Power distribution plug-in frame structure and energy storage system

Abstract

The utility model discloses a power distribution plug-in frame structure and an energy storage system, the power distribution plug-in frame structure comprises a plug-in frame, a fixing plate, two copper bar groups and two connector groups, a circuit structure is arranged in the plug-in frame, a protection device is integrated on the circuit structure, and the circuit structure is provided with an input end and an output end; the fixing plate and the insertion frame are oppositely arranged in the first direction, and two through holes are formed in the fixing plate; the two copper bar groups are fixed on one side, deviating from the plug-in frame, of the fixed plate; the two connector sets are fixed to the side, facing the fixing plate, of the plug-in frame, one connector set is electrically connected with the input end, the other connector set is electrically connected with the output end, and the two connector sets correspond to the two through holes one to one and penetrate through the corresponding through holes to be detachably connected with the corresponding copper bar sets. When the protection device needs to be maintained or replaced, the circuit structure in the plug-in frame can be powered off only by separating the corresponding connector assembly group from the copper bar group, and the operation is simple, convenient and efficient.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of energy storage, in particular to a power distribution plug-in frame structure and an energy storage system. BACKGROUND

[0002] The current power distribution part of the energy storage cabinet is basically divided into two forms. One is that the protection device and the PCS (Power Conversion System) are two independent devices, which are respectively installed in the cabinet. The power grid and the protection device, and the protection device and the PCS are directly connected through cables or copper bars. The other is that the protection device is directly integrated into the PCS, and the power grid and the integrated PCS are connected through cables.

[0003] In the above two forms, the protection device and the power grid are basically hard connected. When the protection device needs to be maintained or replaced, the power grid related departments need to be coordinated to cut off the power, and then the connection between the power grid and the protection device needs to be removed before the device can be replaced. The operation is complex and inefficient. CONTENT OF THE UTILITY MODEL

[0004] The main purpose of the present application is to provide a power distribution plug-in frame structure and an energy storage system, which aims to solve the problem of complex operation and low efficiency of maintenance or replacement of protection devices.

[0005] To achieve the above purpose, the present application provides a power distribution plug-in frame structure, which comprises a plug-in frame, a fixed plate, two copper bar groups and two connector groups. The plug-in frame is internally provided with a circuit structure, the circuit structure is integrated with a protection device, and the circuit structure has one input end and one output end. The fixed plate is oppositely arranged with the plug-in frame in a first direction, and the fixed plate is provided with two through holes with intervals in a second direction, the second direction intersects with the first direction. Two copper bar groups are fixed to the side of the fixed plate away from the plug-in frame, and two copper bar groups correspond to two through holes and are opposite to the corresponding through holes in the first direction. Two connector groups are fixed to the side of the plug-in frame facing the fixed plate, one connector group is electrically connected with the input end, and the other connector group is electrically connected with the output end. Two connector groups correspond to two through holes and are detachably connected with the corresponding copper bar groups through the corresponding through holes.

[0006] Optionally, the copper bar group comprises a plurality of first copper bars, and the plurality of first copper bars in the same copper bar group are arranged at intervals in a third direction, and the third direction intersects with the first direction and the second direction. The connector group comprises a plurality of connectors, and the plurality of connectors in the same connector group are arranged at intervals in the third direction. The first copper bar and the connector correspond one by one and are detachably connected.

[0007] Optionally, the first copper bar has the same extension direction as the second direction, and the two ends of the first copper bar are located on the two sides of the through hole in the second direction; the copper bar group further comprises a copper bar clamp, which is arranged on one side of the through hole in the second direction and fixed to the fixed plate, and each first copper bar passes through the copper bar clamp and is fixedly connected with the copper bar clamp.

[0008] Optionally, the copper bar group further comprises a fixing member, which is arranged on the two sides of the through hole in the second direction opposite to the copper bar clamp, and the end of each first copper bar is fixedly connected with the fixing member.

[0009] Optionally, the connector group further comprises an insulating shell, which is provided with a plurality of accommodation grooves arranged at intervals in a third direction on the side away from the fixed plate, and is provided with a plurality of notches arranged at intervals in the third direction on the side facing the fixed plate; wherein the plurality of notches and the plurality of accommodation grooves correspond to each other and are in communication, the first copper bar passes through the corresponding notch, and the connector is inserted into the corresponding accommodation groove and is detachably connected with the first copper bar.

