Household power supply

Abstract

The invention relates to the technical field of power supplies, and discloses a household power supply which comprises an operation box assembly, the operation box assembly comprises a box body, a display screen used for displaying numerical values is installed on the front face of the box body, a wiring end used for wiring is arranged on the back face of the box body, and a stacked power supply assembly is arranged at the bottom of the operation box assembly. The number of the stacked power supply assemblies is selected according to the required capacitance, the stacked power supply assemblies are stacked at the bottom of the operation box assembly, and a base assembly is placed at the bottom of the bottommost stacked power supply assembly; the operation box assembly and the base assembly are necessary components of the power supply, the superposed power supply assemblies are optional components, and the number of the superposed power supply assemblies can be flexibly adjusted according to requirements.

Description

Technical Field

[0001] The present invention relates to the technical field of power supply, in particular to a household power supply. Background Art

[0002] Household electricity is supplied by the municipal power grid, but in some areas prone to power outages or in some areas that use green energy, a household power supply is usually prepared at home. When the household power supply is not in use, it can be connected to solar equipment to store electricity. When there is a power outage, insufficient power supply, or a need to reduce electricity costs, the household power supply can be used directly.

[0003] However, the existing household power supply has a fixed capacity and cannot flexibly adjust the capacity value according to demand. When the demand for electricity is large, this type of household power supply cannot supply power continuously and needs to wait for it to store power, which affects the overall user experience.

[0004] To this end, the present invention provides a household power supply. Summary of the invention

[0005] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0006] The present invention provides a household power supply, including an operation box assembly, wherein the operation box assembly includes a box body, a display screen for displaying numerical values ​​is installed on the front of the box body, and wiring terminals for wiring are arranged on the back of the box body. A superimposed power supply assembly is arranged at the bottom of the operation box assembly, and the number of superimposed power supply assemblies is selected according to the required capacity and stacked at the bottom of the operation box assembly, and a base assembly is placed at the bottom of the superimposed power supply assembly located at the bottom.

[0007] Preferably, the superimposed power supply assembly includes a main plug-in mating structure and an upper plug-in mating structure, the main plug-in mating structure of the superimposed power supply assembly includes a power supply body, a lower fixed ring, a plug socket, a concealed handle, an installation square groove and a second electrical plug connector, the bottom of the power supply body is fixedly connected to the top of the lower fixed ring, the plug socket is fixedly connected to the four corners on the inner side of the lower fixed ring, the installation square groove is opened at the bottom of the power supply body, the second electrical plug connector is fixedly installed on the top wall of the installation square groove, and the structure of the box is the same as the main plug-in mating structure of the superimposed power supply assembly.

[0008] Preferably, the plug-in matching structure on the superimposed power supply assembly includes a baffle, a plug block, a enclosure, and a first electrical plug connector. The baffle is fixedly connected to the four corners of the top of the power supply body. The bottom of the socket is provided with a plug slot that matches the gap with the plug block. The plug block is located on the side of each baffle away from the top center of the power supply body. The first electrical plug connector is installed on the top of the power supply body. The enclosure is fixedly connected to the top of the power supply body, and the enclosure is located on the periphery of the first electrical plug connector.

[0009] By adopting the above technical solution, the upper plug-in matching structure in the superimposed power supply assembly located at the top and the main plug-in matching structure in the superimposed power supply assembly located at the bottom cooperate with each other for positioning.

[0010] Preferably, the base assembly includes a base body, and movable wheels are installed at four corners of the bottom of the base body.

[0011] By adopting the above technical solution, the moving wheels facilitate the movement of the entire power supply.

[0012] Preferably, an upper protective component for protecting the first electrical plug connector is provided on the top of the power supply body, and a lower protective component for protecting the second electrical plug connector is provided on the bottom of the power supply body. When the two superimposed power supply components to be plugged in are connected end to end, the upper protective component and the lower protective component move synchronously to expose the first electrical plug connector and the second electrical plug connector for electrical connection respectively.

