 and the first power input interface 1251 are corresponding positive interfaces, and the second power output interface 3212 and the second power input interface 1253 are corresponding negative interfaces. Of course, the first power output interface 3211 and the first power input interface 1251 may also be corresponding negative interfaces, and the second power output interface 3212 and the second power input interface 1253 may be corresponding positive interfaces, which is not limited in this application.

In this embodiment, the end surface of the connection end 320 is provided with a first groove 3201 and a second groove 3202, the first groove 3201 and the second groove 3202 are arranged at intervals, the first groove 3201 and the second groove 3202 have different shapes and/or the first groove 3201 and the second groove 3202 have different inner diameters; the first power output interface 3211 is disposed in the first groove 3201, the second power output interface 3212 and the second communication port 3213 are disposed in the second groove 3202 at an interval, and the second communication port 3213 is disposed between the first power output interface 3211 and the second power output interface 3212. The design of the first groove 3201 and the second groove 3202 prevents the first power output interface 3211 from mistakenly touching the second power input interface 1253 and/or the second power output interface 3212 from mistakenly touching the first power input interface 1251 when the first power output interface 3211 is connected to the first power input interface 1251 and the second power output interface 3212 is connected to the second power input interface 1253, thereby preventing the power supply device 32 from stopping supplying power to the electric wrench 10 due to a short circuit and preventing the power supply device 32 from being burnt due to a short circuit, and prolonging the service life of the power supply device 32. Moreover, the second power output interface 3212 and the second communication port 3213 are designed to be spaced apart from each other in the second groove 3202, have different shapes and/or different inner diameters, and thus play a role in foolproof, thereby preventing the first power input interface 1251 of the electric wrench 10 from being connected to the second power output interface 3212 of the power supply device 32 and the second power input interface 1253 of the electric wrench 10 from being connected to the first power output interface 3211 of the power supply device 32, and improving the safety of the electric wrench 10 during use. It is understood that the second communication port 3213 may be disposed in the first groove 3201, and the second communication port 3213 is spaced apart from the first power output interface 3211 in the first groove 3201.

As shown in fig. 6 and 7, optionally, the power supply device 32 is further provided with a charging interface 327, and the charging interface 327 is used for charging the power supply device 32 or the load device. The user just can charge for power source equipment 32 through interface 327 that charges to power source equipment 32 circulated use avoids the user to carry too much power source equipment 32 when going out with electric wrench 10, alleviates user's heavy burden, and the user of being convenient for goes out to carry electric wrench 10. In the present embodiment, the charging interface 327 includes a Type-C interface, so that the power supply device 32 can be charged not only through the charging interface 327, but also as a mobile charger to charge a load device such as a mobile phone by outputting a voltage through the charging interface 327. It is to be understood that the interface Type of the charging interface 327 is not specifically limited in this application, and the charging interface 327 may further include a USB interface such as a Type-a interface or another Type of interface such as a DC interface.

In the present embodiment, charging interface 327 is provided on an end surface of connection end 320. It is understood that charging interface 327 may be disposed on an end surface of body end 325 facing away from connector end 320 or elsewhere, and the application is not limited thereto.

As shown in fig. 6 and 7, the power supply device 32 is further provided with a power amount display button 328 and at least one display lamp 329 provided on the peripheral surface of the body end 325. The power display button 328 may be connected to a display light 329, and the display light 329 is used to display the remaining amount of the power supply device 32. When the power supply device 32 is sufficiently stored, the user presses the electric quantity display button 328, and the display lamp 329 emits light; when the power supply device 32 is short of stock, the user presses the power display button 328, and the display lamp 329 does not emit light. Thus, the user can judge whether the storage amount of the power supply device 32 is sufficient by observing whether the display lamp 329 emits light, and the method is intuitive, convenient and easy to observe. Alternatively, the power display button 328 and the display lamp 329 may be connected to the controller 121, and the controller 121 controls the lighting state of the display lamp 329 based on the power in the power supply device 32 in response to a pressing signal of the power display button 328.

In the present embodiment, the number of the display lamps 329 is four. The four display lamps 329 are provided on the peripheral wall of the second connecting portion 325 to be exposed to the outside. When the user presses the power display button 328, the user can determine the remaining amount of the power supply device 32 by the number of lights emitted from the display lamp 329. Specifically, when the number of the light-emitting display lamps 329 is zero, it represents that the power supply device 32 is in short stock and cannot supply power to the electric wrench 10 or other load devices; when the number of the lights emitted by the indicator light 329 is gradually increased from zero to four, the inventory of the power supply equipment 32 is gradually increased; when the number of the display lamps 329 lighted is four, it represents that the stock of the power supply device 32 tends to be saturated. It is to be understood that the number of the display lamps 329 is not particularly limited in the present application, and the number of the display lamps 329 may be one or more than one.

