Thick film heating device and instant water heater

Abstract

The utility model relates to the technical field of water heaters, in particular to a thick film heating device and an instant water heater, which comprise a base, a heat source assembly is arranged on the base, the heat source assembly comprises a waterway pipe, a thick film heating pipe, a heat pipe shell and an end cover, a sliding groove and a mounting seat are arranged on the base, and a switching interface is mounted on the mounting seat. The adapter interface is matched with the end cover, and the sliding groove is matched with the heat pipe shell. When the heat source assembly needs to be replaced, a user can firstly take away the temperature transmission assembly, loosen a locking screw and then press down the pressing part to unlock the lock catch component, and the switching part and the heat source assembly can be automatically ejected under the action of the quick-release elastic piece after the limitation is lost, so that the heat source assembly is convenient to replace and maintain; when a new heat source assembly is installed, only the new heat source assembly needs to be inserted into the adapter connector along the sliding groove, and then the adapter part is inserted into the end cover at the other end of the heat source assembly until the new heat source assembly is locked by the lock catch component, so that installation can be completed.

Description

Technical Field

[0001] The utility model relates to the technical field of water heaters, in particular to a thick film heating device and an instant water heater. Background Art

[0002] Instant water heaters can quickly heat water flow. Instant water heaters usually use electric heating wires, ceramic heaters or quartz tubes as heating elements for rapid heating. Different heating methods have different advantages and disadvantages. In recent years, with the development of heating technology, thick film heating, which has the advantages of wide heating range, high heating temperature, uniform heating, and long working life, has been widely used in heat source devices. However, due to the fast heating speed of the thick film, when working in the closed environment inside the water heater, the water flow entering the thick film will instantly heat up and vaporize. Excessive temperature can easily cause the water heater to explode, bringing safety hazards to the use of the water heater. Therefore, in instant water heaters that use thick film heating devices as heat sources, two or more thick film heating devices are usually provided.

[0003] Although the thick film heating device has a long life, it is inevitable that malfunctions will occur in actual use, and as the use time increases, the thick film heating device will also age. The thick film heating device in the instant water heater is relatively cumbersome and inconvenient to replace. Maintenance personnel usually need to completely remove the water heater casing, unscrew the screws on the thick film heating device, and finally unscrew the water inlet and outlet pipes before they can remove the thick film heating device. After replacement, the thick film heating device needs to repeat the above operations in reverse, and the process is very cumbersome and time-consuming. Utility Model Content

[0004] The utility model aims to provide a thick film heating device and an instant water heater, aiming to solve the problem that the replacement process of the thick film heating device in the existing instant water heater is complicated and time-consuming.

[0005] In order to achieve the above-mentioned purpose, the utility model provides a thick film heating device, including a base, a heat source assembly is arranged on the base, the heat source assembly includes a water pipe, a thick film heating pipe, a heat pipe shell and an end cover, the water pipe is installed in the thick film heating pipe, and the inner diameter of the thick film heating pipe is consistent with the outer diameter of the water pipe, end covers are installed at both ends of the thick film heating pipe, a sealing ring is arranged between the end cover and the thick film heating pipe, and the heat pipe shell is arranged on the periphery of the thick film heating pipe and is fixedly connected to the end cover;

[0006] A slide groove and a mounting seat are provided on the base, and two sets of adapter interfaces are provided on the mounting seat. The adapter interface fits with the end cover, and the slide groove fits with the heat pipe shell; the adapter interface is connected with the water pipe through the end cover, a sealing gasket is provided between the adapter interface and the end cover, and an adapter part is installed at the end cover away from the adapter interface.

[0007] Furthermore, the two groups of adapter interfaces are respectively connected to a group of heat source components; the adapter part is used to connect the two groups of heat source components, and a sealing gasket is arranged between the adapter part and the end cover.

[0008] Furthermore, a locking component is respectively provided on both sides of the slide slot, and the locking component is used to lock the adapter part on the end cover. The locking component includes a pressing part, a rebound part, a hinge part and a locking part; the hinge part is installed on the base through a rotating shaft, the hinge part is connected to the locking part, the pressing part is arranged on the side of the locking part away from the slide slot, the rebound part is connected to the pressing part and one end is against the slide slot.

