Pipe fixing structure and air source heat pump water heater
By using a multi-support structure to fix the pipeline in the air source heat pump water heater, the problem of pipeline tearing during transportation is solved, the stability and vibration resistance of the pipeline are improved, and the user experience and maintenance efficiency are enhanced.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SICHUAN CHANGHONG AIR CONDITIONER CO LTD
- Filing Date
- 2025-07-08
- Publication Date
- 2026-06-26
Smart Images

Figure CN224415393U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of air conditioner technology, and in particular to a pipe fixing structure and an air source heat pump water heater. Background Technology
[0002] Air source heat pump water heaters are energy-saving and environmentally friendly hot water supply devices that can replace boilers and are not limited by resources. They use green, pollution-free refrigerant to absorb heat from the air, and through the work of a compressor, produce domestic hot water above 50 degrees Celsius. They are suitable for indoor swimming pools, hotels, villas, hair salons, bathhouses, factories, schools, farms, and other places requiring hot water supply. However, the piping of low-temperature air source heat pump water heaters is complex. Current technologies rely on bending the pipes to change their angle and increase their flexibility to reduce vibration. But when subjected to strong transport forces, the welded parts and weak points of the bends are easily torn, leading to refrigerant leakage. Utility Model Content
[0003] In view of the shortcomings of the existing technology, this utility model provides a pipe fixing structure and an air source heat pump water heater, which solves the technical problem of easy tearing of the pipes of the air source water heater unit in the existing technology.
[0004] According to the embodiments of this utility model, the following technical solution is adopted:
[0005] A pipe fixing structure is applied to an air source heat pump water heater, the air source heat pump water heater including an independently installed exhaust pipe, an air supply pipe and a connecting pipe with different directions, the fixing structure including:
[0006] The base has two mounting points;
[0007] A first bracket, located at one of the two mounting points, has a first fixing port for fixing the exhaust pipe; and / or
[0008] The second bracket is suspended above the base and located between the two mounting points. The second bracket has a second fixing port for fixing the air supply pipe.
[0009] and / or
[0010] A third bracket is provided at the other of the two mounting points and has a third fixing port for fixing the connecting pipe.
[0011] Preferably, the first bracket includes a fixing clip and a support base stacked sequentially, the support base being disposed at one of the mounting points, the first fixing port being disposed at the fixing clip, and the fixing clip being shaped like a "Z".
[0012] Preferably, the support base is shaped like a "Z", with its top end closing the opening end of the first fixing port and its bottom end located on the base.
[0013] Preferably, the second support includes:
[0014] The mounting part includes two oppositely arranged clamps, which enclose an annular mounting opening for fitting onto the compressor.
[0015] An extension arm extends horizontally outward from the mounting portion;
[0016] A fixing part is provided at the end of the extension arm, and a second fixing port is provided on the extension arm for fixing the air supply pipe, and the second fixing port is parallel to the axis of the mounting port.
[0017] Preferably, the compressor has an annular base plate welded to its circumference, and the annular base plate has limiting arms at both its upper and lower ends. The limiting arms extend away from the annular base plate to form a limiting groove with the annular base plate, and the mounting part of the second bracket is engaged in the limiting groove.
[0018] Preferably, the extension arm is provided with a plurality of reinforcing arms perpendicular to it.
[0019] Preferably, the third support includes:
[0020] The support surface is fixed to another mounting point of the base;
[0021] A support arm extends vertically upward from the support surface for fixing the plate heat exchanger;
[0022] The mounting arm extends horizontally from the top of the support arm and is provided with a fixing plate, and the extension direction of the mounting arm is consistent with the interface direction of the plate heat exchanger.
[0023] The third fixing port is provided on the fixing plate and is used to fix the connecting pipe.
[0024] Preferably, the fixing plate is provided with at least one pipe clamp or clamp to form the third fixing port for clamping the connecting pipe.
[0025] Preferably, the mounting arm's fixing plate is provided with a cushioning pad.
[0026] This utility model also provides an air source heat pump water heater, including the aforementioned pipe fixing structure.
[0027] Compared with the prior art, this utility model has the following advantages: by setting different support structures for fixing and constraining through pipeline routing and structural type, the risk of tearing at weak points of the pipeline is effectively protected. Attached Figure Description
[0028] Figure 1 This is a schematic diagram of the pipe fixing structure installed on the base in one embodiment of the present invention;
[0029] Figure 2 This is a schematic diagram of the second bracket installed on the compressor in one embodiment of the present invention;
[0030] Figure 3 This is an exploded view of the second support in one embodiment of the present invention;
[0031] Figure 4 This is a schematic diagram of the structure of the third support in one embodiment of the present invention.
