Battery pack and electric tool

Abstract

The utility model relates to a battery pack and an electric tool, and the battery pack comprises a first housing which is provided with a first installation part; the second shell is provided with a second mounting part; the periphery of the display panel is provided with a limiting part, the surface of the display panel is provided with buttons and a display part, and the limiting part is matched with the first mounting part and the second mounting part; the battery cell is at least partially accommodated in the first shell and / or the second shell; the bracket is used for supporting the battery cell and is at least partially accommodated in the first shell and / or the second shell; the circuit board is connected to the bracket; the electric quantity switch is connected to the circuit board and is triggered by the button; and the display part is connected to the circuit board and is triggered by the electric quantity switch, so that the effect of improving the assembly efficiency is achieved.

Description

Technical Field

[0001] This application relates to the technical field of tools, and particularly to a battery pack and a power tool. Background Art

[0002] With the rapid development of power tools, cordless power tools have gradually replaced corded tools and become the most popular products among power tools. Subsequently, there has been a rapid development of battery packs applied to cordless power tools.

[0003] In related technologies, such as the Chinese patent with the publication number CN1154555C, a power tool is disclosed. Among them, a rechargeable battery box is detachably connected to a housing through a rail groove structure. The battery box is locked at an operating position of the housing by means of a locking device and can be moved to a release position. At the operating position, the electrical contact members of the battery box are electrically connected to the relevant electrical contact members of the power tool along a contact length extending longitudinally in the rail groove structure. A spring is provided between the battery box and the tool housing, and the spring loads the inserted battery box in the moving direction out of its operating position.

[0004] However, currently, a lamp board for displaying the remaining power of the battery pack is added to the surface of the battery pack. Since smaller components such as buttons are also provided on the lamp board, the assembly is relatively inconvenient. Summary of the Utility Model

[0005] Based on this, in view of the problem of inconvenient assembly of the lamp board, it is necessary to provide a battery pack and a power tool.

[0006] To solve the above technical problems, the present application is implemented as follows:

[0007] In one embodiment, a battery pack is provided, including:

[0008] A first housing provided with a first mounting portion;

[0009] A second housing provided with a second mounting portion;

[0010] A display board having a limiting portion provided at the periphery and a button and a display portion provided on the surface, and the limiting portion cooperates with the first mounting portion and the second mounting portion;

[0011] A battery cell, at least part of which is received in the first housing and / or the second housing;

[0012] A bracket for supporting the battery cell and at least part of which is received in the first housing and / or the second housing;

[0013] A circuit board connected to the bracket;

[0014] A power switch connected to the circuit board and triggered by the button;

[0015] A display element is connected to the circuit board and is triggered by the power switch.

[0016] In one or more optional embodiments, a supporting portion is further included, the display panel also includes a pushing member, the pushing member has a pushing arm for triggering the power switch, the button includes a force-bearing portion and a force-transmitting portion, at least one of the force-transmitting portion, the pushing member and the supporting portion is an elastic member, and when the button is pressed toward the power switch, the elastic member is deformed and has a tendency to reset the button.

[0017] In one or more optional embodiments, the force transmission part is an elastic part, the pushing part is linked with the force bearing part, and the supporting part is in contact with the force transmission part.

[0018] In one or more optional embodiments, the pushing member is an elastic member, the supporting portion is arranged at an end of the pushing member away from the pushing arm, and the supporting portion is mounted on the second shell.

[0019] In one or more optional embodiments, the support portion is an elastic member, and the support portion is integrally formed with the second shell.

[0020] In one or more optional embodiments, a light guide is provided on the display panel, one end of the light guide is connected to the display portion, and the other end is located at the display portion.

[0021] In one or more optional embodiments, a plurality of display elements are provided, and a light-isolating plate is provided between two adjacent display elements.

[0022] In one or more optional embodiments, the first mounting portion and the second mounting portion are grooves, and the limiting portion is a flange that matches the grooves.