[0013] By adopting the above technical solution, the upper protection component and the lower protection component protect the first electrical plug connector and the second electrical plug connector respectively, ensuring effective electrical connection when stacked.

[0014] Preferably, the upper protective assembly includes an upper protective cover and an annular fixing seat, the upper protective cover is slidably connected to the top of the inner wall of the enclosure, the bottom of the other side of the upper protective cover is fixedly connected to a second connecting line, the bottom of the second connecting line is connected to a second trigger assembly, the annular fixing seat is fixedly connected to the top of the power supply body, a trigger rod is movably provided on the top of the annular fixing seat, and a second torsion spring is connected to the bottom of the second trigger assembly.

[0015] Preferably, the upper protective cover includes two support frames, a transition roller is rotatably connected between the two support frames, a cover body is arranged on the outer side of the transition roller, a cross bar is fixedly connected to one side of the cover body, convex blocks are fixedly connected to the front and back sides of the cross bar, sliding grooves that match the clearance of the convex blocks are formed on the inner walls of the front and back sides of the enclosure, a spring is fixedly connected to the other side of the convex block, and the bottom of the cover body is fixedly connected to the top of the second connecting line.

[0016] Preferably, the second trigger assembly includes an outer sleeve, a threaded groove is provided on the outer side of the outer sleeve, a driving rod is movably provided on the inner side of the outer sleeve, a driving block is fixedly connected to the top of the outer side of the driving rod, the outer diameter of the driving block is clearance-matched with the thread width of the threaded groove, a winding roller is fixedly connected to the top of the driving rod, the top of the outer side of the outer sleeve is fixedly connected to the bottom inside the annular fixing seat, and the outer diameter of the trigger rod is the same as the outer diameter of the driving rod.

[0017] Preferably, the lower protective assembly includes a lower protective cover, a first connecting wire is fixedly connected to the bottom of the other side of the lower protective cover, a first trigger assembly is fixedly connected to the other side of the first connecting wire, a first torsion spring is fixedly connected to the top of the first trigger assembly, a second mounting groove transitionally matched with the outer side of the bottom of the first trigger assembly is provided on the other side of the bottom of the power supply body, the outer side of the bottom of the first trigger assembly is fixedly connected to the bottom of the second mounting groove, and a second movable groove gap-matched with the lower protective cover is provided on the other side of the mounting square groove.

[0018] Preferably, the structure of the lower protective cover is the same as that of the upper protective cover, the structure of the first trigger assembly is the same as that of the second trigger assembly, and the center of the top of the trigger rod and the center of the bottom of the first trigger assembly are on the same vertical line.

[0019] The beneficial effects of the present invention are as follows: a household power supply described in the present invention is provided with an operation box assembly, a superimposed power supply assembly and a base assembly, wherein the operation box assembly and the base assembly are essential components of the power supply, and the superimposed power supply assembly is an optional component, and the number of superimposed power supply assemblies can be flexibly adjusted according to demand. When the power demand is not large, some of the superimposed power supply assemblies can be removed to reduce the overall footprint of the power supply; when the power demand is large, a sufficient number of superimposed power supply assemblies can be stacked according to actual conditions to provide stable power supply for a period of time, and the remaining superimposed power supply assemblies in an idle period can perform power storage operations during this period, and then be replaced interchangeably after a period of use, thereby achieving continuous and stable power supply.

[0020] A household power supply described in the present invention is provided with a superimposed power supply component, the plug block and the socket cooperate with each other, the baffle and the socket slot cooperate with each other, and the two superimposed power supply components are guided when they are stacked. When the plug block is fully inserted into the inner side of the socket slot, the top of the power supply body is in close contact with the bottom of the socket. At this time, the first electrical plug connector and the second electrical plug connector are plugged in, making the stacking more stable.

