Electrical connection assembly and energy storage device

Abstract

The utility model provides an electric connection assembly and an energy storage device, the energy storage device comprises a box body, the electric connection assembly comprises a socket, and the socket comprises a first grounding part; the plug can be connected with the socket in an inserted mode, the plug comprises a second grounding component, the plug and the socket can be arranged on the two adjacent box bodies respectively, the plug and the socket can electrically connect the two adjacent energy storage devices in an inserted mode, and under the condition that the plug is connected with the socket in an inserted mode, the first grounding component is in butt joint with the second grounding component; at least one of the first grounding component and the second grounding component is used for being electrically connected with the box body. The technical effects of optimizing the structure of the electric connection assembly and improving the safety and reliability of the electric connection assembly are achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to energy storage technology field, specifically, relate to a kind of electric connection assembly and energy storage device. BACKGROUND

[0002] Stacked connector is the core connecting part in energy storage system, it includes plug and socket, plug socket after contact can be used in energy storage system for the current transmission between cabinet or signal information transmission, ensure the safety and stability of energy storage system.

[0003] In the related art, stacked connector is not provided with a special grounding circuit, and a high-voltage pin is usually selected for grounding. During the plug-in connection process, high-voltage connection and grounding connection are completed synchronously.

[0004] However, the operation of synchronous high-voltage connection and grounding connection is dangerous, which leads to the technical problem of poor safety and reliability of the product. UTILITY MODEL CONTENT

[0005] The utility model aims at at least one of the technical problems existing in the prior art.

[0006] Therefore, the first aspect of the utility model provides an electric connection assembly.

[0007] The second aspect of the utility model provides an energy storage device.

[0008] Therefore, the first aspect of the utility model provides an electric connection assembly.

[0009] The present application provides an electric connection assembly for an energy storage device. The electric connection assembly can connect multiple energy storage devices together, allowing electrical signals to be transmitted between the multiple energy storage devices, thereby enabling cooperative work of the multiple energy storage devices and improving the intelligent level of the energy storage device charging and discharging process.

[0010] Specifically, the energy storage device includes a cabinet, which forms the exposed surface of the energy storage device, and the cabinet can provide positioning and protection for the structure inside the energy storage device.

[0011] The electric connection assembly comprises a plug and a socket, and each energy storage device is provided with a plug and a socket on a box body, the plug on the box body is connected with the socket on another box body to realize electric connection between the two energy storage devices, and multiple energy storage devices can be cooperatively charged and discharged.

[0012] On this basis, the socket is provided with a first grounding component, the plug is provided with a second grounding component, at least one of the first grounding component and the second grounding component is connected with the box body, and after the plug and the socket are assembled, the first grounding component or the second grounding component is connected with the box body. When the plug and the socket on the two energy storage devices are plugged together, the first grounding component and the second grounding component are connected together, so that the plug or the socket on the other energy storage device can be grounded through the first grounding component and the second grounding component.

[0013] In product production debugging, the grounding circuit is a circuit for protecting human life safety, and if there is a leakage current in the product, the current can be directly guided to the ground, so the grounding circuit is a guarantee for product safety. In the related art, the main circuit, the communication circuit and the grounding circuit are simultaneously conducted, so that there is a product leakage in the moment when the connector is conducted, and the grounding point cannot be guaranteed to be conducted at this time, and the safety of the user cannot be ensured.

[0014] To this end, at least one of the first grounding component and the second grounding component is connected with the box body, so that the electric connection assembly connects the grounding circuit with the box body through the first grounding component or the second grounding component before the circuit is connected, that is, when the product is assembled, and at this time, the product has not reached the power-on state, and there is no safety hazard. And after the product is completely powered off, the grounding circuit is still connected, unless the electric connection assembly is removed from the box body, the grounding connection can be disconnected. Thus, the requirement that the grounding line is first connected and then disconnected in the safety requirement is met, the conduction state of the grounding point is ensured, and the safety of the user is ensured.

[0015] Therefore, the technical problems in the related art are solved, and the technical effects of optimizing the structure of the electric connection assembly and improving the safety and reliability of the electric connection assembly are achieved.

[0016] In addition, the electric connection assembly provided by the utility model can also have the following additional technical features:

[0017] In some technical solutions of the utility model, the first grounding component is used to electrically connect the box body.

[0018] In the technical solution, the first grounding component on the socket is connected with the box body, thereby forming a grounding circuit between the socket and the box body, so that the electric connection assembly completes the grounding connection at the same time as being installed on the box body.

[0019] Correspondingly, the second grounding component on the plug is not directly connected with the box body, when the socket on the first energy storage device is plugged with the plug on another energy storage device, the plug connects the box body of the first energy storage device through the second grounding component and the first grounding component connected together, to complete the grounding connection of the plug.