[0010] Optionally, the connector comprises a second copper bar, two fixing pins, two contacts and a clasp, the first end of the second copper bar is inserted into the accommodation groove, and the second end is electrically connected with the corresponding input end or the corresponding output end; the two fixing pins are fixed to the first end of the second copper bar and have the same axial direction as the second direction, and the two fixing pins are arranged at intervals in the third direction; the two contacts correspond to the two fixing pins and are sleeved on the outer sides of the corresponding fixing pins, the contacts are rotatably connected with the fixing pins, and the contacts have the freedom of rotation around the axial direction of the fixing pins, wherein the two contacts are arranged opposite to each other in the third direction, and the ends of the two contacts away from the fixing pins are located at the notches; the clasp is connected to the middle positions of the two contacts.

[0011] Optionally, the side of the plug-in frame facing the fixed plate and the fixed plate are both stepped structures matched with each other, and the two copper bar groups have a spacing in the first direction.

[0012] Optionally, the circuit structure further integrally has an auxiliary power supply and a data acquisition device.

[0013] In addition, in order to achieve the above-mentioned purpose, the application further provides an energy storage system, which comprises a cabinet body and the power distribution plug-in frame structure.

[0014] Optionally, the energy storage system further comprises a guide rail arranged in the cabinet body and matched with the plug-in frame, and the plug-in frame has the freedom of sliding in the first direction.

[0015] The power distribution plug-in frame structure provided by the embodiment of the application can fix the fixed plate in the energy storage cabinet, the copper bar group on the fixed plate is connected with the power grid, the protection device is integrated on the circuit structure in the plug-in frame, and the plug-in connector group on the plug-in frame is electrically connected with the corresponding copper bar group; when the protection device needs to be maintained or replaced, the corresponding plug-in connector group and copper bar group are only separated, the circuit structure in the plug-in frame is powered off, and the protection device is powered off, so that the plug-in frame can be moved out of the cabinet body, and the protection device can be maintained or replaced, which is simple and efficient. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 The overall structure schematic diagram of the power distribution plug-in frame structure provided by the embodiment of the application is shown in the figure.

[0017] Figure 2 The structure schematic diagram of the plug-in frame and the fixed plate separated in the embodiment of the application is shown in the figure.

[0018] Figure 3 The plug-in frame structure schematic diagram of the embodiment of the application is shown in the figure.

[0019] Figure 4 The internal structure schematic diagram of the plug-in frame of the embodiment of the application is shown in the figure.

[0020] Figure 5 The structure schematic diagram of the insulating shell of the embodiment of the application is shown in the figure.

[0021] Figure 6 The cross-sectional structure schematic diagram of the insulating shell of the embodiment of the application is shown in the figure.

[0022] Figure 7 The overall structure schematic diagram of the energy storage system provided by the embodiment of the application is shown in the figure.

[0023] In the figure: 1, plug-in frame; 11, external terminal seat; 12, control switch; 13, electric meter; 14, circuit breaker operating handle; 15, air inlet; 16, handle; 17, upper air outlet; 18, rear air outlet; 2, fixed plate; 21, through hole; 3, first copper bar; 4, plug-in connector; 41, second copper bar; 42, fixing pin; 43, contact; 44, clamping spring; 5, copper bar clamp; 6, fixing piece; 7, insulating shell; 71, accommodating groove; 72, notch; 8, cabinet body; 91, switching power supply; 92, circuit breaker; 93, mutual inductor.

[0024] The implementation, functional features and advantages of the application will be further described with reference to the embodiments and the accompanying drawings. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present application will be clearly and completely described with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of protection of the present application.

[0026] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative positional relationship, movement condition, etc. between components in a certain specific posture (as shown in the drawings), and if the specific posture changes, the directional indications will also change accordingly.

[0027] In the present application, unless otherwise explicitly specified and limited, the terms "connection", "fixing", etc. should be understood in a broad sense, for example, "fixing" can be fixed connection, or detachable connection, or integral; can be mechanical connection, or electrical connection; can be direct connection, or indirect connection through an intermediate medium; can be internal connection of two elements or interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0028] In addition, if the present application embodiments involve "first", "second", etc. description, the "first", "second", etc. description is only for description purpose, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features with "first" and "second" can explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing throughout the text includes three parallel schemes, for example, "A and / or B" includes A scheme, or B scheme, or A and B schemes. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of those skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the scope of protection required by the present application.

