Wireless charging coil capable of refrigerating
By combining water-cooling components and semiconductor cooling chips, the problem of low charging efficiency of wireless charging devices in low-temperature environments is solved, achieving efficient charging and safety protection in different temperature environments.
Patent Information
- Application Number
- CN202520105080.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-16
- Publication Date
- 2026-01-09
- Estimated Expiration
- 2035-01-16
AI Technical Summary
In low-temperature environments, existing wireless charging devices experience reduced activity of battery active materials, slower chemical reaction rates, resulting in decreased charging and discharging efficiency, increased internal resistance, reduced charging current, and slower charging speed.
The system combines water-cooled components and semiconductor refrigeration chips, and achieves temperature regulation through coolant circulation. The semiconductor refrigeration chips heat the coolant at low temperatures and cool it at high temperatures, ensuring that the charging equipment can operate normally under different temperature conditions.
Heating the charging equipment in low-temperature environments improves charging efficiency and saturation; cooling it in high-temperature environments prevents overheating, ensuring the safety of the charging equipment and extending its service life.
Smart Images

Figure CN223785815U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to wireless power supply technical field especially relates to a refrigeration wireless charging coil. BACKGROUND
[0002] With the continuous development and popularization of wireless charging technology, wireless charging becomes the development direction of electronic product charging technology, wireless charger and the to-be-charged equipment transmit energy through magnetic field, and the two do not need to be connected by charging wire, realize that the to-be-charged equipment and power supply are completely separated, and safety and flexibility are improved.
[0003] Part of the utility model patent in the prior art discloses wireless power supply technical field, wherein the utility model patent with the publication number CN118882231A discloses an integrated wireless charging magnetic suction refrigeration module and wireless charging device, relates to wireless power supply technical field, and includes mutually adhered cold face substrate and hot face substrate, the cold face substrate surface is equipped with annular groove, and the annular groove is equipped with wireless charging coil;Wireless charging coil is sintered to the inside of cold face substrate, compared with traditional adhesive process, the thermal resistance is reduced a lot, and the application performance and service life of the whole product are improved, but the technical scheme still has some deficiencies in the process of use, and the influence of low-temperature environment on the charging equipment cannot be considered, in the low-temperature environment, the activity of the active substance of the built-in battery of the charging equipment is reduced, and the chemical reaction speed is slowed down, which directly affects the charge-discharge efficiency of the battery, and the internal resistance of the battery is affected by low temperature, so that the internal resistance of the battery is increased, the charging current is reduced, and the charging speed is further reduced.
[0004] Based on this, the utility model discloses a refrigeration wireless charging coil to solve the above problems. Utility model content
[0005] The utility model aims at: in order to solve the problem that the existing wireless charging equipment cannot consider the influence of low-temperature environment on the charging equipment, the activity of the active substance of the built-in battery of the charging equipment is reduced in the low-temperature environment, and the chemical reaction speed is slowed down, which directly affects the charge-discharge efficiency of the battery, and the internal resistance of the battery is affected by low temperature, so that the internal resistance of the battery is increased, the charging current is reduced, and the charging speed is further reduced.
[0006] In order to achieve the above object, the utility model adopts the following technical scheme:
[0007] The application discloses a refrigeration wireless charging coil, which comprises a shell, a charging panel is clamped in the upper port of the shell, a supporting frame is connected to the bottom of the charging panel, a charging coil is installed on the inner side of the supporting frame, a water cooling groove is formed in the charging panel, a water cooling assembly is arranged in the water cooling groove and the shell, cooling liquid flows in the water cooling assembly in one direction, a switching assembly for controlling the temperature of the cooling liquid is embedded in the lower port of the bridging box of the water cooling assembly, and the switching assembly and the water cooling assembly are provided with a driving assembly.
[0008] As a further description of the above technical solution:
[0009] The water cooling assembly further comprises a water cooling pipe embedded in the water cooling groove, two perforations are formed in the supporting frame corresponding to the two ends of the water cooling pipe, and the two ends of the water cooling pipe respectively pass through the two perforations and enter the lower part of the supporting frame.
[0010] The bottom of the bridging box is connected to the inner bottom of the shell, cold pipes and hot pipes are respectively communicated with the two side end faces of the bridging box, second one-way valves and first one-way valves are respectively installed on the cold pipes and the hot pipes, one end of the hot pipe is communicated with one end of the water cooling pipe, and the other end of the cold pipe is communicated with the other end of the water cooling pipe.
