Hot-water bag heating element and electric hot-water bag

Abstract

This utility model discloses a hot water bag heating element and an electric hot water bag. The hot water bag heating element includes a heating tube, a shell, and a weight-adding component. The heating tube is used to heat the liquid. The shell has a mounting cavity. The heating tube is U-shaped and has two vertical sections and a bent section connecting the two vertical sections. The weight-adding component is disposed inside the shell and arranged near the vertical sections and / or the bent section of the heating tube. The electric hot water bag includes the aforementioned hot water bag heating element, a sealing bag, and a liquid sealing bag with a receiving cavity. The liquid is placed in the receiving cavity. The hot water bag heating element is disposed in the receiving cavity of the sealing bag and heats the liquid. This utility model has the effect of preventing dry burning.

Description

Technical Field

[0001] This utility model relates to the field of hot water bottles, specifically to a heating element for a hot water bottle and an electric hot water bottle. Background Technology

[0002] Electric hot water bottles are used for warmth. An electric hot water bottle generally consists of a bag body and a heating element inside the bag. The heating element heats the water inside the bag, thus providing warmth to the user. When the user needs warmth, they simply plug the electric hot water bottle into a power source to charge and heat it for a period of time until it provides sufficient heat for comfort.

[0003] Traditional electric hot water bags typically use a U-shaped metal heating element. However, in actual use, if the liquid inside the bag is insufficient or the bag is tilted, the heating element may be partially exposed above the liquid surface. Existing electric hot water bags generally require two temperature control components to prevent dry burning and control the water temperature: one to monitor the heating element's anti-dry-burn temperature, and the other to monitor the water temperature inside the bag. This increases the number of functional components and complicates the structure. Furthermore, the metal casing housing the anti-dry-burn temperature control component is tightly fitted inside the spiral heating element, making it prone to overheating and damage to the anti-dry-burn temperature control component due to excessive heat.

[0004] Therefore, improvements to existing technologies are necessary.

[0005] Practical new forms of content

[0006] The first technical problem this utility model aims to solve is to provide a hot water bag heating element that prevents dry burning, in light of the aforementioned technical situation.

[0007] The second technical problem to be solved by this utility model is to provide an electric hot water bag.

[0008] The technical solution adopted by this utility model to solve the first technical problem mentioned above is: a heating element for a hot water bottle, comprising...

[0009] The housing has a mounting cavity;

[0010] A heating element is disposed within the mounting cavity; characterized in that:

[0011] The heating tube is U-shaped, with two vertical sections and a bent section connecting the two vertical sections;

[0012] The weight-adding component is located inside the housing and is arranged near the vertical and / or bent portions of the heating tube.

[0013] There are various ways to install the weight-adding component. Preferably, the weight-adding component is a hollow cylinder that is fitted onto the outer peripheral wall of the vertical part and located inside the mounting cavity.

[0014] There are multiple ways to install the weight-adding component. Preferably, the mounting cavity is U-shaped, the housing has a U-shaped load-bearing cavity on the periphery of the mounting cavity, and the weight-adding component is U-shaped and installed inside the load-bearing cavity.

[0015] To limit the movement of the heating element and the weight-adding component, preferably, the housing includes:

[0016] The upper housing has a downward-facing open upper slot and a limiting slot;

[0017] The lower housing mates with the upper housing to form an installation cavity and a load-bearing cavity; the lower housing has a lower locking block that inserts into the upper locking slot and a limiting post that inserts into the limiting slot.

[0018] In order to add or remove weight-adding components according to product needs, and to adjust the weight and quantity of weight-adding components, preferably, the limiting post is located in the load-bearing cavity and divides the load-bearing cavity into multiple interconnected sub-cavities; the weight-adding components are selectively located in one or more of the sub-cavities.

[0019] Preferably, the plurality of weight-adding components are arranged in a U-shape.

[0020] In order to sense the temperature of the heating element, preferably, a temperature controller is provided in the mounting cavity, the temperature controller being in contact with the heating element and used to sense the temperature of the heating element.

[0021] To guide the liquid onto the heating element, keep the heating element moist, and prevent dry burning, preferably, a water-absorbing element is also included, partially disposed within the mounting cavity and having a bottom end and a high end opposite to the bottom end. The bottom end is used to immerse the liquid, and the high end contacts the heating element to guide the liquid from the bottom end onto the heating element.

[0022] In order to connect to an external power source and provide power to the heating element of the hot water bag, preferably, a power connector is also included that is electrically connected to the heating tube and the thermostat. The housing has a through hole near the charging end that communicates with the mounting cavity, and the power connector is partially disposed in the mounting cavity through the through hole.

[0023] The technical solution adopted by this utility model to solve the second technical problem mentioned above is: an electric hot water bag, characterized in that: it includes the aforementioned hot water bag heating element, and further includes...