[0029] Reference Figures 1-7The power distribution socket structure can include a socket 1, a fixed plate 2, two copper bar groups and two connector groups. The socket 1 is internally provided with a circuit structure, and a protection device is integrated on the circuit structure. The circuit structure has one input end and one output end. The fixed plate 2 is oppositely arranged with the socket 1 in a first direction. The fixed plate 2 is provided with two through holes 21 having intervals in a second direction. The second direction intersects the first direction. The two copper bar groups are fixed to the side of the fixed plate 2 away from the socket 1. The two copper bar groups correspond to the two through holes 21 and are opposite to the corresponding through holes 21 in the first direction. The two connector groups are fixed to the side of the socket 1 facing the fixed plate 2. One connector group is electrically connected to the input end, and the other connector group is electrically connected to the output end. The two connector groups correspond to the two through holes 21 and are detachably connected to the corresponding through holes 21 and the corresponding copper bar groups.

[0030] The power distribution socket structure can fix the fixed plate 2 in the energy storage cabinet, connect the copper bar group on the fixed plate 2 with the power grid, integrate the protection device on the circuit structure in the socket 1, and electrically connect the connector group on the socket 1 with the corresponding copper bar group. When the protection device needs to be maintained or replaced, the corresponding connector group and copper bar group are separated, the circuit structure in the socket 1 is powered off, and the protection device is powered off, so that the socket 1 is removed from the cabinet 8, and the protection device is maintained or replaced, which is simple and efficient.

[0031] As shown in Figure 7 for easy understanding, the shape of the socket 1 in the present application is taken as an example for illustration. The socket 1 has a length, a width and a height. The socket 1 is usually placed in the cabinet 8 when in use, and at this time, the height direction of the socket 1 is the same as the direction of gravity. The cross section of the socket 1 perpendicular to the height direction is a rectangle. The rectangle cross section has a long edge and a short edge perpendicular to each other. The direction of the long edge is the length direction, and the direction of the short edge is the width direction. If the lengths of the edges perpendicular to each other of the rectangle cross section are the same, the direction of any edge is taken as the length direction, and the direction of the edge perpendicular to it is taken as the width direction. Figure 1 As shown in

[0032] It should be understood that in the two copper bar groups, one copper bar group is electrically connected with the power grid as a current inlet, and the other copper bar group is electrically connected with the power grid as a current outlet. The PCS can be fixed in the cabinet 8 as the fixed plate 2, and the PCS can be electrically connected between the copper bar group as the current outlet and the power grid.

[0033] It should be noted that when the two connector groups are connected with the corresponding copper bar groups, the circuit structure in the plug-in frame 1 is connected with the power grid, and at this time the corresponding connector groups pass through the corresponding through holes 21; when the two connector groups are separated from the corresponding copper bar groups, the circuit structure in the plug-in frame 1 is powered off; wherein, the two connector groups are connected or separated with the corresponding copper bar groups synchronously.

[0034] Wherein, the copper bar group is opposite to the corresponding through hole 21 in the first direction, which can be understood as the projection of the copper bar group on the fixed plate 2 in the first direction is located in the corresponding through hole 21; or, a connection area can be split from the copper bar group, and the copper bar group is opposite to the corresponding through hole 21 in the first direction, which can be understood as the projection of the connection area on the fixed plate 2 in the first direction is located in the corresponding through hole 21. After such setting, the connector group passing through the corresponding through hole can contact the connection area on the corresponding copper bar group to realize the detachable connection of the connector group and the corresponding copper bar group.

[0035] In addition, the protection device can be a circuit breaker 92.

[0036] Reference Figure 2 In the exemplary embodiment, the copper bar group can include a plurality of first copper bars 3, and the plurality of first copper bars 3 in the same copper bar group are arranged at intervals in the third direction, and the third direction intersects the first direction and the second direction; the connector group can include a plurality of connectors 4, and the plurality of connectors 4 in the same connector group are arranged at intervals in the third direction; wherein, the first copper bar 3 and the connector 4 are one-to-one detachable connection.

