Fireproof device and electric water heater

Abstract

The utility model discloses a fireproof device, apply on electric water heater, including fireproof base, fireproof surface cover, fireproof fixed plate composition. Its characterized in that: the fireproof device is enclosed above electrical chamber, the fireproof base is fixed above electric water heater shell, the fireproof fixed plate is fixed on the fireproof base, and the fireproof surface cover is spliced with fireproof fixed plate and covers on the fireproof base. The electric water heater of the utility model avoids the electric water heater because of the poor use environment, the overuse reason, electrical component accelerates the aging and causes the fire disaster to take place, improves product use safety performance.

Description

Technical Field

[0001] This utility model relates to the field of water heater technology, and more specifically, to a fire prevention device and an electric water heater. Background Technology

[0002] Electric water heaters have become essential household appliances and are used very frequently. In existing electric water heaters, one end of the heating element extends into the water storage tank, and the other end is mounted on a flange. The space between the flange and the outer casing is an electrical chamber. This electrical chamber lacks a fire-resistant design. If the water heater is used in a poor environment or if the product continues to be used beyond its warranty period, occasional fires may occur due to aging electrical components, leading to sparks and posing a safety hazard. Utility Model Content

[0003] This utility model provides a fireproof device and an electric water heater. The fireproof structure is designed in the electrical chamber of the electric water heater, making the use of the electric water heater safer and overcoming the shortcomings of the prior art.

[0004] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows:

[0005] A fireproof device is applied in the electrical cavity of an electric water heater, characterized in that it includes a fireproof base and a cover made of flame-retardant and fireproof material, the fireproof base and the cover being spliced ​​together to form a fireproof cover, the fireproof base being fixed on the front cover of the electric water heater, the fireproof base being provided with a flange, the flange being adapted to be installed on the heating element flange of the electric water heater, and the thermostat of the electric water heater being installed inside the fireproof cover.

[0006] The fireproof base includes a side wall and a bottom plate, and the side wall is connected to the cover by a snap fastener.

[0007] The buckle includes a buckle plate and a hook. The buckle plate is provided with hook holes. The buckle plate is provided on one side wall and the cover, and the hook is provided on the other side.

[0008] The cover includes a fireproof faceplate and a fireproof fixing plate. A positioning post is provided on the base plate. A positioning cylinder is fitted onto the fireproof fixing plate and is sleeved on the positioning post. The thermostat is fixed to the fireproof fixing plate. The fireproof faceplate and the fireproof fixing plate are spliced ​​side-by-side. A positioning support block extending outwards is provided on the bottom surface of the fireproof faceplate at the splicing point. When the fireproof faceplate and the fireproof fixing plate are spliced ​​side-by-side, the positioning support block supports the bottom surface of the fireproof fixing plate. The fireproof faceplate has a downwardly extending vertical plate. When the fireproof faceplate is inserted into the fireproof base, the vertical plate is close to the inner side wall of the fireproof base.

[0009] An electric water heater includes the aforementioned fireproof device.

[0010] The inner tank of the electric water heater is provided with a flange, which has a flared opening. An inner tank flange is provided at the flared opening, and a pressure ring is provided above the heating element flange. The pressure ring and the inner tank flange clamp and fix the edge of the heating element flange.

[0011] The inner flange is provided with a bolt mounting port, which includes an insertion port and a mounting groove. The mounting groove is connected to the insertion port. The bolt is inserted into the insertion port and enters the mounting groove through the insertion port. The pressure ring is adapted to be provided with bolt holes. The bolt passes through the mounting groove and the bolt holes, and the edge of the heating rod flange is fixed.

[0012] A sealing ring is provided between the flange and the heating rod flange.

[0013] The above technical solution has the following beneficial effects:

[0014] This utility model of electric water heater has a flame-retardant and fireproof device installed in the electrical chamber. Even if an electrical spark occurs, the fire cannot spread outside the fireproof cover and will be automatically extinguished. This avoids fires caused by the accelerated aging of electrical components due to poor usage environment or overuse, thus improving the safety performance of the product. Attached Figure Description

[0015] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the installation structure of the fireproof base of this utility model in an electric water heater;

[0017] Figure 2 This is a cross-sectional view of the electric water heater of this utility model;

[0018] Figure 3 for Figure 2 Enlarged view of part A;

[0019] Figure 4 This is a front view of an electric water heater.

[0020] Figure 5 This is an exploded view of an electric water heater.

[0021] Figure 6 This is an exploded view of the fireproof cover of this utility model;

[0022] Figure 7 This is a cross-sectional view of the fireproof cover of this utility model;

[0023] Figure 8 This is a schematic diagram of the inner flange structure. Detailed Implementation

[0024] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings. It should be noted that these descriptions are for the purpose of aiding understanding of this utility model, but do not constitute a limitation thereof. Furthermore, the technical features involved in the various embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0025] See Figures 1-8 As shown, this utility model discloses a fireproof device and an electric water heater using the fireproof device. The fireproof device is applied in the electrical cavity of the electric water heater and includes a fireproof base 1 and a cover made of flame-retardant and fireproof material. The fireproof base and the cover are spliced ​​together to form a fireproof cover. The fireproof base is fixed on the front cover 4 of the electric water heater. The fireproof base 1 is provided with a flange 11, which is adapted to be installed on the heating element flange 5 of the electric water heater. The thermostat 6 of the electric water heater is installed inside the fireproof cover.