[0011] As a further description of the above technical solution:
[0012] The inside of the bridging box is sleeved with a piston cover, a plurality of first supporting springs are connected to the piston cover, and the piston cover is elastically supported with the bridging box through the first supporting springs.
[0013] As a further description of the above technical solution:
[0014] The driving assembly comprises a plurality of piston cylinders clamped on the front end face of the bridging box, the end part of the piston cylinder is located above the piston cover, a plurality of piston discs are sleeved in the plurality of piston cylinders, a connecting frame is connected to the plurality of piston discs, a small hydraulic cylinder is installed on the inner bottom of the shell, and the telescopic end of the hydraulic cylinder is connected with the connecting frame.
[0015] As a further description of the above technical solution:
[0016] The switching assembly comprises a plurality of chip plates, a plurality of chip grooves are formed in the chip plates, a plurality of semiconductor refrigeration pieces are installed in the chip plates through the plurality of chip grooves, switching shafts are connected to the two ends of the chip plates, and the chip plates are rotationally connected in the port at the bottom of the bridging box through the two switching shafts.
[0017] As a further description of the above technical solution:
[0018] The end of the switching shaft is connected with a gear, the side end face of the bridge box is slidably connected with a switching plate corresponding to the gear, a plurality of sliding grooves are formed in the switching plate, a sliding block is slidably connected in the sliding groove, the side end face of the sliding block is connected with a second supporting spring, the sliding block is connected with the end face inside the sliding groove through the second supporting spring, and the sliding block is connected to the side end face of the bridge box.
[0019] A plurality of groups of teeth are arranged on the switching plate corresponding to the plurality of gears, the teeth are hingedly connected with the switching plate through a spring hinge, the end of the switching plate is connected with a trigger plate, and the connecting frame is connected with a trigger rod corresponding to the trigger plate.
[0020] Therefore, the utility model has the advantages that:
[0021] 1、In the utility model, the process that the chip board drives the semiconductor refrigerating piece to turn over will push and press the piston cover, the piston cover extrudes the first supporting spring and makes it have elastic deformation, at this time, the semiconductor refrigerating piece releases heat and heats the cooling liquid in the bridge box through the piston cover, the cooling liquid after heating still carries out unidirectional circulation flow, so that the charging equipment can be heated, and the charging equipment in the low temperature environment can be heated successfully and can improve the saturation of charging in the low temperature environment of the charging equipment.
[0022] 2、In the utility model, the refrigerating liquid flowing in the water cooling pipe is introduced into the bridge box for mixing and cooling treatment by the heat pipe, the piston disc is pushed by the connecting frame, the first one-way valve on the heat pipe is closed, the second one-way valve on the cooling pipe is opened, the cooling liquid after mixing and cooling is discharged through the cooling pipe and flows into the water cooling pipe, and the wireless charging equipment can be cooled by unidirectional circulation flow of the low temperature refrigerating liquid, so that the safety charging of the wireless charging equipment is influenced by the temperature being too high, and the normal service life of the built-in energy storage device of the charging equipment is ensured. BRIEF DESCRIPTION OF DRAWINGS
[0023] Figure 1 It is an overall structure schematic view of the wireless charging coil capable of refrigeration provided by the utility model;
[0024] Figure 2 It is a structure schematic view of the wireless charging coil capable of refrigeration after being split provided by the utility model;
[0025] Figure 3 It is a structure schematic view of the wireless charging coil capable of refrigeration from another angle after being split provided by the utility model;
[0026] Figure 4 It is a structure schematic view of the driving assembly in the wireless charging coil capable of refrigeration after being split provided by the utility model;
[0027] Figure 5A refrigeration wireless charging coil is provided in the utility model Figure 4 The structure schematic diagram of the amplification at A in the middle.
[0028] Legend:
[0029] 1, shell; 2, charging panel; 3, charging coil; 4, water cooling tank; 5, water cooling assembly; 501, water cooling pipe; 502, bridging box; 503, piston cover; 504, first support spring; 505, heat pipe; 506, first check valve; 507, cold pipe; 508, second check valve; 6, drive assembly; 601, piston cylinder; 602, piston disc; 603, connecting frame; 604, hydraulic cylinder; 605, trigger rod; 7, switching assembly; 701, chip board; 702, semiconductor refrigeration piece; 703, switching shaft; 704, gear; 705, switching plate; 706, gear tooth; 707, sliding block; 708, second support spring; 709, trigger plate; 8, support frame. DETAILED DESCRIPTION
[0030] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.
