Energy storage battery pack

Abstract

The invention discloses an energy storage battery pack which comprises a shell assembly, a battery module and a connecting terminal, the shell assembly comprises a shell and a waterproof part, the shell is provided with an opening, and the waterproof part is used for sealing the opening; the battery module is arranged in the shell; the connecting terminal is electrically connected with the battery module, the connecting terminal is arranged at the opening, and after the connecting terminal is connected with the connecting terminal corresponding to the other energy storage battery pack, the energy storage battery pack and the other energy storage battery pack are connected in parallel and expanded; at least one containing groove is further formed in the shell, and the containing groove is used for containing a waterproof component of one energy storage battery pack or a waterproof component of another energy storage battery pack. According to the energy storage battery pack provided by the embodiment of the invention, the taken-down waterproof part can be placed in the accommodating groove to be accommodated, so that the waterproof part is prevented from being lost due to no position for accommodating in the use process, and when parallel operation capacity expansion is cut off, the waterproof part can be taken out from the accommodating groove and the opening is sealed again, so that the waterproof part is prevented from being lost. Therefore, the energy storage battery pack is prevented from being damaged by water.

Description

Technical Field

[0001] The present application relates to the technical field of energy storage equipment, and more specifically, to an energy storage battery pack. Background Art

[0002] With the vigorous promotion of green and clean energy, especially in European and American countries and regions, more and more energy storage systems are entering households, which can provide green and clean electricity for households. Balcony photovoltaic energy storage system, also known as small household green power system, is one of the important products of energy storage system. It can be installed in balconies, courtyards and garages. At the same time, it is small in size and relatively light in weight, with good mobility and convenient to carry. It is also suitable for a variety of outdoor electricity scenarios. Balcony photovoltaic energy storage system usually includes solar panels and energy storage battery packs. The electricity generated by photovoltaic power generation through solar panels can be stored in the energy storage battery pack, and the energy storage battery pack then supplies power to various electrical equipment. The product form of the energy storage battery pack consists of a main battery pack and a power-up pack, and the number of power-up packs can be increased according to the user's electricity demand. The main battery pack and the power-up pack are stacked and connected through the connection terminals between the main battery pack and the power-up pack or the connection terminals between the power-up pack and the power-up pack to achieve smooth expansion, for example, from 2 kWh to 10 kWh. Due to waterproof requirements, the main battery pack and the power-up pack will be equipped with waterproof plugs or waterproof covers on the connection terminals between the main battery pack and the power-up pack, and between the power-up pack and the power-up pack when they leave the factory, so as to prevent water from entering the connection terminals and causing damage to the battery pack. However, in some scenarios, such as household power scenarios, when users need to expand the capacity of the energy storage battery pack, they need to remove the waterproof plugs on the connection terminals of the main battery pack and the waterproof covers on the connection terminals of the power-up pack, and then stack the main battery pack and the power-up pack so that the connection terminals of the main battery pack and the connection terminals on the power-up pack are connected to achieve capacity expansion. However, after the waterproof plugs and waterproof covers are removed, they are not used again for a long time and are easily forgotten or even lost by users. In other scenarios, such as outdoor power scenarios, users need to take out the main battery pack and carry it outdoors for use. However, if the waterproof plug of the main battery pack is lost, the connection terminals of the main battery pack will be exposed, and the waterproof function of the main battery pack will be destroyed, thereby increasing the risk of damage to the main battery pack. Similarly, the same problem will occur if the waterproof plug or waterproof cover of the power-up pack is lost. Therefore, the existing stacked energy storage power supply system lacks a better anti-lost storage design for the waterproof plug and the waterproof cover. Summary of the invention

[0003] An embodiment of the present application provides an energy storage battery pack.

[0004] The energy storage battery pack of the embodiment of the present application includes:

[0005] A housing component, the housing component comprising a housing and a waterproof component, the housing having an opening, and the waterproof component being used to seal the opening;

[0006] A battery module, wherein the battery module is disposed in the housing;

[0007] A connecting terminal, the connecting terminal is electrically connected to the battery module, the connecting terminal is arranged at the opening, and after the connecting terminal is connected to a corresponding connecting terminal of another energy storage battery pack, the energy storage battery pack and the another energy storage battery pack are connected in parallel for capacity expansion;

[0008] Wherein, the housing is further formed with at least one accommodating groove, and the accommodating groove is used to accommodate the waterproof component of the energy storage battery pack or the waterproof component of the other energy storage battery pack.

[0009] The energy storage battery pack provided in the embodiment of the present application can place the removed waterproof component in the receiving groove for storage when several energy storage battery packs are connected in parallel for capacity expansion by connecting terminals, so as to avoid the waterproof component being lost due to lack of storage space during use; when disconnecting and paralleling for capacity expansion, the waterproof component can be taken out of the receiving groove and the opening can be resealed to avoid water intrusion and damage to the energy storage battery pack.

