Charger and charging combination

Abstract

The utility model relates to a charging device, and discloses a charger and a charging combination, the charger comprises a charger housing, the charger housing is a cavity with an opening, and the charger housing is provided with at least one connecting unit connected with a battery pack; the inner wall of the charger housing is also provided with at least one group of guiding units used for guiding the battery pack, and the guiding direction of the guiding units is consistent with the connecting direction of the connecting units. The charger designed by the utility model is simple to operate, and can be suitable for charging small battery packs and large battery packs with different specifications. The charger designed by the utility model can perform multi-group charging.

Description

Technical Field

[0001] The utility model relates to a charging device, in particular to a charger and a charging combination. Background Art

[0002] At present, electric tools on the market are used more and more widely, and the frequency of use of lithium battery packs used with tools is also increasing, and the demand for rapid charging of lithium battery packs has also increased accordingly. A garden cutter is a device specifically used for garden maintenance and pruning work. It is usually used to cut trees, shrubs and other vegetation. With the development of technology, garden cutters have also undergone a transformation from traditional gasoline drive to electric drive. Electric garden cutters have the advantages of simple operation, low noise and low maintenance cost, and are increasingly favored by the market.

[0003] As in the prior art CN201821628243.X, it discloses a charger for a garden tool battery pack with energy charging and heat prevention, including an upper shell seat and a lower shell seat, which are mutually spliced and connected; the upper shell seat includes a side frame and a top resting piece, the head end of the top resting piece is provided with a charging head through hole, and the tail end is provided with a through pipe hole; a upper conduit is downwardly extended from the through pipe hole, a lower conduit is upwardly extended from a through hole of the lower seat, and the lower conduit and the upper conduit are mutually inserted or spliced, and a plurality of feet are further provided at the bottom of the bottom frame piece of the lower shell seat; it cannot be adapted to different chargers. Summary of the Invention

[0004] Aiming at the problems that the charger in the prior art is complex in operation and cannot be adapted to different chargers, the utility model provides a charger and a charging combination.

[0005] In order to solve the above technical problems, the utility model is solved by the following technical solutions:

[0006] A charger includes a charger housing, the charger housing is an open cavity, and at least one connection unit for connecting with a battery pack is provided on the charger housing; at least one set of guiding units for guiding the battery pack is further provided on the inner wall of the charger housing, and the guiding direction of the guiding unit is the same as the connecting direction of the connection unit.

[0007] Preferably, a cooling air duct is provided at the bottom of the charger housing, and the cooling air duct includes at least one air inlet and an air outlet.

[0008] Preferably, a charging circuit board and an electric fan are provided inside the charger housing, the charging circuit boards are oppositely arranged, and there is a ventilation channel in the middle; the electric fan is located at the end of the charging circuit board for dissipating heat from the charger.

[0009] Preferably, the charger housing includes a first housing, a second housing, and a third housing. The second housing covers the first housing and is connected to the third housing. The second housing includes a first charging wall, a second charging wall, and a charging base. The first charging wall and the second charging wall are arranged in parallel and perpendicular to the charging base. The guiding unit is located on the first charging wall and the second charging wall, and the connecting unit is located on the charging base.

[0010] Preferably, the cooling air duct includes a first air outlet in the first direction of the first housing, a second air inlet perpendicular to the first direction, and a second air outlet, and the second air inlet and the second air outlet are arranged parallel and opposite to each other.

[0011] Preferably, the charger housing includes a first housing and a second housing, and the second housing covers the first housing. The second housing includes a first charging wall, a second charging wall, and a third charging wall. The first charging wall and the second charging wall are parallel to each other, the third charging wall is located between the first charging wall and the second charging wall, and is perpendicular to the first charging wall and the second charging wall. The connecting unit is located on the third charging wall, and the guiding unit is located on the second charging wall and the first charging wall.

[0012] Preferably, the cooling air duct includes a first air inlet and a first air outlet in the first direction of the first housing, and the first air inlet and the first air outlet are arranged parallel and opposite to each other.

[0013] A third air inlet located on the second housing and a third air outlet located on the third housing, and there is a ventilation channel when the third air outlet is in contact with the wall.

[0014] Preferably, the guiding unit includes a first guiding unit and a second guiding unit. The first guiding unit and the second guiding unit are arranged in parallel. The first guiding unit is a guiding column, and the second guiding unit is a guiding groove.

[0015] To solve the above technical problems, the present application also provides a charging combination, including a battery pack, characterized in that it further includes the charger described above, and the battery pack is connected to the charger.

[0016] Due to the above technical solutions adopted by the charger of the present utility model, the operation is simple, and it can be used to charge battery packs of different specifications, such as small battery packs and large battery packs.