It is understood that the display lamp 329 may be disposed on the end surface of the body terminal 325 or other position of the power supply device 32 as long as the display lamp 329 can be exposed outside the power supply device 32, which is not specifically limited in this application.

It is understood that the power display button 328 may be disposed on the end surface of the connection end 320 or other locations of the power supply device 32, and the application is not limited thereto.

The above is not limited to the embodiments of the present application, the description of the above specific embodiments is intended to describe and illustrate the technical solutions of the present application, and the above specific embodiments are only illustrative and not restrictive. All the equivalent alterations and modifications of the technical solutions and patent concepts of the present application, which are disclosed in the present patent application by a person skilled in the art, are within the scope of the present patent application.

Claims (18)

1. An electric wrench is characterized by comprising a shell and a wrench assembly, wherein the shell is provided with an accommodating cavity and a connecting cavity adjacent to the accommodating cavity, and the wrench assembly is arranged in the accommodating cavity; the connecting cavity is used for connecting a connecting end of power supply equipment with an automobile starting function, so that the wrench assembly is electrically connected with the connecting end of the power supply equipment to obtain electric energy from the power supply equipment.

2. The electric wrench as claimed in claim 1, wherein the housing includes a main body portion and a holding end, the connection cavity is disposed on the holding end, and the power supply device and the holding end are inserted into each other to form the holding portion of the electric wrench.

3. The electric wrench as claimed in claim 2, wherein the housing includes a first housing and a second housing, the first housing and the second housing are butted against each other to form a hollow cavity, the cavity includes the receiving cavity and the connecting cavity, the receiving cavity is partially disposed in the main body portion and partially disposed at an end of the holding end close to the main body portion.

4. The power wrench as claimed in claim 2, wherein the wrench assembly includes a controller, a driving member and an operating head, the controller is electrically connected to the driving member and received in the receiving cavity, and the operating head extends from the driving member to an outside of the receiving cavity.

5. The power wrench as claimed in claim 4, wherein the wrench assembly further includes a power input interface electrically connected to the controller, and when the connection end of the power device is inserted into the connection cavity, the power device is electrically connected to the power input interface.

6. The power wrench of claim 5, further comprising a communication port for transmitting communication signals.

7. The power wrench of claim 6, wherein the power input interface includes a first power input interface and a second power input interface, and the communication port is disposed between the first power input interface and the second power input interface.

8. The power wrench of claim 6, wherein the controller receives a control signal via the communication port and controls the operating state of the power wrench in response to the control signal.

9. The power wrench of claim 6, wherein the controller transmits a control signal to the power device via the communication port to control an operating state of the power device.

10. The power wrench of claim 6, wherein the controller is further configured to send an identification signal to the power device via the communication port to cause the power device to trigger a corresponding operating mode based on the identification signal.

11. The power wrench of claim 10, wherein the triggering a corresponding operating mode based on the identification signal comprises: and performing circuit protection based on the circuit protection threshold corresponding to the identification signal.

12. The electric wrench as claimed in claim 5, wherein a partition is disposed in the housing and divides the receiving cavity and the connecting cavity, and an opening is disposed on the partition and the power input interface is disposed in the opening.

13. The power wrench as claimed in claim 2, wherein the connection chamber has a first guide member disposed on an inner wall thereof for mating with a second guide member on the power supply apparatus.

14. The electric wrench as claimed in claim 13, wherein the first guide member is disposed offset from a center line of an inner wall of the connection chamber and extends in the insertion and extraction direction of the grip end.

15. The electric wrench as claimed in claim 13, wherein the inner wall of the connection cavity is provided with a snap structure for engaging with the connection end of the power supply device; when the connecting end of the power supply equipment is inserted into the connecting cavity of the shell, the buckle structure is used for being matched with the hook structure on the power supply equipment to form stable connection.

16. The power wrench of claim 4, further comprising a control button, the control button being electrically connected to the controller; the control key is provided with a forward rotation key position and a reverse rotation key position, and the forward rotation key position and the reverse rotation key position are respectively positioned at two opposite ends of the control key; when the forward rotation key position of the control key is pressed, the generated signal is a forward rotation signal, and when the reverse rotation key position of the control key is pressed, the generated signal is a reverse rotation signal; the controller responds to the forward rotation signal to control the driving piece to rotate forward so as to output forward rotation speed; the controller responds to the reverse rotation signal to control the driving piece to reversely rotate so as to output reverse rotation speed.

17. The electric wrench as claimed in claim 16, wherein the magnitude of the pressing force at the forward-rotation key position and the reverse-rotation key position is positively correlated with the rotational speed of the operating head.

18. An electric wrench system, comprising the electric wrench of any one of claims 1 to 17 and a power supply device having a vehicle start function, wherein the power supply device comprises a connection terminal, and the connection cavity of the electric wrench is connected with the connection terminal of the power supply device in a plug-in manner.

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