Energy storage device and power system

Abstract

The present invention provides an energy storage device and an electric power system, and relates to the technical field of energy storage devices. The energy storage device comprises: a shell; a receiving groove, which is arranged inside the shell, and the receiving groove is configured to accommodate a battery pack; a ventilation assembly, which is arranged on at least one interface of the shell, and the ventilation assembly is configured to allow at least part of the air to enter or flow out of the shell from the side of the ventilation assembly; a first hydrophobic portion, which is arranged on the flow path of air from the side to the inside of the shell, and the first hydrophobic portion is configured to evacuate at least part of the water flow entering from the side of the ventilation assembly. Air enters or flows out of the shell from the side of the ventilation assembly, and the first hydrophobic portion is arranged on the path of air circulation from the side of the ventilation assembly to the inside of the shell. The first hydrophobic portion evacuates the water flow entering from the side of the ventilation assembly, thereby preventing the water flow from entering the shell, effectively improving the waterproof effect of the energy storage device, and meeting the use in bad weather such as rain.

Description

Technical Field

[0001] The present invention relates to the technical field of energy storage devices, and in particular to an energy storage device and a power system. Background Art

[0002] Garden tools are maintenance equipment for human green landscapes. They are mechanized tools that replace most manual labor, such as lawn mowers, lawn pushers, and grass trimmers, and are used to maintain lawns, hedges, and protect flowers, plants, and trees. The energy storage device contains a battery pack that can charge the battery pack of the garden tool. As the uses and scenarios of garden tools increase, higher requirements are placed on garden tools, and better requirements are also placed on energy storage devices. Energy storage devices need to meet the application of some outdoor scenes. When encountering rainy weather, existing energy storage devices are not waterproof enough, which can easily cause rainwater to enter the energy storage device, causing faults such as short circuits in the battery pack in the energy storage device, affecting the use of the energy storage device, and in serious cases, causing safety accidents. Summary of the invention

[0003] In view of the above shortcomings of the prior art, the present invention provides an energy storage device to improve the technical problem that the existing energy storage device has insufficient waterproof ability and rainwater can easily enter.

[0004] To achieve the above-mentioned purpose and other related purposes, the present invention provides an energy storage device, comprising: a shell; a receiving groove, arranged inside the shell, and the receiving groove is configured to accommodate a battery pack; a ventilation component, arranged on at least one interface of the shell, and the ventilation component is configured to allow at least part of the air to enter or flow out of the shell from the side of the ventilation component; a first hydrophobic portion, arranged on the flow path of air from the side to the inside of the shell, and the first hydrophobic portion is configured to isolate at least part of the water flow entering from the side of the ventilation component.

[0005] In an exemplary embodiment of the present application, a plurality of receiving slots are arranged side by side inside the shell, the receiving slots are provided with air flow holes, and at least one set of ventilation components is correspondingly arranged at each of the air flow holes.

[0006] In an exemplary embodiment of the present application, the ventilation assembly includes a ventilation hole and a water stopper, and a projection of the water stopper along the airflow direction in the ventilation hole covers the ventilation hole.

[0007] In an exemplary embodiment of the present application, the first hydrophobic portion is disposed at the periphery of the ventilation hole, and a first gap allowing air circulation is formed between the water blocking member and the first hydrophobic portion.

[0008] In an exemplary embodiment of the present application, the first gap is no greater than 6 mm.

[0009] In an exemplary embodiment of the present application, a recess is provided around the vent hole toward the outside of the shell, the first hydrophobic portion is provided in the recess, and the first hydrophobic portion and the recess form a first guide groove for guiding water flow away from the first hydrophobic portion.

[0010] In an exemplary embodiment of the present application, a side wall of the shell on which the ventilation assembly is provided is provided with a water shielding portion, and a projection of the water shielding portion along the height direction of the shell at least covers a side of the ventilation assembly.

[0011] In an exemplary embodiment of the present application, an angle between the water retaining member and a line connecting the top of the water retaining member and the water shielding portion away from the side end of the shell is 110° to 170°.

[0012] In an exemplary embodiment of the present application, a distance between a projection of the water retaining member along the height direction of the shell and a projection of the water shielding portion away from the shell end along the height direction of the shell is not less than 15 mm.

[0013] In an exemplary embodiment of the present application, the water retaining member and the ventilation hole are relatively rotatable, and a projection of a rotation axis of the water retaining member along an airflow direction in the ventilation hole falls into an upper half of the ventilation hole.

[0014] In an exemplary embodiment of the present application, the rotation range of the angle between the water retaining member and the line connecting the top of the water retaining member and the water shielding portion away from the side end of the shell is 110° to 170°.

[0015] In an exemplary embodiment of the present application, it also includes: a charging bin, which is arranged in the shell, and the receiving groove is arranged in the charging bin; wherein the lower part of the ventilation component is connected to the charging bin so that the water flowing through the ventilation component can flow into the charging bin.

[0016] In an exemplary embodiment of the present application, it also includes: a second hydrophobic portion, disposed in the shell, and the second hydrophobic portion is configured to guide the water in the charging compartment to the outside of the shell.

