Heating structure of a water heating blanket

Abstract

The present application relates to the technical field of water heating blanket, and discloses a heating structure of water heating blanket, which comprises a water tank, wherein the water tank comprises a cover-shaped body with an opening upward and a circulation part communicated with the body; the circulation main pipe comprises a first circulation pipe, a heating pipe and a second circulation pipe communicated in sequence; the second circulation pipe, the circulation part, the water outlet pipe, the circulation pump and the first circulation pipe are communicated in sequence; the heating shell is communicated with the first circulation pipe and used for heating the liquid in the first circulation pipe.

Description

Technical Field

[0001] This invention relates to the field of water-heated blanket technology, and more specifically to a heating structure for a water-heated blanket. Background Technology

[0002] Water-heated blankets, also known as water-circulating electric blankets, are a type of electric blanket that uses water circulation for heating. Common water-heated blankets include a blanket body and a heating structure for heating the blanket body. This heating structure typically includes a water tank located outside the blanket body, a heating element (usually electrically heated) for heating the water in the tank, a pump for driving the water flow in the tank, and water pipes for water circulation. Some water pipes are located outside the blanket body, and some are located inside. The water pipes inside the blanket body (usually meandering or spiral-shaped) are used to raise the temperature of the blanket body. Summary of the Invention

[0003] In view of this, the purpose of the present invention is to provide a heating structure for a water-heated blanket to achieve the effect of saving energy.

[0004] To achieve the above objectives, the present invention provides a heating structure for a water-heated blanket, comprising:

[0005] A water tank, the water tank comprising a cover-shaped body with an opening facing upwards and a circulation section communicating with the body;

[0006] A circulation main pipe, comprising a first circulation pipe, a heating pipe, and a second circulation pipe connected in sequence;

[0007] The outlet pipe and the circulation pump are connected in sequence, and the second circulation pipe, the circulation section, the outlet pipe, the circulation pump, and the first circulation pipe are connected in sequence.

[0008] A heating shell, which is connected to the first circulation pipe, is used to heat the liquid in the first circulation pipe.

[0009] Furthermore, it also includes a connecting pipe, the two ends of which are respectively connected to the bottom of the main body and the bottom of the circulation section.

[0010] Furthermore, the connecting tube is U-shaped with its opening facing upwards.

[0011] Furthermore, the circulation section includes a first cavity and a second cavity that communicate with each other. The first cavity communicates with the side of the second cavity, the first cavity communicates with the second circulation pipe and the water outlet pipe, and the second cavity communicates with the connecting pipe.

[0012] Furthermore, the second circulation pipe is connected to the side of the first cavity, the water outlet pipe is connected to the bottom of the first cavity, a baffle plate is vertically installed on the inner wall of the first cavity, one end of the second circulation pipe connected to the first cavity is directly opposite the baffle plate, and the bottom of the baffle plate is lower than the connection between the connecting pipe and the second cavity.

[0013] Furthermore, there is a set distance between the baffle plate and the second cavity.

[0014] Furthermore, a cylindrical partition is vertically arranged inside the main body. The bottom of the partition is connected to the main body, and a connecting part is provided on the inner ring of the top. The circulation part is connected to the inner side of the connecting part, and a set gap is provided between the inner wall of the partition and the outer wall of the circulation part.

[0015] Furthermore, a plurality of reinforcing elements are provided at intervals between the outer wall of the circulation section and the inner wall of the partition section.

[0016] Furthermore, it also includes a sealing cap, the bottom periphery of which is vertically provided with an overlapping part, the overlapping part being attached to the outer wall of the body, the top of which is vertically provided with a water inlet pipe, the water inlet pipe being connected to the body, the top of which is provided with a dust cover, and the dust cover having an air vent.

[0017] Furthermore, the top of the connecting part is lower than the sealing cover, and the lower side of the sealing cover is vertically provided with a blocking part. The cross-section of the blocking part is annular, and the inner wall of the blocking part is provided with a number of stabilizing parts at intervals.

[0018] The beneficial effects of the heating structure of the water-heated blanket provided by the present invention are as follows: when in use, the heating part is located inside the blanket body in a meandering or spiral shape, which is consistent with the prior art; at the same time, the heating shell is preferably a conventional PTC pipe heater on the market, or an electric heating wire is provided in the heating shell for heating water (a leakage protection device is set at the power supply to improve safety), or other conventional structures that can heat water or liquids.