[0009] Furthermore, a locking groove is provided on the slide groove, a locking nut is provided in the locking groove, a locking screw is provided on the adapter, and the locking nut is matched with the locking screw.

[0010] Furthermore, a quick-release elastic piece is sleeved on the end cover.

[0011] An instant water heater comprises a water heater shell, a circuit board, a water inlet pipe and a water outlet pipe, and also comprises the above-mentioned thick film heating device, wherein two sets of adapter interfaces are respectively connected with the water inlet pipe and the water outlet pipe; the water heater shell comprises side panels and a front panel, the side panels are detachably connected with the base, and the front panels are detachably connected with the side panels; the circuit board comprises a main control panel and an operating panel, the main control panel is mounted on the base, and the operating panel is mounted on the side panels.

[0012] Furthermore, a temperature transfer component is provided on the base, and the temperature transfer component includes a hinged rod, a temperature conduction block and a temperature sensor. The hinged rod is hinged on the base, and the temperature conduction block is installed on the hinged rod. Multiple groups of buffer elastic parts are provided between the temperature conduction block and the hinged rod, and the temperature sensor is installed on the temperature conduction block. An opening is provided on the heat pipe shell, and the temperature sensor contacts the thick film heating pipe through the opening. A temperature transfer lock is also hinged on the base.

[0013] Furthermore, a reversing valve is arranged on the water inlet pipe, and three groups of interfaces are arranged on the reversing valve. The reversing valve includes a base plate, a driving motor and a three-way block. The driving motor is fixedly mounted on the base plate, the three-way block is installed in the base plate and the three-way block can rotate in the base plate, and the driving motor is used to drive the three-way block to rotate. A T-shaped pipe is arranged in the three-way block, and the T-shaped pipe is used to connect any two groups of interfaces.

[0014] Furthermore, an air pump is connected to one group of interfaces of the reversing valve.

[0015] Compared with the prior art, the thick film heating device and instant water heater provided by the utility model have the following advantages. When the heat source component needs to be replaced, the user can first remove the temperature transfer component, loosen the locking screw, and then press the pressing part to release the locking part. After the restriction is removed, the adapter part and the heat source component will automatically pop out under the action of the quick-release elastic part, which is convenient for replacement and maintenance. When installing a new heat source component, it is only necessary to insert the new heat source component into the adapter interface along the slide groove, and then insert the adapter part into the end cover at the other end of the heat source component until it is locked by the locking part to complete the installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional view of the medium-thick film heating device of the utility model;

[0017] Figure 2 It is a three-dimensional view of the base in the utility model;

[0018] Figure 3 It is a three-dimensional view of the heat source component in the utility model;

[0019] Figure 4 It is a cross-sectional view of the heat source assembly in the utility model;

[0020] Figure 5 It is an exploded view of the heat source assembly in the utility model;

[0021] Figure 6 It is a three-dimensional cross-sectional view of the transfer part of the utility model;

[0022] Figure 7 It is a three-dimensional cross-sectional view of the mounting seat in the utility model;

[0023] Figure 8 It is a three-dimensional view of the lock component in the utility model;

[0024] Fig. 9 It is a three-dimensional cross-sectional view of the instant water heater in the utility model;

[0025] Fig.10 It is a three-dimensional view of the internal structure of the instant water heater in the utility model;

[0026] Fig.11 It is a front view of the internal structure of the instant water heater in the utility model;

[0027] Fig.12 It is a three-dimensional view of the medium temperature transfer component of the utility model;

[0028] Fig.13 It is a cross-sectional view of the medium temperature transfer component of the utility model;

[0029] Fig.14 yes Fig.13A partial enlarged view of part A;

[0030] Fig.15 It is a three-dimensional cross-sectional view of the reversing valve in the utility model;

[0031] Fig.16 It is an exploded view of the reversing valve in the utility model.

