Water and electricity mixed type floor heating system

Abstract

The invention provides a water and electricity mixed type floor heating system, and relates to the technical field of floor heating plates, the water and electricity mixed type floor heating system comprises a plurality of upper plates and lower plates, hot water channels and electric heating channels are formed in the middles of the upper plates and the lower plates respectively, the hot water channels and the electric heating channels are arranged in a staggered mode, and water conveying pipes are arranged in the hot water channels; an electric heating strip is arranged in the electric heating channel; a switching groove is formed in one side of the lower plate, a switching assembly used for switching the connecting direction is arranged on one side of the interior of the switching groove, and a supporting assembly used for locking the switching assembly is arranged on the other side of the interior of the switching groove. The direction of one end of the water conveying pipe can be changed by bending the water conveying pipe, so that butt joint at another angle is performed in cooperation with the switching assembly, the situation that the device cannot be arranged at the corner due to the fixed butt joint angle is avoided, and the device can be suitable for rapid laying of the floor heating plate; the layout of the water pipes is not required to be adjusted after the base is laid, so that the laying efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of floor heating plates, and more specifically, to a hybrid water and electricity floor heating system. Background Art

[0002] In order to facilitate the laying of floor heating, floor heating plates or floor heating modules are used to achieve rapid assembly and use. For example, a new type of overhead floor heating module and its method with the patent publication number CN115045465A, where the polyethylene foam board is arranged on the upper end surface of the floor heating insulation board, the length and width of the polyethylene foam board are the same as those of the floor heating insulation board, metal floor corners are installed above both sides of the floor heating insulation board, and the metal floor corners are used to adjust the height positions of the floor heating insulation board and the polyethylene foam board, and floor heating water pipes are arranged inside the water pipe limiting grooves.

[0003] Although the above floor heating module can arrange the floor heating layout arbitrarily, during the laying process, it is necessary to separate the floor heating module and lay the pipes according to needs, resulting in only a reduction in the number of water pipe fixings compared to the prior art in terms of laying. Therefore, this application designs a hybrid water and electricity floor heating system, which can prefabricate the water pipes in the floor heating plates, and only need to connect adjacent floor heating plates to achieve rapid assembly without arranging the positions of the water pipes again. Summary of the Invention

[0004] Aiming at the deficiencies of the prior art, the present invention provides a hybrid water and electricity floor heating system, which solves the problem of poor assembly efficiency caused by the need to arrange water pipes during the laying of the above floor heating module.

[0005] To achieve the above object, the technical solution adopted by the present invention is as follows: A hybrid water and electricity floor heating system includes a plurality of upper plates and lower plates. The upper plates and the lower plates are respectively provided with combination columns and combination grooves on their plate bodies, and the upper plates and the lower plates are combined through the combination columns and the combination grooves; Hot water channels and electric heating channels are respectively opened in the middle parts of the upper plates and the lower plates. The hot water channels and the electric heating channels are arranged in an alternating manner. A water delivery pipe is arranged inside the hot water channel, and an electric heating strip is arranged inside the electric heating channel; A switching groove is opened on one side of the lower plate. A switching component for switching the connection direction is arranged on one side inside the switching groove, and a supporting component for locking the switching component is arranged on the other side inside the switching groove.

[0006] Preferably, extension grooves are opened on one side of the upper plates and the lower plates. The extension grooves communicate with one side of the hot water channels. A plurality of support columns are arranged inside the extension grooves, and a limiting sliding groove is opened at the bottom of the extension grooves.

[0007] Preferably, an upper groove is opened on the upper side of the electric heating channel, a heat spreader is arranged inside the upper groove, an electric connection ring is installed at the bottom of the heat spreader, the electric connection ring is electrically connected to the electric heating strip, and the upper end of the electric heating strip is connected to the heat spreader.

[0008] Preferably, the transfer assembly includes a movable slide, which is slidably installed inside the limiting slide groove and the switching groove. A transfer channel is arranged inside the movable slide, the upper end of the transfer channel is connected to one end of the water pipe, and a connecting pipe is installed at the outer end of the transfer channel.