[0020] Therefore, the plug and the socket can form a complete grounding loop when multiple energy storage devices are connected together, avoiding the user from being injured due to the problem of electric leakage, thereby realizing the technical effects of improving the safety and reliability of the electrical connection assembly.

[0021] In some technical solutions of the utility model, optionally, the electrical connection assembly further comprises: a fixing component, the fixing component is arranged on the socket, and the fixing component is made of conductive material, the fixing component is used for fixing the socket on the box body, and the first grounding component is connected with the fixing component.

[0022] In the technical solution, the electrical connection assembly further comprises a fixing component arranged on the socket, the fixing component can be connected with the box body, and after the connection is completed, the fixing component can fix the socket on the box body, so that the socket can be accurately positioned at the predetermined position.

[0023] On this basis, the fixing component is made of metal or other conductive material, and the first grounding component is connected with the fixing component. The fixing component needs to be in direct contact with the box body, and when the fixing component is connected with the box body, the first grounding component is connected with the box body through the fixing component, thereby forming a grounding loop, so that the current on the socket can be directly guided to the ground through the first grounding component, the fixing component and the box body.

[0024] Therefore, the fixing component in contact with the box body is reasonably utilized, and the fixing component is used as a part of the grounding loop, thereby realizing the technical effects of reducing the structural complexity of the electrical connection assembly and reducing the production cost of the electrical connection assembly.

[0025] Specifically, the fixing component comprises a screw, a bolt or a metal buckle.

[0026] In some technical solutions of the utility model, optionally, the first grounding component comprises: a grounding female pin arranged on the socket; and a conductor connected with the grounding female pin and the fixing component.

[0027] In the technical solution, the first grounding component comprises the grounding female pin and the conductor, the grounding female pin comprises a first crimp female pin and a first wire locking female pin, the first crimp female pin and the first wire locking female pin are plugged together, and a sealing gasket is arranged between the two.

[0028] On this basis, the first end of the conductor is connected with the wire locking female pin in the grounding female pin, and the second end of the conductor is connected with the fixing component, so that a grounding loop is formed between the grounding female pin and the box body.

[0029] Specifically, the conductor is a wire.

[0030] Therefore, the socket of the application connects the grounding female pin and the conductor connecting fixing part, so that the socket is grounded when the electrical connection assembly is connected, that is, during production and assembly, thereby meeting the requirement that the grounding wire is connected first and disconnected last in the safety requirement, ensuring the conduction state of the grounding point, protecting the user safety, optimizing the structure of the electrical connection assembly, and improving the safety and reliability of the electrical connection assembly.

[0031] In some technical solutions of the application, the second grounding part comprises: a grounding male pin, which is arranged on the plug and can be connected to the grounding female pin.

[0032] In the technical solution, the second grounding part comprises the grounding male pin, the grounding male pin comprises a first crimping male pin and a first wire locking male pin, the first crimping male pin and the first wire locking male pin are inserted together, and a sealing gasket is arranged between the two.

[0033] When the plug and the socket are inserted together, the grounding male pin and the grounding female pin are connected together, so that the plug can be connected to the grounding loop through the grounding male pin and the grounding female pin, thereby completing the grounding connection of the plug while connecting the plug, and further realizing the technical effect of improving the safety and reliability of the electrical connection assembly.

[0034] In some technical solutions of the application, the energy storage device further comprises a control circuit, and the electrical connection assembly further comprises: a first signal transmission part, which is arranged on the socket and is used for connecting the control circuit; and a second signal transmission part, which is arranged on the plug and is used for connecting the control circuit, and the first signal transmission part and the second signal transmission part are electrically connected when the plug and the socket are inserted together.

[0035] In the technical solution, the energy storage device further comprises a control circuit, and the control circuit can be connected to the storage battery in the box body, thereby controlling the charging and discharging process of the storage battery.

[0036] On this basis, the socket is provided with the first signal transmission part connected with the control circuit, and the plug is provided with the second signal transmission part also connected with the control circuit. When the two energy storage devices are connected together through the plug and the socket, the control circuits of the two energy storage devices can transmit electrical signals through the first signal transmission part and the second signal transmission part, so that the multiple energy storage devices can cooperatively perform the charging and discharging work.

[0037] The first signal transmission component comprises a second crimp female pin and a second locking female pin, and the second crimp female pin and the second locking female pin are inserted together and are provided with a sealing gasket therebetween.

[0038] When the plug and the socket are inserted together, the first signal transmission component and the second signal transmission component are connected together, so that the control circuits of the two energy storage devices are connected together, and the electrical signals can be transmitted between the multiple energy storage devices, thereby meeting the cooperative working requirement of the multiple energy storage devices.

[0039] Specifically, the first signal transmission component and the second signal transmission component are each provided with three main pins capable of passing through an alternating current rated voltage of 500V and a rated current of 60A, and are also provided with pins capable of passing through a current signal of 3A, and pins for passing through high voltage and low current are reserved.

