Steam generator with metal shell

Abstract

The utility model relates to a steam generator with a metal shell, which comprises the metal shell, a heating membrane, a generator main body, an anti-dry-burning temperature controller and a fuse, and the anti-dry-burning temperature controller, the heating membrane and the fuse are connected in series and fixed through a circuit. The metal shell is formed by bending a metal plate and sequentially comprises a metal top plate, a first metal side plate, a metal bottom plate and a second metal side plate, and the metal top plate and the second metal side plate are locked through a buckle structure; the metal shell is provided with an arrangement cavity with front and rear openings, the generator body is arranged in the arrangement cavity, the heating membrane is attached to the top face of the generator body, and the fuse is located in the arrangement cavity and abuts against the bottom of the generator body. The dry-burning-resistant temperature controller is installed on the metal top plate in a penetrating mode, and a detection part of the dry-burning-resistant temperature controller is attached to the heating membrane. The utility model provides a steam generator with another shell structure.

Description

Technical Field

[0001] This application relates to the field of steam technology for household appliances, and in particular to a steam generator with a metal casing. Background Technology

[0002] With the improvement of people's living standards and the increasing demand for intelligent and multifunctional home appliances, more and more home appliances are integrating steam generators, such as steam irons, steam cleaners, steam ovens, and steam mops. A steam generator includes a plastic shell, a heating diaphragm, a generator body, and a dry-burning thermostat. The plastic shell typically consists of an upper shell and a lower shell, and is formed by injection molding. When assembling the above-mentioned steam generator, it is usually necessary to install the heating diaphragm, generator body, and dry-burning thermostat in the lower shell, and then press the lower shell and upper shell together to complete the assembly of the steam generator. In response to the above-mentioned related technologies, the inventor provides another type of steam generator with a metal shell. Utility Model Content

[0003] In order to provide a steam generator with an alternative housing structure, this application provides a metal-cased steam generator.

[0004] The metal-cased steam generator provided in this application adopts the following technical solution:

[0005] A metal-cased steam generator includes a metal casing, a heating diaphragm, a generator body, an anti-dry-burning thermostat, and a fuse. The anti-dry-burning thermostat, the heating diaphragm, and the fuse are connected in series and fixed by a circuit. The metal casing is formed by bending metal plates and includes a metal top plate, a first metal side plate, a metal bottom plate, and a second metal side plate in sequence. The metal top plate and the second metal side plate are locked by a snap-fit ​​structure. The metal casing has a front and rear opening arrangement chamber. The generator body is arranged in the arrangement chamber. The heating diaphragm is attached to the top surface of the generator body. The fuse is located in the arrangement chamber and abuts against the bottom of the generator body. The anti-dry-burning thermostat is installed through the metal top plate, and the detection part of the anti-dry-burning thermostat is attached to the heating diaphragm.

[0006] By adopting the above technical solution, the metal casing is constructed by bending metal sheets, and the metal top plate and the second metal side plate are locked together by a snap-fit ​​structure. Compared with the production of small plastic casings by injection molding, the method of forming a metal casing by bending metal sheets is simpler. The metal casing has a cavity with openings at the front and back, which makes it easier to install the heating diaphragm, generator body, fuse, and anti-dry-burning thermostat into the metal casing.

[0007] The metal outer shell employs a structural design constructed from bent metal sheets, with a snap-fit ​​mechanism locking the top metal plate to the second metal side plate. This simplifies the manufacturing process of the metal shell. Compared to injection molding of plastic shells, it eliminates the need for a complex core-pulling structure, thus reducing the production difficulty of the metal shell. The front and rear openings of the metal shell create a chamber structure that facilitates the installation and positioning of the generator body, heating diaphragm, fuse, and anti-dry-burning thermostat, making the assembly of the metal-shell steam generator relatively convenient.

[0008] Optionally, the snap-fit ​​structure includes a locking through hole disposed on the metal top plate and a locking piece disposed on the top of the second metal side plate and bent through the locking through hole, wherein the locking through hole is located on the side of the metal top plate closer to the second metal side plate.

[0009] By adopting the above technical solution, the specific structure of the snap-fit ​​structure is disclosed. By providing a locking through hole in the metal top plate and a locking piece in the second side plate, when the locking piece passes through the locking through hole and bends downward, the locking piece can lock the metal top plate to the second metal side plate.

[0010] Optionally, the locking piece includes a connecting portion and a locking portion, wherein the width of the locking portion is greater than the width of the connecting portion.

[0011] By adopting the above technical solution, the specific structure of the locking piece is disclosed. The fact that the locking part is larger than the connecting part makes it easier to bend the locking piece by pressing the locking part.

[0012] Optionally, two locking tabs are provided on the second metal side plate.

[0013] By adopting the above technical solution, the setting of two locking plates can further enhance the locking effect of the locking plates on the metal top plate.