[0009] Preferably, a lead-out channel is opened at the center of the hot water channel, the other end of the water pipe extends to the lead-out channel, the lead-out channel and the connecting pipe are sealed and connected via a butt tube, the butt tube body is provided with an insulating frame, and a tube-type terminal is installed inside the insulating frame.

[0010] Preferably, a second power socket is provided at one end of the outlet channel, the second power socket is electrically connected to the tube-type terminal, a second extension channel is opened at the upper end of the second power socket, a second power transmission cable is provided inside the second extension channel, and the second power transmission cable is connected to one side of the power ring.

[0011] Preferably, the support assembly includes a support plug plate and a clamping plate, the support plug plate is inserted into the switching slot, alignment plates and slots are respectively provided on both sides of the support plug plate, locking sleeves and insert strips are respectively provided on both sides of the clamping plate, the insert strips are inserted and matched with the slots, and the switching slot is symmetrically arranged and locking slots are opened at both ends.

[0012] Preferably, the locking sleeve is tightly fitted with the adjacent locking groove, the locking sleeve is located at the outer periphery of the butt tube, the inner wall of the locking sleeve is provided with a first electrical socket, and the first electrical socket is electrically connected to the tube terminal.

[0013] Preferably, a first extension cable is arranged inside the clamping plate, a second extension cable is arranged inside the supporting plug plate, a first docking piece and a second docking piece are arranged inside the plug strip and the slot respectively, the first extension cable is connected to the second extension cable through the first docking piece and the second docking piece, a conductive seat is installed at one end of the second extension cable, an insulating pad is arranged at the bottom of the switching slot, and the bottom of the conductive seat is in contact with the insulating pad.

[0014] Preferably, a first power transmission cable is connected to one side of the power connection ring, a first extension channel is provided between the upper plate and the lower plate, the first power transmission cable passes through the first extension channel and is provided with a power connection terminal, and the power connection terminal is electrically connected to the conductive seat.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. By staggering the electric heating channel and the hot water channel, each part of the water pipe can be close to the electric heating strip to ensure that the subsequent electric heating strip can assist in heating the water pipe. Electric heating can help the water pipe to make an early heating transition, reduce the early heat storage time of the water pipe, and turn off the electric heating strip when the temperature is reached to avoid extra power consumption. Auxiliary heating by the electric heating strip can also avoid the situation in which the water pipe cannot be heated in winter due to freezing inside.

[0016] 2. The limiting slide groove can make the movable slide seat slide inside it, and the connection between the water pipe and the movable slide seat is utilized. During the movement of the movable slide seat, the bending angle of the water pipe can be limited by a number of support columns to avoid folding of the water pipe. The expansion groove is then used to facilitate the bending of the water pipe. The bending of the water pipe can change the direction of one end of the water pipe, so as to cooperate with the adapter assembly to dock at another angle, thereby avoiding the inability to set the application at a corner due to the fixed docking angle. The above structure can make the application suitable for the rapid laying of floor heating panels, without the need for personnel to adjust the layout of the water pipe after laying the base, thereby improving the laying efficiency.

[0017] 3. The power connecting ring can be connected to the first power transmission cable and the second power transmission cable respectively, and the tube-type terminal can be used to connect multiple groups of first power transmission cables and second power transmission cables in series, so that each power connecting ring is connected in series, so that each electric heating strip can obtain electricity and realize auxiliary electric heating operation.

[0018] 4. A transfer channel is provided inside the movable slide seat so that one end of the water pipe can be connected to it, and the derivation channel can be used to connect it to the other end of the water pipe. The connection of the water pipes at both ends can be achieved through the docking tube, so that the present application can connect multiple water pipes in series. The above structure allows laying floor heating panels only through docking tubes, without the need for additional operations, which greatly reduces the laying time. In addition, the tube-type terminals are installed inside the insulating frame, so that the electricity of multiple floor heating panels can be connected together without the need to connect water and electricity separately. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a front view structural schematic diagram of the present invention; Figure 3 yes Figure 2 Schematic diagram of the cross-section structure at AA in the middle; Figure 4 yes Figure 2 Schematic diagram of the cross-section structure at BB in the middle; Figure 5 yesFigure 4 The enlarged structural diagram at a in the middle; Figure 6 yes Figure 4 The enlarged structural diagram at b in the middle; Figure 7 yes Figure 2 Schematic diagram of the cross-section structure at CC; Figure 8 yes Figure 7 The enlarged structural diagram at c in the middle; Figure 9 Is a schematic diagram of the structure of the present invention is a top view; Figure 10 yes Figure 9 Schematic diagram of the cross-section structure at DD in the middle; Figure 11 yes Figure 10 The enlarged structural diagram at d in the middle; Figure 12 yes Figure 2 The enlarged structural diagram at point e in the middle.

