Small transformer capable of rapidly dissipating heat and used for household appliances
By adopting a combined structure of heat dissipation cold head, water circulation components, capillary network and cooling fan in home appliance transformers, the problems of poor heat dissipation under high load and dust accumulation in socket ports are solved, and the transformer is quickly dissipated and stable operation is achieved, and the transformer is extended. service life.
Patent Information
- Application Number
- CN202420724021.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-10
- Publication Date
- 2024-12-10
- Estimated Expiration
- 2034-04-10
AI Technical Summary
The existing transformers for household appliances have poor heat dissipation effect under high loads, resulting in unstable operation, and the socket ports are prone to dust accumulation, shortening service life.
A rapid heat dissipation structure including a cooling cold head, a water circulation component, a capillary network and a cooling fan is designed to expand the cooling area through the water circulation and a capillary network, combine the heat dissipation fan to accelerate heat dissipation, and prevent dust accumulation through a dust cover and limiting assembly.
It realizes rapid heat dissipation of the transformer under high load, improves operating stability, eliminates safety hazards, and extends service life.
Smart Images
Figure CN222145964U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of transformers, in particular to a small transformer for household appliances with rapid heat dissipation. Background Art
[0002] A transformer is a device that uses the principle of electromagnetic induction to change AC voltage. Its main components include a primary coil, a secondary coil, and an iron core (magnetic core). Its main functions include voltage conversion, current conversion, impedance conversion, isolation, and voltage stabilization (magnetic saturation transformer). Transformers are widely used in power transmission and distribution, power user distribution, electrical equipment withstand voltage (boost) testing, electrical measurement of distribution systems, and relay protection.
[0003] In today's society, many people like to buy electrical appliances produced in other countries. Since different countries have different standards for electrical appliances, the voltages required by electrical appliances are different. Therefore, a small transformer for home appliances is needed to convert the voltage.
[0004] When the transformer load is high, the coil will generate a lot of heat. The current transformer mainly relies on passive airflow and cooling fins to dissipate heat for the coil. The heat dissipation effect is relatively general and cannot ensure rapid heat dissipation of the transformer coil. Under high load, the transformer operation is not so stable and the electrical appliances cannot operate stably, which poses certain safety hazards. On the other hand, the socket of the transformer adopts a direct slot design. When some of the sockets are idle and not in use, a lot of dust will accumulate inside the sockets, causing certain damage to the sockets and reducing the service life of the transformer. Therefore, a small transformer for household appliances with fast heat dissipation is proposed to solve the above problems. Utility Model Content
[0005] In order to make up for the above shortcomings, the utility model provides a small transformer for household appliances with rapid heat dissipation, aiming to improve the problems in the prior art that the transformer cannot quickly dissipate heat and the socket port is prone to dust accumulation.
[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a small transformer for household appliances with fast heat dissipation, comprising an equipment housing, a transformer knob is arranged on the top of the equipment housing, a PCB board is fixedly connected to the inner wall of the back side of the equipment housing, a coil is arranged on the front side of the PCB board, a heat dissipation cold head is contacted on the outer periphery of the coil, a water ring groove is arranged inside the heat dissipation cold head, a heat dissipation tooth plate is fixedly connected inside the water ring groove, a water circulation component is fixedly connected to the top of the water ring groove, an annular barrel is fixedly connected to the bottom front end of the water circulation component, a heat dissipation groove is arranged inside the annular barrel, a capillary network is fixedly connected inside the annular barrel, and a heat dissipation fan is arranged inside the annular barrel.
[0007] As a further description of the above technical solution:
[0008] The left and right sides of the device housing are fixedly connected with sockets, the outer side of the socket is provided with a fixing groove, the left side of the socket is hinged with a dust cover, the front side of the dust cover is fixedly connected with a fixing seat, the inside of the fixing seat is provided with a limiting groove, and the left inner wall of the limiting groove is fixedly connected with a limiting component.
[0009] As a further description of the above technical solution:
[0010] The water circulation component includes a water outlet pipe, the bottom of the rear end of the water outlet pipe is fixedly connected to the top of the heat dissipation cold head, the bottom of the front end of the water outlet pipe is fixedly connected to the top of the annular barrel, the top of the annular barrel is fixedly connected to a water inlet pipe, the bottom of the rear end of the water inlet pipe is fixedly connected to the top of the heat dissipation cold head, and micro water pumps are arranged on the peripheries of the water outlet pipe and the water inlet pipe.