[0037] Wherein, in the same copper bar group, the plurality of first copper bars 3 are one-to-one corresponding to the plurality of connectors 4 in the corresponding connector group; each connector 4 and the corresponding first copper bar 3 are synchronously connected or separated.

[0038] Reference Figure 2 In the exemplary embodiment, the extension direction of the first copper bar 3 is the same as the second direction, and the two ends of the first copper bar 3 are located on the two sides of the through hole 21 in the second direction; the copper bar group further includes a copper bar clamp 5, which is arranged on one side of the through hole 21 in the second direction and fixed to the fixed plate 2, and each first copper bar 3 passes through the copper bar clamp 5 and is fixedly connected with the copper bar clamp 5. The copper bar group can further include a fixing member 6, which is arranged on the two sides of the through hole 21 opposite to the copper bar clamp 5 in the second direction, and the end of each first copper bar 3 is fixedly connected with the fixing member 6.

[0039] It should be understood that the copper bar group including the copper bar clamp 5 and the fixing member 6 is described by taking one copper bar group as an example. Of course, each first copper bar 3 here refers to each first copper bar 3 in the copper bar group.

[0040] Specifically, the extension direction of each first copper bar 3 is the same as the second direction, and in the same copper bar group, one end of each first copper bar 3 is fixed to the fixed plate 2 through the fixing member 6, and the other end passes through the copper bar clamp 5 and is fixed to the fixed plate 2 through the copper bar clamp 5, so that the first copper bar 3 is fixed at two positions, and the fixing effect is better.

[0041] In addition, the fixing member 6 and the copper bar clamp 5 are arranged opposite to each other in the second direction on both sides of the corresponding through hole 21, so that when the first copper bar 3 is connected or separated from the corresponding connector 4 at the corresponding through hole 21, the stress position on the first copper bar 3 is located between the two fixed positions of the first copper bar 3, so that the first copper bar 3 is more stable.

[0042] Reference Figures 4-6 In the example embodiment, the connector group can further include an insulating shell 7, the side of the insulating shell 7 away from the fixed plate 2 is provided with a plurality of accommodation grooves 71 arranged at intervals in the third direction, and the side of the insulating shell 7 facing the fixed plate 2 is provided with a plurality of notches 72 arranged at intervals in the third direction; wherein the plurality of notches 72 and the plurality of accommodation grooves 71 are in one-to-one correspondence and communication, the first copper bar 3 passes through the corresponding notch 72, and the connector 4 is inserted into the corresponding accommodation groove 71 and is detachably connected with the first copper bar 3.

[0043] Specifically, each connector 4 is inserted into an accommodation groove 71, each first copper bar 3 also passes through a corresponding notch 72, and each accommodation groove 71 is in communication with the corresponding notch 72, so that each connector 4 can be detachably connected with the first copper bar 3.

[0044] Reference Figure 6 In the example embodiment, the connector 4 can include a second copper bar 41, two fixed pins 42, two contacts 43 and a circlip 44, the first end of the second copper bar 41 is inserted into the accommodation groove 71, and the second end is electrically connected with the corresponding input end or the corresponding output end; the two fixed pins 42 are both fixed to the first end of the second copper bar 41 and have the same axial direction as the second direction, and the two fixed pins 42 are arranged at intervals in the third direction; the two contacts 43 correspond to the two fixed pins 42 one by one, and one end of each contact 43 is sleeved outside the corresponding fixed pin 42, the contact 43 is rotationally connected with the fixed pin 42, and the contact 43 has the freedom of rotation around the axial direction of the fixed pin 42, wherein the two contacts 43 are arranged opposite to each other in the third direction, and the end of the two contacts 43 away from the fixed pin 42 is located in the notch 72; the two ends of the circlip 44 are connected to the middle positions of the two contacts 43, respectively.

[0045] Specifically, when the connector 4 is separated from the corresponding first copper bar 3, at this time the first copper bar 3 is not in the notch 72, the circlip 44 drives the two contacts 43 to rotate around the axial direction of the fixed pin 42, so that the ends of the two contacts 43 away from the fixed pin 42 are close to each other and abut, and the abutting area is located in the notch 72.