[0020] In the figure: 1. upper plate; 101. combination column; 2. lower plate; 201. combination slot; 3. switching slot; 301. insulation pad; 4. adapter assembly; 401. movable slide; 402. adapter channel; 403. connecting pipe; 404. butt-joint pipe; 4041. insulation frame; 4042. tube-type terminal; 5. support assembly; 501. locking slot; 502. locking sleeve; 5021. clamping plate; 5022. first extension cable; 5023. first butt-joint piece; 5024. plug strip; 5025. first power socket; 503. support plug board; 5031. alignment Plate; 5032, second docking piece; 5033, second extension cable; 5034, conductive seat; 5035, slot; 6, electric heating channel; 601, electric heating strip; 602, upper slot; 603, heat spreader; 604, power connection ring; 6041, first extension channel; 6042, first power transmission cable; 6043, power connection terminal; 7, hot water channel; 701, water pipe; 702, outlet channel; 703, second power socket; 704, second extension channel; 705, second power transmission cable; 8, expansion slot; 801, support column; 802, limit slide. DETAILED DESCRIPTION

[0021] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0022] like Figures 1 to 12As shown in the figure, a hybrid hydro - electric floor heating system includes a number of upper plates 1 and lower plates 2. The upper plates 1 and the lower plates 2 are respectively provided with combined columns 101 and combined grooves 201 on their bodies. The upper plates 1 and the lower plates 2 are combined through the combined columns 101 and the combined grooves 201. The combination of the combined columns 101 and the combined grooves 201 enables the upper plates 1 and the lower plates 2 to be combined together. During the production process, after the internal structure is set up, the upper plates 1 and the lower plates 2 are combined, and there is no need to arrange the water pipes 701 again during later use.

[0023] Hot water channels 7 and electric heating channels 6 are respectively opened in the middle parts of the upper plates 1 and the lower plates 2. The hot water channels 7 and the electric heating channels 6 are arranged in an alternating manner. A water pipe 701 is arranged inside the hot water channel 7, and an electric heating strip 601 is arranged inside the electric heating channel 6. Through the alternating arrangement of the electric heating channel 6 and the hot water channel 7, each part of the water pipe 701 can be close to the electric heating strip 601, so as to ensure that the electric heating strip 601 can assist in heating the water pipe 701 in the follow - up. Through the electric heating method, it can help the water pipe 701 to carry out the preliminary heating transition, reduce the preliminary heat storage time of the water pipe 701, and when the temperature reaches, the electric heating strip 601 can be turned off to avoid additional power consumption. And through the auxiliary heating of the electric heating strip 601, it can also avoid the situation that the water pipe 701 cannot be heated due to freezing inside in winter.

[0024] A switching slot 3 is opened on one side of the lower plate 2. A switching component 4 for switching the connection direction is arranged on one side inside the switching slot 3, and a supporting component 5 for locking the switching component 4 is arranged on the other side inside the switching slot 3.

[0025] In this embodiment, an expansion slot 8 is opened on one side of the upper plate 1 and the lower plate 2. The expansion slot 8 communicates with one side of the hot water channel 7. A number of support columns 801 are arranged inside the expansion slot 8, and a limit sliding groove 802 is opened at the bottom of the expansion slot 8.

[0026] Through the limit sliding groove 802, the movable slide seat 401 can slide inside it. And by using the connection between the water pipe 701 and the movable slide seat 401, during the movement of the movable slide seat 401, the bending angle of the water pipe 701 can be restricted by a number of support columns 801 to avoid the folding of the water pipe 701. Among them, the expansion slot 8 is further used to facilitate the bending of the water pipe 701. The ability of the water pipe 701 to be bent can change the direction of one end of the water pipe 701, so as to cooperate with the switching component 4 for docking at another angle, avoiding the situation that this application cannot be set at the corner due to the fixed docking angle. Through the above - mentioned structure, this application can be suitable for the rapid laying of floor heating plates, without the need for personnel to adjust the layout of the water pipes after laying the base, thus improving the laying efficiency.

