Electric tool battery pack charging seat

Abstract

The utility model relates to the technical field of battery pack charging seats, in particular to an electric tool battery pack charging seat which comprises a shell assembly, a charging assembly, a limiting assembly and a protection assembly, the shell assembly comprises a charging seat lower shell, and two first mounting plates are fixedly connected to the bottom of the inner side of the charging seat lower shell; according to the utility model, through the arrangement of the limiting seat, the limiting protruding shell and the protection seat, the device can protect the conductive insertion piece group through the protection seat which can move back and forth, thereby preventing the conductive insertion piece group from being damaged due to collision. And meanwhile, mistaken touch or electric leakage caused by the fact that the conductive insertion piece set is exposed outside after the device is powered on is prevented, the device can limit the electric tool through the limiting base and the limiting protruding shell, the base insertion port of the electric tool can be stably connected with the conductive insertion piece set in an inserted mode, the charging effect is ensured, and the device has higher safety and working stability.

Description

Technical Field

[0001] This utility model relates to the field of battery pack charging base technology, specifically a power tool battery pack charging base. Background Technology

[0002] Handheld power tools are typically equipped with rechargeable battery packs for power supply. The power tool battery pack charging socket is a device used to charge the power tool battery pack. It uses a slot with conductive inserts on the top to connect to the battery pack. The end of the conductive inserts away from the slot is electrically connected to the circuit board through a set of wires, thereby realizing the charging function of the battery pack.

[0003] Some existing power tool battery pack charging bases have a relatively simple structure. The conductive pin group fixed to one side of the slot is directly exposed on the upper side of the battery pack charging base. The conductive pin group lacks a protective mechanism. When the user carries the battery pack charging base out, the conductive pin group may collide with other objects and be damaged. When the battery pack charging base is plugged in, there is a risk of accidental contact and leakage of the exposed conductive pin group when the power tool is not charging. Therefore, a power tool battery pack charging base is proposed to address the above problems. Utility Model Content

[0004] The purpose of this utility model is to provide a power tool battery pack charging base to solve the problem that in some existing power tool battery pack charging bases, the conductive insert group fixed on one side of the slot is directly exposed on the upper side of the battery pack charging base, and the conductive insert group lacks a protection mechanism.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A power tool battery pack charging base includes a housing assembly, a charging assembly, a limiting assembly, and a protective assembly. The housing assembly includes a lower charging housing, with two first mounting plates fixedly connected to the inner bottom of the lower charging housing. An upper charging housing is bolted to the upper side of the lower charging housing. A limiting seat is fixedly connected to the upper groove of the upper charging housing. The housing assembly has a limiting assembly inside, which includes two first mounting blocks fixedly connected to the inner bottom surface of the lower charging housing. A first sliding shaft is fixedly connected to the upper side of each first mounting block. The outer side of the first sliding shaft is slidably connected to a limiting protrusion shell. A first compression spring is sleeved on the outer side of each first sliding shaft. A protective component is provided inside the outer shell assembly. The protective component includes a second mounting plate fixedly connected to the inner rear end of the upper shell of the charging base. Two second mounting blocks are provided in front of the second mounting plate. A second sliding shaft fixedly connected to the second mounting plate is fixedly connected to the rear side of each second mounting block. A sliding plate is slidably connected to the outer side of the second sliding shaft. A protective seat slidably connected to the limiting seat is fixedly connected to the front side of the sliding plate. A second compression spring is sleeved on the outer side of each second sliding shaft.

[0007] Preferably, the housing assembly has a charging component inside, the charging component including a circuit board bolted to the first mounting plate, and a conductive insert group is mounted on the upper side of the circuit board.

[0008] Preferably, the conductive insert group is electrically connected to the circuit board, the conductive insert group passes through the rear opening of the upper groove of the upper housing of the charging base, and the conductive insert group passes through the through slot of the sliding plate and the protective base.

[0009] Preferably, the limiting protrusion shell passes through the lower opening of the groove on the upper side of the upper housing of the charging base and the opening slot of the limiting seat, the lower end of the first compression spring is fixedly connected to the first mounting block, and the upper end of the first compression spring is fixedly connected to the limiting protrusion shell.

[0010] Preferably, the rear ends of the second compression springs are all fixedly connected to the second mounting plate, and the front ends of the second compression springs are all fixedly connected to the sliding plate. The sliding plate and the protective seat are both provided with a set of through slots in the front-to-back direction.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] In this invention, by setting a limiting seat, a limiting protrusion shell, and a protective seat, the device can protect the conductive plug group through the protective seat, which can move back and forth, to prevent the conductive plug group from being damaged by collision. At the same time, it prevents the conductive plug group from being exposed after the device is powered on, which could cause accidental contact or leakage. The device can limit the power tool through the limiting seat and the limiting protrusion shell, so that the base plug interface of the power tool can be stably plugged into the conductive plug group, ensuring the charging effect. The device has higher safety and working stability. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a cross-sectional view of the overall structure of this utility model;

[0015] Figure 3 This is a cross-sectional view of the installation structure of the limiting component of this utility model;

[0016] Figure 4 This is a cross-sectional view of the installation structure of the protective component of this utility model;

[0017] Figure 5 This is a cross-sectional view of the outer shell assembly structure of this utility model;

[0018] Figure 6 This is a schematic diagram of the charging component structure of this utility model;

[0019] Figure 7 This is a cross-sectional view of the limiting component structure of this utility model;

[0020] Figure 8 This is a cross-sectional view of the protective component structure of this utility model.