[0010] In some embodiments, the housing has two openings, the two openings include a first opening and a second opening, the first opening is located on the upper top surface of the housing, and the second opening is located on the lower bottom surface of the housing;

[0011] The energy storage battery pack is provided with two connecting terminals, the two connecting terminals include a first connecting terminal and a second connecting terminal, and the first connecting terminal and the second connecting terminal are both electrically connected to the battery module;

[0012] The first connection terminal is provided at the first opening, and after the first connection terminal is connected to the second connection terminal corresponding to the upper energy storage battery pack, the energy storage battery pack and the upper energy storage battery pack are connected in parallel for capacity expansion;

[0013] The second connection terminal is disposed at the second opening. After the second connection terminal is connected to the first connection terminal corresponding to the lower energy storage battery pack, the energy storage battery pack and the lower energy storage battery pack are parallel-connected for capacity expansion.

[0014] In this way, the first opening and the second opening are respectively arranged on the upper top surface and the lower bottom surface of the shell. When multiple energy storage battery packs need to be connected in parallel to expand the capacity, it can be achieved by stacking the multiple energy storage battery packs, which is conducive to reducing the difficulty of connecting the energy storage battery packs in parallel.

[0015] In certain embodiments, the first opening is located on the upper top surface of the outer shell, the second opening is located on the lower bottom surface of the outer shell, the first opening protrudes outward to form a protrusion, and the first opening is configured so that when the energy storage battery pack is connected in parallel with the upper energy storage battery pack for capacity expansion, the protrusion of the first opening is inserted into the second opening of the upper energy storage battery pack.

[0016] In this way, the first opening and the second opening of two adjacent energy storage battery packs can cooperate with each other to facilitate the connection of the two adjacent energy storage battery packs.

[0017] In some embodiments, the waterproof component includes a first waterproof component and a second waterproof component, the first waterproof component is used to seal the first opening, and the second waterproof component is used to seal the second opening.

[0018] In this way, the first waterproof member and the second waterproof member are provided for the first opening and the second opening, respectively, so as to seal the first opening and the second opening.

[0019] In some embodiments, the receiving groove includes a first receiving groove and a second receiving groove, the first receiving groove is used to place the first waterproof component, and the second receiving groove is used to place the second waterproof component.

[0020] In this way, two receiving grooves are provided for placing the first waterproof component and the second waterproof component respectively, so as to facilitate the storage and use of the first waterproof component and the second waterproof component.

[0021] In some embodiments, the first receiving groove and the second receiving groove are located on the upper top surface of the housing.

[0022] In this way, the first accommodating groove and the second accommodating groove are both arranged on the upper top surface of the housing to facilitate taking out the first waterproof component and the second waterproof component.

[0023] In some embodiments, the first receiving groove and the second receiving groove are located on the lower bottom surface of the housing.

[0024] In this way, the first receiving groove and the second receiving groove are both arranged on the lower bottom surface of the housing to facilitate taking out the first waterproof component and the second waterproof component.

[0025] In some embodiments, one of the first accommodating groove and the second accommodating groove is disposed on the upper top surface of the housing, and the other is disposed on the lower bottom surface of the housing.

[0026] In this way, the first accommodating groove and the second accommodating groove are respectively arranged on corresponding surfaces of the two energy storage battery packs.

[0027] In some embodiments, the first waterproof component is a waterproof cover, and the second waterproof component is a waterproof plug.

[0028] In this way, the first waterproof component and the second waterproof component are respectively used to seal two different openings.

[0029] In some embodiments, the first waterproof component includes a first bottom plate and a first flange, the first flange is disposed around the first bottom plate, and the first flange is configured to be sleeved on the protruding portion to cover the first opening.

[0030] Thus, when in use, the first waterproof component covers the protruding portion to close the first opening, thereby sealing the housing.

[0031] In some embodiments, a first boss adapted to the first waterproof component is provided in the middle of the first receiving groove, and the first waterproof component is sleeved on the first boss to be clamped in the first receiving groove.

[0032] In this way, when the first waterproof component is stored, the first boss is used to support the first waterproof component to prevent the first waterproof component from being deformed and affecting the sealing effect due to collision by external force when the first waterproof component is stored.

[0033] In some embodiments, first avoidance portions are formed on both sides of the first boss.

[0034] In this way, the air pressure in the first waterproof component can be balanced, and a vacuum is avoided between the first boss and the first waterproof component, which makes it difficult to remove the first waterproof component.

[0035] In some embodiments, the housing further forms first avoidance grooves located on both sides of the first accommodating groove.

[0036] In this way, the first avoidance groove is used for the user to insert his finger to facilitate the removal of the first waterproof component.

[0037] In some embodiments, the second waterproof component includes a second base plate and a second flange, the second flange is disposed on the second base plate and an edge of the second base plate extends out of the second flange, and the second flange is configured to cover the second opening when the second base plate is sleeved on the second connecting terminal.

[0038] Thus, when in use, the second flange cooperates with the connecting terminal to fix the second waterproof component, and the second bottom plate covers the second opening to seal the housing.

[0039] In some embodiments, a second boss corresponding to the second waterproof component is provided in the middle of the second receiving groove, and the second waterproof component is sleeved on the second boss to be clamped in the second receiving groove.

[0040] In this way, the second boss is used to support the second waterproof component to prevent the second waterproof component from being deformed and affecting the sealing effect due to collision with external force when being stored.

[0041] In some embodiments, an edge of the second receiving groove is provided with an avoidance step for avoiding the second bottom plate.