[0019] Water in the tank flows into the circulation section. When the circulation pump starts, the water in the circulation section is driven through the outlet pipe into the circulation pump, then sequentially flows into the first circulation pipe (passing through the heating shell), the heating section, and the second circulation pipe, before flowing back into the circulation section. This ensures that the temperature of the blanket is maintained at the required level. Because this application requires a smaller amount of water to heat—primarily only the water in the circulation section and the main circulation pipe—its heating efficiency is higher, allowing for faster use, shorter waiting times, and better performance. Furthermore, the smaller total amount of water required for heating reduces heat waste and improves energy efficiency. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of an embodiment of the heating structure of a water-heated blanket provided by the present invention. Figure 1 ;

[0021] Figure 2 yes Figure 1 Enlarged view of section A;

[0022] Figure 3 This is a schematic diagram of an embodiment of the heating structure of a water-heated blanket provided by the present invention. Figure 2 ;

[0023] Figure 4 yes Figure 3 Enlarged view of section B;

[0024] Figure 5 This is a cross-sectional view of an embodiment of the heating structure of a water-heated blanket provided by the present invention;

[0025] Figure 6 yes Figure 5 Enlarged view of section C;

[0026] Figure 7 yes Figure 5 Enlarged view of section D;

[0027] Figure 8 This is a schematic diagram of an embodiment of the water tank in the heating structure of a water-heated blanket provided by the present invention;

[0028] Figure 9 yes Figure 8 Enlarged view of section E in the middle;

[0029] Figure 10 This is a cross-sectional view of an embodiment of the water tank in the heating structure of a water-heated blanket provided by the present invention. Figure 1 ;

[0030] Figure 11This is a cross-sectional view of an embodiment of the water tank in the heating structure of a water-heated blanket provided by the present invention. Figure 2 ;

[0031] Figure 12 This is a schematic diagram of an embodiment of the sealing cover in the heating structure of a water-heated blanket provided by the present invention.

[0032] The diagram is labeled as follows: 1. Water tank; 1a. Main body; 1b. Circulation section; 1b1. First cavity; 1b2. Second cavity; 1c. Baffle plate; 1d. Separator; 1e. Connecting part; 1f. Reinforcing body; 2. First circulation pipe; 3. Second circulation pipe; 4. Water outlet pipe; 5. Circulation pump; 6. Heating shell; 7. Connecting pipe; 8. Sealing cover; 9. Overlapping part; 10. Water inlet pipe; 11. Dust cover; 12. Vent; 13. Baffle part; 14. Stabilizing part. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0034] like Figures 1 to 12 As shown,

[0035] A heating structure for a water-heated blanket includes,

[0036] Water tank 1, the water tank 1 includes a cover-shaped body 1a with an opening facing upward and a circulation part 1b communicating with the body 1a;

[0037] A circulation main pipe, comprising a first circulation pipe 2, a heating pipe, and a second circulation pipe 3 connected in sequence;

[0038] The water outlet pipe 4 and the circulation pump 5 are connected in sequence to the second circulation pipe 3, the circulation part 1b, the water outlet pipe 4, the circulation pump 5, and the first circulation pipe 2.

[0039] Heating shell 6, which is connected to the first circulation pipe 2, is used to heat the liquid in the first circulation pipe 2.

[0040] It also includes a connecting pipe 7, the two ends of which are connected to the bottom of the main body 1a and the bottom of the circulation part 1b, respectively. The connecting pipe 7 is U-shaped with its opening facing upwards.

[0041] The circulation section 1b includes a first cavity 1b1 and a second cavity 1b2 that communicate with each other. The first cavity 1b1 communicates with the side of the second cavity 1b2. The first cavity 1b1 is connected to the second circulation pipe 3 and the outlet pipe 4. The second cavity 1b2 is connected to the connecting pipe 7. The second circulation pipe 3 is connected to the side of the first cavity 1b1, and the outlet pipe 4 is connected to the bottom of the first cavity 1b1. A baffle plate 1c is vertically arranged on the inner wall of the first cavity 1b1. The end of the second circulation pipe 3 that communicates with the first cavity 1b1 is directly opposite the baffle plate 1c. The bottom of the baffle plate 1c is lower than the connection point between the connecting pipe 7 and the second cavity 1b2. There is a set distance between the baffle plate 1c and the second cavity 1b2.

