Battery pack protective cover and power tool

Abstract

The utility model discloses a battery pack protective cover and electric tool, wherein the battery pack protective cover includes the casing and the cover body of open and close arrangement, forms the containing cavity for placing the battery pack, and one side of the cover body is rotatably installed on the casing, forms the connecting portion, and the other side is connected with the lock between the casing, the connecting portion and the lock are located on two opposite sides of the containing cavity respectively and are close to the diagonal opposite corners of the containing cavity. The utility model discloses the special position design of connecting portion and lock, makes when the cover body opens, can guarantee that the battery pack in the inside is limited by the casing, and makes nearly half of the volume of the battery pack can be exposed, has more operating space when taking the battery pack, and the convenient operation is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of power tool technology, and in particular to a battery pack protective cover and a power tool. Background Technology

[0002] Power tools are tools that use electricity as a power source and are widely used in various fields. Some existing power tools are directly connected to the mains power supply via an electrical cord, while others have a built-in power source, i.e., a battery pack, such as the Chinese utility model patent with authorization announcement number CN220023597U. Among them, power tools with battery packs are used in more scenarios, often in outdoor environments. These usage scenarios inevitably involve relatively harsh environments, such as rain and dust, so the cavity used to house the battery pack needs to be equipped with a dust cover.

[0003] A common dust cover structure is exemplified by the power tool with adjustable protective components, as described in authorization notification number CN 214430278 U. In this design, the dust cover and housing are vertically integrated, with one end hinged to one side of the housing and the other end connected to the other side of the housing via a push-button latch. The opening and closing surfaces are flat. With this type of dust cover, only one side of the battery pack is exposed when open, limiting the operating space for retrieving the battery pack and resulting in a poor user experience. Therefore, the structure of the battery pack protective cover needs optimization. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a battery pack protective cover and power tool that provides dust and water protection while allowing more of the battery pack surface to be exposed when the dust cover is opened, making it easier to remove the battery pack.

[0005] The technical solution to achieve the purpose of this utility model is:

[0006] A battery pack protective cover includes a housing and a cover body that are openable and closable, forming a cavity for placing a battery pack. One side of the cover body is rotatably mounted on the housing to form a connecting part, and the other side is connected to the housing with a lock. The connecting part and the lock body are respectively located on two opposite sides of the cavity and near the diagonal corner of the cavity.

[0007] Furthermore, the opening and closing surfaces of the shell and the cover include a first plane and a second plane with an arc transition and an obtuse angle, wherein the side of the first plane away from the second plane is higher than the other side.

[0008] Furthermore, a third plane extending upward at the top of the second plane is provided.

[0009] Furthermore, the area where the shell overlaps with the outer periphery of the opening and closing surface is provided with equally spaced circumferential grooves, and the area where the cover overlaps with the outer periphery of the opening and closing surface is provided with circumferential protrusions. The circumferential protrusions are adapted to the circumferential grooves, and when the cover is closed, the circumferential protrusions are engaged in the circumferential grooves.

[0010] Furthermore, the cover is integrally formed with symmetrical first connecting sleeves, and the shell is provided with a second connecting sleeve coaxially located between the two first connecting sleeves. The second connecting sleeve is an elastic plastic part with notches extending axially to both ends on its outer periphery. A pin is provided through the first connecting sleeve and the second connecting sleeve to form the connecting part. The natural width of the notch is smaller than the outer diameter of the pin, and the maximum width when subjected to external force is greater than the width of the pin.

[0011] Furthermore, the housing has an outwardly protruding part near the connecting part, the second connecting sleeve is sleeved on the top of the protrusion, the top of the protrusion has an inclined surface that communicates with the notch, and both ends have recesses corresponding to the first connecting sleeve.

[0012] Furthermore, the lock includes a latch groove and a latch body respectively provided on the cover and the housing. The latch body is rotatably provided with a handle, and the handle is rotatably provided with a latch ring. The handle is adapted to lock the latch ring by rotating clockwise when the latch ring is fastened in the latch groove.

[0013] A power tool includes a battery pack cover as described in any of the preceding claims, the housing comprising a symmetrical two-half structure and secured with screws.

[0014] By adopting the above technical solution, this utility model has the following beneficial effects:

[0015] (1) By setting the connecting part and the lock for connecting the housing and the cover respectively on two opposite sides of the receiving cavity, and close to the diagonal, when the cover is opened, it can ensure that the battery pack inside is limited by the housing, and also allow nearly half of the volume of the battery pack to be exposed, providing more operating space when taking out the battery pack and making it convenient to operate.

[0016] (2) The opening and closing surface of this utility model consists of two planes set at an angle to form an L-shaped opening and closing surface. Compared with the opening and closing surface formed directly by a plane set at an inclination, more battery packs can be exposed. In addition, as the first plane near the bottom of the receiving cavity, the side located on the outside is higher than the other side, which can better surround the battery pack and expose more battery packs at the same height.