[0042] In this way, the second bottom plate is immersed in the second avoidance groove, which is beneficial to protecting the sealed bottom plate.

[0043] In some embodiments, two oppositely disposed second avoidance grooves are provided on a surface of the second bottom plate away from the second flange.

[0044] In this way, the second avoidance groove is used for the user to insert his finger to facilitate the removal of the second waterproof component.

[0045] In some embodiments, when the waterproof component is placed in the receiving groove, the waterproof component is immersed in the receiving groove or one side of the waterproof component is flush with the outer surface of the receiving groove.

[0046] In this way, the waterproof component will be more beautiful after being stored, and will not affect the connection between the additional battery pack and the main battery pack.

[0047] Additional aspects and advantages of the embodiments of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the embodiments of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0049] Figure 1 is a schematic structural diagram of an energy storage battery pack according to an embodiment of the present application;

[0050] Figure 2 It is a schematic diagram of the structure of multiple stacked energy storage battery packs according to an embodiment of the present application;

[0051] Figure 3 is a cross-sectional view of an energy storage battery pack according to an embodiment of the present application;

[0052] Figure 4 It is a schematic structural diagram of a receiving slot of an energy storage battery pack according to an embodiment of the present application;

[0053] Figure 5 It is a schematic structural diagram of a first waterproof component of an energy storage battery pack according to an embodiment of the present application;

[0054] Figure 6 It is a schematic structural diagram of the second waterproof component of the energy storage battery pack according to the embodiment of the present application.

[0055] Description of main component symbols: energy storage battery pack 1000, main battery pack 1001, power pack 1002, shell assembly 100, shell 10, opening 11, first opening 111, protrusion 1111, second opening 112, accommodating groove 12, first accommodating groove 121, first boss 1211, first avoidance portion 1212, first avoidance groove 1213, second accommodating groove 122, second boss 1221, avoidance step 1222, upper top surface 13, lower bottom surface 14, waterproof component 20, first waterproof component 21, first bottom plate 211, first flange 212, second waterproof component 22, second bottom plate 221, second avoidance groove 2211, second flange 222, battery module 200, connecting terminal 300, first connecting terminal 301, second connecting terminal 302. DETAILED DESCRIPTION

[0056] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limitations on the present application. In the description of the present application, it is necessary to understand that the orientation or position relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc. is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0057] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection. It can be a mechanical connection or an electrical connection. It can be directly connected or indirectly connected through an intermediate medium. It can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0058] In the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0059] The disclosure of this article provides many different embodiments or examples to realize the different structures of the present application. In order to simplify the disclosure of the present application, the parts and settings of specific examples are described herein. Of course, they are only examples, and the purpose is not to limit the present application. In addition, the present application can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplification and clarity, and does not indicate the relationship between the various embodiments and / or settings discussed in itself. In addition, the various specific processes and examples of materials provided by the present application, but those of ordinary skill in the art can be aware of the application of other processes and / or the use of other materials.

[0060] With the vigorous promotion of green and clean energy, especially in European and American countries and regions, more and more energy storage systems are entering households, which can provide green and clean electricity for households. Balcony photovoltaic energy storage system, also known as small household green power system, is one of the important products of energy storage system. It can be installed in balconies, courtyards and garages. At the same time, it is small in size and relatively light in weight, with good mobility and convenient to carry. It is also suitable for a variety of outdoor electricity scenarios. Balcony photovoltaic energy storage system usually includes solar panels and energy storage battery packs. The electricity generated by photovoltaic power generation through solar panels can be stored in the energy storage battery pack, and the energy storage battery pack then supplies power to various electrical equipment. The product form of the energy storage battery pack consists of a main battery pack and a power-up pack, and the number of power-up packs can be increased according to the user's electricity demand. The main battery pack and the power-up pack are stacked and connected through the connection terminals between the main battery pack and the power-up pack or the connection terminals between the power-up pack and the power-up pack to achieve smooth expansion, for example, from 2 kWh to 10 kWh. Due to waterproof requirements, the main battery pack and the power-up pack will be equipped with waterproof plugs or waterproof covers on the connection terminals between the main battery pack and the power-up pack, and between the power-up pack and the power-up pack when they leave the factory, so as to prevent water from entering the connection terminals and causing damage to the battery pack. However, in some scenarios, such as household power scenarios, when users need to expand the capacity of the energy storage battery pack, they need to remove the waterproof plugs on the connection terminals of the main battery pack and the waterproof covers on the connection terminals of the power-up pack, and then stack the main battery pack and the power-up pack so that the connection terminals of the main battery pack and the connection terminals on the power-up pack are connected to achieve capacity expansion. However, after the waterproof plugs and waterproof covers are removed, they are not used again for a long time and are easily forgotten or even lost by users. In other scenarios, such as outdoor power scenarios, users need to take out the main battery pack and carry it outdoors for use. However, if the waterproof plug of the main battery pack is lost, the connection terminals of the main battery pack will be exposed, and the waterproof function of the main battery pack will be destroyed, thereby increasing the risk of damage to the main battery pack. Similarly, the same problem will occur if the waterproof plug or waterproof cover of the power-up pack is lost. Therefore, the existing stacked energy storage power supply system lacks a better anti-lost storage design for the waterproof plug and the waterproof cover.