[0024] A resealable bag with a receiving cavity;

[0025] The liquid is placed inside the receiving cavity;

[0026] The heating element of the hot water bag is placed inside the cavity of the sealed bag and heats the liquid.

[0027] Compared with the prior art, the advantages of this utility model are as follows: the weight-adding component is located inside the housing and outside the heating tube. Since the density of the weight-adding component is greater than that of the liquid, the heating tube can remain in contact with the liquid under the gravity of the weight-adding component, thereby keeping the heating tube moist, preventing dry burning, and reducing safety hazards. The weight-adding component is located on the vertical part and / or the bent part of the heating tube, and its shape and size can be adjusted as needed, which is convenient for production and assembly. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the heating element of the hot water bottle in Example 1;

[0029] Figure 2 This is an exploded view of the heating element of the hot water bag in Example 1;

[0030] Figure 3 This is a schematic diagram of the heating element of the hot water bottle in Example 1 (excluding the top cover);

[0031] Figure 4 This is a schematic diagram of the top cover of Example 1;

[0032] Figure 5 This is a schematic diagram of the hot water bottle in Example 1;

[0033] Figure 6 This is a cross-sectional view of the hot water bottle in Example 1;

[0034] Figure 7 This is a schematic diagram of the heating element of the hot water bag in Example 2;

[0035] Figure 8 This is a schematic diagram of the heating element of the hot water bottle in Example 2 (excluding the top cover);

[0036] Figure 9 This is a schematic diagram of the lower cover of Example 2;

[0037] Figure 10 This is a schematic diagram of the heating element of the hot water bag in Example 3;

[0038] Figure 11 This is a schematic diagram of the lower cover of Example 3;

[0039] Figure 12 This is a schematic diagram of the heating element of the hot water bottle in Example 4 (excluding the top cover). Detailed Implementation

[0040] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0041] Example 1

[0042] like Figure 1-4The image shows a preferred embodiment of this utility model. The heating element of the hot water bag includes a shell 1, a heating tube 2, a weighting component 3, and a water-absorbing component 4.

[0043] The heating tube 2 is used to heat the liquid. The heating tube 2 is U-shaped and includes two vertical sections 21 and a bent section 22 connecting the two vertical sections 21.

[0044] The housing 1 has a mounting cavity 1a; a heating element 2 and a thermostat 6 are disposed in the mounting cavity 1a. The thermostat 6 is in contact with the heating element 2 and is used to sense the heat of the heating element 2. The water-absorbing part 4 is disposed in the mounting cavity 1a and has a bottom end and a top end opposite to the bottom end. The bottom end is used to immerse the liquid 7 of the electric hot water bag, and the top end is in contact with the heating element 2 to guide the liquid at the bottom end to the heating element 2, thereby keeping the heating element 2 moist.

[0045] The weighting component 3 has a density greater than that of the liquid and is located on the outer peripheral wall of the heating tube 2, within the mounting cavity 1a.

[0046] like Figure 2 and Figure 3 As shown, the weight-adding component 3 is located on the vertical portion 21 of the U-shaped heating tube 2. In other embodiments, the weight-adding component 3 may also be located on the bent portion 22 of the heating tube 2. The weight-adding component 3 is a hollow cylinder.

[0047] like Figure 2 As shown, the housing 1 includes an upper housing 11 and a lower housing 12. The lower housing 12 mates with the upper housing 11 to form a mounting cavity 1a; as shown... Figure 4 As shown, the upper housing 11 has an upper slot 111 that is open downwards and a limiting groove 112 that is open upwards and located on the outer periphery of the upper slot 111; the lower housing 12 has a lower block 121 and a limiting post 122 that is inserted into the limiting groove 112.

[0048] The power connector 5 is electrically connected to the heating tube 2 and the thermostat 6. The housing 1 has a through hole 13 near the charging end that communicates with the mounting cavity 1a. The power connector 5 passes through the through hole 13 and is located in the mounting cavity 1a.

[0049] like Figure 5 and Figure 6 As shown, this embodiment also provides an electric hot water bag, including the aforementioned hot water bag heating element 100, a sealing bag 200, and liquid 7. The sealing bag 200 has a receiving cavity 200a; the liquid 7 is placed in the receiving cavity 200a; the hot water bag heating element 100 is disposed in the receiving cavity 200a of the sealing bag 200 and heats the liquid 7.

[0050] The usage process of this embodiment is as follows:

[0051] After connecting to an external power source via the power connector 5, the heating tube 2 begins to heat the liquid 7 inside the containment cavity 200a of the sealed bag 200. Under the weight of the weight-adding component 3, the heating tube 2 remains in contact with the liquid 7, and the bottom end of the water-absorbing component 4 is immersed in the liquid 6, while the upper end is in contact with the heating tube 2, guiding the liquid at the bottom end onto the heating tube 2. This keeps the heating tube 2 moist, prevents dry burning, and ensures good safety.

