A battery pack charging base and a charger comprising the same

Abstract

This utility model provides a battery pack charging stand and a charger including the same. The upper and lower shells of the battery pack charging stand each have a U-shaped recessed charging coupling space on their outer sides. Pairs of L-shaped holes are formed at the junction of the bottom plate and side plate of the charging coupling space, and each L-shaped hole accommodates a charging electrode plate. The charging electrodes are arranged in pairs, staggered on the upper and lower shells. Positioning mechanisms for the charging electrodes are provided on the inner surfaces of the upper and lower shells. The charging electrodes are L-shaped, including an integrally formed narrow square portion and a wide square portion. The narrow square portion extends from the L-shaped hole into the charging coupling space for inserting a battery pack. The wide square portion is limited in six directions (front / back, left / right, and up / down) by the positioning mechanism. This utility model can meet the requirements of simultaneous charging of multiple battery packs, with a robust structure and compact size.

Description

Technical Field

[0001] This utility model relates to the field of battery charging technology, and in particular to a battery pack charging stand and a charger containing the same. Background Technology

[0002] In gardening operations, handheld electric shears are powered by a DC motor supplied by a battery pack. The blades are driven by a blade transmission mechanism to perform cutting operations. They are convenient for cutting various branches, plastic pipes, rods and other non-metallic materials, and are time-saving and labor-saving.

[0003] Battery packs for handheld power tools typically use rechargeable batteries such as nickel-metal hydride and lithium-ion batteries, requiring chargers that are robust, compact, and highly efficient. However, current chargers for handheld power tool battery packs do not yet meet these requirements.

[0004] Therefore, developing a robust and compact battery pack charging stand that supports simultaneous charging of multiple battery packs, as well as a charger containing it, is a technical problem that urgently needs to be solved. Utility Model Content

[0005] Due to the aforementioned deficiencies in the existing technology, this utility model provides a battery pack charging stand and a charger containing the same, to meet the requirements of simultaneous charging of multiple battery packs, robust structure, and compact size.

[0006] To achieve the above objectives, this utility model provides a battery pack charging stand, comprising an outer shell consisting of an upper shell and a lower shell joined together; both the upper shell and the lower shell have U-shaped recessed charging coupling spaces on their outer sides; the bottom plate and side plate of the charging coupling space have paired L-shaped holes at their junction, and each L-shaped hole is fitted with a charging electrode plate; the charging electrode plates are arranged in pairs, staggered on the upper shell and the lower shell; the inner surfaces of the upper shell and the lower shell are provided with positioning mechanisms for the charging electrode plates;

[0007] The charging plate is L-shaped, including an integrally formed narrow square portion and a wide square portion; the narrow square portion extends out of the L-shaped hole to the charging coupling space for inserting a battery pack; the wide square portion is limited by the positioning mechanism in six directions: front-back, left-right, and up-down.

[0008] In some embodiments of the first aspect, a slot is provided on the long side of the wide square portion, and the positioning mechanism includes a first positioning platform and a second positioning platform protruding from the inner surfaces of the upper and lower housings; the slot engages with the first positioning platform to limit the front and rear movement of the charging electrode plate; a portion of the wide square portion adjacent to the narrow square portion also extends out of the L-shaped hole to limit the movement in the left and right directions; a portion of the short side of the wide square portion engages with the second positioning platform to limit the movement of the charging electrode plate vertically.

[0009] In some embodiments of the first aspect, the wide square portion also has a wiring hole.

[0010] In some embodiments of the first aspect, a power line hole is provided on one side of the upper and lower housings, between the upper and lower charging coupling spaces.

[0011] In some embodiments of the first aspect, the splicing surfaces of the upper and lower housings are provided with mutually cooperating positioning bosses and slots.

[0012] In some embodiments of the first aspect, the upper housing and the lower housing are fixedly connected by ultrasonic welding.

[0013] In some embodiments of the first aspect, battery pack positioning platforms are provided on both sides of the protrusion of the charging plate.

[0014] In some embodiments of the first aspect, the inner sides of the upper and lower housings are provided with circuit board fixing ribs.

[0015] In some embodiments of the first aspect, the protruding end of the charging plate is machined into a bevel.

[0016] On the other hand, this utility model provides a battery pack charger, including a battery pack charging base as described above and a power cord electrically connected to the charging plates of the battery pack charging base; the power cord supplies power to the charging plates.

[0017] Compared with the prior art, the above-mentioned utility model has the following advantages or beneficial effects:

[0018] (1) The charging base of this utility model has two charging coupling spaces, one above the other, and the charging plates are arranged in an alternating manner, which can support the simultaneous charging of at least two battery packs and has high charging efficiency.

[0019] (2) The charging plate inside the charging base of this utility model includes a narrow square part for charging tabs and a wide square part for positioning. It has a positioning mechanism that limits its position in six directions: front and back, left and right and up and down. The structure is reliable and the size is small.

[0020] (3) The battery pack charger of this utility model has a reasonable and reliable structure design, and is easy to carry and use. Attached Figure Description

[0021] The present invention, its features, shape, and advantages will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings. Like reference numerals denote like parts throughout the drawings. The drawings are not drawn to scale; the focus is on illustrating the main idea of ​​the invention.