[0031] Please refer to the drawings Figure 1 - the drawings Figure 5 The utility model provides a technical scheme: a refrigeration wireless charging coil, including the shell 1, the upper port of shell 1 is connected with the charging panel 2, the bottom of charging panel 2 is connected with the support frame 8, the inside of support frame 8 is installed with the charging coil 3, the water cooling tank 4 is set up in charging panel 2, the water cooling assembly 5 is arranged in water cooling tank 4 and the inside of shell 1, the cooling liquid is unidirectional circulation flow in water cooling assembly 5, the bridging box 502 of water cooling assembly 5 is embedded with the switching assembly 7 for controlling the temperature of cooling liquid in the lower port, and the drive assembly 6 is arranged in water cooling assembly 5 and switching assembly 7.
[0032] Specifically, the water cooling assembly 5 further includes the water cooling pipe 501 embedded in the water cooling tank 4, two perforations are formed in the support frame 8 corresponding to the two ends of the water cooling pipe 501, and the two ends of the water cooling pipe 501 pass through the two perforations into the lower part of the support frame 8.
[0033] The bottom of the bridge box 502 is connected to the inner bottom of the shell 1, the two side end faces of the bridge box 502 are respectively communicated with the cold pipe 507 and the heat pipe 505, the second one-way valve 508 and the first one-way valve 506 are respectively installed on the cold pipe 507 and the heat pipe 505, the other end of the heat pipe 505 is communicated with one end of the water cooling pipe 501, the other end of the cold pipe 507 is communicated with the other end of the water cooling pipe 501, the inside of the bridge box 502 is sleeved with the piston cover 503, a plurality of first supporting springs 504 are connected to the piston cover 503, the piston cover 503 is elastically supported and connected to the inner top of the bridge box 502 through the first supporting springs 504, the driving assembly 6 includes a plurality of piston cylinders 601 clamped to the front end face of the bridge box 502, the end of the piston cylinder 601 is located above the piston cover 503, a plurality of piston discs 602 are sleeved in the plurality of piston cylinders 601, the plurality of piston discs 602 are jointly connected with a connecting frame 603, a small hydraulic cylinder 604 is installed on the inner bottom of the shell 1, and the extension end of the hydraulic cylinder 604 is connected with the connecting frame 603.
[0034] The specific implementation is that: after the charging coil 3 is connected to the power supply, the charging device is placed on the charging panel 2 for wireless charging, the temperature sensor is installed on the charging panel 2, when the charging temperature sensed by the temperature sensor exceeds the set high temperature threshold, the hydraulic cylinder 604 and the semiconductor refrigeration piece 702 are powered on to work, when the direct current passes through the semiconductor refrigeration piece 702 formed by the series connection of two different semiconductor materials, heat can be absorbed and heat can be emitted at the two ends of the electric couple, so that the purposes of refrigeration and heating are achieved, the semiconductor refrigeration piece 702 releases low-temperature energy to the cooling liquid in the bridge box 502 through the piston cover 503 connected thereto, and the hydraulic cylinder 604 drives the plurality of piston discs 602 to do piston movement in the plurality of piston cylinders 601 through the connecting frame 603 in the process, when the connecting frame 603 pulls the piston disc 602, the first one-way valve 506 on the heat pipe 505 is opened, and the second one-way valve 508 on the cold pipe 507 is still in the closed state.
[0035] Specifically, the switching assembly 7 includes a plurality of chip plates 701, a plurality of chip grooves are formed in the chip plate 701, a plurality of semiconductor refrigeration pieces 702 are installed in the plurality of chip grooves, both ends of the chip plate 701 are connected with switching shafts 703, the chip plate 701 is rotationally connected in the port at the bottom of the bridge box 502 through the two switching shafts 703, the end of the switching shaft 703 is connected with a gear 704, the switching plate 705 is slidingly connected to the side end face of the bridge box 502 corresponding to the gear 704, a plurality of sliding grooves are formed in the switching plate 705, a sliding block 707 is slidingly connected in the sliding groove, the side end face of the sliding block 707 is connected with a second supporting spring 708, the sliding block 707 is connected to the end face in the sliding groove through the second supporting spring 708, and the sliding block 707 is connected to the side end face of the bridge box 502.