[0040] In the energy storage system, because of the existence of the expansion and external PDU (Power Distribution Unit, power distribution unit) scheme, the stacking or plugging between the cabinets is often involved.

[0041] To this end, the main loop and the signal loop of the cable in one cabinet are connected to the plug or the socket, and the main loop and the signal loop of the cable of another cabinet are connected to the counter-plug end.

[0042] Specifically, in order to cope with the multiple cabinet connection and plugging during production, debugging and installation, the plug and the socket proposed in the application can realize at least 500 times of plugging, which can meet the plugging requirement in the whole life cycle of the machine product.

[0043] Specifically, the electrical connection assembly proposed in the application supports two connection modes of wire harness and copper bar, and the connection mode can be freely selected inside the product.

[0044] In some technical solutions of the utility model, optionally, the socket comprises a slot, and the plug comprises a protruding part; in the case that the plug and the socket are inserted together, the protruding part is inserted into the slot, and the first grounding component and the second grounding component are connected together in the slot.

[0045] In the technical scheme, the socket is provided with a slot, the plug is correspondingly provided with a protruding part, the shape of the slot is matched with the shape of the protruding part, after the socket and the plug are connected, the protruding part is embedded into the slot.

[0046] Specifically, the first grounding component is arranged inside the slot, and the second grounding component is arranged inside the protruding part, and after the plug and the socket are connected, the first grounding component and the second grounding component are connected in the slot.

[0047] By arranging the slot and the protruding part, the connection precision and stability of the two energy storage devices can be improved, so that the stability of the electrical connection between the two energy storage devices is improved, and the probability of disconnection is reduced.

[0048] In some technical schemes of the utility model, optionally, the electrical connection assembly further comprises: a first sealing ring, the first sealing ring is sleeved on the protruding part, and the first sealing ring is used for sealing the gap between the protruding part and the inner wall of the slot;A second sealing ring, the second sealing ring is arranged on the socket or the plug, and the second sealing ring is used for sealing the gap between the socket and the plug outside the slot.

[0049] In the technical scheme, the first sealing ring is sleeved on the protruding part, and after the protruding part is inserted into the slot, the first sealing ring can fill the gap between the protruding part and the inner wall of the slot, thereby effectively sealing the slot, and preventing dust, water vapor and other substances affecting the stability of the electrical connection from entering the connecting space of the first grounding component and the second grounding component.

[0050] Specifically, the socket or the plug is further provided with a second sealing ring, and the second sealing ring is arranged outside the slot and the protruding part, specifically, the second sealing ring can be arranged between the clamping surfaces of the socket and the plug, and after the plug and the socket are connected, the second sealing ring can seal the gap between the plug and the socket outside the slot, thereby forming double protection with the first sealing ring, further reducing the probability of pollutants entering the connecting space of the first grounding component and the second grounding component, and thereby achieving the technical effect of improving the stability and reliability of the electrical connection assembly.

[0051] Specifically, by arranging the first sealing ring and the second sealing ring, the waterproof level (IP, Ingress Protection) of the electrical connection assembly can reach IP65.

[0052] In some technical schemes of the utility model, optionally, the electrical connection assembly further comprises: a first cover body, the first cover body is connected with the socket, and the first cover body covers the slot;A second cover body, the second cover body is connected with the plug, and the second cover body wraps the protruding part.

[0053] In the technical solution, the electric connection assembly further comprises a first cover and a second cover, the first cover is detachably connected with the socket, when the first cover is assembled to the socket, the first cover can cover the socket, thereby shielding the first grounding component inside the socket, thereby providing effective protection for the first grounding component.

[0054] Correspondingly, the second cover is detachably connected with the plug, when the second cover is assembled to the plug, the second cover can cover the protruding part, thereby shielding the second grounding component inside the protruding part, thereby providing effective protection for the second grounding component.

[0055] The second aspect of the utility model provides a kind of energy storage device, and the energy storage device includes: box;As any of the above technical solutions in electric connection assembly, socket and plug are arranged in box, one of first grounding component and second grounding component is electrically connected with box.

[0056] In the technical solution, a kind of energy storage device is limited, and the electric connection assembly in any of the above technical solutions is included in energy storage device, so the energy storage device has the advantages of the electric connection assembly in any of the above technical solutions, and can realize the technical effects that the electric connection assembly in any of the above technical solutions can realize.

[0057] Specifically, the energy storage device includes a box, which forms the exposed surface of the energy storage device, and the box can provide positioning and protection for the structures inside the energy storage device.

[0058] The electric connection assembly includes a plug and a socket, and each energy storage device has a plug and a socket on its box. The energy storage device can connect to the socket of another energy storage device through the plug on it to achieve electrical connection between the two energy storage devices, allowing multiple energy storage devices to work together for charging and discharging.

