Plug-in type connection structure and connection method for household energy storage system

Abstract

The invention relates to a plug-in type connection structure and a connection method for a household energy storage system, and belongs to the field of household energy storage systems, the plug-in type connection structure comprises a plug-in rack and a conductive metal plug-in piece, the plug-in rack comprises a mounting plate, the left and right ends of the front side wall of the mounting plate are fixedly provided with fixing plates, and a plug-in gap is formed between the two fixing plates; the conductive metal insert is embedded in the insertion gap and comprises a first spacer, a second spacer, a third spacer and a fourth spacer which are sequentially arranged from left to right, a first slot is formed between the first spacer and the second spacer, a second slot is formed between the third spacer and the fourth spacer, and a third slot is formed between the second spacer and the third spacer; the left side wall of the first spacer is attached to the fixing plate on the mounting plate, and the right side wall of the fourth spacer is also attached to the fixing plate on the mounting plate. A conductive connecting rod is inserted into the mounting plate, and the front section of the conductive connecting rod is inserted into the third slot. According to the invention, the purpose of improving the cable connection efficiency among the components of the household energy storage system can be achieved.

Description

Technical Field

[0001] The present invention relates to the field of household energy storage systems, and in particular to a plug-in connection structure and a connection method for household energy storage systems. Background Art

[0002] Home energy storage systems are mainly used to store electrical energy, usually through batteries, in order to improve energy efficiency and reduce electricity costs. Home energy storage systems can store electricity from solar panels or power grids and release it when electricity demand peaks. The basic components of home energy storage systems are batteries, inverters, control systems, etc. The components of home energy storage systems are usually connected by cables.

[0003] At present, the connection between the cable and each component is usually carried out by crimping, and the crimping process requires the use of special tools to operate. The whole process is slightly troublesome and time-consuming. Based on this, the present invention provides a plug-in connection structure and connection method for a household energy storage system to simplify the connection structure and connection operation between the components of the household energy storage system, thereby achieving the purpose of improving the cable connection efficiency between the components of the household energy storage system. Summary of the invention

[0004] Based on this, it is necessary to provide a plug-in connection structure for a home energy storage system, including a plug-in rack and a conductive metal plug-in, the plug-in rack includes a vertically arranged mounting plate, the vertical direction of the mounting plate is arranged along the front-to-back direction, the left and right ends of the front side wall of the mounting plate are fixedly provided with fixing plates, the vertical direction of the fixing plate is arranged along the left-to-right direction, and a plug-in gap is formed between the fixing plates on both sides of the mounting plate; the conductive metal plug-in is embedded in the plug-in gap, including a first spacer, a second spacer, a third spacer and a fourth spacer arranged in sequence from left to right, the vertical directions of the first spacer, the second spacer, the third spacer and the fourth spacer are all arranged along the left-to-right direction; the rear ends of the first spacer and the second spacer are connected to each other through a first connecting plate Fixed connection, a first slot is formed between the first spacer and the second spacer, the rear ends of the third spacer and the fourth spacer are fixedly connected to each other through the second connecting plate, a second slot is formed between the third spacer and the fourth spacer, the front sections of the second spacer and the third spacer are fixedly connected to each other through the third connecting plate, and a third slot is formed between the second spacer and the third spacer; the left side wall of the first spacer is fitted in contact with the fixed plate on the mounting plate, and the right side wall of the fourth spacer is also fitted in contact with the fixed plate on the mounting plate; a conductive connecting rod is inserted into the mounting plate corresponding to the third slot, the front section of the conductive connecting rod is inserted into the third slot, and the rear end of the conductive connecting rod extends to the rear side of the mounting plate.

[0005] In the present invention, the plug-in connection structure is used for connecting cables between components in a household energy storage system, wherein the plug-in bracket is used to be fixedly installed on the outer shell of each component, and the conductive metal plug is used to connect the cable and the plug-in bracket, and to conduct the cable and the conductive connecting rod. In the present invention, when installing the plug-in bracket, it is necessary to make the conductive connecting rod on the plug-in bracket conduct with the electrical interface of the component where it is located, wherein the plug-in bracket can be fixedly installed on each component by a bolt connection structure, for example, a plurality of through holes are opened on the mounting plate of the plug-in bracket, and the mounting plate is fixed to the outer shell of each component by screws; the conductive connecting rod can be connected with the conductive interface of the component by abutment or plugging.

