Heat exchange coil assembly, hot water tank, water heater and control method of heat exchange coil assembly

Abstract

The present invention provides a heat coil assembly, a hot water tank, a water heater and a control method for a heat exchange coil assembly, which relates to the technical field of water heaters and solves the technical problem of long hot water preparation time when a heat exchange coil heats the water in the hot water tank. The heat exchange coil assembly includes a support driving assembly and a heat exchange coil with a heat exchange agent flowing inside. The support driving assembly is in transmission connection with the heat exchange coil. The heat exchange coil is movably arranged in the water tank driven by the support driving assembly, and the heat exchange coil can move and stay at the water outlet position of the water tank. The heat exchange coil assembly of the present invention moves in the water tank driven by the support driving assembly. When a user needs to obtain hot water urgently, the heat exchange coil assembly can be moved to the water outlet position to heat the water at the water outlet position in the water tank first. In this way, when the water outlet of the water tank is opened, the heated water near the water outlet can be obtained first, meeting the user's urgent need for hot water.

Description

Technical Field

[0001] The present invention relates to the technical field of water heaters, and more particularly to a heat coil assembly, a hot water tank, a water heater, and a control method for a heat exchange coil assembly. Background Art

[0002] Currently, a hot water tank generally consists of a water tank and a heat exchange coil fixed in the water tank. The heat exchange coil has an inlet and an outlet extending out of the water tank. The heat exchange medium enters the heat exchange coil through the inlet and flows out through the outlet. The heat exchange medium flowing in the heat exchange coil is used to exchange heat with the water in the water tank.

[0003] In the prior art, the outlet of the hot water tank is provided at the upper part of the water tank, while the heat exchange coil is usually arranged at the bottom of the water tank.

[0004] The applicant of the present invention has found that the prior art has at least the following technical problems: The heat exchange coil is fixedly arranged at the bottom in the water tank, resulting in low heat exchange efficiency. The heat exchange coil needs to heat the water in the entire water tank before the user can obtain hot water. Therefore, the heating time of the water in the water tank is long. When the user does not turn on the hot water production function of the hot water tank in advance but urgently needs to use hot water, such as in a hurry to wash or wash clothes. At this time, if the entire hot water tank is heated, it will delay the user's water use time. Summary of the Invention

[0005] The purpose of the present invention is to provide a heat coil assembly, a hot water tank, a water heater, and a control method for a heat exchange coil assembly to solve the technical problem of long hot water preparation time caused by the heat exchange coil heating the water in the hot water tank in the prior art; the preferred technical solutions provided by the present invention can produce many technical effects as described below.

[0006] To achieve the above purpose, the present invention provides the following technical solutions:

[0007] A heat exchange coil assembly provided by the present invention includes a support driving assembly and a heat exchange coil with a heat exchange medium flowing inside. Among them: The support driving assembly is in transmission connection with the heat exchange coil, and the heat exchange coil is movably arranged in the water tank driven by the support driving assembly, and the heat exchange coil can move and stay at the outlet position of the water tank.

[0008] Preferably, the heat exchange medium inlet of the heat exchange coil is connected to an inlet pipeline, and the heat exchange medium outlet of the heat exchange coil is connected to an outlet pipeline. Among them:

[0009] The inlet pipeline and the outlet pipeline are telescopically arranged when the heat exchange coil moves so that the heat exchange medium flows in the heat exchange coil.

[0010] Preferably, both the inlet pipeline and the outlet pipeline include a movable pipe and a fixed pipe connected to each other. Among them:

[0011] One of the movable tube and the fixed tube is an inner tube body, and the other is an outer tube body, and at least a portion of the inner tube body extends into the outer tube body;

[0012] The movable tube is connected to the heat exchange coil, and the heat exchange coil can pull or push the movable tube to move when moving, and adjust the length of the inner tube body in the outer tube body.

[0013] Preferably, a first limiting portion and a second limiting portion are connected to the inner wall or the outer wall of the fixed tube, wherein:

[0014] The first limiting portion is located above the second limiting portion, and at least a portion of the movable tube is located between the first limiting portion and the second limiting portion, the first limiting portion is used to abut against the end of the movable tube away from the heat exchange coil, and the second limiting portion is used to abut against the wall of the movable tube to limit the displacement of the movable tube.

