Charger and battery pack system

Abstract

The utility model provides a charger and a battery pack system. The charger comprises a shell, a connector and a heat dissipation device. Wherein the connector is arranged on a mounting position of the shell, the connector is used for connecting the battery pack, the battery pack is mounted on the mounting position, at least one air inlet hole is formed in the mounting position, an air outlet hole is formed in the shell, and the air inlet hole corresponds to a tail jack of the battery pack. And the heat dissipation device is used for sucking air in the battery pack through the air inlet hole and the tail jack and exhausting the air through the air outlet hole. According to the charger provided by the invention, air flow in the battery pack and the charger can be accelerated, active heat dissipation is performed on the battery pack, the influence of over-temperature protection on user experience is avoided, and the charging speed of the battery pack is improved.

Description

Technical Field

[0001] The present application relates to the technical field of charging equipment, and in particular to a charger and battery pack system. Background Art

[0002] When the battery pack is charging, the temperature inside the battery pack will rise. When the temperature exceeds the preset temperature range, the battery pack stops charging. The battery pack will not charge again until the temperature inside the battery pack drops to within the preset temperature range. The process of waiting for cooling will increase the charging time of the battery pack, affect the charging speed of the battery pack, and thus reduce the user experience. Utility Model Content

[0003] In view of the above, the present application provides a charger and battery pack system to solve the problem that battery pack over-temperature protection may reduce user experience.

[0004] The first aspect of the present application provides a charger comprising a housing, a connector, and a heat sink. The connector is disposed on a mounting position of the housing and is used to connect to a battery pack. The battery pack is mounted on the mounting position, the mounting position having at least one air inlet, and the housing has an air outlet, the air inlet corresponding to the battery pack's tail plug. The heat sink is used to draw air from the battery pack through the air inlet and tail plug, and to discharge the air through the air outlet.

[0005] In an embodiment of the present application, the heat dissipation device can inhale air in the battery pack through the air inlet and tail plug jack, and discharge the air through the air outlet to accelerate the air flow in the battery pack and charger, actively dissipate heat for the battery pack and charger, avoid over-temperature protection affecting the user experience, and improve the charging speed of the battery pack.

[0006] As an optional implementation, the connector includes at least two connecting pieces. These pieces are positioned on the mounting surface, with an air inlet provided between each pair of adjacent pieces. This design allows the heat sink to better draw air from the battery pack through the air inlets between the connecting pieces, further accelerating air flow within the battery pack.

[0007] As an optional implementation, the sum of the air inlet areas of each air inlet is less than or equal to 1.5 times the air outlet area of ​​each air outlet. This design can prevent the heat dissipation efficiency of the battery pack and charger from being affected by an excessively large air inlet area and an excessively small air outlet area.

[0008] As an optional implementation, the charger further includes a first stopper and a second stopper provided on the housing. Opposite sides of the battery pack are respectively abutted against the first and second stoppers. This design allows the battery pack to be stably secured to the charger, allowing the battery pack's tail jack to align with the charger's air inlet, preventing the battery pack from shaking and affecting ventilation efficiency.

[0009] As an optional implementation, the connector is an electrode holder, and the mounting position is set on the electrode holder. Based on this design, the charger can stably provide energy to the battery pack through the electrode holder.

[0010] The second aspect of the present application provides a battery pack system, comprising a battery pack and a charger. The charger comprises a housing, a connector, and a heat sink. The connector is disposed on a mounting position of the housing and is used to connect to the battery pack. The battery pack is mounted on the mounting position, and the mounting position is provided with at least one air inlet. The housing is provided with an air outlet, and the air inlet corresponds to the tail plug of the battery pack. The heat sink is used to draw air from the battery pack through the air inlet and tail plug, and to discharge the air through the air outlet.

[0011] In an embodiment of the present application, the heat dissipation device can inhale air in the battery pack through the air inlet and tail plug jack, and discharge the air through the air outlet to accelerate the air flow in the battery pack and charger, actively dissipate heat for the battery pack and charger, avoid over-temperature protection affecting the user experience, and improve the charging speed of the battery pack.