[0006] In the present invention, the first slot and the second slot formed on the conductive metal sheet are used for inserting the cable. When inserting the cable, its protective layer needs to be stripped off, and the inner core part of the cable is inserted into the first slot or the second slot to make the cable and the conductive metal sheet conductive; the third slot formed on the conductive metal sheet is used for inserting the conductive connecting rod to make the conductive connecting rod and the conductive metal sheet conductive. Preferably, the width of the first slot and the second slot is slightly smaller than the diameter of the inner core part of the cable, for example, the width of the first slot and the second slot is 94%-98% of the diameter of the inner core part of the cable, so that the inner core part of the cable can be clamped by the conductive metal sheet and firmly connected to each other; also preferably, the width of the third slot is 94%-98% of the diameter of the conductive connecting rod.

[0007] In the present invention, after the cable is connected to the conductive metal sheet, the conductive metal sheet is embedded in the plug-in gap of the plug-in rack to complete the installation of the cable on the component of the home energy storage system. In the process of embedding the conductive metal sheet into the plug-in gap, the fixed plate on the plug-in rack squeezes the conductive metal sheet so that the first spacer, the second spacer, the third spacer and the fourth spacer further compress the cable and the conductive metal rod therebetween, thereby effectively increasing the strength of the connection structure between the cable and the components of the home energy storage system, and achieving the effect of preventing the cable from falling off during the use of the home energy storage system. Preferably, the conductive metal sheet is formed of one-piece copper to have good conductivity and a certain elasticity, thereby facilitating the cable installation process.

[0008] It can be seen that in the present invention, when using cables to connect the components of the home energy storage system, it is only necessary to insert the cables to make the cables firmly connected between the components. Compared with the cable connection using crimping, the cable connection process of the present invention is simple and fast, and can achieve the purpose of improving the cable connection efficiency between the components of the home energy storage system.

[0009] Furthermore, a first convex strip is provided on the right side wall of the first spacer along the front-to-back direction, and a second convex strip is provided on the left side wall of the fourth spacer along the front-to-back direction.

[0010] In the present invention, the first ridges and the second ridges on the first spacer and the second spacer can further clamp the cable after the cable is inserted into the first slot and the second slot, thereby further enhancing the strength of the connection structure between the cable and the conductive metal sheet. At the same time, the presence of the first ridges and the second ridges will squeeze the conductive metal sheet itself, which can further enhance the strength of the connection structure between the conductive metal sheet and the bracket.

[0011] Furthermore, a third ridge is provided on the left side wall of the second spacer along the front-to-back direction, and the third ridge is located behind the first ridge; a fourth ridge is provided on the right side wall of the third spacer along the front-to-back direction, and the fourth ridge is located behind the second ridge.

[0012] In the present invention, the third convex strip and the first convex strip simultaneously extrude the inner core of the cable, and the inner core of the cable can be extruded into a quasi-Z-shaped structure, which can further increase the strength of the connection structure between the cable and the conductive metal sheet. Similarly, the presence of the third convex strip can also further increase the strength of the connection structure between the cable and the conductive metal sheet. At the same time, as described above, the third convex strip and the fourth convex strip can also increase the strength of the connection structure between the conductive metal sheet and the plug-in bracket.

[0013] Preferably, a convex pattern may be provided on the side wall of the fixing plate facing the conductive metal sheet, so that after the conductive metal sheet is squeezed by the cable, it is embedded in the convex pattern to enhance the strength of the connection structure between the conductive metal sheet and the plug-in bracket.

[0014] Furthermore, the conductive metal plug is provided with a first socket passing through it along the left-right direction, the first socket is located on the rear side of the third ridge and the fourth ridge, and the fixed plate is provided with a second socket passing through the fixed plate corresponding to the first socket, and the second socket is coaxially arranged with the first socket.

[0015] In the present invention, the second socket on the fixed plate is used for inserting the rod-shaped structure, wherein, preferably, the second socket is a threaded hole, and correspondingly, the rod-shaped structure for inserting it is a screw. After the screw is inserted into the second socket, it will restrict the conductive metal sheet through the first socket, thereby strengthening the strength of the connection structure between the conductive metal sheet and the bracket.