[0023] In one or more optional embodiments, it further includes a locking portion, an operating portion, a connecting plate, a locking hole and a reset member, wherein the connecting plate connects the locking portion and the operating portion, the locking portion passes through the locking hole, the reset member abuts against the connecting plate, a trigger arm is provided at the bottom of the operating portion, and a guide portion is provided on one side of the push arm, and when the operating portion is pressed, the reset member is deformed, and the trigger arm abuts against the guide portion.

[0024] On the other hand, based on the same inventive concept, the present application also discloses an electric tool, comprising:

[0025] A housing formed with a grip portion and a battery connection portion;

[0026] a motor at least partially contained in the housing;

[0027] A transmission mechanism, connected to the motor and transmitting the power of the motor to the output shaft;

[0028] And a battery pack as described in any of the above embodiments;

[0029] The battery pack includes a locking portion, and the battery connection portion is provided with a locking hole. When the battery pack is connected to the battery connection portion, the locking portion is inserted into the locking hole.

[0030] In the embodiment of the present application, the buttons and the display portion on the display board are pre-assembled together in a component manner, and the display board is installed on the first housing and the second housing by means of the mutual cooperation of the first installation portion, the second installation portion and the limiting portion, thereby greatly improving the installation efficiency of the display board. Description of the Drawings

[0031] Figure 1 It is an exploded structural schematic diagram of a battery pack in an embodiment of the present application;

[0032] Figure 2 It is an exploded structural schematic diagram of the battery pack from another perspective in an embodiment of the present application;

[0033] Figure 3 It is a schematic diagram of the structure at the display board in an embodiment of the present application;

[0034] Figure 4 It is a schematic diagram of the structure at the display board in another embodiment of the present application;

[0035] Figure 5 It is a schematic diagram of the structure around the display board in another embodiment of the present application;

[0036] Figure 6 It is a schematic diagram of the structure around the button in an embodiment of the present application;

[0037] Figure 7 It is an exploded structural schematic diagram of a power tool and a battery pack in an embodiment of the present application.

[0038] Description of the Drawings: 1. First housing; 11. Battery cell; 12. Bracket; 13. Circuit board; 131. Power switch; 132. Display component; 14. First groove; 141. First mounting portion; 15. Light shielding plate; 2. Second housing; 21. Second groove; 211. Second mounting portion; 3. Display board; 31. Limiting portion; 32. Button; 321. Load-bearing portion; 322. Force-transmitting portion; 33. Display portion; 331. Light guiding component; 4. Pushing member; 41. Pushing arm; 411. Guiding portion; 5. Supporting portion; 6. Connecting plate; 61. Locking portion; 62. Operating portion; 621. Triggering arm; 63. Reset member; 7. Locking hole; 8. Outer shell; 81. Holding portion; 82. Battery connection portion; 821. Lock hole. Detailed Description of the Invention

[0039] To make the above objects, features, and advantages of the present application more apparent and understandable, the following Figures 1 to 7 provides a detailed description of the specific embodiments of the present application. In the following description, many specific details are set forth to facilitate a thorough understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the spirit of the present application. Therefore, the present application is not limited by the specific embodiments disclosed below.

[0040] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present application.

[0041] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present application, "a plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0042] In this application, unless otherwise clearly specified or limited, terms such as "installed", "connected", "linked", "fixed", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0043] In this application, unless otherwise clearly specified or limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may mean that the first feature is directly above or obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the horizontal height of the first feature is less than that of the second feature.

[0044] It should be noted that when an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used herein are only for the purpose of illustration and do not represent the only implementation.