[0061] See also Figures 1 to 3The energy storage battery pack 1000 of the embodiment of the present application includes a housing assembly 100, a battery module 200 and a connecting terminal 300. The housing assembly 100 includes a housing 10 and a waterproof component 20. The housing 10 has an opening 11, and the waterproof component 20 is used to seal the opening 11. The battery module 200 is arranged in the housing 10. The connecting terminal 300 is electrically connected to the battery module 200, and the connecting terminal 300 is arranged at the opening 11. After the connecting terminal 300 is connected to the corresponding connecting terminal 300 of another energy storage battery pack 1000, the energy storage battery pack 1000 and the other energy storage battery pack 1000 are paralleled to expand the capacity. The housing 10 is also formed with at least one accommodating groove 12, and the accommodating groove 12 is used to accommodate the waterproof component 20 of the energy storage battery pack 1000 or the waterproof component 20 of another energy storage battery pack 1000. It should be understood that the receiving groove 12 can be used to accommodate the waterproof component of any energy storage battery pack 1000. For example, if three energy storage battery packs 1000 are stacked up and down, the receiving groove 12 in one of the energy storage battery packs 1000 can be used to place the waterproof component 20 of any one of the three energy storage battery packs 1000.

[0062] The energy storage battery pack 1000 provided in the embodiment of the present application can place the removed waterproof component 20 in the receiving groove 12 for storage when several energy storage battery packs 1000 are connected in parallel for capacity expansion through the connection terminal 300, so as to avoid the waterproof component 20 being lost due to lack of storage space during use. When disconnecting and connecting for capacity expansion, the waterproof component 20 can be taken out of the receiving groove 12 and the opening 11 can be resealed to avoid water intrusion and damage to the energy storage battery pack 1000.

[0063] For details, please refer to Figure 2 The energy storage battery pack 1000 is divided into a main battery pack 1001 and a power-up pack 1002. The main battery pack 1001 can be stacked with multiple power-up packs 1002. Adjacent battery packs are connected via connection terminals 300, wherein the main battery pack 1001 is located at the top of the stacked battery packs. In the embodiment of the present application, the energy storage battery pack 1000 mainly refers to the power-up pack 1002.

[0064] In some embodiments, the main battery pack 1001 includes an inverter and a battery module, wherein the inverter is used to convert the DC power stored in the battery module into AC power for use by electrical equipment, and can also be used to convert the mains power into DC power for charging the battery module, and can also be used to convert the DC power generated by the solar panel into voltage for charging the battery module. The power-up pack 1002 includes a battery module, and after the main battery pack 1001 and at least one power-up pack 1002 are stacked, the adjacent battery packs are connected through the connection terminal 300, so that the battery pack modules in the main battery pack 1001 and at least one power-up pack 1002 can be electrically connected, thereby realizing the expansion of the electric capacity, for example, from 2 kWh to 10 kWh, etc., and the inverter in the main battery pack 1001 can charge and discharge the battery modules in the main battery pack 1001 and at least one power-up pack 1002 at the same time.

[0065] See also Figure 3 In some embodiments, the housing 10 has two openings 11, the two openings 11 include a first opening 111 and a second opening 112, the first opening 111 is located on the upper top surface 13 of the housing 10, and the second opening 112 is located on the lower bottom surface 14 of the housing 10;

[0066] The energy storage battery pack 1000 is provided with two connection terminals 300 , the two connection terminals 300 include a first connection terminal 301 and a second connection terminal 302 , and the first connection terminal 301 and the second connection terminal 302 are both electrically connected to the battery module 200 ;

[0067] The first connection terminal 301 is provided at the first opening 111. After the first connection terminal 301 is connected to the second connection terminal 302 corresponding to the upper energy storage battery pack 1000, the energy storage battery pack 1000 and the upper energy storage battery pack 1000 are parallel-connected for capacity expansion;

[0068] The second connection terminal 302 is disposed at the second opening 112 . After the second connection terminal 302 is connected to the first connection terminal 301 corresponding to the lower energy storage battery pack 1000 , the energy storage battery pack 1000 and the lower energy storage battery pack 1000 are parallel-connected for capacity expansion.

[0069] In this way, the first opening 111 and the second opening 112 are respectively arranged on the upper top surface 13 and the lower bottom surface 14 of the outer shell 10. When multiple energy storage battery packs 1000 need to be connected in parallel to expand the capacity, it can be achieved by stacking the multiple energy storage battery packs 1000, which is beneficial to reduce the difficulty of connecting the energy storage battery packs 1000 in parallel.

[0070] Specifically, in the embodiment of the present application, the first opening 111 and the second opening 112 are located on the same straight line in the vertical direction, and correspondingly, the first connection terminal 301 and the second connection terminal 302 are also located on the same straight line in the vertical direction. In this way, the energy storage battery pack 1000 can be stacked more neatly when stacked and connected.

[0071] In other embodiments, if the energy storage battery pack 1000 is a main battery pack 1001 , only one opening 11 may be provided thereon. The opening 11 is located at the bottom of the main battery pack 1001 , and the connection terminal 300 is located in the opening 11 .