[0016] Furthermore, baffles are fixedly provided at the upper and lower ends of the front side wall of the mounting plate, the baffles and the fixing plate are fixedly connected to each other, and the baffles, the fixing plate and the mounting plate form a box-like structure with an open front end.

[0017] In the present invention, the baffle plate and the fixing plate are fixedly connected to each other, which can effectively enhance the structural strength of the rack. At the same time, the box-like structure with a front end opening formed by the baffle plate, the fixing plate and the mounting plate can play a certain protective role on the electrical connection structure formed therein.

[0018] Furthermore, a covering structure is also provided on the rack, and the covering structure includes a slide rail fixedly arranged at the front end of the fixed plate, and an upper cover plate and a lower cover plate slidably arranged on the slide rail, the lower end edge of the upper cover plate is provided with a semicircular first half hole and a second half hole, and the upper end edge of the lower cover plate is provided with a semicircular third half hole and a fourth half hole corresponding to the first half hole and the second half hole, the first half hole and the third half hole are combined into a circular first hole, the second half hole and the fourth half hole are combined into a circular second hole, the first hole is located directly in front of the first slot, and the second hole is located directly in front of the second slot.

[0019] In the present invention, the inner diameter of the first hole and the second hole needs to be the same as the diameter of the cable. At this time, after the upper cover plate and the lower cover plate abut against each other, the cable can be clamped in the first hole and the second hole, so that the plug-in rack forms a relatively closed structure, which can effectively prevent the entry of foreign matter and rainwater, and further ensure the stability of the electrical connection structure between the cable and the conductive metal sheet and the conductive connecting rod. It is worth noting that in the process of inserting the cable into the conductive metal sheet and inserting the conductive metal sheet into the plug-in rack, it is necessary to proceed according to the position of the first hole and the second hole formed by the upper cover plate and the lower cover plate to ensure that the first hole and the second hole can be smoothly clamped on the cable.

[0020] Furthermore, the slide rail includes a plurality of connecting columns fixedly arranged at the front end of the fixed plate, the connecting columns are arranged along the front-to-back direction, the width of the connecting columns is smaller than the thickness of the fixed plate, and a limiting plate is fixedly arranged at the front end of the connecting column, and the width of the limiting plate is larger than the width of the connecting column; the upper cover plate and the lower cover plate are provided with card grooves corresponding to the connecting columns, the card grooves are sleeved on the corresponding connecting columns and are tightly fitted with the corresponding connecting columns, and the front side walls and rear side walls of the upper cover plate and the lower cover plate are respectively attached to the rear side wall of the limiting plate and the front end of the fixed plate.

[0021] In the present invention, the upper cover plate and the lower cover plate are connected to the connecting column through the engagement structure of the card slots and the connecting column thereon, so that the upper cover plate and the lower cover plate can be moved up and down. At the same time, after the upper cover plate and the lower cover plate are moved up and down by using external force, the upper cover plate and the lower cover plate can also be fixed in the current position.

[0022] On the other hand, the present invention also provides a connection method for the above-mentioned plug-in connection structure, comprising the following steps: Install the plug-in rack: fix the plug-in rack on the equipment to which the cable needs to be connected; the plug-in rack can be fixedly installed on each component by a bolt connection structure, for example, a plurality of through holes are opened on the mounting plate of the plug-in rack, and the mounting plate is fixed to the housing of each component by screws; Connecting the cable to the conductive metal sheet: removing the protective layer at the end of the cable to expose the inner core portion, and inserting the inner core portion of the cable into the first slot and / or the second slot of the conductive metal sheet; Assemble the plug-in connection structure; insert the conductive metal sheet connected with the cable into the plug-in gap of the plug-in rack, and insert the conductive connecting rod on the plug-in rack into the third slot, then use a screw rod to pass through the second plug hole and the second plug hole at the same time, and make the screw rod threadedly connected with the second plug hole.

[0023] Cover-and-plug connection structure: the upper cover plate and the lower cover plate on the plug-in rack are moved down and up respectively, so that the first half hole, the second half hole, the third half hole and the fourth half hole on the upper cover plate and the lower cover plate are combined into the first hole and the second hole, and at the same time, the first hole and the second hole are respectively stuck on the protective layer of the cable inserted into the first slot and the second slot.