[0059] The additional aspects and advantages of the utility model will become apparent from the following description, or be understood through practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0060] The above and / or additional aspects and advantages of the utility model will become apparent and more readily understood from the following description, taken in conjunction with the accompanying drawings, in which:

[0061] Figure 1 An exploded view of a socket according to one embodiment of the utility model is shown;

[0062] Figure 2 A structural schematic diagram of an electric connection assembly according to one embodiment of the utility model is shown;

[0063] Figure 3 An exploded view of a plug according to one embodiment of the utility model is shown;

[0064] Figure 4 Fig. 1 shows a structural schematic diagram of an electrical connection assembly according to an embodiment of the present application;

[0065] Figure 5 Fig. 1 shows a structural schematic diagram of an electrical connection assembly according to an embodiment of the present application;

[0066] Figure 6 Fig. 2 shows a structural schematic diagram of an energy storage device according to an embodiment of the present application.

[0067] Correspondence between the reference signs and the component names in the drawings is as follows: Figures 1 to 6 Correspondence between the reference signs and the component names in the drawings is as follows:

[0068] 100 electrical connection assembly, 110 socket, 1102 socket, 112 first grounding component, 1122 grounding female pin, 11222 first crimped female pin, 11224 first locking female pin, 1124 conductor, 114 fixing component, 116 first signal transmission component, 1162 second crimped female pin, 1164 second locking female pin, 1166 first extension pin, 118 first cover body, 119 gland, 120 plug, 1202 protruding part, 122 second grounding component, 1222 grounding male pin, 12222 first crimped male pin, 12224 first locking male pin, 124 second signal transmission component, 1242 second crimped male pin, 1244 second locking male pin, 1246 second extension pin, 126 first sealing ring, 128 second sealing ring, 129 second cover body, 200 energy storage device, 210 box body, 230 control circuit, 240 storage battery. DETAILED DESCRIPTION

[0069] In order to more clearly understand the above objectives, features and advantages of the present application, the present application will be further described in detail below with reference to the drawings and specific embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0070] In the following description, many specific details are set forth in order to provide a thorough understanding of the present application, however, the present application can be practiced in other ways different from those described herein, therefore, the scope of protection of the present application is not limited by the specific embodiments disclosed below.

[0071] The following description refers to the accompanying drawings, which illustrate preferred embodiments of the present application. Figures 1 to 6 The electrical connection assembly and the energy storage device according to some embodiments of the present application are described below.

[0072] As Figure 1 , Figure 3 and Figure 6As shown, one embodiment of the utility model discloses an electric connection assembly 100, and the electric connection assembly 100 is used for energy storage device 200, and the energy storage device 200 includes box 210, and the electric connection assembly 100 includes: socket 110, socket 110 includes first ground component 112;Plug 120, plug 120 can be inserted with socket 110, and plug 120 includes second ground component 122, and plug 120 and socket 110 can be arranged on two adjacent boxes 210 respectively, and plug 120 and socket 110 can be electrically connected with two adjacent energy storage devices 200 by inserting, and when plug 120 is connected with socket 110, first ground component 112 and second ground component 122 are docked;Wherein, at least one of first ground component 112 and second ground component 122 is used to electrically connect box 210.

[0073] The application provides an electric connection assembly 100, and the electric connection assembly 100 is used for energy storage device 200, and the electric connection assembly 100 can connect multiple energy storage devices 200 together, so that electric signals can be transmitted between the multiple energy storage devices 200, thereby realizing the cooperative work of the multiple energy storage devices 200 and improving the intelligent degree of the charging and discharging process of the energy storage device 200.

[0074] Specifically, the energy storage device 200 includes a box 210, and the box 210 forms an exposed surface of the energy storage device 200, and the box 210 can provide positioning and protection for the structure in the energy storage device 200.

[0075] The electric connection assembly 100 includes a plug 120 and a socket 110, and the box 210 of each energy storage device 200 is provided with one plug 120 and one socket 110, and the box 210 can be connected to the socket 110 on another box 210 through the plug 120 thereon, so as to realize the electrical connection between the two energy storage devices 200 and enable the multiple energy storage devices 200 to cooperatively perform charging and discharging work.

[0076] On this basis, the socket 110 is provided with a first ground component 112, the plug 120 is provided with a second ground component 122, and at least one of the first ground component 112 and the second ground component 122 is connected to the box 210, so that the first ground component 112 or the second ground component 122 is connected to the box 210 after the assembly of the plug 120 and the socket 110 is completed. And when the plug 120 and the socket 110 on the two energy storage devices 200 are inserted together, the first ground component 112 and the second ground component 122 are docked together, so that the plug 120 or the socket 110 on the other energy storage device 200 can be grounded through the first ground component 112 and the second ground component 122.