[0015] Preferably, a protruding structure is provided on the wall surface of the movable tube, and the protruding structure abuts against the wall surface of the fixed tube, so that the movable tube stops moving when the heat exchange coil stops moving and remains stable.

[0016] Preferably, there are more than two protruding structures arranged at intervals along the axial direction of the movable tube, and the protruding structures can pass through the second limiting portion and move with the heat exchange coil when driven by the heat exchange coil.

[0017] Preferably, the protrusion structure is arranged telescopically along the radial direction of the moving tube.

[0018] Preferably, a groove is provided on the wall surface of the moving tube, and the protruding structure includes a bump and an elastic member, wherein:

[0019] The groove is arranged along the radial direction of the moving tube, the elastic member is located in the groove, and the fixed end of the elastic member is fixed to the groove, the free end of the elastic member is fixedly connected to the protrusion, the protrusion can be pressed into the groove when it is squeezed with the second limiting portion, and after being disengaged from the second limiting portion, it is pushed by the elastic member to a position protruding from the wall surface of the moving tube.

[0020] Preferably, the support drive assembly includes a drive device, a screw rod and a guide rail, wherein:

[0021] The output shaft of the driving device is transmission-connected with the screw rod, a slider is fixed on the heat exchange coil, the slider is threadedly connected with the screw rod, the guide rail is slidably connected with the slider and is used to limit the rotation of the slider, and the driving device can drive the heat exchange coil to move up and down when rotating forward and reverse.

[0022] The present invention also provides a hot water tank, which includes a water tank and the above-mentioned heat exchange coil assembly.

[0023] The present invention also provides a water heater, which includes the above-mentioned hot water tank.

[0024] The present invention also provides a control method for the heat exchange coil assembly. When using the above-mentioned heat exchange coil assembly, when the water tank urgently produces hot water, the heat exchange coil is moved to the position of the water outlet of the water tank and stays for heating; when the water tank normally produces hot water, the heat exchange coil is located on the side opposite to the water outlet in the water tank, or the heat exchange coil swings back and forth in the water tank.

[0025] Compared with the prior art, the heat exchange coil assembly, hot water tank, water heater and control method for the heat exchange coil assembly provided by the present invention have the following beneficial effects: The heat exchange coil assembly moves in the water tank driven by the support driving assembly. When the user needs to urgently obtain hot water, the heat exchange coil assembly can be moved to the position of the water outlet, so as to realize the first heating of the water at the water outlet position in the water tank. In this way, when the water outlet of the water tank is opened, the heated water near the water outlet can be obtained first; and when the heat exchange coil moves in the water tank, it can swing back and forth, which can stir the water in the water tank and improve the heat exchange efficiency. This hot water tank has the above-mentioned heat exchange coil assembly, which can meet the user's urgent need for hot water without changing the volume of the water tank and the installation space, and can shorten the time to obtain hot water. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0027] Figure 1 It is a schematic structural diagram of the heat exchange coil located in the water tank;

[0028] Figure 2 It is an axial sectional structural diagram of the heat exchange coil located at the top inside the water tank;

[0029] Figure 3 It is an axial sectional structural diagram of the heat exchange coil located in the middle of the water tank;

[0030] Figure 4 It is an axial sectional structural diagram of the heat exchange coil located at the bottom inside the water tank;

[0031] Figure 5It is a schematic diagram of the mating structure of the movable pipe and the fixed pipe;

[0032] Figure 6 It is a schematic diagram of the outer wall surface structure of the movable pipe;

[0033] Figure 7 It is a schematic diagram of the convex structure;

[0034] Figure 8 It is a schematic diagram of the mating structure of the support drive assembly and the heat exchange coil.

[0035] In the figure: 1. Heat exchange coil; 2. Inlet pipeline; 21. Fixed pipe; 22. Movable pipe; 221. Groove; 3. Outlet pipeline; 4. Water tank; 5. Second limiting part; 6. First limiting part; 7. Convex structure; 71. Convex block; 72. Elastic part; 81. Motor; 82. Slide block; 83. Lead screw; 84. Guide rail. Specific embodiments

[0036] To make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art without creative efforts based on the embodiments in the present invention fall within the scope protected by the present invention.

[0037] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "length", "width", "height", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "side", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be construed as a limitation to the present invention. In the description of the present invention, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0038] The embodiment of the present invention provides a heat exchange coil assembly, a hot water tank, a water heater and a control method for the heat exchange coil assembly. The heat exchange coil can move in the water tank, enabling users to quickly obtain hot water in case of emergency and improving the heat exchange efficiency between the heat exchange coil and the water in the water tank.