[0024] Furthermore, in the step of connecting the cable and the conductive metal sheet, when the inner core part is inserted into the first slot or the second slot, the inner core part needs to be bent into a "J" shape. At the same time, a screw rod matching the second socket is screwed into the second socket so that the screw rod passes through the first socket and the bent part of the inner core part is hooked on the screw rod.

[0025] In the present invention, when the inner core part of the cable is inserted into the first slot and the second slot, the inner core part is bent into a "J" shape so that the inner core part of the cable can be hooked on the screw rod, and then the conductive metal sheet is embedded into the insertion frame. The squeezing and fixing of the inner core part of the cable by the conductive metal sheet can make the bent structure of the inner core part difficult to be straightened. Therefore, the existence of the screw rod can not only fix the conductive metal sheet and the insertion frame, but also effectively enhance the strength of the connection structure between the cable and the conductive metal sheet.

[0026] The principle and effect of the present invention are further described below in combination with the above technical solutions and the accompanying drawings: In the present invention, when using cables to connect the components of the home energy storage system, it is only necessary to insert the cables to make the cables firmly connected between the components. Compared with the cable connection using crimping, the cable connection process of the present invention is simple and quick, and can achieve the purpose of improving the cable connection efficiency between the components of the home energy storage system. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic structural diagram of the conductive metal sheet according to an embodiment of the present invention; Figure 2 It is a cross-sectional structural schematic diagram of a plug-in connection structure for a household energy storage system according to an embodiment of the present invention; Figure 3 It is a structural schematic diagram of the plug-in connection structure for a household energy storage system according to an embodiment of the present invention when it is installed on a component of the household energy storage system. Reference numerals

[0028] 11-first spacer, 111-first convex strip, 12-second spacer, 121-third convex strip, 13-third spacer, 131-fourth convex strip, 14-fourth spacer, 141-second convex strip, 15-first connecting piece, 16-second connecting piece, 17-third connecting piece, 18-first slot, 19-second slot, 110-third slot, 101-first jack, 21-mounting plate, 22-fixing plate, 221-connecting column, 222-limiting plate, 23-conductive connecting rod, 24-baffle, 32-lower cover, 321-third half hole, 322-fourth half hole, 4-screw, 5-component. DETAILED DESCRIPTION

[0029] In order to facilitate understanding by those skilled in the art, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments: like Figure 1-3, a plug-in connection structure for a household energy storage system, comprising a plug-in rack and a conductive metal plug-in, the plug-in rack comprising a vertically arranged mounting plate 21, the vertical direction of the mounting plate 21 being arranged along the front-to-back direction, the left and right ends of the front side wall of the mounting plate 21 being fixedly provided with fixing plates 22, the vertical direction of the fixing plates 22 being arranged along the left-to-right direction, and a plug-in gap being formed between the fixing plates 22 on both sides of the mounting plate 21; the conductive metal plug-in is embedded in the plug-in gap, comprising a first spacer 11, a second spacer 12, a third spacer 13 and a fourth spacer 14 arranged in sequence from left to right, the vertical directions of the first spacer 11, the second spacer 12, the third spacer 13 and the fourth spacer 14 being arranged along the left-to-right direction; the rear ends of the first spacer 11 and the second spacer 12 are fixedly connected to each other by a first connecting plate 15, the first spacer 11 and the fourth spacer 14 are fixedly connected to each other by a first connecting plate 15, A first slot 18 is formed between the second spacers 12, the rear ends of the third spacer 13 and the fourth spacer 14 are fixedly connected to each other through a second connecting piece 16, a second slot 19 is formed between the third spacer 13 and the fourth spacer 14, the front sections of the second spacer 12 and the third spacer 13 are fixedly connected to each other through a third connecting piece 17, and a third slot 110 is formed between the second spacer 12 and the third spacer 13; the left side wall of the first spacer 11 is arranged in contact with the fixing plate 22 on the mounting plate 21, and the right side wall of the fourth spacer 14 is also arranged in contact with the fixing plate 22 on the mounting plate 21; a conductive connecting rod 23 is inserted into the mounting plate 21 corresponding to the third slot 110, the front section of the conductive connecting rod 23 is inserted into the third slot 110, and the rear end of the conductive connecting rod 23 extends to the rear side of the mounting plate 21.