[0072] In some embodiments, the first opening 111 is located on the upper top surface 13 of the outer shell 10, and the second opening 112 is located on the lower bottom surface 14 of the outer shell 10. The first opening 111 protrudes outward to form a protrusion 1111. The first opening 111 is configured so that when the energy storage battery pack 1000 is parallel-connected with the upper energy storage battery pack 1000 for capacity expansion, the protrusion 1111 of the first opening 111 is inserted into the second opening 112 of the upper energy storage battery pack 1000.

[0073] In this way, the first opening 111 and the second opening 112 of two adjacent energy storage battery packs 1000 can cooperate with each other to facilitate the connection of the two adjacent energy storage battery packs 1000 .

[0074] Specifically, in the embodiment of the present application, the first connection terminal 301 is located in the protrusion 1111 , and when the energy storage battery pack 1000 is parallel-connected with the energy storage battery pack 1000 above for capacity expansion, the second connection terminal 302 of the energy storage battery pack 1000 above extends into the protrusion 1111 and is connected to the first connection terminal 301 .

[0075] It should be noted that the protrusion 1111 cannot be set at the second opening 112. When the protrusion 1111 is set at the second opening 112, since the second opening 112 is set on the lower bottom surface 14 of the outer shell 10, the energy storage battery pack 1000 at the bottom cannot be placed horizontally, so that the energy storage battery packs 1000 cannot be stacked.

[0076] See also Figure 1 In some embodiments, the waterproof component 20 includes a first waterproof component 21 and a second waterproof component 22 . The first waterproof component 21 is used to seal the first opening 111 , and the second waterproof component 22 is used to seal the second opening 112 .

[0077] In this way, the first waterproof member 21 and the second waterproof member 22 are respectively provided for the first opening 111 and the second opening 112 so as to seal the first opening 111 and the second opening 112 .

[0078] Specifically, in the embodiment of the present application, there are two waterproof components 20, and the two waterproof components 20 are not the same. In other embodiments, when the energy storage battery pack 1000 is a main battery pack 1001, only one waterproof component 20 may be provided.

[0079] In some embodiments, the receiving groove 12 includes a first receiving groove 121 and a second receiving groove 122 . The first receiving groove 121 is used to place the first waterproof component 21 , and the second receiving groove 122 is used to place the second waterproof component 22 .

[0080] In this way, two receiving grooves 12 are provided for placing the first waterproof component 21 and the second waterproof component 22 respectively, so as to facilitate the storage and use of the first waterproof component 21 and the second waterproof component 22 .

[0081] Specifically, in the embodiment of the present application, since the two waterproof components 20 are not the same, the specifications of the corresponding first receiving groove 121 and the second receiving groove 122 are also different. Therefore, the first waterproof component 21 and the second waterproof component 22 cannot be interchanged.

[0082] In other embodiments, the first receiving groove 121 and the second receiving groove 122 may also be configured as a receiving cavity in which the shapes of the first waterproof component 21 and the second waterproof component 22 can be ignored. In this case, the first waterproof component 21 and the second waterproof component 22 can be placed and stored interchangeably.

[0083] See also Figure 1 In some embodiments, the first receiving groove 121 and the second receiving groove 122 are located on the upper top surface 13 of the housing 10 .

[0084] In this way, the first receiving groove 121 and the second receiving groove 122 are both disposed on the upper top surface 13 of the housing 10 to facilitate access to the first waterproof component 21 and the second waterproof component 22 .

[0085] Specifically, in the embodiment of the present application, the first accommodating groove 121 and the second accommodating groove 122 can be located on the upper top surface 13 of the outer shell 10. When in use, the energy storage battery pack 1000 located on the upper side can be removed to immediately see the first waterproof component 21 and the second waterproof component 22 stored on the upper top surface 13 of the energy storage battery pack 1000 located on the lower side.

[0086] In some embodiments, the first receiving groove 121 and the second receiving groove 122 are located on the lower bottom surface 14 of the housing 10 .

[0087] In this way, the first receiving groove 121 and the second receiving groove 122 are both disposed on the lower bottom surface 14 of the housing 10 to facilitate access to the first waterproof component 21 and the second waterproof component 22 .

[0088] Specifically, in some embodiments, the first accommodating groove 121 and the second accommodating groove 122 can also be located on the lower top surface of the outer shell 10. When in use, after removing the energy storage battery pack 1000 located above, the first waterproof component 21 and the second waterproof component 22 stored under the removed energy storage battery pack 1000 can be taken out.

[0089] In some embodiments, one of the first receiving groove 121 and the second receiving groove 122 is disposed on the upper top surface 13 of the housing 10 , and the other is disposed on the lower bottom surface 14 of the housing 10 .

[0090] In this way, the first receiving groove 121 and the second receiving groove 122 are respectively disposed on corresponding surfaces of the two energy storage battery packs 1000 .

[0091] Specifically, in some embodiments, the first accommodating groove 121 and the second accommodating groove 122 can also be respectively arranged on the upper top surface 13 of the outer shell 10 and the lower bottom surface 14 of the outer shell 10. In this case, the first accommodating groove 121 is arranged on the upper top surface 13 and is close to the first opening 111, and the second accommodating groove 122 is arranged on the lower bottom surface 14 and is close to the second opening 112. In this way, it is easier to find the waterproof component 20 corresponding to the opening 11 during use.