[0039] The following combines Figures 1-8 shown to elaborate on the technical solutions provided by the present invention in more detail.

[0040] Embodiment 1

[0041] As Figures 1-8As shown in the figure, this embodiment provides a heat exchange coil assembly, which includes a support driving assembly and a heat exchange coil 1 with a heat exchange agent flowing inside. Among them: The support driving assembly is in transmission connection with the heat exchange coil 1, and the heat exchange coil 1 is movably arranged in the water tank 4 driven by the support driving assembly, and the heat exchange coil 1 can move to the water outlet position of the water tank 4 and stay for heating.

[0042] Among them, usually the water outlet of the hot water tank is arranged at the upper part of the water tank 4. Therefore, the heat exchange coil 1 in this embodiment is movably arranged up and down in the water tank 4 driven by the support driving assembly. Or, when the water outlet of the water tank 4 is arranged on the left or right side of the water tank 4, the heat exchange coil 1 moves left and right in the water tank 4 driven by the support driving assembly.

[0043] In this embodiment, when the user needs to obtain hot water urgently, the heat exchange coil 1 moves and stays at the water outlet position in the water tank 4; when the water tank 4 normally produces hot water, the heat exchange coil 1 stays on the side opposite to the water outlet in the water tank 4. In this embodiment, when the water outlet is located at the top of the water tank 4, therefore, the heat exchange coil 1 stays at the bottom of the water tank 4, or the heat exchange coil 1 swings up and down or left and right in the water tank 4 driven by the support driving assembly to stir the water in the water tank 4 and improve the heat exchange efficiency between the heat exchange coil 1 and the water in the water tank 4.

[0044] The heat exchange agent in the heat exchange coil 1 can be hot water or other fluids that can be used to heat the water in the water tank 4.

[0045] For the heat exchange coil assembly of this embodiment, the heat exchange coil assembly moves in the water tank 4 driven by the support driving assembly. When the user needs to obtain hot water urgently, the heat exchange coil assembly can be moved to the water outlet position to realize the first heating of the water at the water outlet position in the water tank 4. In this way, when the water outlet of the water tank 4 is opened, the heated water near the water outlet can be obtained first; and when the heat exchange coil 1 moves in the water tank 4, it can swing back and forth, which can stir the water in the water tank 4 and improve the heat exchange efficiency.

[0046] See Figures 1-4 As shown in the figure, the heat exchange coil 1 is of a spiral structure to increase the contact area between water and the heat exchange agent in the limited internal space of the water tank 4.

[0047] When the heat exchange coil 1 moves in the water tank 4, in order to ensure that there is always a heat exchange agent flowing in the heat exchange coil 1. As an optional implementation manner, see Figures 1-4 As shown in the figure, the heat exchange agent inlet of the heat exchange coil 1 is connected to an inlet pipeline 2, and the heat exchange agent outlet of the heat exchange coil 1 is connected to an outlet pipeline 3. Among them: The inlet pipeline 2 and the outlet pipeline 3 are telescopically arranged when the heat exchange coil 1 moves so that the heat exchange agent can flow in the heat exchange coil 1.

[0048] SeeFigures 1-3 As shown, when the water outlet is located at the top of the water tank 4 and the water tank 4 does not need to urgently produce hot water, the heat exchange coil 1 stays at the bottom inside the water tank 4, facilitating the heat exchange coil 1 to heat the water in the entire water tank 4 and then flow out from the water outlet at the top; when the water tank 4 needs to urgently produce hot water, the support driving assembly moves the heat exchange coil 1 upward, and both the inlet pipeline 2 and the outlet pipeline 3 contract during the upward movement of the heat exchange coil 1 to prevent affecting the movement of the heat exchange coil 1 and ensure that the heat exchange coil 1 can move to the position of the water outlet at the top of the water tank 4. After urgently heating the hot water and when normal hot water production is required, the support driving assembly drives the heat exchange coil 1 to move downward again. At this time, the inlet pipeline 2 and the outlet pipeline 3 extend and always ensure communication with the heat exchange coil 1 until the heat exchange coil 1 descends to the bottom inside the water tank 4. When the water outlet is located at the bottom or the side of the water tank 4, the principle is the same.