[0046] When the connector 4 is connected with the first copper bar 3, the frame 1 can be moved in the first direction to make the frame 1 close to the fixed plate 2, and the frame 1 drives the insulation shell 7 to move, so that the first copper bar 3 is inserted into the corresponding notch 72 of the insulation shell 7 in the first direction, the first copper bar 3 is inserted into the contact area of the two contacts 43 and the two contacts 43 are separated, the clamping spring 44 drives the two contacts 43 to clamp the first copper bar 3, and the fixed pin 42 and the contact 43 are conductive structures. When the two contacts 43 clamp the first copper bar 3, the first copper bar 3 is electrically connected with the corresponding second copper bar 41.

[0047] When the connector 4 is separated from the first copper bar 3, the frame 1 is moved in the first direction to make the frame 1 away from the fixed plate 2, and the contact 43 is separated from the first copper bar 3, so that the circuit structure in the frame 1 is powered off.

[0048] As shown in Figure 6 , the two contacts 43 are mirror images of each other, and the ends of the two contacts 43 away from the fixed pin 42 are arc structures. When the two contacts 43 are in contact with the ends away from the fixed pin 42, the two arc structures are in contact. At this time, the first copper bar 3 is facilitated to enter the contact area of the two arc structures from the separation area of the two arc structures, thereby separating the two contacts 43, and the use is more convenient.

[0049] Further, the thickness direction of the first copper bar 3 is the same as the third direction, and the two contacts 43 are oppositely arranged in the third direction, so that the first copper bar 3 is more convenient to separate the two contacts 43.

[0050] The clamping spring 44 can be a spring, and the spring is in a compressed state. The two ends of the spring are connected to the middle positions of the two contacts 43, so that the spring can force the two contacts 43 to rotate away from the corresponding fixed pin 42 and approach each other. Of course, the clamping spring 44 can also be in an arc shape as shown in Figure 6 , and the two ends of the clamping spring 44 are connected to the middle positions of the two contacts 43. The specific shape of the clamping spring 44 is not limited, as long as the clamping spring 44 can drive the two contacts 43 to contact each other.

[0051] It should be understood that, compared with the traditional scheme, after adopting the power distribution frame structure, only the frame 1 needs to be moved to complete the power-off or power-on of the circuit structure inside the frame 1, without the need to leave a larger operation space for disconnection or connection of wires around the frame 1, and the space utilization rate is higher.

[0052] Further, the combination of the two contacts 43 is referred to as a contact group, and there can be two contact groups in the same connector 4. The two contact groups are sequentially distributed in the second direction, and the clamping spring 44 is arranged between the two contact groups and provides driving force for the two contact groups. In this way, the second copper bar 41 is connected with the first copper bar 3 through the two contact groups, and the connection effect is better.

[0053] Furthermore, the combination of the two contact groups and the snap ring 44 is referred to as a connecting assembly. There can be two sets of connecting assemblies, which are arranged opposite to each other on both sides of the second copper busbar 41 in the second direction.

[0054] There are four contact groups in total, with a total of eight contacts 43. The four contact groups are connected to the first copper busbar 3 at four different locations, resulting in a better connection effect. Each contact 43 is connected to the second copper busbar 41 via a fixing pin 42.

[0055] refer to Figure 2 In an exemplary embodiment, the side of the insert frame 1 facing the fixing plate 2 and the fixing plate 2 are both stepped structures that cooperate with each other, and the two copper busbars are spaced apart in the first direction.

[0056] Specifically, such as Figure 2 As shown, the two copper busbar groups are respectively set at the corresponding through holes 21. When the fixing plate 2 has a stepped structure and the two copper busbar groups have a gap in the first direction, the two copper busbar groups can partially overlap in the first direction. This makes the two copper busbar groups more compact, effectively reducing the overall space occupied by the fixing plate 2 and improving space utilization.

[0057] It should be understood that the side of the insert frame 1 facing the fixing plate 2 and the fixing plate 2 are both stepped structures that cooperate with each other. This means that the side of the insert frame 1 facing the fixing plate 2 is also a stepped structure and can be matched with the fixing plate 2, so that the connector group on the insert frame 1 can be synchronously connected or disconnected from the corresponding copper busbar group on the fixing plate 2.

[0058] refer to Figure 3 and Figure 7 In an exemplary embodiment, the circuit structure also integrates an auxiliary power supply and a data acquisition device.

[0059] In this way, the data acquisition device, auxiliary power supply and other components are integrated into the insertion frame 1, making full use of the front and rear space of the cabinet 8, which can effectively reduce the floor area occupied by the cabinet 8.