[0092] In some embodiments, the first waterproof component 21 is a waterproof cover, and the second waterproof component 22 is a waterproof plug.

[0093] In this way, the first waterproof component 21 and the second waterproof component 22 are respectively used to seal two different openings 11 .

[0094] Specifically, in the embodiment of the present application, since the first opening 111 is provided with a protrusion 1111, the first waterproof component 21 is a waterproof cover that can be covered on the protrusion 1111. The second opening 112 is in the shape of an inwardly recessed groove, so the second waterproof component 22 is a waterproof plug that can be inserted into the second opening 112.

[0095] In other embodiments, the structures of the first waterproof component 21 and the second waterproof component 22 may also be selected according to actual needs, which will not be elaborated herein.

[0096] See also Figure 4 and Figure 5 In some embodiments, the first waterproof component 21 includes a first bottom plate 211 and a first flange 212 . The first flange 212 is disposed around the first bottom plate 211 . The first flange 212 is configured to be sleeved on the protruding portion 1111 to cover the first opening 111 .

[0097] Thus, when in use, the first waterproof component 21 covers the protruding portion 1111 to close the first opening 111 , thereby sealing the housing 10 .

[0098] Specifically, the first flange 212 is sleeved on the protruding portion 1111 so that the first bottom plate 211 covers the first opening 111, thereby making the first opening 111 meet the waterproof standard. In the embodiment of the present application, the waterproof standard is the IP65 waterproof standard.

[0099] In the embodiment of the present application, the first waterproof component 21 is an integral structure formed by integral processing, and a transition fillet is formed at the connection between the first flange 212 and the first bottom plate 211 to facilitate demolding of the first waterproof component 21. The thickness of the first flange 212 and the first bottom plate 211 is substantially the same to avoid injection defects such as shrinkage holes.

[0100] See also Figure 4 In some embodiments, a first boss 1211 adapted to the first waterproof component 21 is provided in the middle of the first receiving groove 121 , and the first waterproof component 21 is sleeved on the first boss 1211 and thus clamped in the first receiving groove 121 .

[0101] In this way, when the first waterproof component 21 is stored, the first boss 1211 is used to support the first waterproof component 21 to prevent the first waterproof component 21 from being deformed and affecting the sealing effect due to collision by external force when the first waterproof component 21 is stored.

[0102] Specifically, in the embodiment of the present application, the first boss 1211 and the first waterproof component 21 are interference fit, so that the first waterproof component 21 can be more firmly fixed when stored to prevent it from falling off easily.

[0103] A transition fillet is formed on the top edge of the first boss 1211 , and the transition fillet can play a guiding role, making it easier to buckle the first waterproof component 21 on the first boss 1211 .

[0104] In some embodiments, first avoidance portions 1212 are formed on both sides of the first boss 1211 .

[0105] In this way, the air pressure in the first waterproof component 21 can be balanced to avoid vacuum between the first boss 1211 and the first waterproof component 21, which makes it difficult to remove the first waterproof component 21.

[0106] Specifically, in the embodiment of the present application, since the first boss 1211 and the first waterproof component 21 are interference fit, when the first waterproof component 21 is buckled on the first boss 1211, if the first avoidance portion 1212 is not provided at this time, a sealed space will be formed between the first waterproof component 21 and the first boss 1211. When the first waterproof component 21 is buckled on the first boss 1211, a negative pressure will be formed between the first waterproof component 21 and the first boss 1211, so that the first waterproof component 21 cannot be removed from the first boss 1211. Therefore, the first avoidance portion 1212 is provided, so that the sealed space cannot be formed between the first waterproof component 21 and the first boss 1211, so that the first waterproof component 21 can be easily removed from the first boss 1211.

[0107] In other embodiments, when the first boss 1211 and the first waterproof component 21 are in transition fit or clearance fit, the first avoidance portions 1212 may not be provided on both sides of the first boss 1211 .

[0108] In some embodiments, the housing 10 is further formed with first avoidance grooves 1213 located on both sides of the first accommodating groove 121 .

[0109] In this way, the first avoidance groove 1213 is used for the user to insert his finger to facilitate the removal of the first waterproof component 21.

[0110] Specifically, in the embodiment of the present application, the first avoidance groove 1213 is semicircular, and the depth of the first avoidance groove 1213 is less than or equal to the first accommodating groove 121. When the first waterproof component 21 needs to be removed from the first boss 1211, fingers can be inserted into the first avoidance groove 1213 to pinch the two side edges of the first waterproof component 21, thereby easily removing the first waterproof component 21 from the first boss 1211.

[0111] See also Figure 4 and Figure 6 In some embodiments, the second waterproof component 22 includes a second bottom plate 221 and a second flange 222, the second flange 222 is arranged on the second bottom plate 221 and the edge of the second bottom plate 221 extends out of the second flange 222, and the second flange 222 is configured to be sleeved on the second connecting terminal 302, and the second bottom plate 221 covers the second opening 112.

[0112] Thus, when in use, the second flange 222 cooperates with the connection terminal 300 to fix the second waterproof component 22 , and the second bottom plate 221 covers the second opening 112 to seal the housing 10 .