[0077] In product production debugging, the grounding loop is a loop for protecting human life safety. If the product has a leakage, the current can be directly guided to the ground, so the grounding loop is a guarantee for product safety. In the related art, the main loop, the communication loop and the grounding loop are simultaneously conducted. In this way, there is a product leakage in the moment when the connector is conducted. The grounding point cannot be guaranteed to be conducted at this time, and the safety of the user cannot be ensured.

[0078] To this end, the first grounding component 112 and the second grounding component 122 are connected with the box 210, so that the electrical connection assembly 100 connects the grounding loop with the box 210 through the first grounding component 112 or the second grounding component 122 before the circuit is connected, that is, when the product is assembled. At this time, it has not reached the power-on state, and there is no safety hazard. Moreover, after the product is completely powered off, the grounding loop is still connected. Unless the electrical connection assembly 100 is removed from the box 210, the grounding connection can be disconnected. Thus, the requirement that the grounding line is first conducted and then disconnected in the safety requirement is met, the conduction state of the grounding point is ensured, and the safety of the user is guaranteed.

[0079] Therefore, the technical problems in the related art are solved, and the technical effects of optimizing the structure of the electrical connection assembly 100 and improving the safety and reliability of the electrical connection assembly 100 are achieved.

[0080] As shown in Figure 6 , in some embodiments of the utility model, the first grounding component 112 is used for connecting the box 210.

[0081] In this embodiment, the first grounding component 112 on the socket 110 is connected with the box 210, so as to form a grounding loop between the socket 110 and the box 210, so that the electrical connection assembly 100 completes the grounding connection at the same time of being installed to the box 210.

[0082] Correspondingly, the second grounding component 122 on the plug 120 is not directly connected with the box 210. When the socket 110 on the first energy storage device 200 is plugged with the plug 120 on another energy storage device 200, the plug 120 connects the box 210 of the first energy storage device 200 through the second grounding component 122 and the first grounding component 112 that are plugged together, so as to complete the grounding connection of the plug 120.

[0083] Therefore, the plug 120 and the socket 110 of the present application can form a complete grounding loop when multiple energy storage devices 200 are connected together, avoiding the user from being injured due to the leakage problem, and achieving the technical effect of improving the safety and reliability of the electrical connection assembly 100.

[0084] As shown in Figure 1 , Figure 2 , andFigure 6 As shown, in some embodiments of the present invention, optionally, the electrical connection assembly 100 further includes: a fixing component 114, which is disposed on the socket 110 and is made of conductive material. The fixing component 114 is used to fix the socket 110 to the housing 210, and the first grounding component 112 is connected to the fixing component 114.

[0085] In this embodiment, the electrical connection assembly 100 further includes a fixing component 114, which is disposed on the socket 110. The fixing component 114 can be connected to the housing 210. After the connection is completed, the fixing component 114 can fix the socket 110 on the housing 210, so that the socket 110 can be accurately positioned in a predetermined position.

[0086] Based on this, the fixing component 114 is made of conductive materials such as metal, and the first grounding component 112 is connected to the fixing component 114. The fixing component 114 needs to be in direct contact with the enclosure 210. When the fixing component 114 is connected to the enclosure 210, the first grounding component 112 is connected to the enclosure 210 through the fixing component 114, thus forming a grounding loop. This allows the current on the socket 110 to be directly conducted to the ground through the first grounding component 112, the fixing component 114, and the enclosure 210.

[0087] It can be seen that this application makes reasonable use of the fixing component 114 of the contact box 210, so that the fixing component 114 is part of the grounding circuit, thereby achieving the technical effect of reducing the structural complexity of the electrical connection component 100 and reducing the production cost of the electrical connection component 100.

[0088] Specifically, the fixing component 114 includes screws, bolts, or metal clips.

[0089] like Figure 1 , Figure 2 and Figure 5 As shown, in some embodiments of the present invention, optionally, the first grounding component 112 includes: a grounding female pin 1122, which is disposed in the socket 110; and a conductor 1124, which connects the grounding female pin 1122 and the fixing component 114.

[0090] In this embodiment, the first grounding component 112 includes a grounding female pin 1122 and a conductor 1124. The grounding female pin 1122 includes a first crimping female pin 11222 and a first locking female pin 11224. The first crimping female pin 11222 and the first locking female pin 11224 are inserted together, and a sealing gasket is provided between them.

[0091] On this basis, the first end of the conductor 1124 is connected with the locking wire female pin in the ground female pin 1122, and the second end of the conductor 1124 is connected with the fixing component 114, so that the ground loop is formed between the ground female pin 1122 and the box 210.

[0092] Specifically, the conductor 1124 is a wire.