[0017] (3) By setting a third inclined surface, the present invention creates a certain distance between the connecting part and the top of the receiving cavity. When the cover is opened, the top of the battery pack can be fully exposed, making it more convenient to take out.

[0018] (4) By setting mutually cooperating circumferential protrusions and circumferential grooves, the lid and the shell are stacked on the outer periphery of the opening and closing surface when the lid is closed, which not only improves the assembly stability of the lid and the shell, but also provides better dustproof and waterproof effects.

[0019] (5) This utility model adopts a connecting sleeve and pin structure to realize the rotational connection between the shell and the cover. The structure is simple. At the same time, a notch is provided on the second connecting sleeve to facilitate the separation and assembly of the cover and the shell.

[0020] (6) This utility model uses a notch as a positioning feature for the first connecting sleeve, which facilitates assembly. It also uses a slope as a guide surface for the pin to enter and exit, which makes it easier for the pin to be inserted into the second connecting sleeve.

[0021] (7) The present invention adopts a lock structure composed of a buckle and a handle, which ensures that the lock is secure and is not prone to fatigue damage, and has a longer service life. Attached Figure Description

[0022] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings, wherein:

[0023] Figure 1 This is a schematic diagram of the structure of the power tool of this utility model;

[0024] Figure 2 This is a schematic diagram of the electric tool of this utility model from another angle;

[0025] Figure 3 This is a schematic diagram of the shell structure of the protective cover of this utility model;

[0026] Figure 4 This is a schematic diagram of the cover structure of the protective cover of this utility model.

[0027] The labels in the attached diagram are:

[0028] 1. Housing, 1-1. Second connecting sleeve, 1-2. Protrusion, 1-3. Inclined surface, 1-4. Notch, 1-5. Buckle, 2. Cover, 2-1. First connecting sleeve, 2-2. Buckle groove, 3. Pin, 4. Handle, 5. Buckle ring, 6. First plane, 7. Second plane, 8. Third plane, 9. Circumferential groove, 10. Circumferential ridge, 11. Magnetic post. Detailed Implementation

[0029] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0030] (Example 1)

[0031] like Figures 1 to 4 The power tool shown is an electric roller brush used for cleaning floors, etc. It includes a power supply end, a connecting rod, and a roller brush end arranged sequentially. The power supply end uses a battery pack as a power source, which is electrically connected to the actuator of the roller brush end via a wiring harness inside the connecting rod to drive its operation. The power supply end has a battery pack protective cover consisting of a shell 1 and a cover 2 that can be opened and closed. The shell 1 has a symmetrical two-half structure and is locked with screws, forming a cavity at the top for holding the battery pack. The left side of the cover 2 is rotatably mounted on the shell 1, forming a connecting part, and the right side is connected to the shell 1 with a lock. The connecting part and the lock are located on two opposite sides of the cavity, near the diagonal corners of the cavity. This design ensures that when the cover 2 is opened, the battery pack is both contained by the shell 1 and nearly half of its volume is exposed, providing more operating space and facilitating operation when retrieving the battery pack.

[0032] Specifically, the cover 2 is integrally formed with symmetrical first connecting sleeves 2-1, and the shell 1 is provided with a second connecting sleeve 1-1 coaxially located between the two first connecting sleeves 2-1. The second connecting sleeve 1-1 is an elastic plastic part with notches extending axially to both ends on its outer periphery. A pin 3 passes through the first connecting sleeve 2-1 and the second connecting sleeve 1-1 to form a connection part. The natural width of the notch is smaller than the outer diameter of the pin 3, and the maximum width when subjected to external force is greater than the width of the pin 3. During assembly, the pin 3 is first installed on the first connecting sleeve 2-1, and then it is forcefully inserted into the second connecting sleeve 1-1 through the notch, achieving quick installation.

[0033] The housing 1 has an outwardly protruding protrusion 1-2 near the connecting part. The second connecting sleeve 1-1 is located on the top of the protrusion 1-2. The top of the protrusion 1-2 has a sloping surface 1-3 with a connecting notch. Both ends have recesses 1-4 corresponding to the first connecting sleeve 2-1. The recesses 1-4 are used to position the first connecting sleeve 2-1, which facilitates assembly. The sloping surface 1-3 is used as a guide surface for the pin 3 to enter and exit, which makes it easier for the pin 3 to be inserted into the second connecting sleeve 1-1.

[0034] The lock includes a latch groove 2-2 and a latch body 1-5, which are integrally formed with the cover body 2 and the housing 1, respectively. A handle 4 is rotatably provided on the latch body 1-5, and a latch ring 5 is rotatably provided on the handle 4. When the latch ring 5 is fastened in the latch groove 2-2, the latch ring is locked by rotating the handle clockwise. The lock is not only simple in structure and reliable in locking, but also not prone to fatigue damage and has a longer service life.