[0113] Specifically, the second flange 222 extends out from the edge of the second base plate 221 to better seal the second opening 112. The second flange 222 is sleeved on the protrusion 1111 so that the second base plate 221 covers the second opening 112, thereby making the second opening 112 meet the waterproof standard. In the embodiment of the present application, the waterproof standard is the IP65 waterproof standard.

[0114] In the embodiment of the present application, the second waterproof component 22 is an integral structure formed by integral processing, and a transition fillet is formed at the connection between the second flange 222 and the second bottom plate 221 to facilitate demolding of the second waterproof component 22. The thickness of the second flange 222 and the second bottom plate 221 is substantially the same to avoid injection defects such as shrinkage holes.

[0115] An elastic member is sleeved on the outer side of the second flange 222 ; the elastic member can fix the second waterproof component 22 on the second opening 112 , and at the same time, the elastic member can enhance the waterproof effect of the second waterproof component 22 .

[0116] Optionally, the elastic member may be made of rubber, silicone, elastic plastic or other materials with a certain degree of elasticity.

[0117] The elastic member includes a plurality of inverted rings, and the plurality of inverted rings are arranged along the axial direction of the second flange 222. In this way, the plurality of inverted rings form a plurality of waterproof structures, further improving the waterproof effect of the second waterproof component 22.

[0118] Specifically, the inverted ring is arranged on the outer surface of the elastic member, the inverted ring is tilted downward, and the angle formed by the inverted ring and the horizontal plane is about 30°. In the embodiment of the present application, the number of inverted rings is two, and the two inverted rings are distributed along the axial direction of the second flange 222. Furthermore, the thickness of the inverted ring should not be too thin. An inverted ring that is too thin has a poor sealing effect and is easily damaged. The thickness of the inverted ring should not be too thick. An inverted ring that is too thick has poor elasticity, which is not conducive to the installation and disassembly of the second waterproof component 22.

[0119] In some embodiments, a second boss 1221 corresponding to the second waterproof component 22 is provided in the middle of the second receiving groove 122 , and the second waterproof component 22 is sleeved on the second boss 1221 and thus clamped in the second receiving groove 122 .

[0120] In this way, the second boss 1221 is used to support the second waterproof component 22 to prevent the second waterproof component 22 from being deformed and affecting the sealing effect due to collision by external force when being stored.

[0121] Specifically, in the embodiment of the present application, the second boss 1221 and the second waterproof component 22 are interference fit, so that the second waterproof component 22 can be more firmly fixed when stored to prevent it from falling off easily.

[0122] A transition fillet is formed on the top edge of the second boss 1221 , and the transition fillet can play a guiding role, making it easier to buckle the second waterproof component 22 on the second boss 1221 .

[0123] Furthermore, since the second boss 1221 and the second waterproof component 22 are interference fit, a second avoidance portion should be formed on both sides of the second boss 1221. The second avoidance portion can prevent a sealed space from being formed between the second waterproof component 22 and the second boss 1221, thereby facilitating the removal of the second waterproof component 22 from the second boss 1221.

[0124] In some embodiments, an edge of the second receiving groove 122 is provided with an avoidance step 1222 for avoiding the second bottom plate 221 .

[0125] In this way, the second bottom plate 221 is immersed in the second avoidance groove 2211, which is beneficial to protecting the sealing bottom plate.

[0126] Specifically, in the embodiment of the present application, in order to better seal the second opening 112, the edge of the second bottom plate 221 extends out of the second flange 222. In order to accommodate the edge of the second bottom plate 221, an avoidance step 1222 is provided around the edge of the second accommodating groove 122. When the second waterproof component 22 is provided in the second opening 112, the edge of the second bottom plate 221 can be completely embedded in the avoidance step 1222, thereby forming a seal for the second opening 112.

[0127] See also Figure 1 In some embodiments, two oppositely disposed second avoidance grooves 2211 are provided on the surface of the second bottom plate 221 away from the second flange 222 .

[0128] In this way, the second avoidance groove 2211 is used for the user to insert his finger to facilitate the removal of the second waterproof component 22 .

[0129] Specifically, in the embodiment of the present application, the second avoidance groove 2211 is semicircular, and the two straight sides of the second avoidance grooves 2211 are arranged opposite to each other. When the first waterproof component 21 needs to be removed from the first boss 1211, fingers can be inserted into the second avoidance groove 2211 to pinch the two opposite side walls of the two second avoidance grooves 2211, thereby easily removing the first waterproof component 21 from the first boss 1211.

[0130] In some embodiments, when the waterproof component 20 is placed in the receiving groove 12 , the waterproof component 20 is immersed in the receiving groove 12 or one side of the waterproof component 20 is flush with the outer surface of the receiving groove 12 .

[0131] In this way, the waterproof component 20 will be more beautiful after being stored, and will not affect the connection between the additional battery pack and the main battery pack 1001.

[0132] Specifically, in the embodiment of the present application, when the waterproof component 20 is placed in the receiving groove 12 , the outer surface of the floor of the waterproof component 20 is flush with the outer surface of the receiving groove 12 .

[0133] In other application embodiments, the depth of the receiving groove 12 may also be increased so that when the waterproof component 20 is placed in the receiving groove 12 , the waterproof component 20 can be immersed in the receiving groove 12 .