[0014] Optionally, a first bending through hole is provided at the connection between the metal top plate and the first metal side plate; a second bending through hole is provided at the connection between the first metal side plate and the metal bottom plate; and a third bending through hole is provided at the connection between the metal bottom plate and the second metal side plate.

[0015] By adopting the above technical solution, since the metal shell is made of bent metal plates, the setting of the first bending through hole, the second bending through hole and the third bending through hole makes it easier for the metal plates to be bent to form the metal top plate, the first metal side plate, the metal bottom plate and the second metal side plate.

[0016] Optionally, the front and rear sides of the metal base plate are provided with limiting baffles to prevent the generator body from leaving the arrangement chamber, and a fourth bending through hole is provided at the connection between the limiting baffles and the metal base plate.

[0017] By adopting the above technical solution, the setting of the limiting baffle helps to prevent the generator from detaching from the arrangement chamber; the setting of the fourth bending through hole makes the limiting baffle easier to be bent.

[0018] Optionally, one of the limiting baffles is located on the side closer to the first metal side plate, and the other limiting baffle is located on the side closer to the second metal side plate.

[0019] By adopting the above technical solution, the first metal side plate and the second metal side plate are staggered, so that one end of the wire connecting the fuse passes between one of the limiting plates and the first metal side plate, and the other end passes between the other limiting plate and the second metal side plate, so that the fuse can be arranged in the middle of the bottom of the generator body, which helps to enhance the thermal response performance of the fuse.

[0020] Optionally, the metal top plate has a through hole extending through the upper and lower surfaces for mounting the anti-dry-burning thermostat; the anti-dry-burning thermostat has a mounting flange that fits against the top surface of the metal top plate, and the mounting flange and the metal top plate are connected and fixed by screws.

[0021] By adopting the above technical solution, the installation through hole allows the anti-dry-burning thermostat to pass through the metal top plate and the detection part of the anti-dry-burning thermostat to fit against the top of the heating diaphragm. The cooperation between the mounting flange and the metal top plate makes the stability of the anti-dry-burning thermostat ideal when installed on the metal top plate, which helps the detection part of the anti-dry-burning thermostat to fit better against the heating diaphragm.

[0022] Optionally, the first metal side plate has a first through hole and a first mounting lug is provided at the first through hole; the second metal side plate has a second through hole and a second mounting lug is provided at the second through hole.

[0023] By adopting the above technical solution, the first mounting bracket and the second mounting bracket make it easier to install the metal casing on household appliances after bending.

[0024] In summary, this application includes at least one of the following beneficial technical effects:

[0025] 1. A metal-cased steam generator, wherein a metal shell is formed by bending a metal plate, such that the metal shell has a front and rear open arrangement of chambers, making it easier to install a heating diaphragm, a generator body, a fuse and an anti-dry-burning thermostat into the metal shell;

[0026] 2. By providing a locking through hole in the metal top plate and a locking piece in the second metal side plate, the locking piece can lock the metal top plate to the second metal side plate after being bent.

[0027] 3. The first bending through hole, the second bending through hole and the second bending through hole make it easier to bend the metal sheet to form the metal top plate, the first metal side plate, the metal bottom plate and the second metal side plate. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall structure in the embodiments of this application.

[0029] Figure 2 This is a schematic diagram of the structure of the metal casing in an embodiment of this application.

[0030] Figure 3 This is a schematic diagram of the structure of the heating diaphragm, generator body, anti-dry-burning thermostat and fuse in the embodiments of this application.

[0031] Figure 4 This is a schematic diagram of the generator body with one end cap removed in an embodiment of this application.

[0032] Explanation of reference numerals in the attached drawings: 1. Metal outer casing; 11. Metal top plate; 111. Abutting part; 112. Mounting through hole; 113. Locking screw hole; 12. First metal side plate; 121. First through hole; 122. First mounting lug; 1221. First mounting hole; 13. Metal bottom plate; 131. Limiting baffle; 14. Second metal side plate; 141. Second through hole; 142. Second mounting lug; 1421. Second mounting hole; 15. Snap-fit ​​structure; 151. Locking through hole; 15 2. Locking plate; 1521. Connecting part; 1522. Locking part; 161. First bent through hole; 162. Second bent through hole; 163. Third bent through hole; 164. Fourth bent through hole; 17. Arrangement chamber; 2. Heating diaphragm; 21. First electrode; 22. Second electrode; 3. Generator body; 31. Water inlet section; 32. Steam outlet section; 33. Steam chamber; 4. Anti-dry burning thermostat; 41. Mounting flange; 5. Fuse; 6. First wire; 7. Second wire. Detailed Implementation

[0033] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0034] This application discloses a metal-cased steam generator.