[0030] In the present invention, the plug-in connection structure is used for connecting the cables between the components 5 in the household energy storage system, wherein the plug-in bracket is used to be fixedly installed on the outer shell of each component 5, and the conductive metal plug is used to connect the cable and the plug-in bracket, and to conduct the cable and the conductive connecting rod 23. In the present invention, when installing the plug-in bracket, it is necessary to make the conductive connecting rod 23 on the plug-in bracket conduct with the electrical interface of the component 5 where it is located, wherein the plug-in bracket can be fixedly installed on each component 5 by a bolt connection structure, for example, a plurality of through holes are opened on the mounting plate 21 of the plug-in bracket, and the mounting plate 21 is fixed to the outer shell of each component 5 by screws; the conductive connecting rod 23 can be connected with the conductive interface of the component 5 by abutment or plugging.

[0031] In the present invention, the first slot 18 and the second slot 19 formed on the conductive metal sheet are used for inserting the cable. When inserting the cable, its protective layer needs to be stripped off, and the inner core of the cable is inserted into the first slot 18 or the second slot 19 to make the cable and the conductive metal sheet conductive; the third slot 110 formed on the conductive metal sheet is used for inserting the conductive connecting rod 23 to make the conductive connecting rod 23 and the conductive metal sheet conductive. Preferably, the width of the first slot 18 and the second slot 19 is slightly smaller than the diameter of the inner core of the cable, for example, the width of the first slot 18 and the second slot 19 is 94%-98% of the diameter of the inner core of the cable, so that the inner core of the cable can be clamped by the conductive metal sheet and firmly connected to each other; preferably, the width of the third slot 110 is 94%-98% of the diameter of the conductive connecting rod 23.

[0032] In the present invention, after the cable is connected to the conductive metal sheet, the conductive metal sheet is embedded in the plug-in gap of the plug-in rack to complete the installation of the cable on the component 5 of the home energy storage system. In the process of embedding the conductive metal sheet into the plug-in gap, the fixed plate 22 on the plug-in rack squeezes the conductive metal sheet so that the first spacer 11, the second spacer 12, the third spacer 13 and the fourth spacer 14 can further compress the cable and the conductive metal rod therebetween, thereby effectively increasing the strength of the connection structure between the cable and the components 5 of the home energy storage system, and achieving the effect of preventing the cable from falling off during the use of the home energy storage system. Preferably, the conductive metal sheet is formed of one-piece copper to have good conductivity and a certain elasticity, thereby facilitating the cable installation process.

[0033] It can be seen that in the present invention, when using cables to connect the components 5 of the home energy storage system, it is only necessary to insert the cables to make the cables firmly connected between the components 5. Compared with the cable connection using crimping, the cable connection process of the present invention is simple and fast, and can achieve the purpose of improving the cable connection efficiency between the components 5 of the home energy storage system.

[0034] In one embodiment, a first convex strip 111 is disposed on the right side wall of the first spacer 11 along the front-to-back direction, and a second convex strip 141 is disposed on the left side wall of the fourth spacer 14 along the front-to-back direction.

[0035] In this embodiment, the first ridge 111 and the second ridge 141 on the first spacer 11 and the second spacer 12 can further clamp the cable after the cable is inserted into the first slot 18 and the second slot 19, thereby further enhancing the strength of the connection structure between the cable and the conductive metal sheet. At the same time, the presence of the first ridge 111 and the second ridge 141 will squeeze the conductive metal sheet itself, which can further enhance the strength of the connection structure between the conductive metal sheet and the bracket.

[0036] In one embodiment, a third ridge 121 is provided on the left side wall of the second spacer 12 along the front-to-back direction, and the third ridge 121 is located on the rear side of the first ridge 111; a fourth ridge 131 is provided on the right side wall of the third spacer 13 along the front-to-back direction, and the fourth ridge 131 is located on the rear side of the second ridge 141.

[0037] In this embodiment, the third convex strip 121 and the first convex strip 111 simultaneously extrude the inner core of the cable, and the inner core of the cable can be extruded into a quasi-Z-shaped structure, which can further increase the strength of the connection structure between the cable and the conductive metal sheet. Similarly, the presence of the third convex strip 121 can also further increase the strength of the connection structure between the cable and the conductive metal sheet. At the same time, as described above, the third convex strip 121 and the fourth convex strip 131 can also increase the strength of the connection structure between the conductive metal sheet and the plug-in bracket.