[0027] In this embodiment, an upper groove 602 is opened on the upper side of the electric heating channel 6, and a heat spreader 603 is arranged inside the upper groove 602. An electric connecting ring 604 is installed at the bottom of the heat spreader 603. The electric connecting ring 604 is electrically connected to the electric heating strip 601, and the upper end of the electric heating strip 601 is connected to the heat spreader 603.

[0028] The power connecting ring 604 can be connected to the first power transmission cable 6042 and the second power transmission cable 705 respectively, and the tube terminal 4042 can be used to connect multiple groups of first power transmission cables 6042 and second power transmission cables 705 in series, so that each power connecting ring 604 is connected in series, so that each electric heating strip 601 can obtain electricity and realize auxiliary electric heating operation.

[0029] In this embodiment, the adapter assembly 4 includes a movable slide 401, which is slidably installed inside the limiting slide groove 802 and the switching groove 3. A transfer channel 402 is arranged inside the movable slide 401. The upper end of the transfer channel 402 is connected to one end of the water pipe 701, and a connecting pipe 403 is installed at the outer end of the transfer channel 402.

[0030] Among them, an outlet channel 702 is opened at the center of the hot water channel 7, and the other end of the water pipe 701 extends to the outlet channel 702. The outlet channel 702 and the connecting pipe 403 are sealed and connected through a docking pipe 404. The butt tube 404 is provided with an insulating frame 4041, and a tube-type terminal 4042 is installed inside the insulating frame 4041.

[0031] By providing a transfer channel 402 inside the movable slide 401, one end of the water pipe 701 can be connected to it, and the export channel 702 can be used to connect to the other end of the water pipe 701. The connection of the water pipes 701 at both ends can be achieved through the docking tube 404, so that the present application can connect multiple water pipes 701 in series. The above-mentioned structure allows laying floor heating panels only through the docking tube 404, without the need for additional operations, which greatly reduces the laying time. In addition, by installing a tube-type terminal 4042 inside the insulating frame 4041, the power of multiple floor heating panels can also be connected together without the need to connect water and electricity separately.

[0032] In the specific configuration, a second power socket 703 is provided at one end of the outlet channel 702, the second power socket 703 is electrically connected to the tube-type terminal 4042, a second extension channel 704 is provided at the upper end of the second power socket 703, a second power transmission cable 705 is provided inside the second extension channel 704, and the second power transmission cable 705 is connected to one side of the power connection ring 604. The second power socket 703 receives the upper-level power transmitted from the tube-type terminal 4042, so that the second power transmission cable 705 transmits its power to the power connection ring 604.

[0033] In this embodiment, the support assembly 5 includes a support plug plate 503 and a clamping plate 5021. The support plug plate 503 is inserted into the switching slot 3. Alignment plates 5031 and slots 5035 are respectively provided on both sides of the support plug plate 503. Locking sleeves 502 and insertion strips 5024 are respectively provided on both sides of the clamping plate 5021. The insertion strips 5024 are inserted and matched with the slots 5035. The switching slot 3 is symmetrically arranged and locking slots 501 are opened at both ends.

[0034] The locking sleeve 502 is tightly fitted with the adjacent locking groove 501 . The locking sleeve 502 is located at the outer periphery of the butt tube 404 . The inner wall of the locking sleeve 502 is provided with a first electrical socket 5025 . The first electrical socket 5025 is electrically connected to the tube terminal 4042 .

[0035] During laying, the docking direction is determined as needed, and the support plug plate 503 is inserted into the switching slot 3. During insertion, the support plug plate 503 will push the movable slide 401 from one end to the other end to achieve preliminary position adjustment. After adjustment, the clamping plate 5021 is inserted to lock the position of the movable slide 401 to ensure that there will be no deviation during subsequent docking of the docking tube 404. The first power socket 5025 can be electrically connected to the tube terminal 4042, so that electricity is connected to the other side of the power ring 604 through the first transmission cable 6042, so as to cooperate with the second transmission cable 705 to achieve series connection.