[0021] A household power supply described in the present invention is provided with a lower protective assembly and an upper protective assembly. When two superimposed power supply assemblies are connected end to end, the top of the trigger rod preferentially contacts the bottom of the first trigger assembly, and the top of the trigger rod moves under pressure. The top of the trigger rod pushes the driving rod downward, and the bottom of the trigger rod pushes the center of the first trigger assembly upward, thereby exposing the second electrical plug connector and the first electrical plug connector so that the two superimposed power supply assemblies can be electrically connected. When the trigger rod is not pressurized, that is, the superimposed power supply assembly is in an idle state, the top of the trigger rod loses the squeezing force. Under the action of the second torsion spring and the first torsion spring, the lower protective cover and the upper protective cover are reset to cover the bottom of the installation square groove and the top of the enclosure respectively, thereby protecting the second electrical plug connector and the first electrical plug connector. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a front perspective view of the overall structure of the present invention; Figure 2 It is a back perspective view of the overall structure of the present invention; Figure 3 is a top cross-sectional view of a stacked power supply assembly in the present invention; Figure 4 is a bottom cross-sectional view of a stacked power supply assembly in the present invention; Figure 5 yes Figure 3 A partial enlarged view of the middle part; Figure 6 It is a schematic diagram of the structure of the upper protection assembly in the present invention; Figure 7 It is a structural schematic diagram of the take-up assembly in the present invention; Figure 8 yes Figure 4 A partial enlarged view of point B in the middle.

[0023] Description of reference numerals: 1. Operation box assembly; 101. Box body; 102. Display screen; 103. Terminal; 2. Overlay power supply assembly; 201. Power supply body; 202. Baffle; 203. Plug block; 204. Lower fixing ring; 205. Plug socket; 206. Concealed handle; 207. Fence; 208. First electrical plug connector; 209. Square installation groove; 2010. Second electrical plug connector; 3. Base assembly; 301. Base body; 302. Moving wheel; 4. Lower protection assembly; 401. Lower protection cover; 402. First connection line; 403, first trigger assembly; 404, first torsion spring; 5, upper protection assembly; 501, upper protection cover; 5011, cover body; 5012, cross bar; 5013, convex block; 5014, spring; 5015, support frame; 502, second connecting line; 503, second trigger assembly; 5031, winding roller; 5032, driving rod; 5033, driving block; 5034, outer sleeve; 5035, threaded groove; 504, second torsion spring; 505, annular fixing seat; 506, trigger rod. DETAILED DESCRIPTION

[0024] The subject matter described herein will now be discussed with reference to example embodiments. It should be understood that the discussion of these embodiments is only to enable those skilled in the art to better understand and implement the subject matter described herein, and the functions and arrangements of the elements discussed may be changed without departing from the scope of protection of the contents of this specification. Each example may omit, replace or add various processes or components as needed. In addition, the features described relative to some examples may also be combined in other examples.

[0025] Example

[0026] The following is a further detailed description of the technical solution of the present invention in conjunction with the accompanying drawings and specific embodiments. Figures 1 to 8 , this application provides a household power supply, please refer to Figure 1 and Figure 2 , including an operation box assembly 1, the operation box assembly 1 includes a box body 101, a display screen 102 for displaying numerical values ​​is installed on the front of the box body 101, and a wiring terminal 103 for wiring is arranged on the back of the box body 101, and a superimposed power supply assembly 2 is arranged at the bottom of the operation box assembly 1. The number of superimposed power supply assemblies 2 is selected according to the required capacity and stacked at the bottom of the operation box assembly 1, and a base assembly 3 is placed at the bottom of the superimposed power supply assembly 2 at the bottom.