[0011] As a further description of the above technical solution:
[0012] The capillary network is composed of a plurality of groups of hollow thin metal tubes interwoven together, and the inner cavity of the capillary network is connected with the heat dissipation groove.
[0013] As a further description of the above technical solution:
[0014] The bottom of the annular barrel is fixedly connected to the inner wall of the bottom end of the device shell, and the back of the heat dissipation cold head is fixedly connected to the front of the PCB board.
[0015] As a further description of the above technical solution:
[0016] The limiting assembly comprises a limiting spring, the left end of the limiting spring is fixedly connected to the left inner wall of the limiting groove, and the right end of the limiting spring is fixedly connected to the limiting block.
[0017] As a further description of the above technical solution:
[0018] The outer periphery of the limit clamp block is slidably connected to the inside of the limit groove, and the outer periphery of the limit clamp block is clamped to the inside of the fixing groove.
[0019] As a further description of the above technical solution:
[0020] The inner cavity of the capillary network is communicated with the inner side of the heat dissipation groove.
[0021] The utility model has the following beneficial effects:
[0022] 1. In the utility model, the cooling water contact area is increased by arranging heat dissipation teeth and capillary networks, and the heat conduction speed is fast. At the same time, a water inlet pipe and a water outlet pipe are arranged to circulate the water. The cooling fan cools the cooling water and thus cools the coil, thereby accelerating the heat dissipation efficiency and improving the heat dissipation effect, so that the transformer under high load can operate stably, thereby making the electrical appliance operate stably and eliminating safety hazards.
[0023] 2. In the utility model, by setting a fixed seat and a limit block, the dust cover can be opened and closed by pulling the limit block, so that the socket port to be used can be opened. At the same time, the dust cover can prevent dust accumulation, prevent the socket hole from short-circuiting, and increase the service life of the transformer. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] Figure 1 This is a schematic diagram of the overall front view of a small transformer for household appliances with rapid heat dissipation proposed by the utility model;
[0025] Figure 2 This is a schematic diagram of the overall front section of a small transformer for household appliances with rapid heat dissipation proposed by the utility model;
[0026] Figure 3 This is a front cross-sectional schematic diagram of a heat dissipation cold head of a small transformer for household appliances with rapid heat dissipation proposed by the utility model;
[0027] Figure 4 This is a front cross-sectional schematic diagram of a ring-shaped barrel of a small transformer for household appliances with rapid heat dissipation proposed by the utility model;
[0028] Figure 5 This is a schematic diagram of the left side of a socket of a small transformer for household appliances with rapid heat dissipation proposed by the utility model;
[0029] Figure 6 The utility model is a schematic top cross-sectional view of a fixing seat of a small-sized transformer for household appliances with rapid heat dissipation.
[0030] Legend:
[0031] 1. Equipment casing; 2. Voltage-changing knob; 3. PCB board; 4. Coil; 5. Heat sink; 6. Water ring groove; 7. Heat sink gear; 8. Micro water pump; 9. Water outlet pipe; 10. Water inlet pipe; 11. Ring barrel; 12. Heat sink; 13. Capillary network; 14. Cooling fan; 15. Socket; 16. Fixing groove; 17. Dust cover; 18. Fixing seat; 19. Limiting groove; 20. Limiting spring; 21. Limiting block. DETAILED DESCRIPTION
[0032] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0033] Reference Figure 1-Figure 3 The utility model provides an embodiment: a small transformer for household appliances with fast heat dissipation, including a device housing 1 for carrying the device, a voltage conversion knob 2 is arranged on the top of the device housing 1, the voltage conversion knob 2 can adjust the voltage power output by the transformer, and convert the 220V voltage into the voltage used by different household appliances, a PCB board 3 is fixedly connected to the inner wall of the back of the device housing 1, a coil 4 for converting voltage is arranged on the front of the PCB board 3, a heat dissipation cold head 5 is contacted on the outer periphery of the coil 4, and the heat dissipation cold head 5 can quickly conduct the heat on the coil 4, the back of the heat dissipation cold head 5 is fixedly connected to the front of the PCB board 3, a water ring groove 6 is arranged inside the heat dissipation cold head 5, the water ring groove 6 is U-shaped, and is filled with cooling liquid with good thermal conductivity, a heat dissipation tooth plate 7 is fixedly connected inside the water ring groove 6, and the heat dissipation tooth plate 7 is made of a plurality of metal sheets with good thermal conductivity. There is a gap between each layer of metal sheets to accommodate cooling water to pass through, which can greatly increase the contact area between the heat dissipation tooth plate 7 and the cooling water, and improve the heat dissipation efficiency, and a water circulation component for circulating and dissipating cooling water is fixedly connected to the top of the water ring groove 6.