[0032] Description of reference numerals:

[0033] Wherein: 1. base; 10. slide slot; 11. locking slot;

[0034] 2. Heat source assembly; 20. Heat pipe housing; 21. Thick film heating pipe; 22. Water pipe; 23. Sealing ring; 24. End cover; 25. Sealing gasket; 26. Quick release elastic member; 27. Opening;

[0035] 3. Mounting seat; 30. Adapter interface;

[0036] 4. Adapter; 40. Locking screw;

[0037] 5. Locking part; 50. Articulated part; 51. Locking part; 52. Pressing part; 53. Rebound part;

[0038] 6. Water heater housing; 60. Side panel; 61. Panel; 62. Water outlet pipe; 63. Water inlet pipe; 64. Circuit board; 65. Main control board; 66. Operation panel;

[0039] 7. reversing valve; 70. base plate; 71. three-way block; 72. driving motor; 73. air pump;

[0040] 8. Temperature transfer assembly; 80. Articulated rod; 81. Temperature conduction block; 82. Buffer elastic member; 83. Temperature sensor; 84. Temperature transfer lock. DETAILED DESCRIPTION

[0041] The present invention is described in detail below in conjunction with specific embodiments.

[0042] In the present utility model, unless otherwise clearly specified and limited, when terms such as "set on", "connected", and "connected" appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or connected through one or more intermediate media. For those skilled in the art, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances. The directional words that appear in the present utility model are to better illustrate the characteristics of the features and the relationship between the features. It should be understood that when the placement direction of the present utility model changes, the characteristics of the features and the direction of the relationship between the features also change accordingly. Therefore, the directional words do not constitute an absolute limitation on the characteristics of the features and the relationship between the features in space, but only play a relative limitation role.

[0043] like Figures 1 to 8 As shown, the utility model provides a thick film heating device, including a base 1, a heat source assembly 2 is arranged on the base 1, the heat source assembly 2 includes a water pipe 22, a thick film heating pipe 21, a heat pipe shell 20 and an end cover 24, the water pipe 22 is installed in the thick film heating pipe 21, and the inner diameter of the thick film heating pipe 21 is consistent with the outer diameter of the water pipe 22, end covers 24 are installed at both ends of the thick film heating pipe 21, a sealing ring 23 is arranged between the end cover 24 and the thick film heating pipe 21, and the heat pipe shell 20 is arranged on the periphery of the thick film heating pipe 21 and is fixedly connected to the end cover 24;

[0044] The base 1 is provided with a slide groove 10 and a mounting seat 3, and the mounting seat 3 is provided with an adapter interface 30, the adapter interface 30 is matched with the end cover 24, and the slide groove 10 is matched with the heat pipe shell 20; the adapter interface 30 is connected with the water pipe 22 through the end cover 24, a sealing gasket 25 is provided between the adapter interface 30 and the end cover 24, and an adapter part 4 is installed at the end cover 24 away from the adapter interface 30.

[0045] In this embodiment, two groups of adapter interfaces 30 are provided on the mounting base 3, and the two groups of adapter interfaces 30 are respectively connected to a group of heat source components 2; the adapter part 4 is used to connect the two groups of heat source components 2, and a sealing gasket 25 is provided between the adapter part 4 and the end cover 24.

[0046] In this embodiment, a locking component 5 is respectively provided on both sides of the slide groove 10, and the locking component 5 is used to lock the adapter part 4 on the end cover 24. The locking component 5 includes a pressing portion 52, a rebound portion 53, a hinge portion 50 and a locking portion 51; the hinge portion 50 is installed on the base 1 through a rotating shaft, the hinge portion 50 is connected to the locking portion 51, the pressing portion 52 is arranged on the side of the locking portion 51 away from the slide groove 10, the rebound portion 53 is connected to the pressing portion 52 and one end of the rebound portion 53 is against the slide groove 10.