[0027] Specifically, the operation box assembly 1 and the base assembly 3 are essential components of this power supply, and the superimposed power supply assembly 2 is an optional component. The number of superimposed power supply assemblies 2 can be flexibly adjusted according to demand. When the power demand is not large, some of the superimposed power supply assemblies 2 can be removed to reduce the overall footprint of the power supply; when the power demand is large, a sufficient number of superimposed power supply assemblies 2 can be stacked according to actual conditions to provide stable power supply for a period of time, and the remaining superimposed power supply assemblies 2 that are idle can perform power storage operations during this period, and then be replaced after a period of use, thereby achieving continuous and stable power supply.

[0028] Please refer to Figure 3 , Figure 4 The superimposed power supply assembly 2 includes a main plug-in matching structure and an upper plug-in matching structure. The main plug-in matching structure of the superimposed power supply assembly 2 includes a power supply body 201, a lower fixed ring 204, a socket 205, a concealed handle 206, an installation square groove 209 and a second electrical plug connector 2010. The bottom of the power supply body 201 is fixedly connected to the top of the lower fixed ring 204, the socket 205 is fixedly connected to the four corners on the inner side of the lower fixed ring 204, the installation square groove 209 is opened at the bottom of the power supply body 201, and the second electrical plug connector 2010 is fixedly installed on the top wall of the installation square groove 209. The structure of the box body 101 is the same as the main plug-in matching structure of the superimposed power supply assembly 2.

[0029] Specifically, two adjacent superimposed power supply components 2 are stacked end to end to increase the overall capacity of the power supply. During the stacking process, the upper plug-in mating structure in the superimposed power supply component 2 at the top and the main plug-in mating structure in the superimposed power supply component 2 at the bottom cooperate with each other for positioning.

[0030] Please refer to Figure 3 , Figure 4 The plug-in matching structure on the superimposed power supply component 2 includes a baffle 202, a plug block 203, a fence 207, and a first electrical plug connector 208. The baffle 202 is fixedly connected to the four corners of the top of the power supply body 201. The bottom of the socket 205 is provided with a plug slot that is gap-matched with the plug block 203. The plug block 203 is located on one side of each baffle 202 away from the top center of the power supply body 201. The first electrical plug connector 208 is installed on the top of the power supply body 201. The fence 207 is fixedly connected to the top of the power supply body 201, and the fence 207 is located on the periphery of the first electrical plug connector 208.

[0031] Specifically, a side of the baffle 202 away from the center of the power supply body 201 and a side of the socket 205 close to the center of the power supply body 201 are gap-matched, and the height of the lower fixing ring 204, the height of the socket 205, the height of the baffle 202, the height of the plug block 203 and the height of the plug slot of the socket 205 are all the same. During the end-to-end stacking of the two superimposed power supply components 2, the plug block 203 and the socket 205 cooperate with each other, and the baffle 202 and the plug slot of the socket 205 cooperate with each other to guide the two superimposed power supply components 2 when stacking, and when the plug block 203 is fully inserted into the inner side of the plug slot of the socket 205, the top of the power supply body 201 is in close contact with the bottom of the socket 205, and at this time, the first electrical plug connector 208 and the second electrical plug connector 2010 are plugged in.

[0032] Please refer to Figure 1 , Figure 2 The base assembly 3 includes a base body 301 , and moving wheels 302 are installed at the four corners of the bottom of the base body 301 .

[0033] Specifically, a moving wheel 302 is provided to facilitate the movement of the power supply as a whole.

[0034] Please refer to Figure 3 , Figure 4 The top of the power supply body 201 is provided with an upper protection component 5 for protecting the first electrical plug connector 208, and the bottom of the power supply body 201 is provided with a lower protection component 4 for protecting the second electrical plug connector 2010. When the two superimposed power supply components 2 to be plugged in are connected end to end, the upper protection component 5 and the lower protection component 4 move synchronously to expose the first electrical plug connector 208 and the second electrical plug connector 2010 for electrical connection.