[0032] In the above attached figures: 1. Base; 2. Exhaust pipe; 3. Air supply pipe; 4. Connecting pipe; 5. First bracket; 6. First fixing port; 61. Fixing clip; 62. Support base; 7. Second bracket; 71. Mounting part; 72. Extension arm; 73. Fixing part; 74. Mounting port; 8. Second fixing port; 9. Third bracket; 91. Support surface; 92. Support arm; 93. Mounting arm; 94. Fixing plate; 95. Pipe clamp; 10. Third fixing port; 11. Compressor; 12. Annular base plate; 13. Limiting arm; 14. Reinforcing arm; 15. Limiting groove; 16. Plate heat exchanger. Detailed Implementation
[0033] To make the objectives, technical solutions, and beneficial effects of this utility model clearer, the technical solutions of this utility model are further described below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of this utility model and are not intended to limit it.
[0034] See Figures 1 to 4 This utility model provides a pipe fixing structure applied to an air source heat pump water heater. The air source heat pump water heater includes an independently installed exhaust pipe 2, an air supply pipe 3, and a connecting pipe 4 with different directions. The fixing structure includes:
[0035] Base 1 has two mounting points;
[0036] The first bracket 5 is located at one of the two mounting points and has a first fixing port 6 for fixing the exhaust pipe 2.
[0037] The second bracket 7 is suspended above the base 1 and located between the two mounting points. The second bracket 7 has a second fixing port 8 for fixing the air supply pipe 3.
[0038] The third bracket 9 is located at the other of the two mounting points and has a third fixing port 10 for fixing the connecting pipe 4.
[0039] In this embodiment, the internal space of the air source heat pump water heater is limited, and the pipelines have different routing directions. By setting multiple brackets at different positions, various complex layouts can be flexibly adapted, improving the space utilization rate. Specifically, two mounting points are provided on the base 1. The first bracket 5 is provided at one of the mounting points and has a first fixing port 6 for fixing the exhaust pipe 2. The second bracket 7 is provided on the compressor 11 and is suspended above the base 1 and has a second fixing port 8 for fixing the air supply pipe 3. The third bracket 9 is provided at the other mounting point and has a third fixing port 10 for fixing the connecting pipe 4. Since the exhaust pipe 2, the air supply pipe 3, and the connecting pipe 4 each have an independent fixing bracket (the first, second, and third brackets 9), the displacement or loosening of the pipelines due to transportation vibration can be effectively prevented. A reasonable fixing structure can effectively absorb and isolate the vibration generated during the operation of the compressor 11, thereby reducing the overall machine noise and improving the user experience. Moreover, each pipeline has an independent fixing point, making it easier to identify and operate during later maintenance or component replacement, improving the maintenance efficiency.
[0040] The first bracket 5 includes a fixing clamp 61 and a support seat 62 which are stacked in sequence. The support seat 62 is provided at one of the mounting points, the first fixing port 6 is provided on the fixing clamp 61, and the fixing clamp 61 is in a "C" shape.
[0041] In this embodiment, the support seat 62 is provided at one mounting point of the base 1, the fixing clamp 61 is installed on the support seat 62, and the first fixing port 6 is provided on the fixing clamp 61 for fixing the exhaust pipe 2. The fixing clamp 61 is in a "C" shape, which helps to wrap and fix the exhaust pipe 2, enhancing the stability.
[0042] The support seat 62 is in a "C" shape, its top end closes the opening end of the first fixing port 6, and its bottom end is provided on the base 1.
[0043] In this embodiment, the support seat 62 is in a "C" shape, which not only provides structural strength and stability but also can effectively wrap and protect the exhaust pipe 2. The top end of the support seat 62 closes the opening end of the first fixing port 6, and the top of the support seat 62 will cover the opening part of the fixing clamp 61 to form a complete closed loop to clamp the exhaust pipe 2. Rubber pads can be provided on the top of the support seat 62 and the inner wall of the fixing clamp 61 for flexible support of the exhaust pipe 2.
[0044] The second bracket 7 includes:
[0045] A mounting part 71, including two oppositely arranged clamps, and the two clamps enclose an annular mounting port 74 for sleeving on the compressor 11;
[0046] An extension arm 72 extending horizontally outward from the mounting part 71;
[0047] A fixing part 73 is provided at the end of the extension arm 72, and a second fixing port 8 is provided on the extension arm 72 for fixing the air supply pipe 3, and the second fixing port 8 is parallel to the axis of the mounting port 74.