[0035] Reference Figure 1A metal-cased steam generator includes a metal casing 1, a heating diaphragm 2, a generator body 3, an anti-dry-burning thermostat 4, and a fuse 5. The anti-dry-burning thermostat 4, the heating diaphragm 2, and the fuse 5 are connected in series via a circuit.

[0036] Reference Figure 1 and Figure 2 The metal outer shell 1 is formed by bending metal plates and includes, in sequence, a metal top plate 11, a first metal side plate 12, a metal bottom plate 13, and a second metal side plate 14. The metal top plate 11 and the second metal side plate 14 are locked by a snap-fit ​​structure 15. In this embodiment, the angle between the metal top plate 11 and the first metal side plate 12 is 90 degrees, the angle between the first metal side plate 12 and the metal bottom plate 13 is 90 degrees, and the angle between the metal bottom plate 13 and the second metal side plate 14 is 90 degrees. To enable the metal plates to bend more effectively to form the metal outer shell 1, a first bending through hole 161 is provided along the width direction at the connection between the metal top plate 11 and the first metal side plate 12; a second bending through hole 162 is provided along the width direction at the connection between the first metal side plate 12 and the metal bottom plate 13; and a third bending through hole 163 is provided along the width direction at the connection between the metal bottom plate 13 and the second metal side plate 14.

[0037] Reference Figure 2 The latching structure 15 includes a locking through-hole 151 formed in the metal top plate 11 and extending through its upper and lower surfaces, and a locking piece 152 disposed on the top of the second metal side plate 14. The metal top plate 11 has a downwardly bent abutment portion 111 formed at one end facing the second metal side plate 14 within the locking through-hole 151. The inner wall of the abutment portion 111 is fitted against the outer wall of the second metal side plate 14. The locking piece 152, after being bent downwards towards the abutment portion 111, fits against the outer wall of the abutment portion 111, thereby locking the metal top plate 11 to the second metal side plate 14. In this embodiment, there are two locking pieces 152, arranged side-by-side along the width direction of the top of the second metal side plate 14. In order to make it easier to bend the locking piece 152, the locking piece 152 includes a connecting part 1521 and a locking part 1522 from bottom to top. The width of the locking part 1522 is greater than the width of the connecting part 1521. By pressing the locking part 1522, the locking piece 152 can be bent to lock the metal top plate 11 to the second metal side plate 14.

[0038] Reference Figure 1 and Figure 2The metal casing has a front and rear opening arrangement chamber 17. The heating diaphragm 2, generator body 3, anti-dry-burning thermostat 4 and fuse 5 are all installed in the arrangement chamber 17. The metal top plate 11 has a through hole 112 that penetrates the upper and lower surfaces for installing the anti-dry-burning thermostat 4. The side wall of the anti-dry-burning thermostat 4 is also provided with a mounting flange 41. The two ends of the mounting flange 41 have bolt holes that penetrate the upper and lower surfaces. The metal top plate 11 has locking screw holes 113 that correspond one-to-one with the bolt holes of the mounting flange 41. The anti-dry-burning thermostat 4 is fixed on the metal top plate 11 by screws passing through the bolt holes and threaded into the locking screw holes 113.

[0039] Reference Figure 1 and Figure 3 The anti-dry-burning thermostat 4 is located above the heating diaphragm 2, and its detection part is attached to the top of the heating diaphragm 2. The generator body 3 is located below the heating diaphragm 2, and its top surface is attached to the bottom surface of the heating diaphragm 2. The fuse 5 is located at the bottom of the generator body 3, and its top surface is attached to the bottom surface of the generator body 3. When the temperature of the generator body 3 is too high, the fuse in the fuse 5 melts, thereby cutting off the circuit.

[0040] Reference Figure 1 and Figure 4 The generator body 3 has a water inlet section 31 for water inflow at one end near the second metal side plate 14, and a steam outlet section 32 for steam outflow at one end near the first metal side plate 12. The generator body 3 also has a steam chamber 33 for vaporizing water into steam. The heating diaphragm 2 has a first tab 21 near the water inlet section 31 and a second tab 22 near the steam outlet section 32. The anti-dry-burning thermostat 4 is connected to the second tab 22 via a first wire 6, and the first tab 21 is connected to one end of the fuse 5 via a second wire 7.

[0041] Reference Figure 1 and Figure 2 To prevent the generator body 3 from detaching from the arrangement chamber 17 of the metal casing, the metal base plate 13 is provided with limiting baffles 131 on the front and rear sides of the arrangement chamber 17. Both limiting baffles 131 are square plate structures and are integrally formed with the metal base plate 13. After the limiting baffles 131 are bent upward, the generator body 3 can be confined within the arrangement chamber 17. To make it easier for the limiting baffles 131 to bend upward, a fourth bending through hole 164 is provided along the width direction at the connection between the limiting baffles 131 and the metal top plate 11.