[0035] Specifically, since the idle stacking power supply assembly 2 is not in use and is not in a power storage state, the first electrical plug connector 208 and the second electrical plug connector 2010 are exposed to the outside world and will be contaminated by external dust and moisture, and the metal surface is easily oxidized and corroded, which will increase the contact resistance, reduce the conductivity, and even cause the connection failure. At this time, the first electrical plug connector 208 and the second electrical plug connector 2010 need to be replaced, which will increase the cost of use. By setting the lower protection assembly 4 and the upper protection assembly 5, when the stacking power supply assembly 2 is not in use and is not in a power storage state, the upper protection assembly 5 and the lower protection assembly 4 respectively protect the first electrical plug connector 208 and the second electrical plug connector 2010 to ensure that the electrical connection is effective when stacked.

[0036] Please refer to Figure 5 , Figure 6The upper protective assembly 5 includes an upper protective cover 501 and an annular fixing seat 505. The upper protective cover 501 is slidably connected to the top of the inner wall of the enclosure 207. The bottom of the other side of the upper protective cover 501 is fixedly connected to a second connecting line 502. The bottom of the second connecting line 502 is connected to a second trigger assembly 503. The annular fixing seat 505 is fixedly connected to the top of the power supply body 201. A trigger rod 506 is movably penetrated on the top of the annular fixing seat 505. The bottom of the second trigger assembly 503 is connected to a second torsion spring 504.

[0037] Please refer to Figure 6 The upper protective cover 501 includes two support frames 5015, and a transition roller is rotatably connected between the two support frames 5015. A cover body 5011 is arranged on the outer side of the transition roller. A cross bar 5012 is fixedly connected to one side of the cover body 5011, and convex blocks 5013 are fixedly connected to the front and back sides of the cross bar 5012. The inner walls of the front and back sides of the enclosure 207 are provided with sliding grooves that are gap-matched with the convex blocks 5013. A spring 5014 is fixedly connected to the other side of the convex block 5013, and the bottom of the cover body 5011 is fixedly connected to the top of the second connecting line 502.

[0038] Specifically, one end of the spring 5014 is fixedly connected to the convex block 5013, and the other end of the spring 5014 is fixedly connected to the inner wall of the enclosure 207. The width of the crossbar 5012, the width of the cover 5011, the width of the transition roller and the inner width of the enclosure 207 are all clearance matched. The top of the power source body 201 is provided with a storage groove that is clearance matched with the cover 5011. When the second connecting line 502 pulls the cover 5011 down, the crossbar 5012 moves along the sliding groove to expose the first electrical plug connector 208. In this embodiment, the cover 5011 is made of a flexible material.

[0039] Please refer to Figure 6 , Figure 7 The second trigger assembly 503 includes an outer sleeve 5034, a thread groove 5035 is provided on the outer side of the outer sleeve 5034, a driving rod 5032 is movably provided on the inner side of the outer sleeve 5034, a driving block 5033 is fixedly connected to the top of the outer side of the driving rod 5032, the outer diameter of the driving block 5033 is gap-matched with the thread width of the thread groove 5035, a winding roller 5031 is fixedly connected to the bottom of the driving rod 5032, the top of the outer side of the outer sleeve 5034 is fixedly connected to the bottom of the inner side of the annular fixing seat 505, and the outer diameter of the trigger rod 506 is the same as the outer diameter of the driving rod 5032.

[0040] Specifically, the inner diameter of the outer sleeve 5034 is matched with the outer diameter clearance of the driving rod 5032. When the two superimposed power supply components 2 are connected end to end, the trigger rod 506 is first pressed downward, thereby squeezing the driving rod 5032 to move downward. However, since a driving block 5033 is provided on the outside of the driving rod 5032, and the driving block 5033 is slidably connected to the inner side of the thread groove 5035, under the limitation of the thread groove 5035, the driving rod 5032 rotates and moves downward along the thread groove 5035, thereby driving the winding roller 5031 to rotate and move downward, winding the bottom of the second connecting line 502 on the outside of the winding roller 5031 and storing the cover body 5011 on the inner side of the sliding groove, thereby exposing the first electrical plug connector 208. During this process, the superimposed power supply component 2 itself has a certain weight, which is sufficient to stably press the trigger rod 506 through the weight of the superimposed power supply component 2.