[0017] In an exemplary embodiment of the present application, it also includes: a third hydrophobic portion, which is disposed in the receiving groove, and the third hydrophobic portion is configured to guide the water flow in the receiving groove into the charging compartment.

[0018] In an exemplary embodiment of the present application, plug-in terminals electrically connected to the battery pack are disposed in the receiving groove, and a fourth hydrophobic portion is disposed between the plug-in terminals, and the fourth hydrophobic portion is configured to guide water flow between the plug-in terminals.

[0019] In an exemplary embodiment of the present application, the width of the fourth hydrophobic portion is not less than 2.5 mm.

[0020] In an exemplary embodiment of the present application, the fourth hydrophobic portion is in an arc shape, and an angle between a tangent line at an end of the fourth hydrophobic portion and a horizontal plane is not less than 30°.

[0021] In an exemplary embodiment of the present application, an air outlet component is disposed on at least one interface of the shell, and the air outlet component is configured to allow at least part of the air to flow out of the shell from the bottom side of the air outlet component.

[0022] The present application also provides an energy storage device, comprising: a housing;

[0023] A receiving groove is arranged inside the housing and is provided with at least one opening;

[0024] a ventilation assembly disposed on at least one interface of the housing, the ventilation assembly being configured to allow air to enter or flow out of the housing from different directions;

[0025] The first hydrophobic portion is disposed on one side of the ventilation component and is configured to at least deflect water flow entering from at least one of the different directions.

[0026] The present application also provides a power system, comprising: a housing;

[0027] A receiving groove is arranged inside the housing and is provided with at least one opening;

[0028] A battery pack, detachably mounted in the receiving slot through the opening;

[0029] The circuit board module is accommodated in the shell and is electrically connected to the battery pack through the wiring terminals in the receiving groove to achieve power transmission.

[0030] a ventilation assembly disposed on at least one interface of the housing, the ventilation assembly being configured to allow air to enter or flow out of the housing from different directions;

[0031] The first hydrophobic portion is disposed on one side of the ventilation component and is configured to at least deflect water flow entering from at least one of the different directions.

[0032] The beneficial effects of the present invention are:

[0033] In the energy storage device of the present application, air enters or flows out of the shell from the side of the ventilation component, and a first hydrophobic portion is provided on the path where the air flows from the side of the ventilation component and the inside of the shell. The first hydrophobic portion separates the water flow entering from the side of the ventilation component, thereby preventing the water flow from entering the shell, effectively improving the waterproof effect of the energy storage device and meeting the requirements for use in severe weather such as rain. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0035] Figure 1 This is a schematic diagram of an exemplary energy storage device of the present application;

[0036] Figure 2 This is a front view of an exemplary energy storage device of the present application;

[0037] Figure 3 It is a right side view of an exemplary energy storage device of the present application;

[0038] Figure 4 For this application Figure 3 A magnified image of the middle A area;

[0039] Figure 5 This is a partial structural schematic diagram of an exemplary energy storage device of the present application;

[0040] Figure 6 For this application Figure 5 Enlarged view of area B;

[0041] Figure 7 This is a schematic diagram of an exemplary water retaining member structure of the present application;

[0042] Figure 8 This is a schematic diagram of another angle of an exemplary water retaining member of the present application;

[0043] Fig. 9 This is another schematic diagram of an exemplary energy storage device of the present application;

[0044] Fig.10 For this application Fig. 9 Enlarged view of area C in the middle;

[0045] Fig.11 This is a partial structural schematic diagram of another exemplary energy storage device of the present application;

[0046] Fig.12 For this application Fig.11 Enlarged view of area D in the middle;

[0047] Fig.13 This is another schematic diagram of an exemplary water retaining member of the present application;

[0048] Fig.14 This is a schematic diagram of another exemplary water retaining member of the present application from another angle;

[0049] Fig.15This is a schematic diagram of the internal structure of an exemplary energy storage device of the present application;

[0050] Fig.16 A top view of the internal structure of an exemplary energy storage device of the present application;

[0051] Fig.17 This is a schematic diagram of an exemplary shell structure in this application;

[0052] Fig.18 This is a top view of an exemplary housing in the present application;

[0053] Fig.19 This is a schematic diagram of an exemplary lower shell structure of the present application;

[0054] Fig. 20 This is a top view of an exemplary lower housing of the present application;

[0055] Fig.21 This is a schematic diagram of an exemplary terminal structure of the present application;

[0056] Fig. 22 This is a top view of an exemplary terminal block of the present application;

[0057] Fig.23 For this application Fig. 22 Middle EE section cutaway view;

[0058] Fig.24 For this application Figure 2 Schematic diagram of the FF cross section.