[0026] The fireproof base includes side walls and a bottom plate, with the side walls and the cover connected by snap-fit.

[0027] The buckle includes a buckle plate 101 and a hook 102. The buckle plate is provided with a hook hole 1011. The buckle plate is provided on one side wall and the cover body, and the hook is provided on the other side.

[0028] The cover includes a fireproof cover 2 and a fireproof fixing plate 3. A positioning post 103 is provided on the base plate. A positioning cylinder 104 is adapted to the fireproof fixing plate and is sleeved on the positioning post. The thermostat is fixed to the fireproof fixing plate. The fireproof cover and the fireproof fixing plate are spliced ​​side by side. A positioning support block 105 extending outward is provided on the bottom surface of the fireproof cover at the splicing point. When the fireproof cover and the fireproof fixing plate are spliced ​​side by side, the positioning support block supports the bottom surface of the fireproof fixing plate. The fireproof cover is provided with a downwardly extending vertical plate 106. When the fireproof cover and the fireproof base are inserted and installed, the vertical plate is close to the inner side wall of the fireproof base.

[0029] The inner tank of the electric water heater is provided with a flange 10, which has a flared opening. An inner tank flange 7 is provided at the flared opening. A pressure ring 8 is provided above the heating rod flange. The pressure ring and the inner tank flange clamp and fix the edge of the heating rod flange.

[0030] The inner flange is provided with a bolt mounting port 701, which includes an insertion port 7011 and a mounting groove 7012. The mounting groove is connected to the insertion port. The bolt is inserted into the insertion port and then enters the mounting groove through the insertion port. The pressure ring is adapted to provide bolt holes. The bolt includes a bolt head 702, a bolt post 703, and a nut 704. During assembly, the bolt post is first allowed to enter the mounting groove 7012 from the insertion port 7011. The width of the mounting groove is smaller than the width of the bolt head, so the bolt head cannot be dislodged from the mounting groove. The bolt hole of the pressure ring is inserted into the bolt post 703 to fix the edge of the heating rod flange and tighten it with the nut 704.

[0031] A sealing ring 9 is installed between the flange and the heating rod flange.

[0032] Working principle: When an electric water heater sparks due to accelerated aging of electrical components, the fire will automatically extinguish itself because the electrical compartment is sealed by a fireproof cover, which has flame-retardant and fire-resistant functions, preventing the fire from spreading outside the fireproof cover and thus preventing the occurrence of a fire.

[0033] The embodiments of this utility model have been described in detail above with reference to the accompanying drawings, but this utility model is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this utility model, and these variations still fall within the protection scope of this utility model.

Claims

1. A fireproof device, applied in the electrical chamber of an electric water heater, characterized in that: It includes a fireproof base and a cover made of flame-retardant and fireproof materials. The fireproof base and the cover are spliced ​​together to form a fireproof cover. The fireproof base is fixed on the front cover of the electric water heater. The fireproof base is provided with a flange. The flange is adapted to be installed on the flange of the electric water heater's heating element. The thermostat of the electric water heater is installed inside the fireproof cover.

2. A fire prevention device according to claim 1, characterized in that: The fireproof base includes a side wall and a bottom plate, and the side wall is connected to the cover by a snap fastener.

3. A fire prevention device according to claim 2, characterized in that: The buckle includes a buckle plate and a hook. The buckle plate is provided with hook holes. The buckle plate is provided on one side wall and the cover, and the hook is provided on the other side.

4. A fire prevention device according to claim 3, characterized in that: The cover includes a fireproof faceplate and a fireproof fixing plate. A positioning post is provided on the base plate. A positioning cylinder is adapted to the fireproof fixing plate and is sleeved on the positioning post. The thermostat is fixed on the fireproof fixing plate. The fireproof faceplate and the fireproof fixing plate are spliced ​​side by side. A positioning support block extending outward is provided on the bottom surface of the fireproof faceplate at the splicing point. When the fireproof faceplate and the fireproof fixing plate are spliced ​​side by side, the positioning support block supports the bottom surface of the fireproof fixing plate. The fireproof faceplate is provided with a vertical plate extending downward. When the fireproof faceplate is inserted and installed with the fireproof base, the vertical plate is close to the inner side wall of the fireproof base.

5. An electric water heater, characterized in that: Includes a fire protection device as described in any one of claims 1 to 4.

6. The electric water heater according to claim 5, characterized in that: The inner tank of the electric water heater is provided with a flange, which has a flared opening. An inner tank flange is provided at the flared opening, and a pressure ring is provided above the heating element flange. The pressure ring and the inner tank flange clamp and fix the edge of the heating element flange.

7. The electric water heater according to claim 6, characterized in that: The inner flange is provided with a bolt mounting port, which includes an insertion port and a mounting groove. The mounting groove is connected to the insertion port. The bolt is inserted into the insertion port and enters the mounting groove through the insertion port. The pressure ring is adapted to be provided with bolt holes. The bolt passes through the mounting groove and the bolt holes, and the edge of the heating rod flange is fixed.

8. The electric water heater according to claim 7, characterized in that: A sealing ring is provided between the flange and the heating rod flange.

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