[0045] Refer to Figure 1 , FIG. 1 shows an exploded structural schematic diagram of a battery pack in an embodiment of this application. An embodiment of this application provides a battery pack, including a first housing 1, a second housing 2, a display board 3, a battery cell 11, a bracket 12, a circuit board 13, a power switch 131 and a display member 132. Among them, the first housing 1 and the second housing 2 can be designed as half shells and are spliced with each other to form a complete housing. Preferably, the second housing 2 can be at the bottom and the first housing 1 can be installed on the top of the second housing 2. The bracket 12 is at least partially received in the first housing 1 and / or the second housing 2. Specifically, the bracket 12 can be installed in the second housing 2 through bolts, and the second housing 2 can be covered on the part of the bracket 12 protruding from the first housing 1, so that the bracket 12 can be cooperatively covered by the first housing 1 and the second housing 2.

[0046] Refer to Figure 1 and Figure 2, Figure 2 shows an exploded structural schematic diagram of another perspective of the battery pack in an embodiment of the present application. The battery cell 11 can be restricted on the bracket 12. The bracket 12 can be provided with holes for the battery cell 11 to be inserted. Nickel sheets can be installed at the ends of the bracket 12 for connecting the battery cells 11 into one or two or more battery packs. The circuit board 13 can be installed on the bracket 12. The circuit board 13 is used to detect and control the external discharge of the battery cell 11. The power switch 131 can be a micro switch, and the power switch 131 can be installed on the circuit board 13. The display element 132 can be an LED lamp bead, and the display element 132 can be installed on the circuit board 13.

[0047] In one or more preferred embodiments, the display board 3 can be a separately provided board, and the display board 3 can be installed at the junction of the first housing 1 and the second housing 2. The first housing 1 can be provided with a first groove 14, and a first mounting portion 141 can be provided at the boundary of the first groove 14. The second housing 2 can be provided with a second groove 21, and a second mounting portion 211 can be provided at the boundary of the second groove 21. A limiting portion 31 can be provided at the periphery of the display board 3, and the limiting portion 31 cooperates with the first mounting portion 141 and the second mounting portion 211 to install the display board 3 between the first housing 1 and the second housing 2. Those skilled in the art can understand that the first housing 1 or the second housing 2 may not be provided with a groove, that is, the first mounting portion 141 is directly formed at the boundary of the first housing 1 or the second mounting portion 211 is directly formed at the boundary of the second housing 2, which is conceivable by those skilled in the art and is of course within the scope of protection of the embodiments of the present application.

[0048] In one or more preferred embodiments, the first mounting portion 141 and the second mounting portion 211 can be grooves, and the limiting portion 31 can be a flange adapted to the grooves. The cross-section of the first mounting portion 141 and the second mounting portion 211 along their thickness directions can be concave, and the limiting portion 31 can be convex along its thickness direction to limit the position of the display board 3.

[0049] Refer to Figure 2 and Figure 3, Figure 3 shows a schematic diagram of the structure at the display board in an embodiment of the present application. In one or more preferred embodiments, buttons 32 and a display part 33 may be provided on the display board 3. The buttons 32 may be installed on the display board 3, and the display part 33 may be a display hole. A light guide member 331 may be installed in the display part 33. The light guide member 331 may be made of a light guide material. One end of the light guide member 331 is installed in the display part 33, and the other end is installed at the display member 132, so as to guide the light at the display member 132 to the display part 33 for display. In particular, the display board 3 may be used as a small installation unit, and after the components on the display board 3 are installed, it is assembled as an installation unit between the first housing 1 and the second housing 2, thereby improving the installation efficiency.

[0050] In one or more preferred embodiments, a plurality of display members 132 may be provided, and a light shielding plate 15 may be provided between two adjacent display members 132. The light shielding plate 15 may be made of a light-impermeable material, so as to reduce the influence of light between two adjacent display members 132.

[0051] In one or more preferred embodiments, one of the first installation part 141, the second installation part 211, and the limiting part 31 is a groove, and the rest are flanges that cooperate with the groove. Specifically, in the embodiment of the present application, the first installation part 141 and the second installation part 211 are grooves, and the limiting part 31 is a flange. The first installation part 141 and the second installation part 211 jointly limit the position of the display board 3.