[0059] Component number description

[0060] 100, housing; 110, upper cover; 120, middle housing; 121, water shielding portion; 130, lower housing; 140, charging compartment; 150, second water-repellent portion; 151, second water guide groove; 152, third water guide groove;

[0061] 200, containing groove; 210, air flow hole; 220, third hydrophobic portion;

[0062] 300, ventilation assembly; 310, ventilation hole; 311, clip; 312, water retaining strip; 313, connecting rod; 320, water retaining member; 321, rotating shaft; 322, first countersunk hole; 323, second countersunk hole; 330, first gap;

[0063] 400, first hydrophobic portion; 410, concave portion; 420, first guide groove;

[0064] 500, plug terminal; 510, fourth hydrophobic portion; 520, connecting piece;

[0065] 600, air outlet assembly; 610, air outlet; 620, air outlet cover. DETAILED DESCRIPTION

[0066] The following is an explanation of the embodiments of the present invention by specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the features in the following embodiments and the embodiments can be combined with each other without conflict. It should also be understood that the terms used in the embodiments of the present invention are intended to describe specific embodiments, rather than to limit the scope of protection of the present invention. The test methods for which specific conditions are not specified in the following examples are usually carried out under conventional conditions or according to the conditions recommended by the manufacturers.

[0067] When numerical ranges are given in the embodiments, it should be understood that, unless otherwise specified in the present invention, both endpoints of each numerical range and any value between the two endpoints can be selected. Unless otherwise defined, all technical and scientific terms used in the present invention are familiar to those skilled in the art and the description of the present invention, and any methods, equipment and materials of the prior art similar or equivalent to the methods, equipment and materials described in the embodiments of the present invention can also be used to implement the present invention.

[0068] It should be noted that the terms such as "upper", "lower", "left", "right", "middle" and "one" etc. used in this specification are only for the convenience of description and are not intended to limit the scope of implementation of the present invention. Changes or adjustments to their relative relationships, without substantially changing the technical content, should also be regarded as the scope of implementation of the present invention.

[0069] See also Figure 1 , Figure 6 and Fig.15 The present application provides an energy storage device, which includes a housing 100, a receiving slot 200, a ventilation assembly 300, and a first hydrophobic portion 400. The receiving slot 200 is disposed inside the housing 100, and the receiving slot 200 is configured to accommodate a battery pack. Exemplarily, the energy storage device can charge the battery pack in the receiving slot 200 by connecting an external power source.

[0070] In another embodiment, the energy storage device is further configured with a bidirectional inverter circuit. The energy storage device can charge the battery pack in the receiving slot 200 by connecting to an external power source, and can also connect to electrical equipment through an AC and / or DC interface configured on the energy storage device to allow the battery pack in the receiving slot 200 to discharge outward.

[0071] In one embodiment of the present application, the battery pack can be detachably fixed in the receiving slot 200. After the battery pack is fully charged, the battery pack storing electrical energy can be detached and used to meet the usage requirements of different devices.

[0072] In one embodiment of the present application, the ventilation component 300 is disposed on at least one interface of the housing 100. Preferably, the ventilation component 300 is disposed on the side wall of the housing 100. The ventilation component 300 is configured to allow at least part of the air to enter or flow out of the housing 100 from the side of the ventilation component 300. Exemplarily, at least part of the air enters or flows out of the housing from a direction parallel or approximately parallel to the interface where the ventilation component 300 is located. Air enters or flows out of the housing 100 from the side of the ventilation component 300. When encountering rainy days, rainwater cannot enter the housing 100 from the front impact of the ventilation component 300, thereby reducing rainwater from entering the housing 100 from the ventilation component 300 and improving the waterproof effect of the energy storage device.

[0073] In one embodiment of the present application, the first hydrophobic portion 400 is disposed on the flow path of air from the side to the inside of the housing 100, and the first hydrophobic portion 400 is configured to evacuate at least part of the water flow entering from the side of the ventilation component 300. Some water flow such as rainwater impacts the inside of the housing 100 from the side of the ventilation component 300. By arranging the first hydrophobic portion 400 on the flow path of air from the side to the inside of the housing 100, the water flow entering from the side of the ventilation component 300 can be evacuated, thereby reducing or preventing the water flow from entering the housing 100 from the ventilation component 300, effectively improving the waterproof ability of the energy storage device, and meeting the use requirements of the energy storage device in bad weather such as rainy days.

[0074] See also Figure 1 , Fig.15 and Fig.16 In one embodiment of the present application, a plurality of receiving slots 200 are arranged side by side inside the housing 100. By arranging a plurality of receiving slots 200 side by side inside the housing 100, multiple battery packs can be placed, thereby improving the energy storage capacity of the energy storage device. Exemplarily, the receiving slots 200 are arranged in two rows, and the two rows of receiving slots 200 are symmetrically arranged inside the housing 100. In other embodiments, the receiving slots 200 can be arranged in one row, three rows, four rows, etc.

[0075] In one embodiment of the present application, the receiving tank 200 is provided with an air flow hole 210, and the air flow hole 210 connects the receiving tank 200 with the outside air. Through the air flow hole 210, the cold air from the outside can flow into the receiving tank 200 to cool the battery pack. Alternatively, the hot air in the battery pack is discharged through the air flow hole 210, and the cold air flows into the receiving tank from the air flow hole 210 or other holes at other positions, thereby cooling the battery pack. At least one set of ventilation components 300 is correspondingly provided at each air flow hole 210. The circulation between the receiving tank 200 and the outside air is through the air flow hole 210 and the ventilation component 300. Through the cooperation of the ventilation component 300 and the first hydrophobic part 400, the water flow entering the receiving tank 200 through the air flow hole 210 is reduced, the risk of the battery pack being immersed in water is reduced, and the waterproof ability of the energy storage device is improved.