[0041] Please refer to Figure 8 The lower protection component 4 includes a lower protection cover 401, a first connecting line 402 is fixedly connected to the bottom of the other side of the lower protection cover 401, a first trigger component 403 is fixedly connected to the other side of the first connecting line 402, a first torsion spring 404 is fixedly connected to the top of the first trigger component 403, a second installation groove transitionally matched with the outer side of the bottom of the first trigger component 403 is opened on the other side of the bottom of the power supply body 201, the outer side of the bottom of the first trigger component 403 is fixedly connected to the bottom of the second installation groove, and a second movable groove with a clearance match with the lower protection cover 401 is opened on the other side of the installation square groove 209. In this embodiment, the lower protection cover 401 is made of flexible material.

[0042] Specifically, the lower protective cover 401 can move along the second movable groove under the pull of the first connecting line 402, such as Figure 8 As shown, the top wall of the second mounting groove is fixedly connected to the top of the first torsion spring 404, and the top of the inner side of the first trigger assembly 403 moves along the second mounting groove when it rotates and rises. Specifically, in the process of connecting the two superimposed power supply assemblies 2 end to end, the top of the trigger rod 506 preferentially contacts the bottom of the first trigger assembly 403, and the top of the trigger rod 506 moves under pressure, and the top of the trigger rod 506 pushes the driving rod 5032 downward, and the bottom of the trigger rod 506 pushes the center of the first trigger assembly 403 upward, and when the trigger rod 506 is not pressed, that is, the superimposed power supply assembly 2 is in an idle state, the top of the trigger rod 506 loses the squeezing force, and under the action of the second torsion spring 504 and the first torsion spring 404, the lower protective cover 401 and the upper protective cover 501 respectively cover the bottom of the first electrical plug connector 208 and the top of the enclosure 207.

[0043] Please refer to Figure 3 , Figure 4 , Figure 8The structure of the lower protective cover 401 is the same as that of the upper protective cover 501 , the structure of the first trigger assembly 403 is the same as that of the second trigger assembly 503 , and the center of the top of the trigger rod 506 and the center of the bottom of the first trigger assembly 403 are on the same vertical line.

[0044] Specifically, in the process of connecting the two superimposed power supply components 2 to be plugged in, the trigger rod 506 contacts the bottom of the first trigger component 403 to push the inner side of the first trigger component 403 to rotate and rise. The principle is the same as that of the second trigger component 503, so that the second connecting line 502 is wrapped around the outer side of the top of the first trigger component 403, thereby pulling the lower protective cover 401 back to the inside of the power supply body 201 to expose the second electrical plug connector 2010, and at this time, the bottom of the trigger rod 506 presses down to successively trigger the second trigger component 503 to rotate and descend to expose the first electrical plug connector 208, so that when the two superimposed power supply components 2 are completely connected end to end, the top of the annular fixing seat 505 is tightly fitted with the outer bottom of the first trigger component 403, and the second electrical plug connector 2010 and the first electrical plug connector 208 just complete the plug-in action to achieve electrical connection.

