Lithium battery heat dissipation structure of electric tool

Abstract

The utility model discloses an electric tool lithium battery heat dissipation structure which comprises a lithium battery upper shell and a tool shell, the lithium battery upper shell is located at the bottom of the tool shell, a plurality of heat dissipation holes are formed in the lithium battery upper shell, a through hole is formed in the position, above the lithium battery upper shell, of the tool shell, and the through hole is communicated with the tool shell. A motor is installed on the tool shell and located on one side of the through hole. According to the electric tool, the through holes are formed in the upper portion of the upper shell of the lithium battery, air draft is carried out through blades of the motor of the electric tool, and the lithium battery pack is cooled; heat of the lithium battery is sucked out by fan blades of the whole machine; and the heat dissipation of the lithium battery is realized under the condition of not adding extra electric appliances.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium battery heat dissipation, in particular to a heat dissipation structure for a lithium battery of an electric tool. Background Art

[0002] Electric tools are mainly divided into metal cutting electric tools, grinding electric tools, assembly electric tools and electric tools for railways. Common electric tools include electric drills, electric grinders, electric wrenches and electric screwdrivers, electric hammers and impact electric drills, concrete vibrators, and electric planers. Many existing electric tools are driven by lithium batteries.

[0003] A novel lithium battery with a heat dissipation structure disclosed in the existing publication number CN217881606U; its technical solution includes: a frosted shell and an upper cover. The outer surface of the top of the frosted shell is provided with a housing, the top of the housing is provided with an upper cover, the top inner part of the frosted shell is provided with a battery pack through a battery bracket, a partition board is installed on the top of the battery bracket, a plug-in interface is installed on one side of the top of the upper cover, a micro motor is installed in the middle of the top inner part of the upper cover, a blade is installed on the output shaft of the micro motor, a heat dissipation hole is provided on one side of the top of the upper cover close to the plug-in interface, and a ventilation hole is provided at the bottom of the heat dissipation hole inside the upper cover; it solves the problems that the structure of the existing device is relatively simple, the heat generated during battery use cannot be discharged, and after long-term use, the lithium battery is extremely easy to be damaged and has a poor service life, reduces the operating temperature of the battery pack, and thus improves the service life of the lithium battery.

[0004] The prior art realizes the heat dissipation of the lithium battery by adding an additional motor and a blade; however, due to the addition of an additional motor, its power consumption will increase, resulting in a relatively reduced use time of the device; in addition, the motor will generate heat during operation, which will affect the heat dissipation inside the lithium battery housing to a certain extent; in order to solve the above technical problems, we propose a heat dissipation structure for a lithium battery of an electric tool. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a heat dissipation structure for a lithium battery of an electric tool to solve the problems in the prior art that when an additional motor is added, its power consumption will increase, resulting in a relatively reduced use time of the device; in addition, the motor will generate heat during operation, which will affect the heat dissipation inside the lithium battery housing to a certain extent.

[0006] To achieve the above purpose, the utility model provides the following technical solution: a heat dissipation structure for a lithium battery of an electric tool, including an upper lithium battery housing and a tool housing. The upper lithium battery housing is located at the bottom of the tool housing. The upper lithium battery housing is provided with a plurality of heat dissipation holes. The tool housing is provided with a through hole above the upper lithium battery housing, and a motor is installed on one side of the tool housing at the through hole.

[0007] Preferably, reinforcing ribs are provided at the heat dissipation holes of the upper shell of the lithium battery.

[0008] Preferably, the upper shell of the lithium battery and the reinforcing ribs are of an integral structure.

[0009] Preferably, the heat dissipation holes are one of rectangular holes, circular holes, and oval holes.

[0010] Compared with the prior art, the beneficial effects of the present utility model are as follows: A ventilation opening is provided above the upper shell of the lithium battery, and the blades of the motor of the electric tool itself are used for air extraction to cool the temperature of the lithium battery pack; the heat of the lithium battery is sucked out by the fan blades of the whole machine; without adding additional electrical appliances, heat dissipation of the lithium battery is achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The drawings are used to provide a further understanding of the present utility model, and constitute a part of the specification. Together with the embodiments of the present utility model, they are used to explain the present utility model, and do not constitute a limitation to the present utility model. In the drawings:

[0012] Figure 1 is a schematic structural diagram of the present utility model;

[0013] Figure 2 is a schematic structural diagram of the bottom view of the present utility model;

[0014] Figure 3 is a schematic structural diagram of the present utility model when the motor is removed;

[0015] Figure 4 is a schematic structural diagram of the upper shell of the lithium battery of the present utility model;

[0016] Figure 5 is the present utility model Figure 4 schematic structural diagram of the bottom view;

[0017] Figure 6 is a top view of the upper shell of the lithium battery of the present utility model.

[0018] In the figure: 1, upper shell of the lithium battery; 2, tool shell; 3, motor; 4, heat dissipation hole; 5, reinforcing rib. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] To make the purpose, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the protection scope of the present utility model. Therefore, the following detailed description of the embodiments of the present utility model provided in the accompanying drawings is not intended to limit the scope of the present utility model to be protected, but merely represents the selected embodiments of the present utility model.

[0020] Please refer to Figures 1-6 , in an embodiment of the present utility model, a heat dissipation structure for a lithium battery of a power tool includes a lithium battery upper housing 1 and a tool housing 2. The lithium battery upper housing 1 is located at the bottom of the tool housing 2. The lithium battery upper housing 1 is provided with a plurality of heat dissipation holes 4. The tool housing 2 is provided with a through hole above the lithium battery upper housing 1. A motor 3 is installed on one side of the through hole of the tool housing 2; A vent is provided above the lithium battery upper housing 1, and the fan blades of the motor 3 of the power tool itself are used to draw air to cool the temperature of the lithium battery pack; The heat of the lithium battery is sucked out by the fan of the whole machine.

[0021] Reinforcing ribs 5 are provided at the heat dissipation holes 4 of the lithium battery upper housing 1; The lithium battery upper housing 1 and the reinforcing ribs 5 are of an integral structure; The heat dissipation holes 4 are one of rectangular holes, circular holes, and oval holes.

[0022] The working principle of the present utility model is: A vent is provided above the lithium battery upper housing 1, and the fan blades of the motor 3 of the power tool itself are used to draw air to cool the temperature of the lithium battery pack; The heat of the lithium battery is sucked out by the fan of the whole machine.

[0023] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. An electric tool lithium battery heat dissipation structure, comprising a lithium battery upper shell (1) and a tool shell (2), characterized in that: The upper housing (1) of the lithium battery is located at the bottom of the tool housing (2). The upper housing (1) of the lithium battery is provided with a plurality of heat dissipation holes (4). The tool housing (2) is provided with a through hole above the upper housing (1) of the lithium battery, and a motor (3) is installed on one side of the through hole of the tool housing (2).

2. The heat dissipation structure of the lithium battery of the power tool according to claim 1, wherein: Reinforcing ribs (5) are arranged at the heat dissipation holes (4) of the upper housing (1) of the lithium battery.

3. The heat dissipation structure of a lithium battery for an electric tool according to claim 2, characterized in that: The upper housing (1) of the lithium battery and the reinforcing ribs (5) are of an integral structure.

4. The heat dissipation structure of a lithium battery for a power tool according to claim 1, characterized in that: The heat dissipation holes (4) are any one of rectangular holes, circular holes, and oval holes.

Images