[0035] To achieve a larger exposed battery pack volume, the opening and closing surfaces of the housing 1 and cover 2 in this embodiment are formed by a first plane 6 and a second plane 7 with an obtuse angle, creating an L-shaped opening and closing surface. Compared to an opening and closing surface formed directly by an inclined plane, this allows more of the battery pack to be exposed. The right side of the first plane 6 is higher than the left side, meaning the outer side is higher than the other, which better surrounds the battery pack, allowing more of the battery pack to be exposed at the same height. The top of the second plane 7 also has a third plane 8 extending upwards at an incline, creating a certain distance between the connecting part and the top of the receiving cavity. When the cover 2 is opened, the top of the battery pack can be fully exposed, further facilitating retrieval.

[0036] Considering the large size of the entire opening and closing surface, in order to ensure that the relative positions of the cover 2 and the shell 1 are not misaligned after the cover is closed, this embodiment provides circumferential grooves 9 with equal spacing in the area where the shell 1 overlaps with the outer periphery of the opening and closing surface, and circumferential protrusions 10 in the area where the cover 2 overlaps with the outer periphery of the opening and closing surface. The circumferential protrusions 10 are adapted to the circumferential grooves 9. When the cover 2 is closed, the circumferential protrusions 10 are just inserted into the circumferential grooves 9, so that the cover 2 and the shell 1 are stacked vertically on the outer periphery of the opening and closing surface, which not only improves the assembly stability of the cover 2 and the shell 1, but also provides better dustproof and waterproof effects.

[0037] In addition, a magnetic column 11 is fixedly embedded on the opening and closing surface of the cover 2 near the lock. Correspondingly, a Hall sensor that senses the signal of the magnetic column 11 is provided in the housing 1. The Hall sensor can control the power supply of the power tool to be turned on and off. When the cover 2 is closed, the magnetic column senses the Hall sensor in the housing 1, and the machine can be started by its own switch. Conversely, when the cover 2 is open, even if the switch is turned on, the machine cannot be started, thus improving the safety of use.

[0038] This utility model arranges the connecting part and the lock for connecting the housing 1 and the cover 2 on two opposite sides of the receiving cavity, close to the diagonal, so that when the cover is opened, the internal battery pack is not only limited by the housing 1, but also nearly half of the battery pack volume can be exposed, providing more operating space and facilitating operation when taking out the battery pack.

[0039] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above descriptions are merely specific embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A battery pack protective cover, characterized in that: The device includes a housing and a cover that can be opened and closed, forming a cavity for holding a battery pack. One side of the cover is rotatably mounted on the housing to form a connecting part, and the other side is connected to the housing with a lock. The connecting part and the lock are respectively located on two opposite sides of the cavity and near the diagonal corner of the cavity.

2. The battery pack protective cover according to claim 1, characterized in that: The opening and closing surfaces of the shell and the cover include a first plane and a second plane with an arc transition and an obtuse angle, wherein the side of the first plane away from the second plane is higher than the other side.

3. A battery pack protective cover according to claim 2, characterized in that: The top of the second plane has a third plane that extends upward at an angle.

4. A battery pack protective cover according to any one of claims 1 to 3, characterized in that: The area where the shell overlaps with the outer periphery of the opening and closing surface is provided with equally spaced circumferential grooves, and the area where the cover overlaps with the outer periphery of the opening and closing surface is provided with circumferential protrusions. The circumferential protrusions are adapted to the circumferential grooves, and when the cover is closed, the circumferential protrusions are engaged in the circumferential grooves.

5. A battery pack protective cover according to claim 1, characterized in that: The cover is integrally formed with symmetrical first connecting sleeves, and the shell is provided with a second connecting sleeve coaxially located between the two first connecting sleeves. The second connecting sleeve is an elastic plastic part with a notch extending axially to both ends on its outer periphery. A pin is provided through the first connecting sleeve and the second connecting sleeve to form the connecting part. The natural width of the notch is smaller than the outer diameter of the pin, and the maximum width when subjected to external force is greater than the width of the pin.

6. A battery pack protective cover according to claim 5, characterized in that: The housing has an outwardly protruding part near the connecting part, the second connecting sleeve is sleeved on the top of the protruding part, the top of the protruding part has an inclined surface that connects to the notch, and both ends have recesses corresponding to the first connecting sleeve.

7. A battery pack protective cover according to claim 1, characterized in that: The lock includes a latch groove and a latch body respectively provided on the cover and the housing. The latch body is rotatably provided with a handle, and the handle is rotatably provided with a latch ring. The handle is adapted to lock the latch ring by rotating clockwise when the latch ring is fastened in the latch groove.

8. A power tool, characterized in that: Includes the battery pack protective cover as described in any one of claims 1 to 7, wherein the housing comprises a symmetrical two-half structure and is locked with screws.

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