[0036] It should be noted that a first extension cable 5022 is arranged inside the clamping plate 5021, a second extension cable 5033 is arranged inside the supporting plug plate 503, a first docking piece 5023 and a second docking piece 5032 are arranged inside the plug strip 5024 and the slot 5035 respectively, the first extension cable 5022 is connected to the second extension cable 5033 through the first docking piece 5023 and the second docking piece 5032, a conductive seat 5034 is installed at one end of the second extension cable 5033, an insulating pad 301 is arranged at the bottom of the switching slot 3, and the bottom of the conductive seat 5034 is in contact with the insulating pad 301.

[0037] In order to connect the power of the first power socket 5025 with the first power transmission cable 6042, the first extension cable 5022 is connected through the first power socket 5025, and the first docking piece 5023 and the second docking piece 5032 are fit together by means of the insertion strip 5024 and the slot 5035 to achieve a stable electrical connection, and the second extension cable 5033 is used to make both ends of the conductive base 5034 electrically conductive, wherein the upper end of the conductive base 5034 cooperates with the power terminal 6043 to realize the power-on operation of the first power transmission cable 6042, so that the present application can carry out the power series operation of multiple floor heating panels, and then cooperate with the adapter component 4 to achieve quick docking and laying.

[0038] In the present application, a first power transmission cable 6042 is connected to one side of the power ring 604 , a first extension channel 6041 is opened between the upper plate 1 and the lower plate 2 , the first power transmission cable 6042 passes through the first extension channel 6041 and is installed with a power terminal 6043 , and the power terminal 6043 is electrically connected to the conductive seat 5034 .

[0039] The working principle of this water-electric hybrid floor heating system: When laying the floor heating board, first determine the direction of the adapter assembly 4 according to the laying direction, and then insert the support plug plate 503 into the switching groove 3, wherein the support plug plate 503 will push the movable slide 401 from one end to the other end during insertion to achieve preliminary position adjustment, and then insert the clamping plate 5021 after adjustment to lock the position of the movable slide 401, and then lay the floor heating board on the ground, and then prepare the next floor heating board. When laying the next floor heating board, if it is at a corner position, the support plug plate 503 is inserted into the switching groove 3 from another direction, so that the movable slide 401 is turned 90 degrees, and then the water pipes 701 at both ends are connected by the butt joint pipe 404, wherein the power connection rings 604 at both ends are connected in series by the tube-type terminal 4042; When in use, hot water is received through the frontmost connecting pipe 404, and then flows into the transfer channel 402, the water delivery pipe 701, the outlet channel 702 in sequence, and then enters the next floor heating panel, until the connecting pipe 404 on the rearmost floor heating panel discharges the hot water, thus realizing the circulation of hot water; When in use, first connect the power to the front-end tube terminal 4042, and then transmit the power to the second power socket 703, the second power transmission cable 705, the power ring 604, the first power transmission cable 6042, the power terminal 6043, and the conductive seat 5034 in sequence, and then use the extension cable to connect the power to the first power socket 5025, and then transmit it from another tube terminal 4042 to realize the power supply of the series circuit, so that each electric heating strip 601 can obtain power and realize auxiliary electric heating operation.

[0040] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not limitations on the implementation methods of the present invention. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made on the basis of the above description. It is impossible to list all the implementation methods here. All obvious changes or modifications derived from the technical solution of the present invention are still within the protection scope of the present invention.

Claims

1. A water-electric hybrid floor heating system, comprising a plurality of upper plates (1) and lower plates (2), characterized in that: The upper plate (1) and the lower plate (2) are respectively provided with a combination column (101) and a combination groove (201), and the upper plate (1) and the lower plate (2) are combined via the combination column (101) and the combination groove (201); A hot water channel (7) and an electric heating channel (6) are respectively provided in the middle of the upper plate (1) and the lower plate (2); the hot water channel (7) and the electric heating channel (6) are arranged in a staggered manner; a water pipe (701) is arranged inside the hot water channel (7); and an electric heating strip (601) is arranged inside the electric heating channel (6); A switching groove (3) is provided on one side of the lower plate (2), a switching assembly (4) for switching the connection direction is provided on one side inside the switching groove (3), and a supporting assembly (5) for locking the switching assembly (4) is provided on the other side inside the switching groove (3).