[0017] The charger designed by the present utility model can perform multiple groups of charging. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 Structural diagram of Embodiment 1 of the present utility model;

[0019] Figure 2 Structural diagram of Embodiment 2 of the present utility model;

[0020] Figure 3It is the bottom view of the charger in Embodiment 2 of the present utility model;

[0021] Figure 4 It is the structural diagram of Embodiment 1 of the present utility model;

[0022] Figure 5 It is the internal structural diagram of the housing in Embodiment 2 of the present utility model;

[0023] Figure 6 It is the internal structural diagram of the housing in Embodiment 1 of the present utility model;

[0024] Figure 7 It is the structural diagram of the charging combination in Embodiment 5 of the present utility model;

[0025] Figure 8 It is the structural diagram of the charging combination in Embodiment 6 of the present utility model;

[0026] Figure 9 It is the structural diagram of the charging combination in Embodiment 7 of the present utility model;

[0027] Figure 10 It is the structural diagram of the charging combination in Embodiment 8 of the present utility model;

[0028] Figure 11 It is the flowchart of Embodiment 9 of the present utility model.

[0029] Among them, 1 - the first housing, 2 - the second housing, 3 - the third housing, 4 - the battery pack, 5 - the fan, 6 - the charging circuit board, 21 - the first charging wall, 22 - the second charging wall, 23 - the third charging wall, 24 - the connection unit, 25 - the guiding unit, 26 - the display unit, 27 - the operation unit, 28 - the charging base, 261 - the first display unit, 262 - the second display unit, 263 - the status indicating unit, 251 - the first guiding unit, 252 - the second guiding unit, 11 - the first air inlet, 12 - the first air outlet, 13 - the second air inlet, 14 - the second air outlet, 15 - the third air inlet, 16 - the third air outlet, 17 - the hanging hole, 29 - the protection unit, 41 - the battery pack heat dissipation unit. Detailed implementation manners

[0030] The present utility model will be further described in detail below in conjunction with the drawings and embodiments.

[0031] Embodiment 1

[0032] A charger includes a charger housing, Figure 1 The charger housing is an open cavity, and at least one connection unit 24 connected to the battery pack 4 is provided on the charger housing; at least one group of guiding units 25 for guiding the battery pack 4 is further provided on the inner wall of the charger housing, and the guiding direction of the guiding unit 25 is consistent with the connection direction of the connection unit 24.

[0033] The bottom of the charger housing is provided with a cooling air duct, and the cooling air duct includes at least one air inlet and an air outlet.

[0034] Inside the charger housing, there are a charging circuit board 6 and an electric fan 5. The charging circuit boards 6 are arranged opposite to each other, and there is a ventilation channel between them; the electric fan 5 is located at the end of the charging circuit board 6 for dissipating heat from the charger.

[0035] The charger housing includes a first housing 1, a second housing 2, and a third housing 3. The second housing 2 is covered on the first housing 1 and is connected to the third housing 3; the second housing 2 includes a first charging wall 21, a second charging wall 22, and a charging base 28. The first charging wall 21 and the second charging wall 22 are arranged parallel to each other and are perpendicular to the charging base 28; the guiding unit 25 is located on the first charging wall 21 and the second charging wall 22, and the connecting unit 24 is located on the charging base 28.

[0036] The cooling air duct includes a first air outlet 12 in the first direction of the first housing 1, a second air inlet 13 perpendicular to the first direction, and a second air outlet 14, and the second air inlet 13 and the second air outlet 14 are arranged opposite and parallel to each other.

[0037] Each guiding unit 25 includes a first guiding unit 251 and a second guiding unit 252, and both the first guiding unit 251 and the second guiding unit 252 are guiding columns. The sizes and lengths of the guiding columns of the first guiding unit 251 and the second guiding unit 252 are not equal.

[0038] Embodiment 2

[0039] Based on Embodiment 1, Figure 2 The difference from Embodiment 1 is that the charger housing includes a first housing 1 and a second housing 2, and the second housing 2 is covered on the first housing 1; the second housing 2 includes a first charging wall 21, a second charging wall 22, and a third charging wall 23. The first charging wall 21 and the second charging wall 22 are parallel to each other, the third charging wall 23 is located between the first charging wall 21 and the second charging wall 22, and is perpendicular to the first charging wall 21 and the second charging wall 22; the connecting unit 24 is located on the third charging wall 23, and the guiding unit 25 is located on the second charging wall 22 and the first charging wall 21.

[0040] The cooling air duct includes a first air inlet 11 and a first air outlet 12 in the first direction of the first housing 1, and the first air inlet 11 and the first air outlet are arranged opposite and parallel to each other; a third air inlet 15 on the second housing 2 and a third air outlet 16 on the third housing 3. When the third air outlet 16 is in contact with the wall, there is a ventilation channel.

[0041] The guiding unit 25 includes a first guiding unit 251 and a second guiding unit 252. The first guiding unit 251 and the second guiding unit 252 are arranged in parallel. The first guiding unit 251 is a guiding column, and the second guiding unit 252 is a guiding groove.