[0047] Through the above design, when installing the heat source assembly 2, the user can first insert the two groups of heat source assemblies 2 into the corresponding adapter interface 30 respectively. When inserting the heat source assembly 2, the user only needs to make the heating tube shell 20 fit the slide groove 10, and then slide along the slide groove 10 to insert the end cover 24 on one side of the heat source assembly 2 into the adapter interface 30; then align the interface of the adapter 4 with the end cover 24 on the side away from the adapter interface 30 of the two groups of heat source assemblies 2, and then press hard along the direction of the slide groove 10 to install the adapter 4 on the end cover 24. When the adapter 4 is pressed down along the direction of the slide groove 10, the pressing part 52 will push the locking part 5 outward. When the adapter 4 is inserted into the appropriate position, the locking part 5 loses its restriction, and the locking part 5 automatically resets under the elastic force of the rebound part 53. At this time, the locking part 51 will be stuck on the adapter 4. In order to clamp the adapter 4 more firmly, in the present embodiment, two locking components 5 are provided on the base 1 , and the two locking components 5 are respectively provided on the left and right sides of the slide groove 10 .

[0048] In this embodiment, in order to make the locking component 5 lock the adapter 4 more securely, the contact surfaces of the locking portion 51 and the adapter 4 are both inclined surfaces.

[0049] In this embodiment, a locking groove 11 is provided on the slide groove 10 , a locking nut is provided in the locking groove 11 , a locking screw 40 is provided on the adapter 4 , and the locking nut fits with the locking screw 40 .

[0050] The cooperation between the locking screw 40 and the locking nut can firmly lock the adapter 4 on the slide groove 10, thereby further fixing the heat source component 2 in the slide groove 10, preventing water from seeping out from the connection between the heat source component 2 and the adapter 4 and the adapter interface 30 during normal operation.

[0051] In this embodiment, a quick-release elastic member 26 is sleeved on the end cover 24. When the heat source assembly 2 needs to be removed, the maintenance personnel only need to press the pressing portion 52 on the locking member 5 to make the locking member 5 expand to both sides respectively. After the restriction of the locking portion 51 is removed, the adapter portion 4, the heat source assembly 2 and the adapter interface 30 will be automatically separated under the action of the quick-release elastic member 26, so that the maintenance personnel can remove the heat source assembly 2 conveniently.

[0052] like Figures 9 to 16 As shown, the utility model also provides an instant water heater, including a water heater housing 6, a circuit board 64, a water inlet pipe 63 and a water outlet pipe 62, and also includes the above-mentioned thick film heating device, two sets of adapter interfaces 30 are respectively connected to the water inlet pipe 63 and the water outlet pipe 62; the water heater housing 6 includes a side panel 60 and a panel 61, the side panel 60 is detachably connected to the base 1, and the panel 61 is detachably connected to the side panel 60; the circuit board 64 includes a main control panel 65 and an operating panel 66, the main control panel 65 is installed on the base 1, and the operating panel 66 is installed on the side panel 60.

[0053] In the present embodiment, an extension portion is provided on the side panel 60, and the extension portion is used to install the operating panel 66; the operating panel 66 is close to the panel 61, and the control buttons on the operating panel 66 are all contact switches, which can be operated even through the panel 61, and at the same time, it can also avoid additional holes in the panel 61 to affect the overall sealing; since the contact switch related technology belongs to the prior art and is not the improvement point of the present utility model, it is not elaborated in this embodiment.

[0054] In this embodiment, a temperature transfer component 8 is provided on the base 1, and the temperature transfer component 8 includes a hinged rod 80, a temperature conduction block 81 and a temperature sensor 83. The hinged rod 80 is hinged on the base 1, and the temperature conduction block 81 is installed on the hinged rod 80. A plurality of groups of buffer elastic members 82 are provided between the temperature conduction block 81 and the hinged rod 80, and the temperature sensor 83 is installed on the temperature conduction block 81; an opening 27 is provided on the heat pipe shell 20, and the temperature sensor 83 contacts the thick film heating pipe 21 through the opening 27; and a temperature transfer lock 84 is also hinged on the base 1.