2. A water-electric hybrid floor heating system according to claim 1, characterized in that: An expansion slot (8) is provided on one side of the upper plate (1) and the lower plate (2), the expansion slot (8) is communicated with one side of the hot water channel (7), a plurality of support columns (801) are provided inside the expansion slot (8), and a limiting slide slot (802) is provided at the bottom of the expansion slot (8).

3. A water-electric hybrid floor heating system according to claim 2, characterized in that: An upper groove (602) is provided on the upper side of the electric heating channel (6), a heat spreader (603) is arranged inside the upper groove (602), an electric connection ring (604) is installed at the bottom of the heat spreader (603), the electric connection ring (604) is electrically connected to the electric heating strip (601), and the upper end of the electric heating strip (601) is connected to the heat spreader (603).

4. A water-electric hybrid floor heating system according to claim 3, characterized in that: The transfer assembly (4) comprises a movable slide (401), the movable slide (401) being slidably mounted inside the limiting slide groove (802) and the switching groove (3), a transfer channel (402) being arranged inside the movable slide (401), the upper end of the transfer channel (402) being connected to one end of the water pipe (701), and a connecting pipe (403) being installed at the outer end of the transfer channel (402).

5. A water-electric hybrid floor heating system according to claim 4, characterized in that: An outlet channel (702) is provided at the center of the hot water channel (7), and the other end of the water delivery pipe (701) extends to the outlet channel (702). The outlet channel (702) and the connecting pipe (403) are sealed and butted against each other via a butt pipe (404). The butt pipe (404) is provided with an insulating frame (4041), and a tube-shaped terminal (4042) is installed inside the insulating frame (4041).

6. A water-electric hybrid floor heating system according to claim 5, characterized in that: A second power connection socket (703) is provided at one end of the outlet channel (702), the second power connection socket (703) being electrically connected to the tube-type terminal (4042), a second extension channel (704) being provided at the upper end of the second power connection socket (703), a second power transmission cable (705) being provided inside the second extension channel (704), and the second power transmission cable (705) being connected to one side of the power connection ring (604).

7. The hydroelectric hybrid floor heating system according to claim 5, characterized in that: The support assembly (5) comprises a support plug plate (503) and a clamping plate (5021); the support plug plate (503) is inserted into the switching slot (3); two sides of the support plug plate (503) are respectively provided with an alignment plate (5031) and a slot (5035); two sides of the clamping plate (5021) are respectively provided with a locking sleeve (502) and an inserting strip (5024); the inserting strip (5024) is inserted and matched with the slot (5035); the switching slot (3) is symmetrically arranged and has locking slots (501) at both ends.

8. A water-electric hybrid floor heating system according to claim 7, characterized in that: The locking sleeve (502) is tightly fitted with the adjacent locking groove (501); the locking sleeve (502) is located on the outer periphery of the butt tube (404); a first electrical connection socket (5025) is provided on the inner wall of the locking sleeve (502); and the first electrical connection socket (5025) is electrically connected to the tube-type terminal (4042).

9. A water-electric hybrid floor heating system according to claim 8, characterized in that: A first extension cable (5022) is arranged inside the clamping plate (5021), a second extension cable (5033) is arranged inside the supporting plug plate (503), a first docking piece (5023) and a second docking piece (5032) are arranged inside the plug strip (5024) and the slot (5035), respectively, the first extension cable (5022) is connected to the second extension cable (5033) via the first docking piece (5023) and the second docking piece (5032), a conductive seat (5034) is installed at one end of the second extension cable (5033), an insulating pad (301) is arranged at the bottom of the switching slot (3), and the bottom of the conductive seat (5034) is in contact with the insulating pad (301).

10. A water-electric hybrid floor heating system according to claim 9, characterized in that: A first power transmission cable (6042) is connected to one side of the power connection ring (604); a first extension channel (6041) is provided between the upper plate (1) and the lower plate (2); the first power transmission cable (6042) passes through the first extension channel (6041) and is provided with a power connection terminal (6043); the power connection terminal (6043) is electrically connected to the conductive seat (5034).

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