[0052] In one or more preferred embodiments, the display board 3 further includes a pushing member 4. The pushing member 4 may be installed on the button 32 or integrally formed with the button 32. A pushing arm 41 may be formed on the pushing member 4. The pushing arm 41 may extend from the button 32 to the power switch 131. When the button 32 is pressed, the pushing arm 41 touches the power switch 131.

[0053] In one or more preferred embodiments, the button 32 may include a force-bearing part 321 and a force-transmitting part 322. The force-bearing part 321 may protrude outside the display board 3 for easy pressing by an operator. One end of the force-transmitting part 322 may be in contact with the force-bearing part 321, and the other end extends into the interior of the second housing 2 to transmit the force received by the force-bearing part 321 to the interior of the second housing 2. In addition, the above battery pack further includes a support part 5. Among them, at least one of the force-transmitting part 322, the pushing member 4, and the support part 5 is an elastic member. When the force-bearing part 321 of the button 32 is pressed, the elastic member deforms and has a tendency to reset the button 32.

[0054] In one or more preferred embodiments, the force transmission part 322 is an elastic member. At this time, the elastic member can be a cylindrical rubber column. The force transmission part 322 can be installed on the force bearing part 321 and is in contact with the force bearing part 321 at one end. The other end can be in contact with the support part 5 or can have a certain distance from the support part 5. At this time, the support part 5 is the position of the bracket 12 corresponding to the force transmission part 322. At this time, the force transmission part 322 is linked with the button 32, so that when the force bearing part 321 of the button 32 is pressed, the force transmission part 322 is forced to be compressed. In particular, the pushing member 4 can also be integrally formed with the button 32.

[0055] Refer to Figure 3 and Figure 4 , FIG. 4 shows a schematic diagram of the structure at the display board in another embodiment of the present application. In another preferred embodiment, the pushing member 4 is an elastic member. At this time, the support part 5 can be integrally formed with the pushing member 4. The support part 5 is located at one end of the pushing member 4 away from the pushing arm 41. The support part 5 can be connected to the second housing 2. The installation method here can be snap connection or fixed by other means such as bolts. At this time, the force bearing part 321 and the force transmission part 322 can be integrally formed or separately provided and installed together.

[0056] Refer to Figures 3 to 5 , FIG. 5 shows a schematic diagram of the structure around the display board in another embodiment of the present application. In another preferred embodiment, the support part 5 is an elastic member. At this time, the support part 5 is a part integrally formed on the second housing 2, and the support part 5 extends to one end of the force transmission part 322 away from the force bearing part 321.

[0057] In particular, in the above embodiments, at least one of the force transmission part 322, the pushing member 4, and the support part 5 is an elastic member, or any two of them can be elastic members, or all three can be elastic members. The above combination methods are also within the scope of protection of the embodiments of the present application.

[0058] Refer to Figure 5 and Figure 6, FIG. 6 shows a schematic diagram of the structure around a button in an embodiment of the present application. In one or more preferred embodiments, the above battery pack may further include a locking portion 61, an operating portion 62, a connecting plate 6, a locking hole 7, and a reset member 63. Among them, the locking portion 61 passes through the locking hole 7, and the connecting plate 6 connects the locking portion 61 and the operating portion 62, thereby transmitting the movement of the operating portion 62 to the locking portion 61. A trigger arm 621 may be provided at the bottom of the operating portion 62. The trigger arm 621 may be integrally formed on the operating portion 62 or may be mounted on the operating portion 62. A guiding portion 411 may be provided on a surface of the pushing arm 41 facing the outside of the battery pack. The guiding portion 411 may be an inclined surface or a curved surface. The reset member 63 may be connected to the connecting plate 6, or may be connected to the operating portion 62. Of course, it may also be connected to the bottom of the locking portion 61. When the operating portion 62 is pressed, the reset member 63 is deformed and has a tendency to reset the operating portion 62. At this time, the trigger arm 621 abuts against the guiding portion 411, thereby forcing the pushing arm 41 to push and trigger the power switch 131.