[0060] The auxiliary power supply can be a switching power supply 91, and the data acquisition device can be a current transformer 93 and a meter 13, etc.

[0061] like Figure 4 As shown, the side of the insertion frame 1 away from the fixing plate 2 is also provided with external terminal block 11, control switch 12, meter 13, circuit breaker operating handle 14 and other structures to improve the ease of use of the insertion frame 1.

[0062] refer to Figure 7On the basis of the above-mentioned embodiments, the energy storage system can comprise a cabinet 8 and the power distribution socket structure as described above, and the power distribution socket structure is arranged in the cabinet 8.

[0063] The cabinet 8 has a top plate and a bottom plate arranged opposite in the height direction of the cabinet 8, and the fixing plate 2 is fixed to the side of the bottom plate facing the top plate, and the second direction can be the same as the height direction of the cabinet 8.

[0064] Specifically, the fixing plate 2 can be fixed to the bottom plate, and the two copper bar groups on the fixing plate 2 can be electrically connected to the power grid, one copper bar group as a current incoming line, and the other copper bar group as a current outgoing line.

[0065] When the connector group on the socket 1 is connected to the corresponding copper bar group on the fixing plate 2, the circuit structure in the socket 1 is powered on; when the socket 1 is moved along the first direction to separate the socket 1 from the fixing plate 2, the circuit structure in the socket 1 is powered off, at this time, it is convenient to repair and replace the circuit structure in the socket 1, that is, it is convenient to repair and replace the protection device.

[0066] In addition, referring to Figure 2 With Figure 3 , the side of the socket 1 away from the fixing plate 2 is also provided with an air inlet 15, the side of the socket 1 away from the bottom plate is provided with an upper air outlet 17, and the side of the socket 1 facing the fixing plate 2 is provided with a rear air outlet 18; the air inlet 15 cooperates with the upper air outlet 17 and the rear air outlet 18 to dissipate heat inside the socket 1.

[0067] Referring to Figure 7 When the socket 1 is connected to the fixing plate 2, the air vent provided on the cabinet 8 is opposite to the air inlet 15 on the socket 1 in the first direction, so that it is convenient for the air inlet of the socket 1 to dissipate heat.

[0068] In an exemplary embodiment, the energy storage system can also comprise a guide rail arranged in the cabinet 8 and cooperating with the socket 1, and the socket 1 has a degree of freedom to slide along the first direction.

[0069] Specifically, the extension direction of the guide rail is the same as the first direction, and the guide rail can be arranged on the side of the bottom plate facing the top plate, and the cooperation of the socket 1 and the guide rail facilitates the movement of the socket 1 along the first direction, so that the connector group on the socket 1 can be connected or separated from the copper bar group on the fixing plate 2.

[0070] The guide rail can be two angle steels arranged opposite on the bottom plate in the third direction, and both of the angle steels extend along the first direction, so that the socket 1 can be placed between the two angle steels, and the socket 1 can be moved along the first direction more accurately and conveniently.

[0071] In addition, as Figures 2-4As shown, the side of the plug-in frame 1 away from the fixing plate 2 is also provided with a handle 16, and it is more convenient to control the movement of the plug-in frame 1 by holding the handle 16.

[0072] The cabinet 8 can be an AC-DC energy storage cabinet, and the internal structure of the plug-in frame 1 is suitable for an alternating current system. The protection device corresponds to an alternating current circuit breaker, the data acquisition device is an alternating current meter and a current transformer, and the auxiliary power supply is an alternating current to direct current switching power supply.

[0073] Of course, the internal structure of the plug-in frame 1 can be replaced. For example, the alternating current circuit breaker is replaced by a direct current circuit breaker or a direct current contactor, and the alternating current meter and the current transformer are replaced by a direct current meter, a shunt, a current Hall, etc. The alternating current to direct current switching power supply is replaced by a direct current to direct current switching power supply or a direct current to alternating current switching power supply. The plug-in frame 1 after the change is suitable for a direct current system and can be applied in a DC-DC energy storage cabinet.

[0074] The above is only a preferred embodiment of the present application, and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation using the content of the specification and drawings, or direct or indirect application in other related technical fields, is also included in the patent protection scope of the present application.