[0022] Figure 1This is a schematic diagram of the structure of a battery pack charging stand that charges two battery packs simultaneously according to an embodiment of the present invention.

[0023] Figure 2 This is a perspective view of a battery pack charging stand according to an embodiment of the present invention;

[0024] Figure 3 This is a three-dimensional schematic diagram of a battery pack charging stand according to an embodiment of the present invention from another angle;

[0025] Figure 4 This is a three-dimensional schematic diagram of the charging plate in one embodiment of the present invention;

[0026] Figure 5 This is a perspective view of the lower shell in one embodiment of the present invention;

[0027] Figure 6 This is a three-dimensional schematic diagram of the charging electrode plate installed on the lower shell in one embodiment of the present invention;

[0028] Figure 7 This is a three-dimensional schematic diagram of a battery pack charging stand with a concealed upper shell in one embodiment of the present invention;

[0029] In the attached diagram: 100, charging base; 1, battery pack; 10, charging coupling space; 11, upper shell; 12, lower shell; 13, positioning boss; 14, slot; 2, L-shaped hole; 3, charging plate; 31, narrow square part; 32, wide square part; 321, slot; 322, wiring hole; 41, first positioning platform; 42, second positioning platform; 43, power cord hole; 44, battery pack positioning platform; 45, circuit board fixing rib; 5, power cord. Detailed Implementation

[0030] Exemplary embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. It should be understood that all described exemplary embodiments are merely some embodiments and examples of the present invention, and not all of them. Rather, these exemplary embodiments are provided so that those skilled in the art can more thoroughly understand the present disclosure and to more completely convey the technical content of the present disclosure to those skilled in the art.

[0031] In the description of this application, the terms "front," "rear," "left," "right," "up," and "down," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the present invention and do not require the present invention to be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0032] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; the method can be welding, threaded connections, or binding connections; and they can be direct connections or indirect connections through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0033] Example

[0034] See Figures 1 to 3 This embodiment provides a charging base 100 for a battery pack, including an outer shell consisting of an upper shell 11 and a lower shell 12. Both the upper shell 11 and the lower shell 12 have U-shaped recessed charging coupling spaces 10 on their outer sides. A pair of L-shaped holes 2 are formed at the junction of the bottom plate and side plate of the charging coupling space 10, and a charging electrode 3 is engaged in each L-shaped hole 2. The charging electrode 3 is arranged in pairs on the upper shell 11 and the lower shell 12 in an alternating pattern. Positioning mechanisms for the charging electrode 3 are provided on the inner surfaces of the upper shell 11 and the lower shell 12.

[0035] See Figure 4 The charging plate 3 is L-shaped and includes an integrally formed narrow square portion 31 and a wide square portion 32. The narrow square portion 31 extends out of the L-shaped hole 2 to the charging coupling space 10 for inserting the battery pack 1. The wide square portion 32 is limited by the positioning mechanism in six directions: front-back, left-right, and up-down.

[0036] The charging plate 3 of the battery pack charging socket 100 is electrically connected to the power cord 5. After the power cord 5 powers the charging plate 3, it is used as a battery pack charger.

[0037] The upper and lower housings of the charging base 100 are preferably integrally molded from rigid plastic, and the charging plates 3 are preferably phosphor bronze sheets. When installing the charging plates 3, first insert the narrow square portion 31 completely into the L-shaped hole 2 from the inside out of the housing, then rotate it 90° so that the wide square portion 32 is positioned by the positioning mechanism. After all the charging plates 3 and power cords are installed and connected, the upper and lower housings are fixedly connected to complete the charger manufacturing. As a preferred technical solution, the upper housing 11 and lower housing 12 are fixedly connected by ultrasonic welding.

[0038] See Figures 5 to 7As a preferred technical solution, the long side of the wide square portion 32 has a slot 321. The positioning mechanism includes a first positioning platform 41 and a second positioning platform 42 protruding from the inner surfaces of the upper housing 11 and the lower housing 12. The slot 321 engages with the first positioning platform 41 to limit the front and rear positioning of the charging plate 3. A portion of the wide square portion 32 adjacent to the narrow square portion 31 also extends an L-shaped hole 2 to limit the left and right positioning. A portion of the short side of the wide square portion 32 engages with the second positioning platform 42 to limit the upper and lower positioning of the charging plate 3. This structural design makes the charging plate 3 easy to install and remove, securely positioned, and less prone to loosening during battery pack insertion and removal.

[0039] As a preferred technical solution, the wide square portion 32 is also provided with a wiring hole 322.

[0040] As a preferred technical solution, a power line hole 43 is provided on one side of the upper housing 11 and the lower housing 12, between the upper and lower charging coupling spaces 10.

[0041] As a preferred technical solution, the splicing surfaces of the upper housing 11 and the lower housing 12 are provided with mutually cooperating positioning bosses 13 and slots 14, so that the connection between the upper and lower housings is firm and the positioning is accurate.