[0038] Preferably, a convex pattern may be provided on the side wall of the fixing plate 22 facing the conductive metal sheet, so that after the conductive metal sheet is squeezed by the cable, it is embedded in the convex pattern to enhance the strength of the connection structure between the conductive metal sheet and the plug-in bracket.

[0039] In one embodiment, the conductive metal plug is provided with a first socket 101 passing through it along the left-right direction, the first socket 101 is located at the rear side of the third ridge 121 and the fourth ridge 131, and the fixing plate 22 is provided with a second socket corresponding to the first socket 101 and passing through the fixing plate 22, and the second socket is coaxially arranged with the first socket 101.

[0040] In this embodiment, the second hole on the fixing plate 22 is used for inserting the rod-shaped structure, wherein preferably, the second hole is a threaded hole, and correspondingly, the rod-shaped structure for inserting it is a screw 4. After the screw 4 is inserted into the second hole, it will restrict the conductive metal sheet through the first hole 101, thereby strengthening the strength of the connection structure between the conductive metal sheet and the bracket.

[0041] In one embodiment, a baffle 24 is fixedly provided at the upper and lower ends of the front side wall of the mounting plate 21, and the baffle 24 and the fixing plate 22 are fixedly connected to each other, and the baffle 24, the fixing plate 22 and the mounting plate 21 form a box-like structure with an open front end.

[0042] In this embodiment, the baffle 24 and the fixed plate 22 are fixedly connected to each other, which can effectively enhance the structural strength of the rack. At the same time, the box-like structure with a front end opening formed by the baffle 24, the fixed plate 22 and the mounting plate 21 can play a certain protective role for the electrical connection structure formed therein.

[0043] In one embodiment, a covering structure is further provided on the rack, and the covering structure includes a slide rail fixedly arranged at the front end of the fixed plate 22, and an upper cover plate and a lower cover plate 32 slidably arranged on the slide rail, the lower end edge of the upper cover plate is provided with a semicircular first half hole and a second half hole, and the upper end edge of the lower cover plate 32 is provided with a semicircular third half hole 321 and a fourth half hole 322 corresponding to the first half hole and the second half hole, the first half hole and the third half hole 321 are combined into a circular first hole, the second half hole and the fourth half hole 322 are combined into a circular second hole, the first hole is located directly in front of the first slot 18, and the second hole is located directly in front of the second slot 19.

[0044] In this embodiment, the inner diameter of the first hole and the second hole needs to be the same as the diameter of the cable. At this time, after the upper cover plate and the lower cover plate 32 abut against each other, the cable can be clamped in the first hole and the second hole, so that the plug-in rack forms a relatively closed structure, which can effectively prevent the entry of foreign matter and rainwater, and further ensure the stability of the electrical connection structure between the cable and the conductive metal sheet and the conductive connecting rod 23. It is worth noting that in the process of inserting the cable into the conductive metal sheet and the conductive metal sheet into the plug-in rack, it is necessary to proceed according to the positions of the first hole and the second hole formed by the upper cover plate and the lower cover plate 32 to ensure that the first hole and the second hole can be smoothly clamped on the cable.

[0045] In one embodiment, the slide rail includes a plurality of connecting columns 221 fixedly arranged at the front end of the fixed plate 22, the connecting columns 221 are arranged along the front-to-back direction, the width of the connecting columns 221 is smaller than the thickness of the fixed plate 22, and a limiting plate 222 is fixedly arranged at the front end of the connecting column 221, and the width of the limiting plate 222 is larger than the width of the connecting column 221; the upper cover plate and the lower cover plate 32 are provided with card grooves corresponding to the connecting columns 221, the card grooves are sleeved on the corresponding connecting columns 221 and are tightly fitted with the corresponding connecting columns 221, and the front side walls and rear side walls of the upper cover plate and the lower cover plate 32 are respectively arranged to fit the rear side walls of the limiting plate 222 and the front end of the fixed plate 22.