[0042] The main body 1a has a vertically arranged cylindrical partition 1d. The bottom of the partition 1d is connected to the main body 1a, and the inner ring of the top is provided with a connecting part 1e. The circulation part 1b is connected to the inner side of the connecting part 1e. There is a set gap between the inner wall of the partition 1d and the outer wall of the circulation part 1b.

[0043] A plurality of reinforcing bodies 1f are spaced apart between the outer wall of the circulation section 1b and the inner wall of the partition section 1d. It also includes a sealing cover 8, with an overlapping portion 9 vertically arranged at the bottom periphery of the sealing cover 8. The overlapping portion 9 fits against the outer wall of the main body 1a. A water inlet pipe 10 is vertically arranged at the top of the sealing cover 8, communicating with the main body 1a. A dust cover 11 is provided at the top of the water inlet pipe 10, and an air vent 12 is provided on the dust cover 11.

[0044] The top of the connecting part 1e is lower than the sealing cover 8. The sealing cover 8 is vertically provided with a blocking part 13. The blocking part 13 has an annular cross-section. The inner wall of the blocking part 13 is provided with a plurality of stabilizing parts 14 at intervals. Depending on the actual situation, the stabilizing parts 14 can either be attached to the outer wall of the partition part 1d or have a certain gap with the outer wall of the partition part 1d. The stabilizing parts 14 can improve the positional and shape stability of the blocking part 13 and the partition part 1d.

[0045] When in use, the heating element is located inside the blanket body in a meandering or spiral shape, consistent with existing technology; at the same time, the heating shell 6 is preferably a conventional PTC pipe heater available on the market, or an electric heating wire is installed inside the heating shell 6 for heating water (a leakage protection device is installed at the power supply to improve safety), or other conventional structures that can heat water or liquids.

[0046] Water in tank 1 flows into circulation section 1b. When circulation pump 5 starts, the water in circulation section 1b is driven through outlet pipe 4 into circulation pump 5, then sequentially flows into first circulation pipe 2 (passing through heating shell 6), heating section, and second circulation pipe 3 before flowing back into circulation section 1b. This ensures the blanket's temperature is maintained at the required level. Because this application requires less water to heat—primarily only the water in circulation section 1b and the main circulation pipe—its heating efficiency is higher, allowing for faster use, shorter waiting time, and better performance. Furthermore, the smaller total amount of water required for heating reduces heat wastage and improves energy efficiency.

[0047] The connecting pipe 7 is U-shaped and connects the bottom of the main body 1a and the second cavity 1b2. This allows the connecting pipe 7 to be filled effectively when water is added to the main body 1a through the water inlet pipe 10, reducing residual gas. Secondly, during the water circulation process, residual warm water flows into the first cavity 1b1 through the second circulation pipe 3. While the water still has a certain velocity, this is prevented from flowing into the connecting pipe 7 by the baffle plate 1c, thus reducing water heat loss. Furthermore, there is a gap between the baffle plate 1c and the second cavity 1b2, and the bottom of the baffle plate 1c is lower. This allows water in the second cavity 1b2 to replenish the water in the first cavity 1b1 normally, while also preventing the loss of hot water temperature.

[0048] Furthermore, the main body 1a is connected to the circulation section 1b via the partition 1d and the connecting section 1e. This effectively prevents the water temperature in the circulation section 1b from being transferred to the water in the main body 1a, even if the water temperature in the circulation section 1b is higher than that in the main body 1a, thus reducing water temperature waste. At the same time, the reinforcing body 1f enhances the structural strength of the entire water tank 1 and the circulation section 1b, ensuring the heating structure can be used for a long time.

[0049] When adding water, simply remove the dust cover 11 from the water inlet pipe 10 (the two can be connected by snap-fit, static friction, or thread), and then add water into the main body 1a. Finally, during use, the vent 12 on the dust cover 11 allows internal air or gas generated by the circulation pump 5 to be expelled, ensuring the pressure inside the main body 1a. The sealing cover 8 is interference-fitted to the outer wall of the main body 1a via its peripheral overlapping portion 9, effectively preventing external debris from falling into the water tank 1.