[0048] In this embodiment, the second bracket 7 includes an installation part 71 composed of two clamps, which enclose an annular installation opening 74. The second bracket 7 is fitted onto the compressor 11 to achieve the connection between the bracket and the compressor 11. An extension arm 72 extends horizontally outward from the installation part 71. To support and transmit loads, a fixing part 73 is provided at the end of the extension arm 72. The fixing part 73 has a second fixing opening 8 for clamping the air supply pipe 3. The second fixing opening 8 is located at the end of the extension arm 72, and its axial direction is parallel to the axis of the installation opening 74, so as to achieve the suspension and fixation of the air supply pipe 3. This can effectively avoid interference from other components and improve the overall assembly flexibility. The air supply pipe 3 is usually slender and prone to vibration. Using a bracket with an extension arm 72 can provide remote support. By connecting to the compressor 11 through clamps, the fixing point of the air supply pipe 3 and the compressor 11 move synchronously, reducing stress concentration caused by vibration difference, improving the vibration resistance of the pipeline system, and preventing fatigue fracture or leakage.
[0049] The compressor 11 has an annular base plate 12 welded to its circumference. The annular base plate 12 has a limiting arm 13 at both the upper and lower ends. The limiting arm 13 extends away from the annular base plate 12 and is used to form a limiting groove 15 with the annular base plate 12. The mounting part 71 of the second bracket 7 is engaged in the limiting groove 15.
[0050] In this embodiment, the annular base plate 12 is welded to the circumferential surface of the compressor 11, and two limiting arms 13 are provided at the upper and lower ends of the annular base plate 12 and extend away from the annular base plate 12. The upper and lower limiting arms 13 and the annular base plate 12 together form a limiting groove 15, which is used to accommodate and fix the mounting part 71 of the second bracket 7. This can effectively limit the position of the second bracket 7 and prevent it from moving axially or radially.
[0051] The extension arm 72 is provided with several reinforcing arms 14 perpendicular to it.
[0052] In this embodiment, two reinforcing arms 14 are disposed on and perpendicular to the extension arm 72. The reinforcing arms 14 are located at opposite ends of the extension arm 72. The reinforcing arms 14 increase the cross-sectional dimensions and structural complexity of the extension arm 72, thereby enhancing its mechanical strength. The reinforcing arms 14 significantly improve the bending resistance of the extension arm 72, making it more stable when subjected to pressure from the air supply pipe 3. This helps reduce the risk of deformation caused by long-term stress on the extension arm 72, ensuring that the air supply pipe 3 is always in the correct position.
[0053] The third support 9 includes:
[0054] The support surface 91 is fixed to another mounting point of the base 1;
[0055] Support arm 92 extends vertically upward from the support surface 91 and is used to fix the plate 94 type heat exchanger;
[0056] Mounting arm 93 extends horizontally from the top of the support arm 92 and is provided with a fixing plate 94, and the extension direction of the mounting arm 93 is consistent with the interface direction of the plate heat exchanger 16.
[0057] The third fixing port 10 is provided on the fixing plate 94 and is used to fix the connecting pipe 4.
[0058] In this embodiment, the support surface 91 is fixed to another mounting point on the base 1, serving as the foundation of the entire third bracket 9. The support arm 92 extends vertically upward from the support surface 91 to fix the plate 94 heat exchanger and provide positioning in the height direction. The mounting arm 93...
[0059] Extending horizontally from the top of the support arm 92, a fixing plate 94 is provided. The fixing plate 94 has two third fixing ports 10. One third fixing port 10 is used to fix the connecting pipe 4 connected to the evaporator, and the other third fixing port 10 is used to fix the connecting pipe 4 connected to the condenser. Simultaneously, the extension direction of the mounting arm 93 is consistent with the interface direction of the plate heat exchanger 16, which not only facilitates the layout and fixing of the connecting pipe 4, making the pipeline route more reasonable and reducing stress, but also allows the connecting pipe 4 to connect to the plate heat exchanger 16 via the shortest path. Placing the third fixing ports 10 on the fixing plate 94 of the mounting arm 93 ensures that the third fixing ports 10 can be precisely aligned with the connecting pipe. The position of the connecting pipe 4 avoids problems such as vibration and fatigue fracture caused by the connection pipe 4 being suspended or unevenly stressed. It is especially suitable for air source heat pump water heaters with frequent start-stop and large pressure fluctuations. The support arm 92 also undertakes the function of fixing the plate heat exchanger 16, and the extension direction of the mounting arm 93 is consistent with the direction of the heat exchanger interface, making the layout of the connecting pipe 4 smoother, reducing bending and stress concentration, and enhancing the matching and synergy with the plate heat exchanger 16. The combined structure of the vertical support arm 92 and the horizontal mounting arm 93 has good load-bearing capacity and bending resistance, and can effectively absorb the mechanical vibration generated during operation, preventing the connecting pipe 4 from loosening or falling off.