[0049] The telescopic structures of the above-mentioned inlet pipeline 2 and outlet pipeline 3 can ensure that the inlet pipeline 2 and the outlet pipeline 3 are always connected to the heat exchange coil 1 when the heat exchange coil 1 moves, so that the heat exchange agent always flows through the heat exchange coil 1.

[0050] As an implementation manner not shown in the figure, both the above-mentioned inlet pipeline 2 and outlet pipeline 3 are flexible hoses with sufficient length. When the heat exchange coil 1 moves in the direction close to the inlet pipeline 2 and the outlet pipeline 3, the inlet pipeline 2 and the outlet pipeline 3 are gradually stacked inside the water tank 4. Since both are flexible hoses, it will not affect the movement of the heat exchange coil 1, and the inlet pipeline 2 and the outlet pipeline 3 always allow the heat exchange agent to flow inside during the deformation process. When the heat exchange coil 1 moves in the direction away from the inlet pipeline 2 and the outlet pipeline 3, the stacked inlet pipeline 2 and outlet pipeline 3 stretch out, and the length is sufficient to allow the heat exchange coil 1 to move to the top or bottom inside the water tank 4.

[0051] In this embodiment, a specific implementation manner of the inlet pipeline 2 and the outlet pipeline 3 is provided. Refer to Figure 5 As shown, both the inlet pipeline 2 and the outlet pipeline 3 in this embodiment include a movable pipe 22 and a fixed pipe 21 that are connected and communicate with each other. Figure 5 Taking the inlet pipeline 2 as an example for illustration, among them: among the movable pipe 22 and the fixed pipe 21, one of them is the inner pipe body and the other is the outer pipe body, and at least part of the inner pipe body extends into the outer pipe body; the movable pipe 22 is connected and communicates with the heat exchange coil 1, and the heat exchange coil 1 can pull or push the movable pipe 22 to move when moving, and adjust the length of the inner pipe body located in the outer pipe body.

[0052] Among them, the "inner pipe body" refers to the pipe body located inside the sleeved structure of the movable pipe 22 and the fixed pipe 21, and the "outer pipe body" refers to the pipe body located outside the sleeved structure of the movable pipe 22 and the fixed pipe 21.

[0053] In this embodiment, the water outlet is located at the top of the water tank 4, see Figure 5 As shown, the fixed tube 21 is located on the upper part of the mobile tube 22, and at least part of the mobile tube 22 is sleeved in the fixed tube 21, that is, see Figure 5 The fixed tube 21 is the outer tube body, the movable tube 22 is the inner tube body, and the movable tube 22 is connected to the heat exchange coil 1. In this way, when the heat exchange coil 1 moves downward, it can pull the movable tube 22 to move downward, reduce the length of the movable tube 22 located in the fixed tube 21, and extend the inlet pipeline 2 and the outlet pipeline 3; similarly, when the heat exchange coil 1 moves upward, it can push the movable tube 22 to move upward, increase the length of the movable tube 22 located in the fixed tube 21, and shorten the inlet pipeline 2 and the outlet pipeline 3.

[0054] The above structure enables the inlet pipeline 2 and the outlet pipeline 3 to expand and contract as the heat exchange coil 1 moves, thereby ensuring that the inlet pipeline 2 and the outlet pipeline 3 are always connected to the heat exchange coil 1 when the heat exchange coil 1 moves.

[0055] In this embodiment, the first limiting portion and the second limiting portion 5 are connected to the inner wall or the outer wall of the fixed tube 21, see Figure 5 As shown in the figure, the fixed tube 21 is an outer tube body, the movable tube 22 is an inner tube body, and the inner wall of the fixed tube 21 is connected with the first limiting portion and the second limiting portion 5; if the fixed tube 21 is an inner tube body and the movable tube 22 is an outer tube body, the outer wall of the fixed tube 21 is connected with the first limiting portion and the second limiting portion 5; wherein: see Figure 5 The first limiting portion is located above the second limiting portion 5, and at least part of the movable tube 22 is located between the first limiting portion and the second limiting portion 5. The first limiting portion is used to abut against the end of the movable tube 22 away from the heat exchange coil 1, and the second limiting portion 5 is used to abut against the wall of the movable tube 22 to limit the displacement of the movable tube 22.

[0056] like Figure 5 As shown, Figure 5 The lower end of the middle movable tube 22 is connected to the heat exchange coil 1. At this time, the upper end of the movable tube 22 is against the first limiting portion 6. At this time, the inlet pipeline 2 is in the maximum contraction state, the length of the inlet pipeline 2 is the smallest, and the heat exchange coil 1 stays at the water outlet position at the top of the water tank 4.