[0055] With the above-mentioned design scheme, after fixing the heat source assembly 2 on the base 1, the user can directly rotate the hinge rod 80 onto the heat pipe housing 20, and after aligning the temperature conducting block 81 with the opening 27, gently press down the hinge rod 80 to make the temperature transfer lock 84 hook the hinge rod 80. Since a buffer elastic member 82 is provided between the temperature conducting block 81 and the hinge rod 80, when the temperature conducting block 81 does not contact the thick film heating tube 21, the temperature conducting block 81 is away from the hinge rod 80 under the action of the buffer elastic member 82; when the temperature conducting block 81 contacts the thick film heating tube 21, continuing to press the hinge rod 80 will no longer cause the temperature conducting block 81 to move. At this time, under the action of the buffer elastic member 82, the temperature conducting block 81 can be prevented from crushing the thick film heating tube 21. At the same time, the buffer elastic member 82 can also make the temperature conducting block 81 close to the thick film heating tube 21, ensuring that the temperature sensor 83 can accurately record the temperature change of the thick film heating tube 21.

[0056] When replacing the heat source assembly 2 , the maintenance personnel only need to press the temperature transfer lock 84 to make the hinge rod 80 automatically pop up, and then complete the replacement of the heat source assembly 2 through the above replacement steps.

[0057] In this embodiment, a reversing valve 7 is provided on the water inlet pipe 63, and three groups of interfaces are provided on the reversing valve 7. The reversing valve 7 includes a base plate 70, a driving motor 72 and a three-way block 71. The driving motor 72 is fixedly installed on the base plate 70, the three-way block 71 is installed in the base plate 70 and the three-way block 71 can rotate in the base plate 70, and the driving motor 72 is used to drive the three-way block 71 to rotate. A T-shaped pipe is provided in the three-way block 71, and the T-shaped pipe is used to connect any two groups of interfaces.

[0058] In this embodiment, an air pump 73 is connected to one group of interfaces of the reversing valve 7 .

[0059] The reversing valve 7 is used to change the connection direction of the water inlet pipe 63. During normal use, the reversing valve 7 controls the water inlet pipe 63 to be connected with the external water flow. The external water flows into a group of water pipes 22 through the water inlet pipe 63, and then flows to another group of water pipes 22 through the adapter 4, and finally flows out from the water outlet pipe 62. At this time, the air pump 73 is not connected to the water inlet pipe 63; when the heat source component 2 needs to be replaced, the reversing valve 7 changes direction to disconnect the water inlet pipe 63 from the external water pipe, and connect the water inlet pipe 63 with the air pump 73. The air pump 73 can transport gas to the water inlet pipe 63. The gas will drain the residual water in the water inlet pipe 63 and the heat source component 2, reduce the residual water in the water pipe 22, and facilitate replacement by maintenance personnel.

[0060] Compared with the prior art, the thick film heating device and instant water heater provided by the utility model have the following advantages. When the heat source component 2 needs to be replaced, the user can first remove the temperature transfer component 8, loosen the locking screw 40, and then press the pressing part 52 to release the locking component 5. After the restriction is removed, the adapter part 4 and the heat source component 2 will automatically pop out under the action of the quick-release elastic part 26, which is convenient for replacement and maintenance. When installing a new heat source component 2, it is only necessary to insert the new heat source component 2 into the adapter interface 30 along the slide groove 10, and then insert the adapter part 4 into the end cover 24 at the other end of the heat source component 2 until it is locked by the locking component 5 to complete the installation.

[0061] In the absence of conflict, the above-mentioned embodiments and features thereof may be combined with each other.

[0062] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit the protection scope of the utility model. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the utility model.