[0076] See also Figures 4 to 6 , Figure 10 to Figure 12 In one embodiment of the present application, the ventilation assembly 300 includes a ventilation hole 310 and a water stopper 320, and the projection of the water stopper 320 along the direction in which the ventilation hole 310 penetrates the shell 100 covers the ventilation hole 310. The ventilation hole 310 allows airflow to enter or flow out of the shell 100, and the projection of the water stopper 320 covers the ventilation hole 310. The airflow enters or flows out of the shell 100 through the surrounding side of the water stopper 320, vertically or nearly vertically to the direction in which the ventilation hole 310 penetrates the shell 100, that is, the side of the ventilation assembly 300. When water flows toward the ventilation hole 310, the water flow in front of the ventilation hole 310 can be blocked by the water stopper 320, thereby effectively reducing the water flow entering the shell 100 through the ventilation assembly 300, and improving the water blocking capacity of the energy storage device.

[0077] Please continue reading Figures 4 to 6 , Figure 10 to Figure 12 In one embodiment of the present application, the first hydrophobic portion 400 is disposed on the periphery of the ventilation hole 310, and a first gap 330 allowing air circulation is formed between the water retaining member 320 and the first hydrophobic portion 400. The airflow enters the ventilation hole 310 through the first gap 330, and by disposing the first hydrophobic portion 400 on the periphery of the ventilation hole 310 near the water retaining member 320, part or all of the water flow is evacuated, further reducing or preventing the water flow from entering the housing 100 through the ventilation assembly 300.

[0078] In one embodiment of the present application, the first gap 330 is not larger than 6 mm. When the size of the first gap 330 is larger, water will flow into the ventilation hole 310 through the first gap 330, reducing the water-repelling ability of the first hydrophobic portion 400. By limiting the size of the first gap 330 to within 6 mm, the water-repelling ability of the first hydrophobic portion 400 can be ensured. Preferably, the size range of the first gap 330 is 1.5 mm to 6 mm, and any value between 1.5 mm and 6 mm can be selected, such as 1.5 mm, 2 mm, 3 mm, 5 mm, 6 mm, etc., which not only ensures the passing ability of the airflow, but also ensures the water-repelling ability of the first hydrophobic portion 400.

[0079] In one embodiment of the present application, the first hydrophobic portion 400 is a baffle disposed around the outer periphery of the ventilation hole 310, and the shape of the baffle is adapted to the shape of the ventilation hole 310. Preferably, the bottom of the baffle is open, which reduces the ingress of rainwater and improves the air flow capacity.

[0080] See also Figure 6 , Fig.12 In one embodiment of the present application, a recess 410 is provided around the vent hole 310 toward the outside of the housing 100, the first hydrophobic portion 400 is provided in the recess 410, and the first hydrophobic portion 400 and the recess 410 form a first guide groove 420 for guiding the water flow separated from the first hydrophobic portion 400. By arranging the first hydrophobic portion 400 in the recess 410, the recess 410 provides an installation space for the first hydrophobic portion 400. Preferably, the first hydrophobic portion 400 is at least partially hidden in the recess 410 along the projection perpendicular to the direction in which the vent hole 310 passes through the housing 100. When the water flow impacts, the recess 410 can converge the water flow entering the recess 410. The first hydrophobic portion 400 and the recess 410 form a first guide groove 420 to guide the water flow separated from the first hydrophobic portion 400 to avoid water flow aggregation. Exemplarily, the first guide groove 420 guides the water flow along the side wall of the housing 100 to the bottom of the housing 100 .

[0081] See also Figure 1 , Figure 4 , Figure 9-10 In one embodiment of the present application, a water shielding portion 121 is provided on the side wall of the housing 100 provided with the ventilation assembly 300. The projection of the water shielding portion 121 along the height direction of the housing 100 at least covers the side of the ventilation assembly 300. For example, the projection of the water shielding portion 121 along the height direction of the housing 100 at least covers the first gap 330. The water shielding portion 121 blocks rainwater and other water flows from impacting the ventilation assembly 300 from the top side of the ventilation assembly 300. By covering the side of the ventilation assembly 300 with the projection of the water shielding portion 121, it is possible to reduce or prevent rainwater and other water flows from entering the ventilation hole 310 from the top side of the ventilation assembly 300, thereby further improving the waterproof capability of the energy storage device.

[0082] See also Figure 1 to Figure 3 Exemplarily, the shell 100 includes an upper cover 110, a middle shell 120 and a lower shell 130. The upper cover 110 is rotatably connected to the middle shell 120. The accommodating groove 200 is arranged in the middle shell 120 to facilitate the removal and placement of the battery pack. The lower shell 130 is relatively fixed to the middle shell 120, and a chamber for accommodating the circuit board module is formed between the lower shell 130 and the middle shell 120.