[0057] See also Figure 5 In this embodiment, the first limiting portion 6 is a gasket, and the second limiting portion 5 is a retaining ring. The retaining ring abuts against the outer wall of the moving tube 22 to limit the displacement of the moving tube 22.

[0058] In order to ensure that the inlet pipe 2 and the outlet pipe 3 can remain stable at a certain position during the expansion and contraction process, see Figure 6As shown in the figure, in this embodiment, a convex structure 7 is provided on the wall surface of the moving pipe 22. The convex structure 7 abuts against the wall surface of the fixed pipe 21 so that the moving pipe 22 remains stable when the heat exchange coil 1 stops moving. The convex structure 7 abuts against the outer wall of the fixed pipe 21 (when the moving pipe 22 is an outer pipe body, the convex structure 7 abuts against the inner wall of the fixed pipe 21), which can make the moving pipe 22 remain stable when the heat exchange coil 1 stops moving.

[0059] As an alternative embodiment, two or more convex structures 7 are arranged at intervals along the axial direction of the moving pipe 22, and the convex structure 7 can pass through the second limiting part 5 under the drive of the heat exchange coil 1 and move with the heat exchange coil 1.

[0060] Wherein, when the convex structure 7 abuts against the wall surface of the fixed pipe 21 and can bear the weight of the heat exchange coil 1, the convex structure 7 can make the moving pipe 22 remain in a stable state by abutting against the wall surface of the fixed pipe 21.

[0061] Even if the convex structure 7 abuts against the wall surface of the fixed pipe 21 and cannot bear the weight of the heat exchange coil 1, the convex structure 7 can still abut against the second limiting part 5 and limit the movement of the moving pipe 22 when the heat exchange coil 1 stops moving, so that the moving pipe 22 remains in a stable state.

[0062] See Figure 5 and Figure 6 As shown in the figure, when the heat exchange coil 1 moves upward or downward, the moving pipe 22 is pulled or pushed to pass through the second limiting part 5; when the heat exchange coil 1 stops moving, the pulling force or pushing force on the moving pipe 22 disappears. In this embodiment, the convex structure 7 abuts against the upper surface of the second limiting part 5, which can further fix the moving pipe 22.

[0063] Two or more convex structures 7 are provided on the moving pipe 22. The convex structure 7 can pass through the second limiting part 5 under the pulling and pushing of the heat exchange coil 1. Different convex structures 7 can cooperate with the second limiting part 5 and abut against the inner wall of the fixed pipe 21, so that the inlet pipeline 2 and the outlet pipeline 3 can remain stable in multiple position states.

[0064] When the lowermost convex structure 7 abuts against the upper surface of the second limiting part 5, the inlet pipeline 2 is in the maximum extended state.

[0065] In order to enable the convex structure 7 to pass through the second limiting part 5 under the pulling or pushing of the heat exchange coil 1, as an alternative embodiment, the convex structure 7 is arranged to be radially telescopic along the moving pipe 22.

[0066] When the convex structure 7 passes through the second limiting part 5, the convex structure 7 contracts radially along the moving pipe 22, so that the convex structure 7 can be squeezed with the second limiting part 5 and move to the upper part of the second limiting part 5; See Figure 5, after the convex structure 7 passes through the second limiting part 5, the convex structure 7 extends radially along the moving pipe 22 until it abuts against the upper surface of the second limiting part 5.

[0067] In this embodiment, a specific implementation manner of the convex structure 7 is provided. Refer to Figure 7 As shown, a groove 221 is provided on the wall surface of the moving pipe 22. The convex structure 7 includes a convex block 71 and an elastic member 72, where: the elastic member 72 can be a compression elastic member. The groove 221 is arranged radially along the moving pipe 22. The elastic member 72 is located in the groove 221 and is arranged radially along the moving pipe 22. The fixed end of the elastic member 72 is fixed to the groove 221, and the free end of the elastic member 72 is fixedly connected to the convex block 71. The convex block 71 can be pressed into the groove 221 when being squeezed by the second limiting part 5, and can be pushed by the elastic member 72 to a position protruding from the wall surface of the moving pipe 22 after being separated from the second limiting part 5.