[0036] A plurality of sets of teeth 706 are arranged on the switching plate 705 corresponding to the plurality of gears 704, the teeth 706 are hinged to the switching plate 705 through spring hinges, the end of the switching plate 705 is connected with a trigger plate 709, and the trigger rod 605 corresponding to the trigger plate 709 is connected to the connecting frame 603.
[0037] Specifically, when the temperature sensor senses that the charging temperature is lower than the set low temperature threshold, the control hydraulic cylinder 604 pushes the connecting frame 603 to increase the extension amount, the hydraulic cylinder 604 pushes the trigger plate 709 through the trigger rod 605 on the connecting frame 603, the trigger plate 709 pushes the switching plate 705 to slide on the sliding block 707 through the sliding groove, and makes the second supporting spring 708 in the sliding groove elastically deform, the switching plate 705 slides in the process to drive a plurality of gears 704 to rotate through a plurality of sets of teeth 706 respectively, the gears 704 twist the chip plate 701 through the switching shaft 703, and the chip plate 701 drives the semiconductor refrigeration sheet 702 to turn over in the process, which pushes and presses the piston cover 503, the piston cover 503 extrudes the first supporting spring 504 to make it elastically deform, at this time, the semiconductor refrigeration sheet 702 releases heat to heat the cooling liquid in the bridge box 502 through the piston cover 503, and in the subsequent retraction stage of the hydraulic cylinder 604, the switching plate 705 is reset under the driving of the reset elastic force of the second supporting spring 708, and when the teeth 706 are subjected to the resistance action of the gears 704, the teeth 706 are turned over through the spring hinges, so as not to drive the gears 704 to rotate.
[0038] Working principle, in use:
[0039] When the temperature sensor senses that the charging temperature is lower than the set low temperature threshold, the hydraulic cylinder 604 pushes the connecting frame 603 to increase its extension amount, the hydraulic cylinder 604 pushes the trigger lever 605 through the trigger lever 605 on the connecting frame 603, the trigger plate 709 pushes the switching plate 705 to slide on the slider 707 through the sliding groove, and makes the second supporting spring 708 in the sliding groove elastically deform, the switching plate 705 slides through the multiple groups of teeth 706 to drive the multiple gears 704 to rotate respectively, the gears 704 twist the chip plate 701 through the switching shaft 703, and the chip plate 701 drives the semiconductor refrigeration piece 702 to flip, which will push the piston cover 503, the piston cover 503 extrudes the first supporting spring 504 to make it elastically deform, at this time, the semiconductor refrigeration piece 702 releases heat to heat the cooling liquid in the bridge box 502 through the piston cover 503, and the heated cooling liquid still flows in a unidirectional cycle, so that the charging equipment can be heated, the charging equipment in a low temperature environment can not only be charged smoothly after being heated, but also can improve the saturation of charging in a low temperature environment.
[0040] When the temperature sensor senses that the charging temperature is lower than the set low temperature threshold, the hydraulic cylinder 604 pushes the connecting frame 603 to increase its extension amount, the hydraulic cylinder 604 pushes the trigger lever 605 through the trigger lever 605 on the connecting frame 603, the trigger plate 709 pushes the switching plate 705 to slide on the slider 707 through the sliding groove, and makes the second supporting spring 708 in the sliding groove elastically deform, the switching plate 705 slides through the multiple groups of teeth 706 to drive the multiple gears 704 to rotate respectively, the gears 704 twist the chip plate 701 through the switching shaft 703, and the chip plate 701 drives the semiconductor refrigeration piece 702 to flip, which will push the piston cover 503, the piston cover 503 extrudes the first supporting spring 504 to make it elastically deform, at this time, the semiconductor refrigeration piece 702 releases heat to heat the cooling liquid in the bridge box 502 through the piston cover 503, and the heated cooling liquid still flows in a unidirectional cycle, so that the charging equipment can be heated, the charging equipment in a low temperature environment can not only be charged smoothly after being heated, but also can improve the saturation of charging in a low temperature environment.