[0045] Working principle: The operation box component 1 and the base component 3 are essential components of this power supply, and the superimposed power supply component 2 is an optional component. The number of superimposed power supply components 2 can be flexibly adjusted according to demand; When a new superimposed power supply assembly 2 needs to be stacked, the top operation box assembly 1 is first removed, and then a new superimposed power supply assembly 2 is added on top of the topmost superimposed power supply assembly 2. During the stacking process of the two superimposed power supply assemblies 2, the plug block 203 cooperates with the socket 205, and the baffle 202 cooperates with the socket slot of the socket 205 to guide the stacking of the two superimposed power supply assemblies 2. When the plug block 203 is fully inserted into the inner side of the socket slot of the socket 205, the top of the power supply body 201 is in close contact with the bottom of the socket 205, and the first electrical plug connector 208 and the second electrical plug connector 2010 are plugged in. When the two superimposed power supply components 2 are connected end to end, the top of the trigger rod 506 contacts the bottom of the first trigger component 403 first, and the top of the trigger rod 506 moves under pressure, and the top of the trigger rod 506 pushes the driving rod 5032 to move downward, and the bottom of the trigger rod 506 pushes the center of the first trigger component 403 to move upward, wherein the trigger rod 506 is first pressed downward, thereby squeezing the driving rod 5032 to move downward, but because a driving block 5033 is provided on the outside of the driving rod 5032, and the driving block 5033 is slidably connected to the inner side of the thread groove 5035, under the limitation of the thread groove 5035, the driving rod 5032 rotates and moves downward along the thread groove 5035, thereby driving the winding roller 5031 to rotate and move downward, winding the bottom of the second connecting line 502. It is rolled up on the outside of the winding roller 5031 and the cover body 5011 is stored on the inside of the sliding groove, and the first electrical plug connector 208 is exposed. Then, the trigger rod 506 contacts the bottom of the first trigger component 403 to push the inner side of the first trigger component 403 to rotate and rise. The principle is the same as that of the second trigger component 503, so that the second connecting line 502 is wrapped around the outside of the top of the first trigger component 403, thereby pulling the lower protective cover 401 back to the inside of the power supply body 201 to expose the second electrical plug connector 2010. When the two superimposed power supply components 2 are completely connected end to end, the top of the annular fixing seat 505 is tightly fitted with the bottom of the outer side of the first trigger component 403, and the second electrical plug connector 2010 and the first electrical plug connector 208 just complete the plug-in action to achieve electrical connection.

[0046] An example of the present specific implementation mode is described above, but the present embodiment is not limited to the above-mentioned specific implementation mode, which is merely illustrative and not restrictive. A person skilled in the art may make many forms inspired by the present embodiment, all of which are protected by the present embodiment.

Claims

1. A household power supply, comprising an operation box assembly (1), characterized in that: The operation box assembly (1) comprises a box body (101), a display screen (102) for displaying numerical values ​​is installed on the front of the box body (101), a wiring terminal (103) for wiring is arranged on the back of the box body (101), and a superimposed power supply assembly (2) is arranged at the bottom of the operation box assembly (1). The number of superimposed power supply assemblies (2) is selected according to the required capacity and stacked at the bottom of the operation box assembly (1), and a base assembly (3) is placed at the bottom of the superimposed power supply assembly (2) located at the bottom.

2. A household power supply according to claim 1, characterized in that: The superimposed power supply assembly (2) comprises a main plug-in matching structure and an upper plug-in matching structure. The main plug-in matching structure of the superimposed power supply assembly (2) comprises a power supply body (201), a lower fixing ring (204), a plug seat (205), a concealed handle (206), a mounting square groove (209) and a second electric plug connector (2010). The bottom of the power supply body (201) is fixedly connected to the top of the lower fixing ring (204). The plug seat (205) is fixedly connected to the four corners of the inner side of the lower fixing ring (204). The mounting square groove (209) is provided at the bottom of the power supply body (201). The second electric plug connector (2010) is fixedly mounted on the top wall of the mounting square groove (209). The structure of the box (101) is the same as that of the main plug-in matching structure of the superimposed power supply assembly (2).

3. A household power supply according to claim 2, characterized in that: The plug-in matching structure on the superimposed power supply assembly (2) comprises a baffle (202), an insert block (203), a fence (207), and a first electric plug connector (208); the baffle (202) is fixedly connected to the four corners of the top of the power supply body (201); a plug-in slot that is gap-matched with the insert block (203) is provided at the bottom of the socket (205); the insert block (203) is located on a side of each baffle (202) away from the top center of the power supply body (201); the first electric plug connector (208) is installed on the top of the power supply body (201); the fence (207) is fixedly connected to the top of the power supply body (201); and the fence (207) is located on the periphery of the first electric plug connector (208).