[0134] In some embodiments, a cover plate may be provided at the opening of the receiving groove 12 . When the waterproof component 20 is placed in the receiving groove 12 and immersed in the receiving groove 12 , the cover plate may be provided at the opening of the receiving groove 12 to protect the waterproof component 20 .

[0135] In the description of this specification, the description with reference to the terms "certain embodiments", "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiments or examples are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0136] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, unless otherwise clearly and specifically defined.

[0137] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application. The scope of the present application is defined by the claims and their equivalents.

Claims

1. An energy storage battery pack, characterized in that: include: A housing component, the housing component comprising a housing and a waterproof component, the housing having an opening, and the waterproof component being used to seal the opening; A battery module, wherein the battery module is disposed in the housing; A connecting terminal, the connecting terminal is electrically connected to the battery module, the connecting terminal is arranged at the opening, and after the connecting terminal is connected to a corresponding connecting terminal of another energy storage battery pack, the energy storage battery pack and the another energy storage battery pack are connected in parallel for capacity expansion; Wherein, the housing is further formed with at least one accommodating groove, and the accommodating groove is used to accommodate the waterproof component of the energy storage battery pack or the waterproof component of the other energy storage battery pack.

2. The energy storage battery pack according to claim 1, characterized in that: The shell has two openings, the two openings include a first opening and a second opening, the first opening is located on the upper top surface of the shell, and the second opening is located on the lower bottom surface of the shell; The energy storage battery pack is provided with two connecting terminals, the two connecting terminals include a first connecting terminal and a second connecting terminal, and the first connecting terminal and the second connecting terminal are both electrically connected to the battery module; The first connection terminal is provided at the first opening, and after the first connection terminal is connected to the second connection terminal corresponding to the upper energy storage battery pack, the energy storage battery pack and the upper energy storage battery pack are connected in parallel for capacity expansion; The second connection terminal is disposed at the second opening. After the second connection terminal is connected to the first connection terminal corresponding to the lower energy storage battery pack, the energy storage battery pack and the lower energy storage battery pack are parallel-connected for capacity expansion.

3. The energy storage battery pack according to claim 2, characterized in that: The first opening is located on the upper top surface of the shell, and the second opening is located on the lower bottom surface of the shell. The first opening protrudes outward to form a protrusion. The first opening is configured so that when the energy storage battery pack is connected in parallel with the upper energy storage battery pack for capacity expansion, the protrusion of the first opening is inserted into the second opening of the upper energy storage battery pack.

4. The energy storage battery pack according to claim 3, characterized in that: The waterproof component includes a first waterproof component and a second waterproof component. The first waterproof component is used to seal the first opening, and the second waterproof component is used to seal the second opening.

5. The energy storage battery pack according to claim 4, characterized in that: The receiving groove includes a first receiving groove and a second receiving groove, the first receiving groove is used to place the first waterproof component, and the second receiving groove is used to place the second waterproof component.

6. The energy storage battery pack according to claim 5, characterized in that: The first accommodating groove and the second accommodating groove are located on the upper top surface of the housing.

7. The energy storage battery pack according to claim 5, characterized in that: The first accommodating groove and the second accommodating groove are located on the lower bottom surface of the housing.

8. The energy storage battery pack according to claim 5, characterized in that: One of the first accommodating groove and the second accommodating groove is arranged on the upper top surface of the shell, and the other is arranged on the lower bottom surface of the shell.

9. The energy storage battery pack according to claim 5, characterized in that: The first waterproof component is a waterproof cover, and the second waterproof component is a waterproof plug.

10. The energy storage battery pack according to claim 9, characterized in that: The first waterproof component includes a first bottom plate and a first flange. The first flange is arranged around the first bottom plate, and the first flange is configured to be sleeved on the protruding portion to cover the first opening.

11. The energy storage battery pack according to claim 10, characterized in that: A first boss adapted to the first waterproof component is provided in the middle of the first receiving groove, and the first waterproof component is sleeved on the first boss so as to be clamped in the first receiving groove.

12. The energy storage battery pack according to claim 11, characterized in that: First avoidance portions are formed on both sides of the first boss.

13. The energy storage battery pack according to claim 10, characterized in that: The housing is further formed with first avoidance grooves located on both sides of the first accommodating groove.

14. The energy storage battery pack according to claim 9, characterized in that: The second waterproof component includes a second bottom plate and a second flange, the second flange is arranged on the second bottom plate and the edge of the second bottom plate extends out of the second flange, and the second bottom plate is configured to cover the second opening when the second flange is sleeved on the second connecting terminal.

15. The energy storage battery pack according to claim 14, characterized in that: A second boss corresponding to the second waterproof component is provided in the middle of the second receiving groove, and the second waterproof component is sleeved on the second boss so as to be clamped in the second receiving groove.

16. The energy storage battery pack according to claim 14, characterized in that: An edge of the second accommodating groove is provided with an avoidance step for avoiding the second bottom plate.

17. The energy storage battery pack according to claim 14, characterized in that: Two second avoidance grooves arranged opposite to each other are provided on the surface of the second bottom plate away from the second flange.

18. The energy storage battery pack according to claim 1, characterized in that: When the waterproof component is placed in the receiving groove, the waterproof component is immersed in the receiving groove or one side of the waterproof component is flush with the outer surface of the receiving groove.

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