[0093] Therefore, the socket 110 is connected with the fixing component 114 through the ground female pin 1122 and the conductor 1124, so that the socket 110 is grounded when the electrical connection assembly 100 is connected before the circuit is connected, that is, when the production is assembled, thereby meeting the requirement that the grounding wire is first connected and then disconnected in the safety requirement, ensuring the conduction state of the grounding point, protecting the user safety, optimizing the structure of the electrical connection assembly 100, and improving the safety and reliability of the electrical connection assembly 100.

[0094] As shown in Figure 3 and Figure 4 , in some embodiments of the utility model, optionally, the second grounding component 122 includes: a grounding male pin 1222, the grounding male pin 1222 is arranged in the plug 120, and the grounding male pin 1222 can be docked with the ground female pin 1122.

[0095] In this embodiment, the second grounding component 122 includes the grounding male pin 1222, the grounding male pin 1222 includes the first crimp male pin 12222 and the first locking wire male pin 12224, the first crimp male pin 12222 and the first locking wire male pin 12224 are inserted together, and a sealing gasket is arranged between the two.

[0096] When the plug 120 and the socket 110 are inserted together, the grounding male pin 1222 and the ground female pin 1122 are docked together, so that the plug 120 can be connected to the ground loop through the grounding male pin 1222 and the ground female pin 1122, thereby completing the grounding connection of the plug 120 while connecting the plug, and further realizing the technical effect of improving the safety and reliability of the electrical connection assembly 100.

[0097] As shown in Figure 1 , Figure 3 and Figure 6 , in some embodiments of the utility model, optionally, the energy storage device 200 further includes a control circuit 230, and the electrical connection assembly 100 further includes: a first signal transmission component 116, the first signal transmission component 116 is arranged in the socket 110, and the first signal transmission component 116 is used for electrically connecting the control circuit 230; a second signal transmission component 124, the second signal transmission component 124 is arranged in the plug 120, and the second signal transmission component 124 is used for connecting the control circuit 230, and the first signal transmission component 116 and the second signal transmission component 124 are electrically connected in the case where the plug 120 is connected with the socket 110.

[0098] In this embodiment, the energy storage device 200 further comprises a control circuit 230, which is connectable with the battery 240 in the box 210, so as to control the charging and discharging process of the battery 240.

[0099] On this basis, the socket 110 is provided with a first signal transmission component 116, which is connected with the control circuit 230, and the plug 120 is provided with a second signal transmission component 124, which is also connected with the control circuit 230. When the two energy storage devices 200 are connected together through the plug 120 and the socket 110, the control circuits 230 of the two energy storage devices 200 can transmit electrical signals through the first signal transmission component 116 and the second signal transmission component 124, so that the multiple energy storage devices 200 can cooperatively perform charging and discharging work.

[0100] Among them, the first signal transmission component 116 includes a second crimp female pin 1162 and a second locking female pin 1164, which are inserted together and are provided with a sealing gasket therebetween. The second signal transmission component 124 includes a second crimp male pin 1242 and a second locking male pin 1244, which are also inserted together and are provided with a sealing gasket therebetween.

[0101] When the plug 120 and the socket 110 are inserted together, the first signal transmission component 116 and the second signal transmission component 124 are butted together, so that the control circuits 230 of the two energy storage devices 200 are connected together, so that electrical signals can be transmitted between the multiple energy storage devices 200, thereby meeting the cooperative work requirements of the multiple energy storage devices 200.

[0102] Specifically, the first signal transmission component 116 and the second signal transmission component 124 are each provided with 3 main pins capable of passing through an alternating current rated voltage of 500V and a rated current of 60A, and are also provided with pins capable of passing through a current signal of 3A, and reserve pins for passing through high voltage and low current.

[0103] In the energy storage system, because of the existence of expansion and external PDU (Power Distribution Unit, power distribution unit) scheme, the stacking or plugging between the boxes 210 is often involved. The main current, control signal, communication signal, ground signal, etc. are needed between two different boxes 210.

[0104] To this end, the application connects the cables of the main circuit and the signal circuit in one box 210 to the plug 120 or the socket 110, and connects the cables of the main circuit and the signal circuit of another box 210 to the counter plug. When a battery pack needs to be connected to a PDU or a parallel machine, the boxes 210 can be directly stacked together, and the connector plug 120 and the socket 110 are counter-plugged in place, so that the signal and main current switching can be easily realized, the number of plug-in times is realized, the sealing requirement is met, and the technical effects of facilitating the installation and repair of the energy storage system and saving manpower and material resources are realized.

[0105] Specifically, in order to cope with the multiple connections and plug-in of the box 210 during production, debugging and installation, the plug 120 and the socket 110 proposed by the application can realize at least 500 times of plug-in, which can meet the plug-in requirements in the whole life cycle of the machine product.