[0083] In one embodiment of the present application, the water shielding portion 121 is disposed on the middle shell 120. The water shielding portion 121 may be a partially protruding structure of the middle shell 120, or may be disposed separately, as long as the water shielding portion 121 shields the ventilation assembly 300.

[0084] See also Figure 4 , Figure 6 to Figure 8 In one embodiment of the present application, the water retaining member 320 is relatively fixed to the ventilation hole 310, and the fixing method can be plug-in, bolt connection, welding, bonding, etc.

[0085] In one embodiment of the present application, Figure 6 As shown in , a connecting rod 313 with an internal thread is provided in the vent 310, and an internal thread hole is also provided on the water retaining member 320. The connecting rod 313 and the water retaining member 320 are connected by bolts to achieve relative fixation of the water retaining member 320 and the vent 310. Exemplarily, the internal thread hole of the water retaining member 320 away from the housing 100 side is a first countersunk hole 322. After the water retaining member 320 and the vent 310 are connected, the nail head of the bolt can be hidden in the first countersunk hole 322 to avoid the exposed nail head scratching the worker. Exemplarily, in order to facilitate the positioning between the water retaining member 320 and the housing 100, the internal thread of the water retaining member 320 close to the housing 100 side is provided with a second countersunk hole 323. The inner diameter of the second countersunk hole 323 is the same as the outer diameter of the connecting rod 313 on the vent 310. When assembling, the connecting rod 313 is first inserted into the countersunk hole 323, and then connected by bolts, screws, etc., to facilitate positioning and fixing. Exemplarily, three triangular connecting rods 323 are provided on the ventilation hole 310 to ensure stable connection and reduce shaking of the water retaining member 320 .

[0086] See also Figure 4In one embodiment of the present application, the angle α between the water retaining member 320 and the line connecting the top of the water retaining member 320 and the side end of the water shielding portion 121 away from the housing 100 is 110° to 170°. The lower end of the water shielding portion 121 away from the housing 100 is connected to the top of the water retaining member 320 to form an oblique line, and the angle α between the plane where the water retaining member 320 is located and the formed oblique line is 110° to 170°. The angle can be any value between 110° and 170°, such as 110°, 120°, 150°, 166°, 170°, etc., which can effectively prevent the inclined water flow from impacting the ventilation hole 310.

[0087] See also Figure 4 In one embodiment of the present application, the distance between the projection of the water retaining member 320 along the height direction of the shell 100 and the projection of the edge of the water shielding portion 121 away from the shell 100 along the height direction of the shell is not less than 15 mm. Along the height direction of the shell, the distance between the projection of the water retaining member 320 away from one side of the shell and the projection of the water shielding portion 121 away from one side of the shell is not less than 15 mm, which can effectively ensure the water shielding ability of the water shielding portion 121 to the ventilation assembly 300 and prevent water from entering the ventilation hole 310 from the top side of the water retaining member 320. Preferably, the distance between the projections ranges from 15 mm to 60 mm, and the distance between the projections can be any value between 15 mm and 60 mm, such as 15 mm, 20 mm, 30 mm, 55 mm, 60 mm, etc., which not only ensures the water shielding effect of the water shielding portion 121, but also prevents the water shielding portion 121 from protruding too much from the shell 100, affecting the aesthetics or structural design of the energy storage device.

[0088] See also Figure 10 to Figure 14 In another embodiment of the present application, the water retaining member 320 and the vent 310 can rotate relative to each other, and the projection of the rotating shaft 321 of the water retaining member 320 along the direction in which the vent 310 penetrates the housing 100 falls into the upper half of the vent 310. The water retaining member 320 rotates relative to the vent 310, and the size of the side of the ventilation assembly 300 can be adjusted, thereby adjusting the cross-sectional size of the airflow channel. When encountering bad weather such as rain, by reducing the cross-sectional size of the airflow channel, the water flow such as rainwater entering the housing can be reduced; when encountering weather without water flow, the cross-sectional size of the airflow channel can be increased to increase the airflow flow. Improve the heat dissipation capacity of the energy storage device. The projection of the rotating shaft 321 of the water retaining member 320 along the airflow direction in the vent 310 falls into the upper half of the vent 310, ensuring that the water retaining member 320 still has a certain water retaining capacity after rotating, avoiding emergencies, such as sudden heavy rain, and the water retaining member 320 has a water retaining effect. Exemplarily, the rotating shaft 321 is horizontally arranged, and the water flow below the water retaining member 320 is larger than the water flow above. After the water retaining member 320 rotates, the position of the water retaining member 320 with larger water flow is away from the ventilation hole 310, effectively reducing the water flow entering the ventilation hole 310.

[0089] See also Figure 12-13 In one embodiment of the present application, a clip 311 is provided in the ventilation hole 310, and a rotating shaft 321 is provided on the water retaining member 320. The rotating shaft 321 is engaged with the clip 311, and the water retaining member 320 rotates relative to the ventilation hole 310 around the rotating shaft 321 to adjust the airflow channel. Exemplarily, the rotation range of the angle β between the water retaining member 320 and the line connecting the top of the water retaining member 320 and the water shielding portion 121 away from the side end of the housing 100 is 110° to 170°, and the rotation angle β range can be any interval between 110° and 170°, such as 110° to 120°, 130° to 150°, 155° to 170°, etc.

