CN204497813U - A kind of power brick of electric tool - Google Patents

Abstract

The utility model discloses a battery pack of an electric tool, which comprises a casing (1), a battery pack and a controller arranged in the casing (1), and a battery pack arranged in the casing (1) for connecting with the electric tool The first output interface (2) matched with the connector on the controller, the controller is electrically connected with the battery pack, and the first output interface (2) is electrically connected with the battery pack, and it is characterized in that: it also includes a ), the DC input interface (3) and the second output interface (4) are respectively electrically connected to the battery pack through the controller. The utility model provides a battery pack that can be charged by using a universal charger, and not only used as a power supply of a corresponding electric tool.

Description

A battery pack for an electric tool

technical field

The utility model relates to the technical field of battery packs, in particular to a battery pack of an electric tool.

Background technique

According to the type of power supply, electric tools can usually be divided into plug-in type and rechargeable battery type, and with the increase of the capacity, power and service life of rechargeable batteries, more and more of them are applied to outdoor, vehicle-mounted, etc. Power supply occasions, and because it has no restrictions on power cords, it is accepted by more and more people even in indoor occasions, thus replacing plug-in power tools. However, different manufacturers, different types, and different styles of power tools often have different types of battery packs and connector structures, which leads to the need for each battery pack to be equipped with its own dedicated charger, especially for large repair shops that frequently use more types. In the place of electric tools, too many battery pack chargers not only cause inconvenience in storage, but also make operators spend more time searching for the matching charger among many chargers.

In addition, all kinds of existing battery packs are only used as the power source of their corresponding electric tools, and are idle for a long time, so the purpose is relatively single.

Contents of the invention

The technical problem to be solved by the utility model is to provide a battery pack that can be charged by using a universal charger, and not only used as a power source of a corresponding electric tool.

The technical scheme adopted by the utility model is: to provide a battery pack of an electric tool, which includes a housing, a battery pack and a controller located in the housing, and a connector located in the housing to match the connector on the electric tool The first output interface of the controller is electrically connected to the battery pack, and the first output interface is electrically connected to the battery pack. It also includes a DC input interface and a second output interface arranged on the housing. The DC input interface and the second output interface are respectively electrically connected to the battery pack through the controller.

After adopting the above structure, a battery pack of an electric tool of the present invention has the following advantages compared with the prior art: First, it can be charged with a conventional charger through a universal DC input interface, so no matter how many types of For electric tools, different battery packs can be charged by a charger. Secondly, the second output interface provided enables the battery pack of the present utility model to be used as a mobile power source for other mobile devices when the corresponding electric tool is idle. Use to charge electronic devices such as mobile phones, tablet computers, and digital cameras.

As an improvement, there are multiple second output interfaces. Multiple second output interfaces are set to facilitate charging of various types of mobile devices.

Preferably, the second output interface includes one or more of a USB interface, an HDMI interface and a Micro USB interface.

As another improvement, the casing where the DC input interface and the second output interface are located is provided with a protection mechanism for preventing the external connectors from bending when the external connectors are connected to the corresponding respective interfaces on the casing. When the external joint is inserted into the corresponding interface of the utility model, if it is subjected to an external lateral force, it may cause the external joint to bend or directly break, and it may also cause damage to the interface on the utility model, which can be well protected by the protection mechanism. Avoid damage to external joints and interfaces caused by accidental collisions.

Preferably, the protection mechanism refers to that pits for accommodating external connectors are respectively formed on the outer surface of the housing where the DC input interface and the second output interface are located, and the DC input interface and the second The output interface is arranged on the bottom surface of the pit, and the depth of the pit is greater than the length of the external joint. By setting the dimple, the external joint is accommodated in the dimple, thereby avoiding the situation that the external force impacts the joint laterally.

Preferably, the protection mechanism includes stoppers arranged on the housing and arranged symmetrically along both sides of the positions of the respective interfaces, the width and height of the stoppers are greater than the width and height of the external joints on the corresponding interfaces. Setting the stopper can achieve the same anti-collision purpose, and it is not necessary to provide additional pits on the housing, which makes the processing more convenient. In addition, the stopper can be additionally added after the shell is processed, without being integrally formed with the shell.

As a last improvement, the controller includes a second output interface voltage detection module, a control module and a transformer, the second output interface voltage detection module is signal-connected to the control module through a feedback circuit, the control module, the transformer and the second output The interfaces are electrically connected in sequence. The voltage required by the external electronic equipment connected to the second output interface is not the same, so the voltage value required by the corresponding electronic equipment can be detected well through the detection module, the signal is sent to the control module through the feedback circuit, and the output voltage is converted through the transformer to the voltage required by the external electronic device.

Description of drawings

FIG. 1 is a schematic structural view of a battery pack of an electric tool of the present invention.

Fig. 2 is a front view of a battery pack of an electric tool of the present invention.