[0042] Embodiment 3

[0043] Based on Embodiment 2, a display unit 26 and an operation unit 27 are further provided on the second housing 2 in this embodiment. The operation unit 27 is used to control the operation of fast charging or slow charging. The display unit 26 includes a first display unit 261, a second display unit 262, and a status indication unit 263. The first display unit 261 and the second display unit 262 are used for displaying charging operations, and the status indication unit 263 is used for displaying charging status. Through the settings of the display unit 26 and the operation unit 27, the operation is simple and intuitive when in use.

[0044] Figure 3 Two hanging holes 17 are further provided on the outer side of the second housing 2 for hanging the charger.

[0045] Embodiment 4

[0046] Based on Embodiment 1, Figure 4 A plurality of protection units 29 are provided on the charging base 28 in this embodiment. In the figure, 8 protection units 29 are provided; the protection units 29 are rubber pads, which are beneficial to the buffering of the battery pack 4 and protect the battery pack 4. A battery pack heat dissipation unit 41 is further provided above the electric fan 5, and the battery pack heat dissipation unit 41 is connected to the third housing 3. Two hanging holes 17 are further provided above the outer side of the third housing 3 for hanging the charger.

[0047] Embodiment 5

[0048] A charging combination based on Embodiment 2, Figure 7 includes a battery pack 4, and further includes the charger described above. The battery pack 4 is connected to the charger.

[0049] Embodiment 6

[0050] Based on Embodiment 2, the difference is that Figure 8 the battery pack 4 in this embodiment is a large battery pack 4.

[0051] Embodiment 7

[0052] Based on Embodiment 1, Figure 9 the battery pack 4 in this embodiment is a large battery pack 4 and is used to charge a large battery pack 4.

[0053] Embodiment 8

[0054] Based on Embodiment 1, the difference is thatFigure 10 The battery pack 4 of this embodiment is a small battery pack 4, which is used for the charging combination of two small battery packs 4.

[0055] Embodiment 9

[0056] Based on the above embodiments, the specific charging process of this embodiment includes: the charger starts, wakes up the battery pack 4, so that the charger is electrically connected to the battery pack 4. The charger determines the specification of the battery pack 4 and is set to the minimum gear. When there is a charging indicator on the charger, the charger sets the output voltage according to the voltage of the battery pack 4. When the output voltage is close to the target voltage, charging is carried out according to the current gear, and the charging current is adjusted. Check whether the charging gear needs to be switched. After the charging gear is switched, check whether the charger needs to be restarted according to the charging condition of the battery pack 4. Otherwise, check whether the battery pack 4 is fully charged. After being fully charged, the charging is completed, and the charger restores the charging indicator.

Claims

1. A charger, comprising a charger housing, characterized in that: The charger shell is an open cavity, and is provided with at least one connecting unit connected to the battery pack; at least one group of guide units for guiding the battery pack is also provided on the inner wall of the charger shell, and the guiding direction of the guide unit is consistent with the connection direction of the connecting unit.

2. A charger according to claim 1, characterized in that: A cooling air duct is provided at the bottom of the charger housing, and the cooling air duct includes at least one air inlet and an air outlet.

3. A charger according to claim 1, characterized in that: A charging circuit board and an electric fan are arranged inside the charger housing. The charging circuit boards are arranged opposite to each other with a ventilation channel in between. The electric fan is located at the end of the charging circuit board to dissipate heat from the charger.

4. A charger according to claim 1, characterized in that: The charger housing includes a first housing, a second housing and a third housing, wherein the second housing covers the first housing and is connected to the third housing; the second housing includes a first charging wall, a second charging wall and a charging base, wherein the first charging wall and the second charging wall are arranged parallel to each other and perpendicular to the charging base; The guide unit is located on the first charging wall and the second charging wall, and the connection unit is located on the charging base.

5. A charger according to claim 4, characterized in that: The cooling air duct includes a first air outlet in a first direction of the first shell, a second air inlet and a second air outlet perpendicular to the first direction, and the second air inlet and the second air outlet are arranged relatively parallel.

6. A charger according to claim 1, characterized in that: The charger shell includes a first shell and a second shell, and the second shell covers the first shell; the second shell includes a first charging wall, a second charging wall and a third charging wall, the first charging wall and the second charging wall are parallel to each other, the third charging wall is located between the first charging wall and the second charging wall, and is perpendicular to the first charging wall and the second charging wall; the connecting unit is located on the third charging wall, and the guiding unit is located on the second charging wall and the first charging wall.

7. A charger according to claim 6, characterized in that: The cooling air duct comprises a first air inlet and a first air outlet in a first direction of the first shell, and the first air inlet is arranged relatively parallel to the first air outlet; The third air inlet on the second shell and the third air outlet on the third shell form a ventilation channel when the third air outlet is attached to the wall.

8. A charger according to claim 6, characterized in that: The guide unit comprises a first guide unit and a second guide unit, the first guide unit and the second guide unit are arranged in parallel, the first guide unit is a guide column, and the second guide unit is a guide groove.

9. A charging assembly, comprising a battery pack, characterized in that: It also includes the charger described in any one of claims 1-8, and the battery pack is connected to the charger.

Images