[0059] Combined with Figure 7 As shown in the figure, FIG. 7 shows an exploded structural schematic diagram of a power tool and a battery pack in an embodiment of the present application. The embodiment of the present application also discloses a power tool, which specifically includes a housing 8, a motor, a transmission structure, and the battery pack disclosed in any of the above embodiments. Among them, the housing 8 forms a holding portion 81 for an operator to hold and a battery connection portion 82 at one end of the holding portion 81; at least part of the motor is housed in the housing 8. The motor is connected to the transmission mechanism, and its power is transmitted to the output shaft through the transmission mechanism.

[0060] A locking hole 821 is provided on the battery connection portion 82. The locking hole 821 may be a blind hole adapted to the locking portion 61 on the battery pack. When the battery pack is connected to the battery connection portion 82, the locking portion 61 is inserted into the locking hole 821 to fix the position of the battery pack.

[0061] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered to be within the scope described in this specification.

[0062] The above-described embodiments only represent several implementation manners of the present application. Their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the patent application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several deformations and improvements can still be made, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. A battery pack, characterized in that: include: A first housing is provided with a first mounting portion; A second housing is provided with a second mounting portion; A display panel, with a limiting portion provided on the periphery and buttons and a display portion provided on the surface, wherein the limiting portion cooperates with the first mounting portion and the second mounting portion; A battery cell, at least partially housed in the first shell and / or the second shell; a bracket, supporting the battery core and at least partially accommodated in the first shell and / or the second shell; A circuit board connected to the bracket; A power switch connected to the circuit board and activated by the button; A display element is connected to the circuit board and is triggered by the power switch.

2. The battery pack according to claim 1, characterized in that: It also includes a supporting part, and the display panel also includes a pushing member, the pushing member has a pushing arm that triggers the power switch, the button includes a force-bearing part and a force-transmitting part, at least one of the force-transmitting part, the pushing member and the supporting part is an elastic member, and when the button is pressed toward the power switch, the elastic member is deformed and has a tendency to reset the button.

3. The battery pack according to claim 2, characterized in that: The force transmission part is an elastic part, the pushing part is linked with the force bearing part, and the supporting part is in contact with the force transmission part.

4. The battery pack according to claim 2, characterized in that: The pushing member is an elastic member, the supporting portion is arranged at an end of the pushing member away from the pushing arm, and the supporting portion is installed on the second shell.

5. The battery pack according to claim 2, characterized in that: The supporting portion is an elastic member, and the supporting portion is integrally formed with the second shell.

6. The battery pack according to claim 1, characterized in that: A light guide is disposed on the display panel, one end of the light guide is connected to the display portion, and the other end is located at the display element.

7. The battery pack according to claim 6, characterized in that: A plurality of display elements are provided, and a light isolation plate is provided between two adjacent display elements.

8. The battery pack according to claim 1, characterized in that: The first mounting portion and the second mounting portion are grooves, and the limiting portion is a flange matched with the grooves.

9. The battery pack according to claim 2, characterized in that: It also includes a locking part, an operating part, a connecting plate, a locking hole and a reset part, the connecting plate connects the locking part and the operating part, the locking part passes through the locking hole, the reset part abuts against the connecting plate, a trigger arm is provided at the bottom of the operating part, a guide part is provided on one side of the push arm, when the operating part is pressed, the reset part is deformed, and the trigger arm abuts against the guide part.

10. An electric tool, characterized in that: include: A housing formed with a grip portion and a battery connection portion; a motor at least partially contained in the housing; A transmission mechanism, connected to the motor and transmitting the power of the motor to the output shaft; And, a battery pack as described in any one of claims 1 to 9; The battery pack includes a locking portion, and the battery connecting portion is provided with a locking hole. When the battery pack is connected to the battery connecting portion, the locking portion is inserted into the locking hole.

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