[0021] In the figure: 1. Outer shell assembly; 11. Lower shell of charging base; 12. First mounting plate; 13. Upper shell of charging base; 14. Limiting seat; 2. Charging component; 21. Circuit board; 22. Conductive insert group; 3. Limiting component; 31. First mounting block; 32. First sliding shaft; 33. Limiting protrusion shell; 34. First compression spring; 4. Protective component; 41. Second mounting plate; 42. Second mounting block; 43. Second sliding shaft; 44. Sliding plate; 45. Protective seat; 46. Second compression spring. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] In the description of this utility model, it should be understood that the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours of each component itself.

[0024] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.

[0025] Please see Figure 1-8 This utility model provides a technical solution:

[0026] A power tool battery pack charging base includes a housing assembly 1, a charging assembly 2, a limiting assembly 3, and a protective assembly 4. The housing assembly 1 includes a lower housing 11, with two first mounting plates 12 fixedly connected to the inner bottom of the lower housing 11. An upper housing 13 is bolted to the upper side of the lower housing 11, and a limiting seat 14 is fixedly connected to the upper groove of the upper housing 13. The limiting assembly 3 is provided inside the housing assembly 1. The limiting assembly 3 includes two first mounting blocks 31 fixedly connected to the inner bottom surface of the lower housing 11. A first sliding shaft 32 is fixedly connected to the upper side of each first mounting block 31. The sliding connection has a limiting protrusion shell 33. The outer side of the first sliding shaft 32 is fitted with a first compression spring 34. The outer shell assembly 1 has a protective assembly 4 inside. The protective assembly 4 includes a second mounting plate 41 that is fixedly connected to the inner rear end of the upper shell 13 of the charging base. The front of the second mounting plate 41 is provided with two second mounting blocks 42. The rear side of the second mounting blocks 42 is fixedly connected with a second sliding shaft 43 that is fixedly connected to the second mounting plate 41. The outer side of the second sliding shaft 43 is slidably connected with a sliding plate 44. The front side of the sliding plate 44 is fixedly connected with a protective seat 45 that is slidably connected to the limiting seat 14. The outer side of the second sliding shaft 43 is fitted with a second compression spring 46.

[0027] The housing assembly 1 houses a charging assembly 2, which includes a circuit board 21 bolted to the first mounting plate 12. A conductive insert group 22 is mounted on the upper side of the circuit board 21. The conductive insert group 22 allows the power tool to be electrically connected to the circuit board 21 for charging. The conductive insert group 22 is electrically connected to the circuit board 21 and passes through the rear opening of the upper groove of the charging base housing 13. The conductive insert group 22 also passes through a through slot between the sliding plate 44 and the protective seat 45, which protects the conductive insert group 22. A limiting protrusion 33 passes through the lower opening of the upper groove of the charging base housing 13 and... The opening slot of the limiting seat 14 and the lower end of the first compression spring 34 are fixedly connected to the first mounting block 31, and the upper end of the first compression spring 34 are fixedly connected to the limiting protrusion shell 33. The power tool is limited by the limiting seat 14 and the limiting protrusion shell 33. The rear end of the second compression spring 46 is fixedly connected to the second mounting plate 41, and the front end of the second compression spring 46 is fixedly connected to the sliding plate 44. The sliding plate 44 and the protective seat 45 are both provided with a set of through slots in the front and rear directions. The protective seat 45 can prevent the conductive plug group 22 from being damaged by collision, and at the same time prevent the conductive plug group 22 from being exposed after the device is powered on, causing accidental contact or leakage.