[0090] See also Figures 17-18 In one embodiment of the present application, the energy storage device further includes a charging compartment 140, the charging compartment 140 is disposed in the housing 100, and the receiving groove 200 is disposed in the charging compartment 140. In one embodiment, the charging compartment 140 and the middle housing 120 are the same component, and the middle housing 120 is integrally formed. Among them, the inner lower part of the ventilation component 300 is connected to the charging compartment 140 to prevent a small amount of water entering the housing 100 through the ventilation component 300 from entering the receiving groove 200. The inner lower part of the vent hole 310 is connected to the charging compartment 140, and the receiving groove 200 is disposed in the charging compartment 140, and the bottom wall of the receiving groove 200 is higher than the inner bottom wall of the charging compartment 140, thereby ensuring that a small amount of water entering the vent hole 310 flows into the charging compartment 140, preventing water from flowing into the receiving groove 200, reducing the impact on the circuit, and avoiding damage to the battery pack.

[0091] See also Fig.12 , Fig.24 In one embodiment of the present application, a water retaining strip 312 is provided below the inner wall of the vent hole 310, and the water retaining strip 312 blocks a small amount of water flow entering the vent hole 310, thereby reducing the water flow entering the housing 100. Exemplarily, the top of the water retaining strip 310 is lower than the bottom of the air flow hole 210, which can reduce the impact on the air flow on the one hand, ensuring that there is sufficient air flow entering or flowing out of the housing 100, and on the other hand, it can ensure that in extreme cases, the water flow entering the vent hole 310 flows into the charging compartment 140, avoiding impact on the receiving slot 200, and protecting the battery pack. Exemplarily, with the water retaining strip 312 as the boundary, the bottom wall of the vent hole 310 away from the inner side of the housing 100 is an inclined surface, and the height of the bottom wall gradually decreases from the housing 100 to the outer side of the housing 100, so that the water flow blocked by the water retaining strip 312 can flow out of the vent hole 310.

[0092] See also Figures 18 to 20The energy storage device further includes a second hydrophobic portion 150, which is disposed in the housing 100 and guides the water flow in the charging compartment 140 to the outside of the housing 100. By providing the second hydrophobic portion 150, the water flow entering the housing 100 from the upper cover 110 or entering the housing 100 from the ventilation hole 310 in extreme cases can be guided to the outside of the housing 100, ensuring that the battery pack and circuit board module in the housing 100 are not affected by the water flow.

[0093] In one embodiment of the present application, the second hydrophobic portion 150 includes a second water guide groove 151 disposed in the charging compartment 140 and a third water guide groove 152 of the lower housing 130. The second water guide groove 151 and the third water guide groove 152 may be groove-shaped structures or hole-shaped structures, which can be used to guide the water flow in the charging compartment 140 to the outside of the housing 100. Exemplarily, the second water guide groove 151 is connected to the third water guide groove 152 through a pipe or the like, so that the water flow in the charging compartment 140 is directly guided through the third water guide groove 152, so as to avoid the water flow in the second water guide groove 151 flowing through the lower housing 130, resulting in damage to the circuit board module in the lower housing 130. In one embodiment, the number of the third water guide grooves 152 is greater than the number of the second water guide grooves 151, so as to ensure that the water flow in the lower housing 130 can be quickly discharged.

[0094] See also Fig.17 In one embodiment of the present application, the energy storage device further includes a third hydrophobic portion 220, which is disposed in the receiving tank 200. The third hydrophobic portion 220 guides the water flow in the receiving tank 200 to the charging compartment 140. The receiving tank 200 is disposed in the charging compartment 140, and the bottom wall of the receiving tank 200 is higher than the inner bottom wall of the charging compartment 140. By providing the third hydrophobic portion 220, it is ensured that in extreme cases, the water flow in the receiving tank 200 can be discharged into the charging compartment 140 through the third hydrophobic portion 220, and then guided out of the housing 100 through the second hydrophobic portion 150. Exemplarily, the third hydrophobic portion 220 is disposed at the bottom of the receiving tank 220, and can be a hole-shaped structure or a groove-shaped structure, as long as the drainage requirements of the receiving tank 220 are met.