[0106] Specifically, the electrical connection assembly 100 proposed by the application supports two connection modes of wire harness and copper bar, and the connection mode can be freely selected inside the product.

[0107] Specifically, the first signal transmission component 116 further includes a first extension needle 1166, the second signal transmission component 124 further includes a second extension needle 1246, and the socket 110 further includes a gland 119.

[0108] As shown in Figure 1 、 Figure 2 、 Figure 3 and Figure 4 , in some embodiments of the application, optionally, the socket 110 includes a slot 1102, and the plug 120 includes a protruding part 1202; when the plug 120 is inserted into the socket 110, the protruding part 1202 is inserted into the slot 1102, and the first grounding component 112 and the second grounding component 122 are counter-connected in the slot 1102.

[0109] In this embodiment, the socket 110 is provided with a slot 1102, and the plug 120 is correspondingly provided with a protruding part 1202, the shape of the slot 1102 is matched with the shape of the protruding part 1202, and after the socket 110 and the plug 120 are counter-connected, the protruding part 1202 is embedded into the slot 1102.

[0110] Specifically, the first grounding component 112 is arranged inside the slot 1102, and the second grounding component 122 is also arranged inside the protruding part 1202, and after the counter-connection of the plug 120 and the socket 110 is completed, the first grounding component 112 and the second grounding component 122 are counter-connected in the slot 1102.

[0111] By setting the slot 1102 and the protruding part 1202, the accuracy and stability of the plug-in of the two can be improved, thereby improving the stability of the electrical connection between the two energy storage devices 200 and reducing the probability of disconnection. Moreover, the butt joint of the first grounding component 112 and the second grounding component 122 in the slot 1102 can provide effective protection for the first grounding component 112 and the second grounding component 122, further reducing the probability of disconnection.

[0112] As shown in Figure 3 and Figure 4 In some embodiments of the utility model, the electrical connection assembly 100 further comprises: a first sealing ring 126, the first sealing ring 126 is sleeved on the protruding part 1202, and the first sealing ring 126 is used to seal the gap between the protruding part 1202 and the inner wall of the slot 1102; a second sealing ring 128, the second sealing ring 128 is arranged on the socket 110 or the plug 120, and the second sealing ring 128 is used to seal the gap between the socket 110 and the plug 120 outside the slot 1102.

[0113] In this embodiment, the first sealing ring 126 is sleeved on the protruding part 1202, and after the protruding part 1202 is inserted into the slot 1102, the first sealing ring 126 can fill the gap between the protruding part 1202 and the inner wall of the slot 1102, thereby effectively sealing the slot 1102 and preventing dust, water vapor and other substances that affect the stability of the electrical connection from entering the butt joint space of the first grounding component 112 and the second grounding component 122.

[0114] Specifically, the socket 110 or the plug 120 is further provided with a second sealing ring 128, and the second sealing ring 128 is arranged outside the slot 1102 and the protruding part 1202. Specifically, the second sealing ring 128 can be arranged between the clamping surfaces of the socket 110 and the plug 120. After the plug 120 and the socket 110 are connected by plug-in, the second sealing ring 128 can seal the gap between the plug 120 and the socket 110 outside the slot 1102, thereby forming double protection with the first sealing ring 126, further reducing the probability of pollutants entering the butt joint space of the first grounding component 112 and the second grounding component 122, and thereby achieving the technical effects of improving the stability and reliability of the electrical connection assembly 100.

[0115] Specifically, by setting the first sealing ring 126 and the second sealing ring 128, the waterproof level (IP, Ingress Protection) of the electrical connection assembly 100 can reach IP65.

[0116] As shown in Figure 1 and Figure 3As shown in some embodiments of the utility model, optionally, the electric connection assembly 100 further comprises: a first cover 118, the first cover 118 is connected with the socket 110, and the first cover 118 covers the slot 1102; a second cover 129, the second cover 129 is connected with the plug 120, and the second cover 129 wraps the protruding part 1202.

[0117] In this embodiment, the electric connection assembly 100 further comprises a first cover 118 and a second cover 129, the first cover 118 is detachably connected with the socket 110, when the first cover 118 is assembled to the socket 110, the first cover 118 can cover the slot 1102, thereby shielding the first grounding component 112 inside the slot 1102, thereby providing effective protection for the first grounding component 112.

[0118] Correspondingly, the second cover 129 is detachably connected with the plug 120, when the second cover 129 is assembled to the plug 120, the second cover 129 can cover the protruding part 1202, thereby shielding the second grounding component 122 inside the protruding part 1202, thereby providing effective protection for the second grounding component 122.

[0119] As Figure 6 shown, one embodiment of the utility model provides a kind of energy storage device 200, and energy storage device 200 includes: box 210;As any of the above embodiments in electric connection assembly 100, socket 110 and plug 120 are arranged in box 210, one of first grounding component 112 and second grounding component 122 is electrically connected with box 210.