4. A household power supply according to claim 1, characterized in that: The base assembly (3) comprises a base body (301), and movable wheels (302) are installed at four corners of the bottom of the base body (301).

5. A household power supply according to claim 3, characterized in that: An upper protection component (5) for protecting a first electrical plug connector (208) is disposed on the top of the power source body (201), and a lower protection component (4) for protecting a second electrical plug connector (2010) is disposed on the bottom of the power source body (201); during the process of connecting the two superimposed power source components (2) to be connected end to end, the upper protection component (5) and the lower protection component (4) move synchronously to expose the first electrical plug connector (208) and the second electrical plug connector (2010) for electrical connection.

6. A household power supply according to claim 5, characterized in that: The upper protection component (5) comprises an upper protection cover (501) and an annular fixing seat (505); the upper protection cover (501) is slidably connected to the top of the inner wall of the enclosure (207); the bottom of the other side of the upper protection cover (501) is fixedly connected to a second connecting line (502); the bottom of the second connecting line (502) is connected to a second trigger component (503); the annular fixing seat (505) is fixedly connected to the top of the power source body (201); a trigger rod (506) is movably provided on the top of the annular fixing seat (505); and the bottom of the second trigger component (503) is connected to a second torsion spring (504).

7. A household power supply according to claim 6, characterized in that: The upper protective cover (501) comprises two support frames (5015), a transition roller is rotatably connected between the two support frames (5015), a cover body (5011) is arranged on the outer side of the transition roller, a cross bar (5012) is fixedly connected to one side of the cover body (5011), a convex block (5013) is fixedly connected to the front and back sides of the cross bar (5012), a sliding groove that is gap-matched with the convex block (5013) is provided on the inner walls of the front and back sides of the enclosure (207), a spring (5014) is fixedly connected to the other side of the convex block (5013), and the bottom of the cover body (5011) is fixedly connected to the top of the second connecting line (502).

8. A household power supply according to claim 7, characterized in that: The second trigger assembly (503) comprises an outer sleeve (5034), the outer side of the outer sleeve (5034) is provided with a thread groove (5035), the inner side of the outer sleeve (5034) is movably provided with a driving rod (5032), the top of the outer side of the driving rod (5032) is fixedly connected to a driving block (5033), the outer diameter of the driving block (5033) is gap-matched with the thread width of the thread groove (5035), the bottom of the driving rod (5032) is fixedly connected to a winding roller (5031), the top of the outer side of the outer sleeve (5034) is fixedly connected to the bottom of the inner side of the annular fixing seat (505), and the outer diameter of the trigger rod (506) is the same as the outer diameter of the driving rod (5032).

9. A household power supply according to claim 6, characterized in that: The lower protective component (4) comprises a lower protective cover (401), the bottom of the other side of the lower protective cover (401) is fixedly connected to a first connecting line (402), the other side of the first connecting line (402) is fixedly connected to a first trigger component (403), the top of the first trigger component (403) is fixedly connected to a first torsion spring (404), the other side of the bottom of the power supply body (201) is provided with a second mounting groove that transitionally matches with the outer side of the bottom of the first trigger component (403), the outer side of the bottom of the first trigger component (403) is fixedly connected to the bottom of the second mounting groove, and the other side of the mounting square groove (209) is provided with a second movable groove that gap-matches with the lower protective cover (401).

10. A household power supply according to claim 9, characterized in that: The structure of the lower protective cover (401) is the same as that of the upper protective cover (501), the structure of the first trigger component (403) is the same as that of the second trigger component (503), and the center of the top of the trigger rod (506) and the center of the bottom of the first trigger component (403) are on the same vertical line.

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