[0060] The fixing plate 94 is provided with at least one pipe clamp 95 or a clamp to form the third fixing port 10 for clamping the connecting pipe 4.
[0061] In this embodiment, two pipe clamps 95 are provided on the fixing plate 94. The two pipe clamps 95 respectively clamp the corresponding connecting pipe 4. The pipe clamps 95 and the fixing plate 94 together form the third fixing port 10. The pipe clamps 95 have good clamping force and anti-slip performance; they can effectively prevent the connecting pipe 4 from loosening or even falling off due to thermal expansion, compressor 11 vibration or fluid impact.
[0062] The mounting plate 94 of the mounting arm 93 is provided with a buffer pad.
[0063] In this embodiment, a buffer pad (not shown) is provided on the fixing plate 94, located between the pipe clamp 95 and the connecting pipe 4. The buffer pad can be made of materials with certain elasticity and wear resistance, such as rubber and silicone. Its main function is to provide a buffer function and prevent wear caused by direct metal contact.
[0064] This embodiment also provides an air source heat pump water heater including the fixed structure of the pipeline described above. The specific structure of the air source heat pump water heater is the same as that in the above embodiment. Since this air source heat pump water heater adopts all the technical solutions of the above embodiment, it has at least all the beneficial effects brought about by the technical solutions of the above embodiment, which will not be described in detail here.
[0065] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.
Claims
1. A pipe fixing structure applied to an air source heat pump water heater, the air source heat pump water heater comprising an exhaust pipe, a makeup air pipe and a connecting pipe which are independently arranged and have different orientations, characterized in that, The fixing structure includes: The base has two mounting points; A first bracket is provided at one of the two mounting points and has a first fixing port for fixing the exhaust pipe; and / or The second bracket is suspended above the base and located between the two mounting points. The second bracket has a second fixing port for fixing the air supply pipe. and / or A third bracket is provided at the other of the two mounting points and has a third fixing port for fixing the connecting pipe.
2. The pipe fixing structure according to claim 1, wherein The first bracket includes a fixing clip and a support base arranged in sequence. The support base is located at one of the mounting points. The first fixing port is located at the fixing clip, and the fixing clip is in the shape of a "Z".
3. The pipe fixing structure according to claim 2, wherein The support base is shaped like a "Z", with its top end closing the opening of the first fixing port and its bottom end located on the base.
4. The pipe fixing structure according to claim 2, characterized in that, The second support includes: The mounting part includes two oppositely arranged clamps, which enclose an annular mounting opening for fitting onto the compressor. An extension arm extends horizontally outward from the mounting portion; A fixing part is provided at the end of the extension arm, and a second fixing port is provided on the extension arm for fixing the air supply pipe, and the second fixing port is parallel to the axis of the mounting port.
5. The pipe fixing structure according to claim 4, characterized in that, The compressor has an annular base plate welded to its circumference. The upper and lower ends of the annular base plate are provided with limiting arms. The limiting arms extend away from the annular base plate to form a limiting groove with the annular base plate. The mounting part of the second bracket is engaged in the limiting groove.
6. A pipe fixing structure according to claim 4 or 5, characterized in that, The extension arm is provided with several reinforcing arms perpendicular to it.
7. The pipe fixing structure according to claim 1, characterized in that, The third support includes: The support surface is fixed to another mounting point of the base; A support arm extends vertically upward from the support surface for fixing the plate heat exchanger; The mounting arm extends horizontally from the top of the support arm and is provided with a fixing plate, and the extension direction of the mounting arm is consistent with the interface direction of the plate heat exchanger. The third fixing port is provided on the fixing plate and is used to fix the connecting pipe.
8. The pipe fixing structure according to claim 7, characterized in that, The fixing plate is provided with at least one pipe clamp or clamp to form the third fixing port for clamping the connecting pipe.
9. A pipe fixing structure according to claim 7 or 8, characterized in that, The mounting arm's fixing plate is equipped with a cushioning pad.
10. An air source heat pump water heater, characterized in that, Includes the pipe fixing structure according to any one of claims 1-9.