[0046] In this embodiment, the upper cover plate and the lower cover plate 32 are connected to the connecting column 221 through the card slots thereon and the card engagement structure of the connecting column 221, so that the upper cover plate and the lower cover plate 32 can be moved up and down. At the same time, after using external force to move the upper cover plate and the lower cover plate 32 up and down, the upper cover plate and the lower cover plate 32 can also be fixed in the current position.

[0047] On the other hand, the present invention also provides a connection method for the above-mentioned plug-in connection structure, comprising the following steps: Install the plug-in rack: fix the plug-in rack on the equipment to which the cable needs to be connected; the plug-in rack can be fixedly installed on each component 5 by a bolt connection structure, for example, a plurality of through holes are opened on the mounting plate 21 of the plug-in rack, and the mounting plate 21 is fixed to the housing of each component 5 by screws; Connect the cable to the conductive metal sheet: remove the protective layer at the end of the cable to expose the inner core, and insert the inner core of the cable into the first slot 18 and / or the second slot 19 of the conductive metal sheet; Assemble the plug-in connection structure; insert the conductive metal sheet connected to the cable into the plug-in gap of the rack, and insert the conductive connecting rod 23 on the rack into the third slot 110, then use the screw 4 to pass through the second socket and the second socket at the same time, and make the screw 4 threadedly connected to the second socket.

[0048] Covering and plug-in connection structure: the upper cover plate and the lower cover plate 32 on the plug-in rack are moved down and up respectively, so that the first half hole, the second half hole, the third half hole 321 and the fourth half hole 322 on the upper cover plate and the lower cover plate 32 are combined into the first hole and the second hole, and at the same time, the first hole and the second hole are respectively stuck on the protective layer of the cable inserted into the first slot and the second slot.

[0049] In one embodiment, in the step of connecting the cable and the conductive metal sheet, when the inner core part is inserted into the first slot 18 or the second slot 19, the inner core part needs to be bent into a "J" shape. At the same time, a screw rod 4 matching the second socket is screwed into the second socket, so that the screw rod 4 passes through the first socket 101 and the bent part of the inner core part is hooked on the screw rod 4.

[0050] In this embodiment, when the inner core part of the cable is inserted into the first slot 18 and the second slot 19, the inner core part of the cable can be hooked on the screw 4 by bending the inner core part into a "J" shape, and then the conductive metal sheet is embedded into the bracket. The squeezing and fixing of the inner core part of the cable by the conductive metal sheet can make the bent structure of the inner core part difficult to be straightened. Therefore, the existence of the screw 4 can not only fix the conductive metal sheet and the bracket, but also effectively enhance the strength of the connection structure between the cable and the conductive metal sheet.

[0051] The above embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for those of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A plug-in connection structure for a household energy storage system, characterized in that: The invention comprises a plug-in rack and a conductive metal plug-in sheet, wherein the plug-in rack comprises a vertically arranged mounting plate, wherein the vertical direction of the mounting plate is arranged along the front-to-back direction, and the left and right ends of the front side wall of the mounting plate are fixedly provided with fixing plates, wherein the vertical direction of the fixing plates is arranged along the left-to-right direction, and a plug-in gap is formed between the fixing plates on both sides of the mounting plate; the conductive metal plug-in sheet is embedded in the plug-in gap, and comprises a first spacer, a second spacer, a third spacer and a fourth spacer arranged in sequence from left to right, wherein the vertical directions of the first spacer, the second spacer, the third spacer and the fourth spacer are all arranged along the left-to-right direction; the rear ends of the first spacer and the second spacer are fixedly connected to each other by a first connecting sheet, and the first spacer and the A first slot is formed between the second spacers, the rear ends of the third spacer and the fourth spacer are fixedly connected to each other through the second connecting plate, a second slot is formed between the third spacer and the fourth spacer, the front sections of the second spacer and the third spacer are fixedly connected to each other through the third connecting plate, and a third slot is formed between the second spacer and the third spacer; the left side wall of the first spacer is fitted in contact with the fixed plate on the mounting plate, and the right side wall of the fourth spacer is also fitted in contact with the fixed plate on the mounting plate; a conductive connecting rod is inserted into the mounting plate corresponding to the third slot, the front section of the conductive connecting rod is inserted into the third slot, and the rear end of the conductive connecting rod extends to the rear side of the mounting plate.