[0050] There are gaps between the bottom of the sealing cap 8 and the top of the partition 1d, the connecting part 1e, and the circulation part 1b, and there are also gaps between the inner wall of the blocking part 13 and the outer wall of the partition 1d. Gas is easily generated when the circulating water is heated and when the circulating pump 5 pumps water under negative pressure. In addition, gas inside the circulation part 1b, the main circulation pipe, the circulating pump 5, and the outlet pipe 4 during the initial water filling process must be discharged through the gaps formed between the blocking part 13, the partition 1d, and the sealing cap 8.

[0051] Furthermore, the method of inverting the partition 1d by using the blocking part 13 is to take into account that if the main body 1a is filled with water, a small amount of gas will remain in the upper part of the blocking part 13. At this time, this gas can isolate the circulation part 1b and the main body 1a, thereby further reducing heat conduction and heat convection and reducing heat waste.

[0052] The above description represents the preferred embodiments of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A heating structure for a water-heated blanket, characterized in that: include, Water tank (1), the water tank (1) includes a body (1a) with an opening facing upward and a circulation part (1b) communicating with the body (1a); The main circulation pipe includes a first circulation pipe (2), a heating pipe, and a second circulation pipe (3) connected in sequence. The outlet pipe (4) and the circulation pump (5) are connected in sequence to the second circulation pipe (3), the circulation part (1b), the outlet pipe (4), the circulation pump (5) and the first circulation pipe (2); Heating shell (6), which is connected to the first circulation pipe (2) and is used to heat the liquid in the first circulation pipe (2); The main body (1a) has a vertically arranged cylindrical partition (1d), the bottom of the partition (1d) is connected to the main body (1a), the inner ring of the top is provided with a connecting part (1e), the circulation part (1b) is connected to the inner side of the connecting part (1e), and there is a set gap between the inner wall of the partition (1d) and the outer wall of the circulation part (1b). It also includes a sealing cap (8), with an overlapping part (9) vertically arranged at the bottom periphery of the sealing cap (8), the overlapping part (9) fitting against the outer wall of the body (1a), a water inlet pipe (10) vertically arranged at the top of the sealing cap (8), the water inlet pipe (10) communicating with the body (1a), a dust cover (11) arranged at the top of the water inlet pipe (10), and an air vent (12) opened on the dust cover (11); The top of the connecting part (1e) is lower than the sealing cover (8), and the lower side of the sealing cover (8) is vertically provided with a blocking part (13). The cross-section of the blocking part (13) is annular, and the inner wall of the blocking part (13) is provided with a plurality of stabilizing parts (14) at intervals. There is a gap between the bottom of the sealing cap (8) and the top of the partition (1d), the connecting part (1e) and the circulation part (1b), and there is also a gap between the inner wall of the blocking part (13) and the outer wall of the partition (1d).

2. The heating structure of a water-heated blanket according to claim 1, characterized in that: It also includes a connecting pipe (7), the two ends of which are connected to the bottom of the main body (1a) and the bottom of the circulation part (1b), respectively.

3. The heating structure of a water-heated blanket according to claim 2, characterized in that: The connecting tube (7) is U-shaped with its opening facing upwards.

4. The heating structure of a water-heated blanket according to claim 2 or 3, characterized in that: The circulation section (1b) includes a first cavity (1b1) and a second cavity (1b2) that communicate with each other. The first cavity (1b1) communicates with the side of the second cavity (1b2). The first cavity (1b1) communicates with the second circulation pipe (3) and the outlet pipe (4). The second cavity (1b2) communicates with the... Pipe (7) is connected.

5. The heating structure of a water-heated blanket according to claim 4, characterized in that: The second circulation pipe (3) is connected to the side of the first cavity (1b1), and the water outlet pipe (4) is connected to the bottom of the first cavity (1b1). A baffle plate (1c) is vertically arranged on the inner wall of the first cavity (1b1). One end of the second circulation pipe (3) connected to the first cavity (1b1) is directly opposite the baffle plate (1c). The bottom of the baffle plate (1c) is lower than the connection between the connecting pipe (7) and the second cavity (1b2).

6. The heating structure of a water-heated blanket according to claim 5, characterized in that: The barrier plate (1c) and the second cavity (1b2) are at a set distance.

7. The heating structure of a water-heated blanket according to claim 1, characterized in that: A plurality of reinforcing bodies (1f) are provided at intervals between the outer wall of the circulation part (1b) and the inner wall of the partition part (1d).

Images