[0034] Reference Figure 2-Figure 4The water circulation component includes a water outlet pipe 9, the bottom of the rear end of the water outlet pipe 9 is fixedly connected to the top of the heat dissipation cold head 5, the bottom of the front end of the water outlet pipe 9 is fixedly connected to the top of the annular barrel 11, the cooling water is discharged from the water ring groove 6 inside the heat dissipation cold head 5 by the water outlet pipe 9, and enters the annular barrel 11, the top of the annular barrel 11 is fixedly connected with a water inlet pipe 10, the bottom of the rear end of the water inlet pipe 10 is fixedly connected to the top of the heat dissipation cold head 5, the cooling water enters the water ring groove 6 inside the heat dissipation cold head 5 from the annular barrel 11 through the water inlet pipe 10, the outer periphery of the water outlet pipe 9 and the water inlet pipe 10 are both provided with a micro water pump 8, the micro water pump 8 provides the power for water circulation, the bottom of the front end of the water circulation component is fixedly connected to the annular barrel 11, the bottom of the annular barrel 11 is fixedly connected Connected to the inner wall of the bottom end of the device housing 1, a heat dissipation groove 12 is opened inside the annular barrel 11. Two groups of heat dissipation grooves 12 are arranged, which are symmetrically arranged inside the annular barrel 11. A capillary network 13 is fixedly connected inside the annular barrel 11. The capillary network 13 is composed of multiple groups of hollow thin metal tubes interwoven to form a capillary effect. When the cooling water contacts the capillary network 13, it will be sucked into the hollow thin metal tubes therein by the capillary network 13, and quickly fill the inside of the capillary network 13. The internal cavity of the capillary network 13 is connected to the inner side of the heat dissipation groove 12, and the internal cavity of the capillary network 13 is connected to the heat dissipation groove 12. A heat dissipation fan 14 is arranged inside the annular barrel 11, and the heat dissipation fan 14 will accelerate the movement of airflow and quickly relieve heat.
[0035] Reference Figure 5-Figure 6 A group of sockets 15 for convenient connection with household appliances are fixedly connected to the left and right sides of the device housing 1, and a fixing groove 16 is provided on the outside of the socket 15. A dust cover 17 is hinged on the left side of the socket 15. When the dust cover 17 and the socket 15 are closed, a through hole is provided on the front side to allow the plug line to pass through. A fixing seat 18 is fixedly connected to the front side of the dust cover 17. A limiting groove 19 is provided inside the fixing seat 18. A limiting component is fixedly connected to the inner wall on the left side of the limiting groove 19. The limiting component includes a limiting spring 2 0, the left end of the limit spring 20 is fixedly connected to the left inner wall of the limit groove 19, and the right end of the limit spring 20 is fixedly connected to the limit block 21. When the limit block 21 is not subjected to force, the limit spring 20 will push the limit block 21 inward, and the outer periphery of the limit block 21 is slidably connected to the inside of the limit groove 19. The limit groove 19 restricts the limit block 21 to only slide left and right along the inside of the limit groove 19. The outer periphery of the limit block 21 is clamped in the inside of the fixing groove 16 to fix the dust cover 17.