[0095] See also Figure 21 to Figure 23Exemplarily, a plug-in terminal 500 electrically connected to the battery pack is provided in the receiving slot 200, and a plurality of plug-in terminals 500 are relatively fixed as a group by a connector 520, and one or more groups of plug-in terminals 500 are provided in a single receiving slot 200. A fourth hydrophobic portion 510 is provided between the plug-in terminals 500, and the fourth hydrophobic portion 510 guides the water flow between the plug-in terminals 500. The battery pack is electrically connected to the energy storage device through a plurality of plug-in terminals 500, and a portion of the plug-in terminals 500 protrudes from the connector 520 to facilitate connection with the battery pack. By providing the fourth hydrophobic portion 510 between the plug-in terminals 500, short circuits or series connections between the plug-in terminals 500 are avoided, thereby avoiding faults such as damage to the battery pack. Exemplarily, the fourth hydrophobic portion 510 is a groove that crosses the connector 520 between the plug terminals 500, and the height of the groove is lower than the connection between the plug terminal 500 and the connector 520. In other words, the height of the groove is lower than the height of the exposed part of the plug terminal 500, and the height of one end or both ends of the groove is located at the low point of the groove, ensuring that water flows out smoothly through the fourth hydrophobic portion 510 to avoid water flow causing conduction between any two plug terminals 500. In one embodiment, the fourth hydrophobic portion 510 is an arc-shaped groove, and the heights of the two ends of the arc-shaped groove are basically the same, both lower than the middle height of the arc-shaped groove. Exemplarily, the plug terminal 400 is a metal conductor, and the connector 520 is an insulating plastic part.

[0096] See also Fig. 22 In one embodiment of the present application, the width of the fourth hydrophobic portion 510 is not less than 2.5 mm, reducing or avoiding the capillary phenomenon. Exemplarily, the fourth hydrophobic portion 510 is in an arc shape, the angle γ between the tangent line at the end of the fourth hydrophobic portion 510 and the horizontal plane is not less than 30°, and the angle range γ between the tangent line at the end and the horizontal plane is 30° to 90°, which can effectively guide the water flow through the fourth hydrophobic portion 510. Exemplarily, the fourth hydrophobic portion 510 is polished to further avoid the occurrence of capillary phenomena.

[0097] See also Figure 1In one embodiment of the present application, the energy storage device further includes an air outlet assembly 600, which is disposed on at least one interface of the housing 100, and the air outlet assembly 600 allows at least part of the air to flow out of the housing from the bottom side of the air outlet assembly 600. Exemplarily, the air outlet assembly 600 includes an air outlet 610 and an air outlet cover 620, and the air outlet 610 penetrates the housing 100 so that the air in the housing 100 flows to dissipate heat for the energy storage device. The air outlet cover 620 is buckled at the air outlet 610, so that the air outlet direction of the air outlet 610 changes from being parallel to the direction in which the air outlet 610 penetrates the housing 100 to being vertical downward or nearly vertical to the direction in which the air outlet 610 penetrates 100, so that the air outlet assembly can only discharge air from the bottom side, and when the water flow impacts the air outlet assembly 600, the water flow flows downward under the action of gravity, thereby preventing the water flow from entering the housing 100 through the air outlet assembly 600. Exemplarily, the ventilation assembly 300 is arranged on the large surface of the side wall of the energy storage device, that is, the front and back surfaces consistent with the length direction of the energy storage device; the air outlet assembly 600 is arranged on the small surface of the side wall of the energy storage device, that is, the left side and the side surface consistent with the width direction of the energy storage device.

[0098] The present application also provides an energy storage device, including a shell 100, a receiving groove 200, a ventilation component 300 and a first hydrophobic portion 400. The receiving groove 200 is arranged inside the shell 100 and is provided with at least one opening for holding a battery pack. The ventilation component 300 is arranged on at least one interface of the shell 100, and the ventilation component 300 is configured to allow air to enter or flow out of the shell 100 from different directions; the first hydrophobic portion 400 is arranged on one side of the ventilation component 300, and is configured to at least isolate water flow entering from at least one of the different directions. The first hydrophobic portion 400 can reduce the water flow from the ventilation component 300 into the shell 100, thereby improving the waterproof ability of the energy storage device.

[0099] The present application also provides an electric power system, including a housing 100, a receiving slot 200, a battery pack, a circuit board module, a ventilation assembly 300 and a first hydrophobic portion 400, wherein the receiving slot 200 is arranged inside the housing 100 and is provided with at least one opening; the battery pack is detachably installed in the receiving slot 200 through the opening; the circuit board module is accommodated in the housing 100 and is electrically connected to the battery pack through the terminal 500 in the receiving slot 200 to achieve power transmission. The ventilation assembly 300 is arranged on at least one interface of the housing 100, and the ventilation assembly 300 is configured to allow air to enter or flow out of the housing from different directions; the first hydrophobic portion 400 is arranged on one side of the ventilation assembly 300, and is configured to at least evacuate water flow entering from at least one direction of different directions. The first hydrophobic portion 400 can reduce the water flow from the ventilation assembly 300 into the housing 100, thereby improving the waterproof ability of the energy storage device.

[0100] The present invention provides an energy storage device, which can evacuate the water flow from the side of the ventilation component 300 by setting a first hydrophobic portion on the flow path of air from the side to the inside of the shell 100, thereby reducing or preventing the water flow from the ventilation component 300 to enter the shell 100, effectively improving the waterproof ability of the energy storage device, and meeting the beneficial effect of meeting the use requirements of the energy storage device in bad weather such as rainy days. Therefore, the present invention effectively overcomes some practical problems in the prior art and has a high utilization value and use significance. The above embodiments are only illustrative of the principles and effects of the present invention, and are not used to limit the present invention. Anyone familiar with this technology can modify or change the above embodiments without violating the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the relevant technical field without departing from the spirit and technical ideas disclosed by the present invention should still be covered by the claims of the present invention.