[0120] In this embodiment, a kind of energy storage device 200 is defined, and the electric connection assembly 100 in any of the above embodiments is included in energy storage device 200, so the energy storage device 200 has the advantages of the electric connection assembly 100 in any of the above embodiments, and can realize the technical effects that the electric connection assembly 100 in any of the above embodiments can realize.

[0121] Specifically, the energy storage device 200 includes a box 210, which forms the exposed surface of the energy storage device 200, and the box 210 can provide positioning and protection for the structures inside the energy storage device 200.

[0122] The electric connection assembly 100 includes a plug 120 and a socket 110, and each box 210 of the energy storage device 200 is provided with one plug 120 and one socket 110. The energy storage device 200 can connect the socket 110 on another energy storage device 200 through the plug 120 thereon to realize electrical connection between the two energy storage devices 200, so that multiple energy storage devices 200 can cooperate to charge and discharge.

[0123] It needs to be clear that in the claims, the description and the drawings of the utility model, the term "multiple" refers to two or more than two, unless there is an additional explicit limitation, the orientation or position relationship indicated by the terms "upper", "lower" and the like is based on the orientation or position relationship shown in the drawings, only for more convenient description of the utility model and make the description process more simple, and is not intended to indicate or imply that the device or element must have the described specific orientation, constructed and operated in a specific orientation, therefore these descriptions cannot be understood as a limitation of the utility model; the terms "connection", "installation", "fixation" and the like should be understood broadly, for example, "connection" can be the fixed connection between multiple objects, can also be detachable connection between multiple objects, or integrally connected; it can be direct connection between multiple objects, can also be indirect connection between multiple objects through intermediate medium. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances of the above data.

[0124] In the claims, the description and the drawings of the utility model, the description of the terms "one embodiment", "some embodiments", "specific embodiment" and the like means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are contained in at least one embodiment or example of the utility model. In the claims, the description and the drawings of the utility model, the illustrative representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0125] The above is only the preferred embodiment of the utility model, and is not used to limit the utility model, for those skilled in the art, the utility model can have various changes and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. An electrical connection assembly, characterized by The electric connection assembly is used in an energy storage device, the energy storage device comprises a box body, and the electric connection assembly comprises: a socket comprising a first grounding component; a plug capable of being plugged with the socket, the plug comprising a second grounding component, the plug and the socket being capable of being respectively arranged on two adjacent box bodies, the plug and the socket being capable of being electrically connected with two adjacent energy storage devices by plugging, the first grounding component and the second grounding component being capable of being docked when the plug is plugged with the socket; wherein at least one of the first grounding component and the second grounding component is used for electrically connecting the box body.

2. The electric connection assembly according to claim 1, wherein the first grounding component is used for electrically connecting the box body.

3. An electrical connection assembly according to claim 2, wherein, Further comprising: a fixing component provided on the socket, the fixing component being made of an electrically conductive material, the fixing component being used for fixing the socket on the box body, and the first grounding component being connected with the fixing component.

4. An electrical connection assembly according to claim 3, wherein, The first grounding component comprises: a grounding female pin provided on the socket; a conductor connecting the grounding female pin and the fixing component.

5. An electrical connection assembly according to claim 4, wherein, The second grounding component comprises: a grounding male pin provided on the plug, the grounding male pin being capable of being docked with the grounding female pin.

6. An electrical connection assembly according to any one of claims 1 to 5, wherein, The energy storage device further comprises a control circuit, and the electric connection assembly further comprises: a first signal transmission component provided on the socket, the first signal transmission component being used for electrically connecting the control circuit; a second signal transmission component provided on the plug, the second signal transmission component being used for connecting the control circuit, the first signal transmission component and the second signal transmission component being electrically connected when the plug is plugged with the socket.

7. The electric connection assembly according to any one of claims 1 to 5, wherein the socket comprises a socket slot, and the plug comprises a protruding part; the protruding part is inserted into the socket slot when the plug is plugged with the socket, and the first grounding component and the second grounding component are docked in the socket slot.

8. An electrical connection assembly according to claim 7, wherein, Further comprising: a first sealing ring sleeved on the protruding part, the first sealing ring being used for sealing a gap between the protruding part and an inner wall of the socket slot; a second sealing ring provided on the socket or the plug, the second sealing ring being used for sealing a gap between the socket and the plug outside the socket slot.

9. An electrical connection assembly according to claim 7, wherein, Further comprising: a first cover connected with the socket, the first cover covering the socket slot; a second cover connected with the plug, the second cover wrapping the protruding part.

10. An energy storage device, characterized by, comprising: a box body; the electric connection assembly according to any one of claims 1 to 9, the socket and the plug being provided on the box body, and one of the first grounding component and the second grounding component being electrically connected with the box body.

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