[0042] Reference Figure 1 and Figure 2To facilitate easier installation of the metal casing 1 onto household appliances, the first metal side plate 12 has a first through hole 121 penetrating both sides. The first through hole 121 is U-shaped. After the first through hole 121 is formed, a first mounting lug 122 is formed at the first through hole 121. The second metal side plate 14 has a second through hole 141 penetrating both sides. The second through hole 141 is U-shaped. After the second through hole 141 is formed, a second mounting lug 142 is formed at the second through hole 141. The first mounting lug 122 has a first mounting hole 1221 penetrating both sides, and the second lug has a second mounting hole 1421 penetrating both sides.

[0043] Combination Figures 1 to 4 The implementation principle of a metal-cased steam generator according to an embodiment of this application is as follows: the heating diaphragm 2 heats the generator body 3, and water enters the steam chamber 33 from the water inlet section 31 of the generator body 3 and vaporizes under high temperature to generate steam, which then flows out from the steam outlet section 32. The anti-dry-burning thermostat 4 can detect the temperature of the heating diaphragm 2 and transmit the data to the control system to adjust the power of the heating diaphragm 2. The fuse 5 can cut off the power supply when the temperature of the heating diaphragm 2 is abnormally high. During the production of the metal casing 1, metal sheets are bent to form a metal top plate 11, a first metal side plate 12, a metal bottom plate 13, and a second metal side plate 14. Then, the metal top plate 11 and the second metal side plate 14 are locked together by a snap-fit ​​structure 15.

[0044] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A metal-sheathed steam generator characterized by, The application relates to a generator, which comprises a metal shell (1), a heating film (2), a generator body (3), a dry-burning prevention temperature controller (4) and a fuse (5), wherein the dry-burning prevention temperature controller (4), the heating film (2) and the fuse (5) are fixed in series through an electric circuit, the metal shell (1) is composed of a metal plate and comprises a metal top plate (11), a first metal side plate (12), a metal bottom plate (13) and a second metal side plate (14) in sequence, the metal top plate (11) and the second metal side plate (14) are locked through a buckle structure (15), the metal shell (1) has an arrangement cavity (17) with front and rear openings, the generator body (3) is arranged in the arrangement cavity (17), the heating film (2) is attached to the top surface of the generator body (3), the fuse (5) is located in the arrangement cavity (17) and abuts against the bottom of the generator body (3), and the dry-burning prevention temperature controller (4) is installed through the metal top plate (11) and the detection part of the dry-burning prevention temperature controller (4) is attached to the heating film (2).

2. A metal-sheathed steam generator according to claim 1, characterized in that The buckle structure (15) comprises a locking through hole (151) arranged on the metal top plate (11) and a locking sheet (152) arranged on the top of the second metal side plate (14) and penetratingly arranged in the locking through hole (151), and the locking through hole (151) is located on the side of the metal top plate (11) close to the second metal side plate (14).

3. A metal-sheathed steam generator according to claim 2, characterised in that The locking sheet (152) comprises a connecting part (1521) and a locking part (1522), and the width of the locking part (1522) is greater than that of the connecting part (1521).

4. A metal-sheathed steam generator according to claim 2, wherein Two locking sheets (152) are arranged on the second metal side plate (14).

5. A metal-sheathed steam generator according to claim 1, wherein A first bending through hole (161) is arranged at the connecting position of the metal top plate (11) and the first metal side plate (12), a second bending through hole (162) is arranged at the connecting position of the first metal side plate (12) and the metal bottom plate (13), and a third bending through hole (163) is arranged at the connecting position of the metal bottom plate (13) and the second metal side plate (14).

6. A metal-sheathed steam generator according to claim 1, characterized in that, Limiting baffle plates (131) for limiting the generator body (3) from being separated from the arrangement cavity (17) are arranged on the front and rear sides of the metal bottom plate (13), and fourth bending through holes (164) are arranged at the connecting positions of the limiting baffle plates (131) and the metal bottom plate (13).

7. A metal-sheathed steam generator according to claim 6, characterised in that One of the limiting baffle plates (131) is located on the side close to the first metal side plate (12), and the other limiting baffle plate (131) is located on the side close to the second metal side plate (14).

8. A metal-sheathed steam generator according to claim 1, characterized in that, The metal top plate (11) has a mounting through hole (112) penetrating through the upper and lower surfaces and used for mounting the dry-burning prevention temperature controller (4), the dry-burning prevention temperature controller (4) has a mounting flange (41) attached to the top surface of the metal top plate (11), and the mounting flange (41) and the metal top plate (11) are fixed through screw connection.

9. A metal-sheathed steam generator according to claim 8, characterised in that, The first metal side plate (12) has a first through hole (121) and is provided with a first mounting lug (122) at the first through hole (121); the second metal side plate (14) has a second through hole (141) and is provided with a second mounting lug (142) at the second through hole (141).

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