[0012] As an optional implementation, the connector includes at least two connecting pieces. These pieces are positioned on the mounting surface, with an air inlet provided between each pair of adjacent pieces. This design allows the heat sink to better draw air from the battery pack through the air inlets between the connecting pieces, further accelerating air flow within the battery pack.

[0013] As an optional implementation, the air inlet area of ​​each air inlet is less than or equal to 1.5 times the air outlet area of ​​each air outlet. Based on this design, it is possible to avoid the impact of excessive air inlet area and excessive air outlet area on the heat dissipation efficiency of the battery pack and charger.

[0014] As an optional implementation, the charger further includes a first stopper and a second stopper provided on the housing. Opposite sides of the battery pack are respectively abutted against the first and second stoppers. This design allows the battery pack to be stably secured to the charger, allowing the battery pack's tail jack to align with the charger's air inlet, preventing the battery pack from shaking and affecting ventilation efficiency.

[0015] As an optional implementation, the connector is an electrode holder, and the mounting position is set on the electrode holder. Based on this design, the charger can stably provide energy to the battery pack through the electrode holder. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of a battery pack system provided in one embodiment of the present application.

[0017] Figure 2 This is a schematic diagram of a battery pack system provided in another embodiment of the present application.

[0018] Figure 3 This is a schematic diagram of a battery pack system provided in another embodiment of the present application.

[0019] Figure 4 This is a schematic diagram of the airflow path of a battery pack system provided in another embodiment of the present application. DETAILED DESCRIPTION

[0020] The technical solution of the present application is further described in detail below through the accompanying drawings and examples.

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application pertains. The terms used herein in the specification of this application are for the purpose of describing specific embodiments only and are not intended to limit this application.

[0022] In the embodiments of this application, terms such as "first" and "second" are used solely to distinguish between different objects and should not be construed as indicating or implying relative importance or order. For example, terms such as "first application" and "second application" are used to distinguish between different applications, not to describe a specific order of applications. Features defined as "first" or "second" may explicitly or implicitly include one or more of these features.

[0023] In actual applications, when the battery pack is charging, the temperature inside the battery pack will rise accordingly. When the temperature exceeds the preset temperature range, the battery pack stops charging. The battery pack will not charge again until the temperature inside the battery pack drops to within the preset temperature range. The process of waiting for cooling will increase the charging time of the battery pack, affect the charging speed of the battery pack, and thus reduce the user experience.

[0024] In view of the above, this application provides a charger and battery pack system that can solve the problem that battery pack over-temperature protection can reduce the user experience. This application can accelerate air flow within the battery pack, actively dissipate heat from the battery pack, avoid the impact of over-temperature protection on the user experience, and improve the charging speed of the battery pack.

[0025] See also Figure 1 , is a schematic diagram of a battery pack system 100 provided in an embodiment of the present application. The battery pack system 100 in this embodiment includes a battery pack 10 and a charger 20.

[0026] The charger 20 includes a housing 21, a connector 22 and a heat dissipation device ( Figure 1 Specifically, connector 22 is disposed on mounting position 23 of housing 21. Connector 22 is used to connect to battery pack 10. Battery pack 10 is mounted on mounting position 23. Mounting position 23 is provided with at least one air inlet 24. Housing 21 is provided with air outlet 25. Air inlet 24 corresponds to the tail plug of battery pack 10. The heat dissipation device is used to draw air from battery pack 10 through air inlet 24 and tail plug, and exhaust the air through air outlet 25.