[0036] Working principle: when the coil 4 needs to be cooled, the micro water pump 8 and the cooling fan 14 are turned on. At this time, the micro water pump 8 drives the cooling water to flow and enter the water ring groove 6 from the water inlet pipe 10. The cooling water is divided by the heat dissipation teeth 7 in the water ring groove 6, expanding the contact area with the heat source and absorbing the heat from the heat source. Then, the cooling water passes through the water ring groove 6 through the water outlet pipe 9 and enters the heat dissipation groove 12 on the front side of the annular barrel 11. The cooling water contacts the capillary network 13 in the left heat dissipation groove 12 and enters the capillary network 13. The surface area is expanded. At this time, the cooling fan 14 blows air to the capillary network 13 to dissipate heat, so that the cooling water cools down, and then enters the right heat dissipation groove 12 through the capillary network 13, and then enters the water ring groove 6 from the water inlet pipe 10 to complete a water cycle, thereby quickly cooling the coil 4. When you want to reduce dust accumulation at the socket 15, push the limit block 21 outward, the limit block 21 moves outward, and squeezes the limit spring 20 to disengage from the fixing groove 16, rotate the dust cover 17 backward, insert the plug, put the plug wire in the through hole on the front side that allows the plug wire to pass when the dust cover 17 and the socket 15 are closed, close the dust cover 17, and the dust cover 17 can protect other unused sockets to reduce dust accumulation.
[0037] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A small transformer for household appliances with rapid heat dissipation, comprising a device housing (1), characterized in that: A voltage-changing knob (2) is arranged on the top of the device housing (1); a PCB board (3) is fixedly connected to the inner wall of the back side of the device housing (1); a coil (4) is arranged on the front side of the PCB board (3); the outer periphery of the coil (4) contacts a heat dissipation cold head (5); a water ring groove (6) is arranged inside the heat dissipation cold head (5); a heat dissipation tooth plate (7) is fixedly connected inside the water ring groove (6); a water circulation component is fixedly connected to the top of the water ring groove (6); an annular barrel (11) is fixedly connected to the bottom of the front end of the water circulation component; a heat dissipation groove (12) is arranged inside the annular barrel (11); a capillary network (13) is fixedly connected inside the annular barrel (11); and a heat dissipation fan (14) is arranged inside the annular barrel (11).
2. A small transformer for household appliances with rapid heat dissipation according to claim 1, characterized in that: The left and right sides of the device housing (1) are fixedly connected with sockets (15), the outer side of the socket (15) is provided with a fixing groove (16), the left side of the socket (15) is hinged with a dust cover (17), the front side of the dust cover (17) is fixedly connected with a fixing seat (18), the fixing seat (18) has a limiting groove (19) inside, and the left inner wall of the limiting groove (19) is fixedly connected with a limiting component.
3. A small transformer for household appliances with rapid heat dissipation according to claim 1, characterized in that: The water circulation component comprises a water outlet pipe (9), the bottom of the rear end of the water outlet pipe (9) is fixedly connected to the top of the heat dissipation cold head (5), the bottom of the front end of the water outlet pipe (9) is fixedly connected to the top of the annular barrel (11), the top of the annular barrel (11) is fixedly connected to a water inlet pipe (10), the bottom of the rear end of the water inlet pipe (10) is fixedly connected to the top of the heat dissipation cold head (5), and micro water pumps (8) are arranged on the peripheries of the water outlet pipe (9) and the water inlet pipe (10).
4. A small transformer for household appliances with rapid heat dissipation according to claim 1, characterized in that: The capillary network (13) is composed of a plurality of groups of hollow thin metal tubes interwoven together, and the internal cavity of the capillary network (13) is connected to the heat dissipation groove (12).
5. A small transformer for household appliances with rapid heat dissipation according to claim 1, characterized in that: The bottom of the annular barrel (11) is fixedly connected to the inner wall of the bottom end of the device housing (1), and the back of the heat dissipation cold head (5) is fixedly connected to the front of the PCB board (3).
6. A small transformer for household appliances with rapid heat dissipation according to claim 2, characterized in that: The limiting assembly comprises a limiting spring (20), the left end of the limiting spring (20) is fixedly connected to the left inner wall of the limiting groove (19), and the right end of the limiting spring (20) is fixedly connected to the limiting clamping block (21).
7. A small transformer for household appliances with rapid heat dissipation according to claim 6, characterized in that: The outer periphery of the limit clamping block (21) is slidably connected to the interior of the limit groove (19), and the outer periphery of the limit clamping block (21) is clamped to the interior of the fixing groove (16).
8. A small transformer for household appliances with rapid heat dissipation according to claim 2, characterized in that: The inner cavity of the capillary network (13) is connected to the inner side of the heat dissipation groove (12).