[0068] For the convex structure 7 of this embodiment, when the convex block 71 does not pass through the second limiting part 5, the convex block 71 is exposed on the outer wall of the moving pipe 22 under the action of the elastic member 72 for limiting. When the convex block 71 passes through the second limiting part 5, the convex block 71 is pressed into the groove 221 by the second limiting part 5, and the moving pipe 22 can pass through the second limiting part 5.

[0069] In this embodiment, a specific implementation manner of the support driving assembly is also provided. The water outlet is arranged at the top of the water tank 4. The support driving assembly includes a driving device, a lead screw 83 and a guide rail 84, where: the driving device can be a motor 81, and waterproof treatment is performed on the motor 81, which can be arranged in the head of the water tank 4; the output shaft of the motor 81 is in transmission connection with the lead screw 83. Refer to Figure 8 As shown, the output shaft of the motor 81 is in meshing transmission with the end of the lead screw 83 through bevel gears. A slider 82 is fixed on the heat exchange coil 1. The slider 82 is in threaded connection with the lead screw 83. The guide rail 84 is slidably connected with the slider 82 and is used to limit the rotation of the slider 82. When the driving device rotates forward and backward, it can drive the heat exchange coil 1 to move up and down.

[0070] Among them, the matching structure of the slider 82 and the guide rail 84 also has a certain supporting effect on the heat exchange coil 1. The slider 82 has an internal threaded hole for the lead screw 83 to pass through, and the internal threaded hole is in threaded connection with the lead screw 83; when the motor 81 rotates, it drives the lead screw 83 to rotate. Since the lead screw 83 is in threaded connection with the slider 82, and at the same time the slider 82 extends into the guide rail 84 and the guide rail 84 limits the rotation of the slider 82, therefore, the slider 82 can reciprocate up and down along the lead screw 83, and at the same time drive the heat exchange coil 1 to move up and down.

[0071] When the water outlet is arranged on the side of the water tank 4, the structure of the above support driving assembly remains unchanged, and the lead screw 83 is arranged horizontally, and the driving device can drive the slider 82 to move left and right.

[0072] Example Two

[0073] See Figures 1-4 As shown, this embodiment provides a hot water tank, including a water tank 4 and the above heat exchange coil assembly. This hot water tank, having the above heat exchange coil assembly, can meet the user's demand for urgently obtaining hot water without changing the volume of the water tank 4 and the installation space, and can shorten the time for obtaining hot water.

[0074] Example Three

[0075] This embodiment provides a water heater, including the above hot water tank. This hot water tank, having the above hot water tank, can meet the user's demand for urgently obtaining hot water without changing the volume of the water tank 4 and the installation space, and can shorten the time for obtaining hot water.

[0076] Example Four

[0077] This embodiment provides a control method for the heat exchange coil assembly. Using the heat exchange coil assembly in the first embodiment above, when the water tank 4 urgently produces hot water, the heat exchange coil 1 is moved to the position of the water outlet of the water tank 4 and stays for heating; when the water tank 4 normally produces hot water, the heat exchange coil 1 is located on the side opposite to the water outlet in the water tank 4, or the heat exchange coil 1 swings back and forth in the water tank 4.

[0078] When the water outlet is at the top of the water tank 4 and the water tank 4 does not need to urgently produce hot water, the heat exchange coil 1 stays at the bottom of the water tank 4, facilitating the heat exchange coil 1 to heat the water in the entire water tank 4 and then flow out from the top water outlet; when the water tank 4 needs to urgently produce hot water, the support and drive assembly moves the heat exchange coil 1 upward to ensure that the heat exchange coil 1 can move to the position of the water outlet at the top of the water tank 4, and the user can obtain the water at the water outlet position that is heated first, meeting the user's demand for urgently using hot water.

[0079] When the water tank 4 normally produces hot water, the heat exchange coil 1 is located at the bottom of the water tank 4 to heat the water in the entire water tank 4 and then flow out through the top water outlet; or the heat exchange coil 1 swings back and forth in the water tank 4, which can stir the water in the water tank 4, improve the heat exchange efficiency between the heat exchange coil 1 and the water in the water tank 4, and shorten the heating time.

[0080] In the description of this specification, specific features, structures or characteristics can be combined in a suitable manner in any one or more embodiments or examples.

[0081] In the description of this specification, the description referring to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0082] As described above, the above is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention can easily think of changes or substitutions, and all should be covered by the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claimed rights.