2. A plug-in connection structure for a household energy storage system according to claim 1, characterized in that: A first convex strip is arranged on the right side wall of the first separator along the front-to-back direction, and a second convex strip is arranged on the left side wall of the fourth separator along the front-to-back direction.

3. A plug-in connection structure for a household energy storage system according to claim 2, characterized in that: A third ridge is arranged on the left side wall of the second spacer along the front-to-back direction, and the third ridge is located behind the first ridge; a fourth ridge is arranged on the right side wall of the third spacer along the front-to-back direction, and the fourth ridge is located behind the second ridge.

4. A plug-in connection structure for a household energy storage system according to claim 3, characterized in that: The conductive metal plug is provided with a first plug hole penetrating therethrough along the left-right direction, the first plug hole is located at the rear side of the third convex strip and the fourth convex strip, the fixing plate is provided with a second plug hole penetrating the fixing plate corresponding to the first plug hole, and the second plug hole is coaxially arranged with the first plug hole.

5. A plug-in connection structure for a household energy storage system according to claim 4, characterized in that: The second insertion hole is a threaded hole.

6. A plug-in connection structure for a household energy storage system according to claim 5, characterized in that: Baffles are also fixedly arranged at the upper and lower ends of the front side wall of the mounting plate. The baffles and the fixing plate are fixedly connected to each other, and the baffles, the fixing plate and the mounting plate form a box-shaped structure with an open front end.

7. A plug-in connection structure for a household energy storage system according to claim 6, characterized in that: The rack is also provided with a covering structure, which includes a slide rail fixedly arranged at the front end of the fixed plate, and an upper cover plate and a lower cover plate slidably arranged on the slide rail, the lower end edge of the upper cover plate is provided with a first semicircular half hole and a second semicircular half hole, the upper end edge of the lower cover plate is provided with a third semicircular half hole and a fourth semicircular half hole corresponding to the first half hole and the second half hole, the first half hole and the third half hole are combined into a first circular hole, the second half hole and the fourth half hole are combined into a second circular hole, the first hole is located directly in front of the first slot, and the second hole is located directly in front of the second slot.

8. A plug-in connection structure for a household energy storage system according to claim 7, characterized in that: The slide rail includes a plurality of connecting columns fixedly arranged at the front end of the fixing plate, the connecting columns are arranged along the front-to-back direction, the width of the connecting columns is smaller than the thickness of the fixing plate, and a limiting plate is fixedly arranged at the front end of the connecting column, the width of the limiting plate is larger than the width of the connecting column; the upper cover plate and the lower cover plate are provided with card slots corresponding to the connecting columns, the card slots are sleeved on the corresponding connecting columns and are tightly fitted with the corresponding connecting columns, and the front side walls and rear side walls of the upper cover plate and the lower cover plate are respectively attached to the rear side wall of the limiting plate and the front end of the fixing plate.

9. A connection method of the plug-in connection structure according to claim 8, characterized in that: The steps include: Install the plug-in bracket: fix the plug-in bracket on the equipment that needs to be connected with the cable; Connecting the cable to the conductive metal sheet: removing the protective layer at the end of the cable to expose the inner core portion, and inserting the inner core portion of the cable into the first slot and / or the second slot of the conductive metal sheet; Assembling the plug-in connection structure; inserting the conductive metal sheet connected with the cable into the plug-in gap of the plug-in rack, and inserting the conductive connecting rod on the plug-in rack into the third slot, and then using a screw rod to simultaneously pass through the second plug hole and the second plug hole, and making the screw rod threadedly connected with the second plug hole; Cover-and-plug connection structure: the upper cover plate and the lower cover plate on the plug-in rack are moved down and up respectively, so that the first half hole, the second half hole, the third half hole and the fourth half hole on the upper cover plate and the lower cover plate are combined into the first hole and the second hole, and at the same time, the first hole and the second hole are respectively stuck on the protective layer of the cable inserted into the first slot and the second slot.

10. A connection method according to claim 9, characterized in that: In the step of connecting the cable and the conductive metal sheet, when the inner core part is inserted into the first slot or the second slot, the inner core part needs to be bent into a "J" shape. At the same time, a screw rod matching the second socket is screwed into the second socket so that the screw rod passes through the first socket and the bent part of the inner core part is hooked on the screw rod.

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