[0027] In practice, the housing 21 of the charger 20 can be provided with multiple mounting locations 23, each of which is provided with a corresponding air inlet 24 and connector 22. When each battery pack 10 is connected to the charger 20 via the connector 22, the air inlet 24 of each battery pack 10 corresponds to the tail plug jack of the corresponding battery pack 10. In practice, the charger 20 also includes a plug 30, a charging circuit, and a controller disposed within the housing 21. The input of the charging circuit is connected to the power grid via the plug 30, and the output of the charging circuit is connected to each battery pack 10 via the connector 22. The controller is electrically connected to the control terminal of the charging circuit, and the controller is also electrically connected to the control terminal of the heat dissipation device. When the battery pack 10 is charging, the controller controls the charging circuit to rectify the electric energy output by the power grid, and then outputs the rectified electric energy to the battery pack 10 through the connector 22 to charge the battery pack 10. The controller also controls the heat dissipation device to suck in the air in the battery pack 10 through the air inlet 24 and the tail plug jack, and discharges the air in the battery pack 10 and the air in the charger 20 through the air outlet 25.

[0028] Optionally, the sum of the air inlet areas of the air inlet holes 24 is less than or equal to 1.5 times the air outlet area of ​​the air outlet holes 25 to avoid affecting the heat dissipation efficiency of the battery pack 10 and the charger 20 due to excessively large air inlet areas and excessively small air outlet areas.

[0029] In this embodiment, an air inlet 24 corresponding to the tail plug of the battery pack 10 is provided on the mounting position 23 of the connector 22, so that the heat dissipation device can inhale the air in the battery pack 10 through the air inlet 24 and the tail plug, and discharge the inhaled air through the air outlet 25. For the battery pack 10 without air outlet planning, the air flow in the battery pack 10 is accelerated, the active heat dissipation of the battery pack 10 is realized, the over-temperature protection of the battery pack 10 is avoided and the user experience is not affected, and the charging speed of the battery pack 10 is improved. For the battery pack 10 with internal air outlet planning, the air flow in the battery pack 10 is further improved, and the heat dissipation device can also discharge the air in the charger 20 through the air outlet 25, thereby accelerating the air flow in the charger 20.

[0030] In an optional implementation, the connector 22 includes at least two connecting pieces ( Figure 1 4 connecting pieces are used as an example for demonstration), and the connecting piece is arranged on the mounting position 23, and an air inlet 24 corresponding to the tail plug hole of the battery pack 10 is provided between each two adjacent plug pieces.

[0031] Specifically, such as Figure 1 As shown, the connector 22 may include four connecting plates, and each connecting plate is arranged on the mounting position 23, and an air inlet hole 24 corresponding to the tail plug hole of the battery pack 10 is provided between each two adjacent plug plates, so that the heat dissipation device can better absorb the air in the battery pack 10 through the air inlet holes 24 between the connecting plates, further accelerating the air flow in the battery pack 10.

[0032] In an optional implementation, the charger 20 further includes a first limiting portion 26 and a second limiting portion 27 disposed on the housing 21. In actual use, the first limiting portion 26 and the second limiting portion 27 are arranged along the X-direction shown in the figure, and opposite sides of the battery pack 10 are respectively abutted against the first limiting portion 26 and the second limiting portion 27. That is, the battery pack 10 can be abutted between the first limiting portion 26 and the second limiting portion 27 to limit the movement of the battery pack 10 in the X-direction, thereby allowing the battery pack 10 to be stably connected to the connector 22 on the charger 20. This further allows the tail plug of the battery pack 10 to be aligned with the air inlet 24 on the charger 20, preventing the battery pack 10 from shaking and affecting ventilation efficiency.

[0033] In actual applications, the connector 22 can also be an electrode seat, and the specific mounting position 23 is set on the electrode seat. In actual applications, the electrode seat is used to connect the battery pack 10 and enable the charging circuit to stably provide energy to the battery pack 10 through the electrode seat.

[0034] See also Figure 2 and Figure 3 , is a schematic diagram of a battery pack system 100 provided in another embodiment of the present application. Figure 1The difference between the embodiments is that, in this embodiment, a card slot 28 is provided on the housing 21 of the charger 20, and the connector 22 is provided on the mounting position 23 in the card slot 28, so that the battery pack 10 can be fixed on the connector 22 through the card slot 28, thereby enabling the tail plug hole of the battery pack 10 to be aligned with the air inlet 24 on the connector 22. Optionally, corresponding air outlet holes 25 ( Figure 2 and Figure 3 Only three sides are shown as an example) so that the heat dissipation device in the charger 20 can discharge the air in the charger 20 and the battery pack 10 through the air outlet 25.