[0028] Workflow: The device is equipped with a plug electrically connected to the circuit board 21. Before use, the device is placed in a suitable position and connected to AC power via the plug. The circuit board 21 of the device contains the electrical components required for charging; all of the above are existing technologies. When using the device, the operator can pick up the device with one hand and hold a power tool with the other, placing the power tool on the upper side of the first mounting block 31. By pressing down on the limiting protrusion 33 with the base of the power tool, the limiting protrusion 33 moves downward along the first sliding shaft 32 fixed by the first mounting block 31, compressing the first compression spring 34. When the limiting protrusion 33 is completely retracted into the upper housing 13 of the charging base, the base of the power tool contacts the limiting seat 14. When the operator moves the power tool from front to back relative to the device, the base of the power tool is limited by the limiting seat 14. The base of the power tool pushes the protective seat 45 and the sliding plate 44 backward, causing the sliding plate 44 to slide backward along the second sliding shaft 43 fixed by the second mounting plate 41 and the second mounting block 42, thus compressing the second compression spring 46. This exposes the front half of the conductive insert group 22 in the through slot of the second compression spring 46, allowing the conductive insert group 22 to be inserted into the base socket of the power tool. When the protective seat 45 is fully retracted into the upper housing 13 of the charging base, the conductive insert group 22 and the base socket of the power tool are connected, and the base of the power tool moves to the limiting position. Behind the protruding shell 33, the base of the power tool no longer presses against the upper side of the limiting protruding shell 33. The limiting protruding shell 33 can be reset by the elastic force of the first compression spring 34. The protruding limiting protruding shell 33 can then limit the power tool. At this time, the operator can release the device and the power tool. The power tool cannot move forward relative to the limiting seat 14. The circuit board 21 can be fixed by the first mounting plate 12 located in the lower housing 11 of the charging base. The circuit board 21, together with the electrical components on it, can charge the power tool that is stably connected to the conductive plug group 22. After charging is completed, the operator only needs to press down on the limiting protruding shell 33 to slide the base of the power tool out of the limiting seat 14. At this time, the sliding plate 44 can be held at the foremost position within its movable range by the elastic force of the second compression spring 46. The sliding plate 44 can drive the protective seat 45 to reset, and the protective seat 45 can protect the conductive plug group 22. The device can protect the conductive plug group 22 by the protective seat 45, which can move back and forth, to prevent the conductive plug group 22 from being damaged by collision. At the same time, it can prevent the conductive plug group 22 from being exposed after the device is powered on, which may cause accidental contact or leakage. The device can limit the power tool by the limiting seat 14 and the limiting protrusion shell 33, so that the base plug interface of the power tool can be stably plugged into the conductive plug group 22 to ensure the charging effect. The device has higher safety and working stability.

[0029] Contents not described in detail in this specification are existing technologies known to those skilled in the art. Standard parts used in this invention can all be purchased commercially, and irregularly shaped parts can be custom-made according to the description and drawings. The specific connection methods for each part all employ conventional methods such as bolts, rivets, and welding, which are already mature technologies. The machinery, parts, and equipment all use conventional models from the prior art, and the circuit connections also employ conventional connection methods from the prior art, which will not be detailed here.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A power tool battery pack charging base, comprising a housing assembly (1), a charging assembly (2), a limiting assembly (3), and a protective assembly (4), characterized in that: The outer casing assembly (1) includes a lower charging housing (11), with two first mounting plates (12) fixedly connected to the inner bottom of the lower charging housing (11). An upper charging housing (13) is bolted to the upper side of the lower charging housing (11), and a limiting seat (14) is fixedly connected to the upper groove of the upper charging housing (13). A limiting assembly (3) is provided inside the outer casing assembly (1). The limiting assembly (3) includes two first mounting blocks (31) fixedly connected to the inner bottom surface of the lower charging housing (11). A first sliding shaft (32) is fixedly connected to the upper side of each of the first mounting blocks (31). A limiting protrusion shell (33) is slidably connected to the outer side of each first sliding shaft (32). The outer side of the 32) is fitted with a first compression spring (34). The inner side of the outer shell assembly (1) is provided with a protective assembly (4). The protective assembly (4) includes a second mounting plate (41) fixedly connected to the inner rear end of the upper shell (13) of the charging base. The front of the second mounting plate (41) is provided with two second mounting blocks (42). The rear side of the second mounting blocks (42) is fixedly connected with a second sliding shaft (43) fixedly connected to the second mounting plate (41). The outer side of the second sliding shaft (43) is slidably connected with a sliding plate (44). The front side of the sliding plate (44) is fixedly connected with a protective seat (45) slidably connected to the limiting seat (14). The outer side of the second sliding shaft (43) is fitted with a second compression spring (46).

2. The power tool battery pack charging base according to claim 1, characterized in that: The housing assembly (1) has a charging assembly (2) inside. The charging assembly (2) includes a circuit board (21) bolted to the first mounting plate (12). A conductive insert group (22) is mounted on the upper side of the circuit board (21).

3. A power tool battery pack charging base according to claim 2, characterized in that: The conductive insert group (22) and the circuit board (21) are electrically connected. The conductive insert group (22) passes through the rear opening of the upper groove of the upper housing (13) of the charging base. The conductive insert group (22) passes through the through slot of the sliding plate (44) and the protective seat (45).

4. A power tool battery pack charging base according to claim 1, characterized in that: The limiting protrusion shell (33) passes through the lower opening of the upper groove of the upper housing (13) of the charging base and the opening slot of the limiting seat (14). The lower end of the first compression spring (34) is fixedly connected to the first mounting block (31), and the upper end of the first compression spring (34) is fixedly connected to the limiting protrusion shell (33).

5. A power tool battery pack charging base according to claim 1, characterized in that: The rear end of the second compression spring (46) is fixedly connected to the second mounting plate (41), and the front end of the second compression spring (46) is fixedly connected to the sliding plate (44). The sliding plate (44) and the protective seat (45) are both provided with a set of through slots in the front and rear directions.

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