[0052] Example 2

[0053] like Figure 7-9 As shown, this is another preferred embodiment of the present utility model. The housing 1 also has a U-shaped load-bearing cavity 1b located in the outer region of the housing 1. The lower housing 12 and the upper housing 11 are joined to form a mounting cavity 1a and a load-bearing cavity 1b, with the load-bearing cavity 1b located outside the mounting cavity 1a; as shown... Figure 8 As shown, the weight-adding component 3 is located within the load-bearing cavity 1b. This weight-adding component 3 is U-shaped and located near the vertical portion 21 and the bent portion 22 of the heating tube 2. The remaining components of this embodiment are the same as those in Embodiment 1.

[0054] Example 3

[0055] like Figure 10 and Figure 11 As shown, the difference between this embodiment and Embodiment 2 is that the limiting post 122 is partially disposed within the load-bearing cavity 1b and divides the load-bearing cavity 1b into multiple interconnected sub-load-bearing cavities 1c. In this embodiment, each sub-load-bearing cavity 1c contains a weight-adding member 3, and there are three weight-adding members 3 arranged in a U-shape. In other embodiments, the number of weight-adding members 3 can be changed as needed, and they can be selectively disposed within the sub-load-bearing cavities 1c, so that the weight-adding members 3 are close to the vertical part 21 and / or the bent part 22, and the sub-load-bearing cavity 1c can be left empty as needed.

[0056] Example 4

[0057] like Figure 12 As shown, the difference between this embodiment and embodiment 1 is that the weight-adding component 3 is hollow and is only fitted onto the outer peripheral wall of the bent portion 22.

Claims

1. A heating element for a hot water bottle, comprising: The housing (1) has a mounting cavity (1a); Heating tube (2); disposed within the mounting cavity (1a); characterized in that: The heating tube (2) is U-shaped and has two vertical parts (21) and a bent part (22) connecting the two vertical parts (21); The weight-adding component (3) is disposed inside the housing (1) and arranged near the vertical part (21) and / or the bent part (22) of the heating tube (2).

2. The hot pack heat-generating body according to claim 1, characterized by: The weight-adding component (3) is a hollow cylinder that is fitted onto the outer peripheral wall of the vertical part (21) and located inside the mounting cavity (1a).

3. The hot pack heat-generating body according to claim 1, characterized by: The mounting cavity (1a) is U-shaped, and the housing (1) is located around the mounting cavity (1a) and has a U-shaped load-bearing cavity (1b). The weight-adding component (3) is U-shaped and located inside the load-bearing cavity (1b).

4. The hot pack heat-generating body according to claim 3, characterized by: The housing (1) includes: The upper housing (11) has a downward-facing open upper slot (111) and a limiting slot (112); The lower housing (12) is fitted with the upper housing (11) to form an installation cavity (1a) and a load-bearing cavity (1b); the lower housing (12) has a lower locking block (121) inserted into the upper locking groove (111) and a limiting post (122) inserted into the limiting groove (112).

5. The hot pack heat-generating body according to claim 4, characterized by: The limiting post (122) is partially disposed in the load-bearing cavity (1b) and divides the load-bearing cavity (1b) into multiple interconnected sub-cavities (1c); the weight-adding member (3) is selectively disposed in one or more of the sub-cavities (1c), and the shape of the weight-adding member (3) matches the corresponding sub-cavity (1c).

6. The heating element of the hot water bottle according to claim 5, characterized in that: The multiple weight-adding components (3) are arranged in a U-shape.

7. The hot pack heat-generating body according to claim 1, characterized by: A thermostat (6) is provided in the mounting cavity (1a). The thermostat (6) is in contact with the heating tube (2) and is used to sense the temperature of the heating tube (2).

8. The hot pack heat-generating body according to claim 1, characterized by: It also includes a water-absorbing element (4), which is partially disposed in the mounting cavity (1a) and has a bottom end and a high end opposite to the bottom end. The bottom end is used to immerse the liquid (7) heated by the heating tube (2), and the high end is in contact with the heating tube (2) to guide the liquid (7) at the bottom end onto the heating tube (2).

9. The hot pack heat-generating body according to claim 7, characterized by: It also includes a power connector (5) that is electrically connected to the heating tube (2) and the thermostat (6). The housing (1) has a through hole (13) near the charging end that communicates with the mounting cavity (1a). The power connector (5) passes through the through hole (13) and is located in the mounting cavity (1a).

10. An electrically heated water bag characterized by: The hot water bottle heating element (100) according to any one of claims 1 to 9 also includes... A sealed bag (200) having a receiving cavity (200a); Liquid (7) is placed in the receiving cavity (200a); the density of liquid (7) is less than the density of the weighting component (3); The heating element (100) of the hot water bag is disposed in the receiving cavity (200a) of the sealed bag (200) and heats the liquid (7).

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