Claims

1. A thick film heating device, comprising a base (1), characterized in that: A heat source assembly (2) is arranged on the base (1), the heat source assembly (2) comprising a water pipe (22), a thick film heating pipe (21), a heat pipe housing (20) and an end cover (24); the water pipe (22) is installed in the thick film heating pipe (21), and the inner diameter of the thick film heating pipe (21) is consistent with the outer diameter of the water pipe (22); end covers (24) are installed at both ends of the thick film heating pipe (21); a sealing ring (23) is arranged between the end cover (24) and the thick film heating pipe (21); and the heat pipe housing (20) is arranged on the periphery of the thick film heating pipe (21) and is fixedly connected to the end cover (24); The base (1) is provided with a slide groove (10) and a mounting seat (3), and the mounting seat (3) is provided with two sets of adapter interfaces (30), the adapter interfaces (30) are matched with the end cover (24), and the slide groove (10) is matched with the heat pipe shell (20); the adapter interface (30) is connected to the water pipe (22) through the end cover (24), a sealing gasket (25) is provided between the adapter interface (30) and the end cover (24), and an adapter portion (4) is installed at the end cover (24) on a side away from the adapter interface (30).

2. A thick film heating device according to claim 1, characterized in that: The two sets of adapter interfaces (30) are respectively connected to a set of heat source components (2); the adapter portion (4) is used to connect the two sets of heat source components (2), and a sealing gasket (25) is provided between the adapter portion (4) and the end cover (24).

3. A thick film heating device according to claim 2, characterized in that: A locking component (5) is provided on both sides of the slide groove (10), and the locking component (5) is used to lock the adapter part (4) on the end cover (24). The locking component (5) comprises a pressing part (52), a rebound part (53), a hinge part (50) and a locking part (51); the hinge part (50) is mounted on the base (1) via a rotating shaft, the hinge part (50) is connected to the locking part (51), the pressing part (52) is arranged on a side of the locking part (51) away from the slide groove (10), and the rebound part (53) is connected to the pressing part (52), and one end of the rebound part (53) is against the slide groove (10).

4. A thick film heating device according to claim 2, characterized in that: A locking groove (11) is provided on the slide groove (10), a locking nut is provided in the locking groove (11), a locking screw (40) is provided on the adapter portion (4), and the locking nut fits with the locking screw (40).

5. A thick film heating device according to claim 1, characterized in that: A quick-release elastic member (26) is sleeved on the end cover (24).

6. An instant water heater, comprising a water heater housing (6), a circuit board (64), a water inlet pipe (63) and a water outlet pipe (62), characterized in that: It also includes a thick film heating device as described in any one of claims 1 to 5, wherein the two sets of adapter interfaces (30) are respectively connected to the water inlet pipe (63) and the water outlet pipe (62); the water heater housing (6) includes a side panel (60) and a panel (61), the side panel (60) is detachably connected to the base (1), and the panel (61) is detachably connected to the side panel (60); the circuit board (64) includes a main control panel (65) and an operating panel (66), the main control panel (65) is installed on the base (1), and the operating panel (66) is installed on the side panel (60).

7. The instant water heater according to claim 6, characterized in that: A temperature transfer component (8) is arranged on the base (1), and the temperature transfer component (8) comprises a hinged rod (80), a temperature conduction block (81) and a temperature sensor (83); the hinged rod (80) is hinged on the base (1), the temperature conduction block (81) is installed on the hinged rod (80), a plurality of groups of buffer elastic members (82) are arranged between the temperature conduction block (81) and the hinged rod (80), and the temperature sensor (83) is installed on the temperature conduction block (81); an opening (27) is arranged on the heat pipe housing (20), and the temperature sensor (83) contacts the thick film heating pipe (21) through the opening (27); and a temperature transfer lock buckle (84) is also hinged on the base (1).

8. The instant water heater according to claim 7, characterized in that: A reversing valve (7) is arranged on the water inlet pipe (63), and three groups of interfaces are arranged on the reversing valve (7). The reversing valve (7) comprises a base plate (70), a driving motor (72) and a three-way block (71). The driving motor (72) is fixedly mounted on the base plate (70), the three-way block (71) is mounted in the base plate (70) and the three-way block (71) can rotate in the base plate (70), and the driving motor (72) is used to drive the three-way block (71) to rotate. A T-shaped pipe is arranged in the three-way block (71), and the T-shaped pipe is used to connect any two groups of interfaces.

9. The instant water heater according to claim 8, characterized in that: An air pump (73) is connected to one of the interfaces of the reversing valve (7).

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