Fig. 3 is a schematic diagram of a connection state between a battery pack and an external connector of an electric tool according to the present invention.

Wherein, 1. the casing, 2. the first output interface, 3. the DC input interface, 4. the second output interface, and 5. the external connector. the

Detailed ways

Below in conjunction with accompanying drawing and specific embodiment, the utility model is further described.

As shown in the figure, the utility model provides a battery pack of an electric tool, which includes a housing 1, a battery pack and a controller disposed in the housing 1, and a battery pack disposed in the housing 1 for connecting with the electric tool. The connectors match the first output interface 2, the controller is electrically connected to the battery pack, the first output interface 2 is electrically connected to the battery pack, and the battery pack of the electric tool also includes a DC input on the casing 1 The interface 3 and the second output interface 4, the DC input interface 3 and the second output interface 4 are respectively electrically connected to the battery pack through the controller.

There are multiple second output interfaces 4 . Preferably, the second output interface 4 includes one or more of a USB interface, an HDMI interface and a Micro USB interface.

The housing 1 where the DC input interface 3 and the second output interface 4 are located is provided with a protection mechanism for preventing the external joint 5 from bending when the external joint 5 is connected to the corresponding interface on the housing 1 .

The protection mechanism refers to that pits for accommodating external joints are formed on the outer surface of the housing where the DC input interface 3 and the second output interface 4 are located, and the DC input interface 3 and the second output interface The output interface 4 is arranged on the bottom surface of the pit, and the depth of the pit is greater than the length of the external connector.

The protection mechanism includes blocks arranged on the housing 1 and arranged symmetrically along both sides of the positions of the respective interfaces. The width and height of the blocks are greater than the width and height of the external joint 5 on the corresponding interface. The above-mentioned width and height of the stopper means that the two symmetrically arranged stoppers are the same two stoppers, and the two identical stoppers are arranged in parallel, and the length and width of the opposite planes are the above-mentioned stoppers The width and height of , hereinafter referred to as the occlusion plane. After the external joint is inserted into the corresponding interface, the external joint is located between the two blocks, and the projection of the external joint to the shielding plane is located within the projection of the block to the shielding plane.

The controller includes a second output interface voltage detection module, a control module and a transformer, the second output interface voltage detection module is connected to the control module signal through a feedback circuit, and the control module, the transformer and the second output interface are electrically connected in sequence. connect. After the external electronic device is inserted into the corresponding second output interface, the second output interface voltage detection module feeds back the detected voltage information to the control module, and the control module controls the transformer to adjust the voltage, and then sends it to the second output interface, thereby All external electronic devices with different voltage requirements can be connected with the battery pack of the utility model.

The preferred embodiments of the present invention have been described above, but should not be construed as limiting the claims. The utility model is not limited to the above embodiments, and its specific structure is allowed to change, and all the various changes made within the protection scope of the independent requirements of the utility model are all within the protection scope of the utility model.

Claims (7)

1. A battery pack of an electric tool, which includes a housing (1), a battery pack and a controller disposed in the housing (1), and a connector disposed in the housing (1) for connecting with the electric tool Matching first output interface (2), the controller is electrically connected to the battery pack, the first output interface (2) is electrically connected to the battery pack, and is characterized in that it also includes a A DC input interface (3) and a second output interface (4), the DC input interface (3) and the second output interface (4) are respectively electrically connected to the battery pack through the controller. 2. The battery pack of an electric tool according to claim 1, characterized in that there are multiple second output interfaces (4). 3. The battery pack of an electric tool according to claim 2, characterized in that: the second output interface (4) includes one or more of a USB interface, an HDMI interface and a Micro USB interface. 4. The battery pack of an electric tool according to claim 1, characterized in that: the housing (1) where the DC input interface (3) and the second output interface (4) are located is provided with a device for preventing A protection mechanism for the bending of the external joints (5) when the external joints (5) are connected to corresponding respective interfaces on the housing (1). 5. The battery pack of an electric tool according to claim 4, characterized in that: the protection mechanism refers to the housing where the DC input interface (3) and the second output interface (4) are located. Dimples for accommodating external joints (5) are respectively formed on the outer surface, the DC input interface (3) and the second output interface (4) are arranged on the bottom surface of the dimples, and the depth of the dimples is greater than that of the external joints ( 5) The length. 6. The battery pack of an electric tool according to claim 4, characterized in that: the protective mechanism includes stoppers arranged on the casing (1) and arranged symmetrically along both sides of the positions where the respective interfaces are located, The width and height of the stopper are greater than the width and height of the external joint (5) on the corresponding interface. 7. The battery pack of an electric tool according to claim 1, wherein the controller includes a second output interface voltage detection module, a control module and a transformer, and the second output interface voltage detection module uses feedback The circuit is signal-connected to the control module, and the control module, the transformer and the second output interface are electrically connected in sequence.