Claims

1. A power distribution block structure, characterized by, include: The insert frame (1) has a circuit structure inside, and the circuit structure integrates a protection device. The circuit structure has an input terminal and an output terminal. A fixing plate (2) is disposed opposite to the insert frame (1) in a first direction. The fixing plate (2) is provided with two through holes (21) spaced apart in a second direction, and the second direction intersects the first direction. Two copper busbar assemblies are fixed to the side of the fixing plate (2) away from the insertion frame (1). The two copper busbar assemblies correspond one-to-one with the two through holes (21) and are opposite to the corresponding through holes (21) in the first direction. Two connector groups are fixed on the side of the insert frame (1) facing the fixing plate (2). One connector group is electrically connected to the input end and the other connector group is electrically connected to the output end. The two connector groups correspond one-to-one with the two through holes (21) and are detachably connected to the corresponding copper busbar group through the corresponding through holes (21).

2. The power distribution outlet strip structure of claim 1, wherein, The copper busbar group includes a plurality of first copper busbars (3), and the plurality of first copper busbars (3) in the same copper busbar group are arranged at intervals in a third direction, the third direction intersecting with the first direction and the second direction; The connector group includes multiple connectors (4), and the multiple connectors (4) in the same connector group are arranged at intervals in the third direction; The first copper busbar (3) and the connector (4) are detachably connected in a one-to-one correspondence.

3. The power distribution grommet structure of claim 2, wherein, The first copper busbar (3) extends in the same direction as the second direction, and both ends of the first copper busbar (3) are located on both sides of the through hole (21) in the second direction; the copper busbar assembly further includes: A copper busbar clamp (5) is disposed on one side of the through hole (21) in the second direction and fixed on the fixing plate (2). Each of the first copper busbars (3) passes through the copper busbar clamp (5) and is fixedly connected to the copper busbar clamp (5).

4. The power distribution grommet structure of claim 3, wherein, The copper busbar assembly also includes: The fixing member (6) is disposed on both sides of the through hole (21) opposite to the copper busbar clamp (5) in the second direction, and the ends of each of the first copper busbars (3) are fixedly connected to the fixing member (6).

5. The power distribution outlet strip structure of claim 2, wherein, The connector group also includes: The insulating shell (7) has a plurality of receiving grooves (71) arranged at intervals in the third direction on the side away from the fixing plate (2), and a plurality of notches (72) arranged at intervals in the third direction on the side facing the fixing plate (2). Among them, multiple notches (72) are connected to multiple receiving slots (71) in a one-to-one correspondence, the first copper busbar (3) passes through the corresponding notch (72), and the connector (4) is inserted into the corresponding receiving slot (71) and detachably connected to the first copper busbar (3).

6. The power distribution outlet strip structure of claim 5, wherein, The connector (4) includes: The second copper busbar (41) has its first end inserted into the receiving groove (71) and its second end electrically connected to the corresponding input end or the corresponding output end. Two fixed pins (42) are fixed at the first end of the second copper bar (41) and are axially the same as the second direction, and the two fixed pins (42) are spaced apart in the third direction; Two contacts (43) correspond to the two fixed pins (42) and one end of the contact (43) is sleeved outside the corresponding fixed pin (42), the contact (43) is rotatably connected with the fixed pin (42), the contact (43) has the freedom of rotating around the axis of the fixed pin (42), wherein the two contacts (43) are oppositely arranged in the third direction, and the one end of the two contacts (43) away from the fixed pin (42) is located at the notch (72); The clamping spring (44) is connected to the middle position of the two contacts (43) respectively.

7. The power distribution outlet strip structure of claim 1, wherein, The side of the plug-in frame (1) facing the fixed plate (2) and the fixed plate (2) are both ladder-shaped structures matched with each other, and the two copper bar groups have a spacing in the first direction.

8. The power distribution outlet strip structure of claim 1, wherein, The circuit structure is also integrated with an auxiliary power supply and a data acquisition device.

9. An energy storage system characterized by, It comprises: A cabinet body (8); The power distribution plug-in frame structure of any one of claims 1-8 is arranged in the cabinet body (8).

10. The energy storage system of claim 9, wherein, The energy storage system further comprises: A guide rail arranged in the cabinet body (8) and matched with the plug-in frame (1), and the plug-in frame (1) has the freedom of sliding in the first direction.

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