[0035] In practical applications, such as Figure 4 As shown, in an optional implementation, the heat dissipation device is a fan 40, which can be set at the air outlet 25. The fan 40 can inhale the air in the battery pack 10 through the ventilation hole and the tail plug of the battery pack 10, and discharge the air in the battery pack 10 and the air in the charger 20 through the air outlet 25. The specific airflow path is as follows Figure 4 As shown by the arrow in , in actual applications, it is not limited to this.

[0036] Obviously, the charger 20 is configured with an air inlet 24 corresponding to the tail plug of the battery pack 10 at the mounting position 23 of the connector 22, so that the heat dissipation device can inhale the air in the battery pack 10 through the air inlet 24 and the tail plug, and discharge the inhaled air through the air outlet 25. For the battery pack 10 without air outlet planning, the air flow in the battery pack 10 is accelerated, thereby realizing active heat dissipation of the battery pack 10.

[0037] It is obvious to those skilled in the art that the present application is not limited to the details of the above exemplary embodiments and that the present application can be implemented in other specific forms without departing from the spirit or essential features of the present application. Therefore, as long as they are within the scope of the essence of the present application, appropriate changes and modifications made to the above embodiments should fall within the scope of protection claimed in the present application.

Claims

1. A charger, characterized in that: include: Housing, connector and heat dissipation device; wherein, The connector is provided on the mounting position of the housing, the connector is used to connect the battery pack, the battery pack is installed on the mounting position, the mounting position is provided with at least one air inlet hole, the housing is provided with an air outlet hole, the air inlet hole corresponds to the tail socket of the battery pack; The heat dissipation device is used to inhale the air in the battery pack through the air inlet hole and the tail plug hole, and discharge the air through the air outlet hole.

2. The charger according to claim 1, characterized in that The connector includes at least two connecting pieces; The connecting piece is arranged on the installation position, and one air inlet hole is arranged between every two adjacent inserting pieces.

3. The charger according to claim 1, wherein: The sum of the air inlet areas of the air inlet holes is less than or equal to 1.5 times the air outlet areas of the air outlet holes.

4. The charger according to claim 1, wherein: The charger further includes a first limiting portion and a second limiting portion provided on the housing; Two opposite sides of the battery pack are respectively held against the first limiting portion and the second limiting portion.

5. The charger according to claim 1, characterized in that The connector is an electrode holder; The mounting position is arranged on the electrode seat.

6. A battery pack system, characterized in that: include: Battery pack and charger; The charger includes a housing, a connector, and a heat dissipation device. The connector is disposed on a mounting position of the housing and is used to connect to the battery pack. The battery pack is mounted on the mounting position. The mounting position is provided with at least one air inlet. The housing is provided with an air outlet, and the air inlet corresponds to the tail socket of the battery pack. The heat dissipation device is used to inhale the air in the battery pack through the air inlet hole and the tail plug hole, and discharge the air through the air outlet hole.

7. The battery pack system according to claim 6, characterized in that: The connector includes at least two connecting pieces; The connecting piece is arranged on the installation position, and one air inlet hole is arranged between every two adjacent inserting pieces.

8. The battery pack system according to claim 6, characterized in that: The air inlet area of ​​each air inlet hole is less than or equal to 1.5 times the air outlet area of ​​each air outlet hole.

9. The battery pack system according to claim 6, characterized in that: The charger further includes a first limiting portion and a second limiting portion provided on the housing; Two opposite sides of the battery pack are respectively held against the first limiting portion and the second limiting portion.

10. The battery pack system according to claim 6, characterized in that: The connector is an electrode holder; The mounting position is arranged on the electrode seat.

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