Claims

1. An energy storage device, characterized in that: include: case; A receiving slot, disposed inside the housing, the receiving slot being configured to receive a battery pack; a ventilation assembly disposed on at least one interface of the housing, the ventilation assembly being configured to allow at least a portion of air to enter or flow out of the housing from a side of the ventilation assembly; The first hydrophobic portion is disposed on a flow path of air from the side to the inside of the shell, and the first hydrophobic portion is configured to isolate at least part of the water flow entering from the side of the ventilation component.

2. The energy storage device according to claim 1, characterized in that: A plurality of accommodating grooves are arranged side by side inside the shell, the accommodating grooves are provided with air flow holes, and at least one set of ventilation components is correspondingly arranged at each of the air flow holes.

3. The energy storage device according to claim 1, characterized in that: The ventilation assembly comprises a ventilation hole and a water stopper, wherein the projection of the water stopper along the airflow direction in the ventilation hole covers the ventilation hole.

4. The energy storage device according to claim 3, characterized in that: The first hydrophobic portion is disposed at the outer periphery of the ventilation hole, and a first gap allowing air to flow is formed between the water blocking member and the first hydrophobic portion.

5. The energy storage device according to claim 4, characterized in that: The first gap is no greater than 6 mm.

6. The energy storage device according to claim 4, characterized in that: A recess is provided around the vent hole toward the outside of the shell, the first hydrophobic portion is provided in the recess, and the first hydrophobic portion and the recess form a first guide groove for guiding water flow away from the first hydrophobic portion.

7. The energy storage device according to claim 3, characterized in that: The side wall of the shell on which the ventilation assembly is provided is provided with a water shielding portion, and the projection of the water shielding portion along the height direction of the shell at least covers the side of the ventilation assembly.

8. The energy storage device according to claim 7, characterized in that: The angle between the water retaining member and the line connecting the top of the water retaining member and the water shielding portion away from the side end of the shell is 110° to 170°.

9. The energy storage device according to claim 7, characterized in that: The distance between the projection of the water retaining member along the height direction of the shell and the projection of the water shielding portion away from the end of the shell along the height direction of the shell is not less than 15 mm.

10. The energy storage device according to claim 7, characterized in that: The water retaining member and the ventilation hole can rotate relative to each other, and the projection of the rotation axis of the water retaining member along the air flow direction in the ventilation hole falls into the upper half of the ventilation hole.

11. The energy storage device according to claim 10, characterized in that: The rotation range of the angle between the water retaining member and the line connecting the top of the water retaining member and the water shielding portion away from the side end of the shell is 110° to 170°.

12. The energy storage device according to claim 1, characterized in that: Also includes: A charging compartment is disposed in the housing, and the receiving slot is disposed in the charging compartment; The lower part of the ventilation component is connected to the charging compartment so that the water flowing through the ventilation component can flow into the charging compartment.

13. The energy storage device according to claim 12, characterized in that: Also includes: The second hydrophobic portion is disposed in the shell, and the second hydrophobic portion is configured to guide the water in the charging compartment to the outside of the shell.

14. The energy storage device according to claim 13, characterized in that: Also includes: The third hydrophobic portion is disposed in the receiving groove, and the third hydrophobic portion is configured to guide the water in the receiving groove into the charging compartment.

15. The energy storage device according to claim 1, characterized in that: The receiving groove is provided with plug-in terminals electrically connected to the battery pack, and a fourth hydrophobic portion is provided between the plug-in terminals, and the fourth hydrophobic portion is configured to guide water flow between the plug-in terminals.

16. The energy storage device according to claim 15, characterized in that: The width of the fourth hydrophobic portion is not less than 2.5 mm.

17. The energy storage device according to claim 16, characterized in that: The fourth hydrophobic portion is in an arc shape, and an angle between a tangent line at an end of the fourth hydrophobic portion and a horizontal plane is not less than 30°.

18. The energy storage device according to claim 1, characterized in that: Also includes: An air outlet component is disposed on at least one interface of the shell, and the air outlet component is configured to allow at least part of the air to flow out of the shell from the bottom side of the air outlet component.

19. An energy storage device, characterized in that: include: case; A receiving groove is arranged inside the housing and is provided with at least one opening; a ventilation assembly disposed on at least one interface of the housing, the ventilation assembly being configured to allow air to enter or flow out of the housing from different directions; The first hydrophobic portion is disposed on one side of the ventilation component and is configured to at least deflect water flow entering from at least one of the different directions.

20. A power system, characterized in that: include: case; A receiving groove is arranged inside the housing and is provided with at least one opening; A battery pack, detachably mounted in the receiving slot through the opening; A circuit board module is received in the housing and electrically connected to the battery pack via the wiring terminals in the receiving slot to achieve power transmission; a ventilation assembly disposed on at least one interface of the housing, the ventilation assembly being configured to allow air to enter or flow out of the housing from different directions; The first hydrophobic portion is disposed on one side of the ventilation component and is configured to at least deflect water flow entering from at least one of the different directions.

Images