[0042] As a preferred technical solution, battery pack positioning platforms 44 are provided on both sides of the protruding part of the charging plate 3, so that the charging port of the battery pack is not easy to shake left and right after it is connected to the charging plate 3.

[0043] For chargers with control circuit boards, the inner sides of the upper housing 11 and lower housing 12 of the charging base can also be provided with circuit board fixing ribs 45.

[0044] As a preferred technical solution, the protruding end of the charging plate 3 is machined into an angled opening to facilitate the insertion of the battery pack charging port.

[0045] In summary, this utility model provides a battery pack charging stand and a charger containing the same. The upper and lower shells of the battery pack charging stand each have a U-shaped recessed charging coupling space on their outer sides. Pairs of L-shaped holes are formed at the junction of the bottom plate and side plate of the charging coupling space, and each L-shaped hole accommodates a charging electrode plate. The charging electrodes are arranged in pairs, staggered on the upper and lower shells. Positioning mechanisms for the charging electrodes are provided on the inner surfaces of the upper and lower shells. The charging electrodes are L-shaped, including an integrally formed narrow square portion and a wide square portion. The narrow square portion extends from the L-shaped hole into the charging coupling space for inserting a battery pack. The wide square portion is limited in six directions (front / back, left / right, and up / down) by the positioning mechanism. This utility model can meet the requirements of simultaneous charging of multiple battery packs, with a robust structure and compact size.

[0046] The standard parts used in this application can be purchased directly from the market, and the non-standard structural parts described in the instruction manual can also be processed directly based on existing technical common sense without any doubt.

[0047] The preferred embodiments of this utility model have been described above. It should be understood that this utility model is not limited to the specific embodiments described above. Devices and structures not described in detail should be understood as being implemented in a conventional manner in the art. Any person skilled in the art can make many possible variations and modifications to the technical solution of this utility model using the disclosed methods and techniques, or modify them into equivalent embodiments with equivalent changes, without departing from the scope of the technical solution of this utility model. This does not affect the essential content of this utility model. Therefore, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model, without departing from the content of the technical solution of this utility model, still fall within the protection scope of the technical solution of this utility model.

Claims

1. A battery pack charging stand, comprising an outer shell consisting of an upper shell (11) and a lower shell (12) joined together; characterized in that, The upper housing (11) and the lower housing (12) are provided with U-shaped recessed charging coupling spaces (10) on their outer sides; a pair of L-shaped holes (2) are opened at the junction of the bottom plate and the side plate of the charging coupling space (10), and a charging electrode plate (3) is snapped into each L-shaped hole (2); the charging electrode plates (3) are arranged in pairs on the upper housing (11) and the lower housing (12); the inner surfaces of the upper housing (11) and the lower housing (12) are provided with positioning mechanisms for the charging electrode plates (3); The charging plate (3) is L-shaped and includes an integrally formed narrow square portion (31) and a wide square portion (32); the narrow square portion (31) extends out of the L-shaped hole (2) to the charging coupling space (10) for inserting the battery pack (1); the wide square portion (32) is limited by the positioning mechanism in six directions: front and back, left and right and up and down.

2. The battery pack charging stand according to claim 1, characterized in that, The long side of the wide square portion (32) has a slot (321). The positioning mechanism includes a first positioning platform (41) and a second positioning platform (42) protruding from the inner surfaces of the upper housing (11) and the lower housing (12). The slot (321) is engaged with the first positioning platform (41) to limit the front and rear of the charging plate (3). A portion of the wide square portion (32) adjacent to the narrow square portion (31) also extends out of the L-shaped hole (2) to limit the left and right directions. A portion of the short side of the wide square portion (32) is engaged with the second positioning platform (42) to limit the upper and lower of the charging plate (3).

3. A battery pack charging stand according to claim 1 or 2, characterized in that, The wide square portion (32) is also provided with a wiring hole (322).

4. A battery pack charging stand according to claim 1 or 2, characterized in that, A power line hole (43) is provided on one side of the upper housing (11) and the lower housing (12) and between the upper and lower charging coupling spaces (10).

5. A battery pack charging stand according to claim 1 or 2, characterized in that, The splicing surfaces of the upper housing (11) and the lower housing (12) are provided with mutually cooperating positioning bosses (13) and slots (14).

6. A battery pack charging stand according to claim 1 or 2, characterized in that, The upper shell (11) and the lower shell (12) are fixedly connected by ultrasonic welding.

7. A battery pack charging stand according to claim 1 or 2, characterized in that, The charging electrode plate (3) has battery pack positioning platforms (44) on both sides of its protruding portion.

8. A battery pack charging stand according to claim 1 or 2, characterized in that, The inner sides of the upper housing (11) and the lower housing (12) are provided with circuit board fixing ribs (45).

9. A battery pack charging stand according to claim 1 or 2, characterized in that, The protruding end of the charging electrode (3) is machined into a bevel.

10. A battery pack charger, characterized in that, Includes a battery pack charging base as described in any one of claims 1 to 9 and a power line (5) electrically connected to the charging plate (3) of the battery pack charging base; the power line (5) supplies power to the charging plate (3).

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