Claims

1. A control method for a heat exchange coil assembly, characterized in that, The heat exchange coil assembly comprises a support drive assembly and a heat exchange coil (1) with a heat exchange medium flowing therein, wherein: the support drive assembly is in driving connection with the heat exchange coil (1), the heat exchange coil (1) is movably arranged in a water tank (4) under the drive of the support drive assembly, and the heat exchange coil (1) can move to the water outlet position of the water tank (4) and stay there for heating; The heat exchanger in the heat exchange coil is a fluid used to heat the water in the water tank; The heat exchange medium inlet of the heat exchange coil (1) is connected to an inlet pipeline (2), and the heat exchange medium outlet of the heat exchange coil (1) is connected to an outlet pipeline (3), wherein: The inlet pipeline (2) and the outlet pipeline (3) are arranged to be retractable when the heat exchange coil (1) moves so as to allow the heat exchange medium to flow in the heat exchange coil (1); The control method comprises: When the water tank (4) is used to produce hot water urgently, the heat exchange coil (1) is moved to the water outlet of the water tank (4) and remains there for heating; when the water tank (4) is used to produce hot water normally, the heat exchange coil (1) is located on the side of the water tank (4) opposite to the water outlet, or the heat exchange coil (1) is swung back and forth in the water tank (4).

2. The control method of the heat exchange coil assembly according to claim 1, characterized in that, The inlet pipeline (2) and the outlet pipeline (3) both include a movable pipe (22) and a fixed pipe (21) that are connected to each other, wherein: One of the movable tube (22) and the fixed tube (21) is an inner tube body, and the other is an outer tube body, and at least a portion of the inner tube body extends into the outer tube body; The movable tube (22) is connected to the heat exchange coil (1), and the heat exchange coil (1) can pull or push the movable tube (22) to move when moving, and adjust the length of the inner tube body in the outer tube body.

3. The control method of the heat exchange coil assembly according to claim 2, wherein, The inner wall or the outer wall of the fixed tube (21) is connected to a first limiting portion (6) and a second limiting portion (5), wherein: The first limiting portion (6) is located above the second limiting portion (5), and at least a portion of the movable tube (22) is located between the first limiting portion (6) and the second limiting portion (5); the first limiting portion (6) is used to abut against the end of the movable tube (22) away from the heat exchange coil (1); and the second limiting portion (5) is used to abut against the wall of the movable tube (22) to limit the displacement of the movable tube (22).

4. The control method of the heat exchange coil assembly according to claim 3, wherein A protruding structure (7) is provided on the wall surface of the movable tube (22), and the protruding structure (7) abuts against the wall surface of the fixed tube (21), so that the movable tube (22) stops moving and remains stable when the heat exchange coil (1) stops moving.

5. The control method of the heat exchange coil assembly according to claim 4, wherein More than two of the protruding structures (7) are arranged at intervals along the axial direction of the movable tube (22), and the protruding structures (7) can pass through the second limiting portion (5) and move with the heat exchange coil (1) when driven by the heat exchange coil (1).

6. The control method of the heat exchange coil assembly according to claim 5, wherein The protruding structure (7) is arranged telescopically along the radial direction of the moving tube (22).

7. The control method of the heat exchange coil assembly according to any one of claims 4-6, characterized in that, A groove (221) is provided on the wall surface of the moving pipe (22). The convex structure (7) includes a convex block (71) and an elastic member (72), where: The groove (221) is arranged along the radial direction of the moving pipe (22). The elastic member (72) is located in the groove (221), and the fixed end of the elastic member (72) is fixed to the groove (221). The free end of the elastic member (72) is fixedly connected to the convex block (71). The convex block (71) can be pressed into the groove (221) when being squeezed by the second limiting portion (5), and can be pushed by the elastic member (72) to a position protruding from the wall surface of the moving pipe (22) after being separated from the second limiting portion (5).

8. The control method of the heat exchange coil assembly according to claim 1, characterized in that, The support driving assembly includes a driving device, a lead screw (83) and a guide rail (84), where: The output shaft of the driving device is in transmission connection with the lead screw (83). A slider (82) is fixed on the heat exchange coil (1). The slider (82) is threadedly connected to the lead screw (83). The guide rail (84) is slidably connected to the slider (82) and is used to limit the rotation of the slider (82). When the driving device rotates forward and backward, it can drive the heat exchange coil (1) to move up and down.

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