[0041] The above merely is the preferred specific implementation manner of the present utility model, but the protection scope of the present utility model is not limited to this, any skilled person in the technical field according to the technical scheme and the utility model concept of the present utility model is equivalent to replace or change within the technical range disclosed by the present utility model, and should be covered in the protection scope of the present utility model.
Claims
1. A refrigeratable wireless charging coil, comprising a shell (1), a charging panel (2) is clamped in the upper port of the shell (1), a supporting frame (8) is connected to the bottom of the charging panel (2), and a charging coil (3) is installed on the inner side of the supporting frame (8), characterized in that, The water cooling groove (4) is arranged on the charging panel (2), and the water cooling assembly (5) is arranged in the water cooling groove (4) and the shell (1), the cooling liquid flows in the water cooling assembly (5) in one-way circulation, the switching assembly (7) for controlling the temperature of the cooling liquid is embedded in the lower port of the bridge box (502) of the water cooling assembly (5), and the water cooling assembly (5) is provided with the driving assembly (6).
2. The refrigeratable wireless charging coil of claim 1, wherein, The water cooling assembly (5) further comprises the water cooling pipe (501) embedded in the water cooling groove (4), two perforations are arranged on the support frame (8) corresponding to the two ends of the water cooling pipe (501), and the two ends of the water cooling pipe (501) pass through the two perforations and enter the lower part of the support frame (8) respectively. The bottom of the bridge box (502) is connected to the inner bottom of the shell (1), the two side end faces of the bridge box (502) are communicated with the cold pipe (507) and the heat pipe (505) respectively, the second one-way valve (508) and the first one-way valve (506) are arranged on the cold pipe (507) and the heat pipe (505) respectively, the other end of the heat pipe (505) is communicated with one end of the water cooling pipe (501), and the other end of the cold pipe (507) is communicated with the other end of the water cooling pipe (501).
3. The wireless charging coil of claim 2, wherein the wireless charging coil is configured to generate a magnetic field having a magnetic field strength of at least 0.5 mT at a distance of 5 mm from the wireless charging coil. The piston cover (503) is sleeved in the bridge box (502), a plurality of first supporting springs (504) are connected to the piston cover (503), and the piston cover (503) is elastically supported and connected to the inner top of the bridge box (502) through the first supporting springs (504).
4. The refrigeratable wireless charging coil of claim 3, wherein, The driving assembly (6) comprises a plurality of piston cylinders (601) clamped to the front end face of the bridge box (502), the end of the piston cylinder (601) is located above the piston cover (503), a plurality of piston discs (602) are sleeved in the piston cylinders (601), a plurality of piston discs (602) are connected with a connecting frame (603), a small hydraulic cylinder (604) is arranged on the inner bottom of the shell (1), and the telescopic end of the hydraulic cylinder (604) is connected with the connecting frame (603).
5. The refrigeratable wireless charging coil of claim 4, wherein, The switching assembly (7) comprises a plurality of chip plates (701), a plurality of chip grooves are arranged on the chip plate (701), a plurality of semiconductor refrigerating sheets (702) are arranged on the chip plate (701) through the chip grooves, the two ends of the chip plate (701) are connected with switching shafts (703), and the chip plate (701) is rotatably connected in the port at the bottom of the bridge box (502) through the two switching shafts (703).
6. The refrigeratable wireless charging coil of claim 5, wherein, The end of the switching shaft (703) is connected with a gear (704), the switching plate (705) is slidably connected to the side end face of the bridge box (502) corresponding to the gear (704), a plurality of sliding grooves are arranged on the switching plate (705), a sliding block (707) is slidably connected in the sliding groove, the side end face of the sliding block (707) is connected with a second supporting spring (708), the sliding block (707) is connected with the end face of the inner side of the sliding groove through the second supporting spring (708), and the sliding block (707) is connected to the side end face of the bridge box (502). The switching plate (705) is provided with a plurality of sets of teeth (706) corresponding to a plurality of gears (704), the teeth (706) are hinged to the switching plate (705) through a spring hinge, and an end of the switching plate (705) is connected with a trigger plate (709); and the connecting frame (603) is connected with a trigger rod (605) corresponding to the trigger plate (709).
Citation Information
Patent Citations
Integrated wireless charging magnetic suction refrigeration module and wireless charging device
CN118882231A