Heat exchanger fan mounting bracket and heat pump unit

Abstract

The application belongs to the technical field of heat pump units, and particularly relates to a heat exchanger fan mounting bracket and a heat pump unit. The heat exchanger fan mounting bracket comprises: a cover shell, a wind channel is arranged in the cover shell, an air inlet and an air outlet of the wind channel are arranged at two ends of the cover shell, and one end of the cover shell provided with the air outlet is used for being connected with a heat exchanger; a support frame is integrally formed with the cover shell, and the support frame at least partially extends to the air outlet to form a mounting portion, and the mounting portion is used for supporting a motor of a fan, so that the installation step of the fan is simplified, and the installation difficulty of the fan is reduced.

Description

Technical Field

[0001] This application belongs to the technical field of heat pump units, specifically relating to a heat exchanger fan mounting bracket and a heat pump unit. Background Technology

[0002] The core components of a heat pump unit include the compressor, heat exchanger, expansion valve, and fan. Among these, the design and installation of the fan have a significant impact on the overall performance and efficiency of the unit.

[0003] In traditional heat pump units, the fan installation process involves first fixing the air guide ring to the heat pump unit's casing, then fixing the motor to a separate motor bracket, then fixing the motor bracket to the air guide ring, and finally installing the fan blades on the motor's output shaft. This makes the motor installation quite complex and requires many accessories. Utility Model Content

[0004] This application provides a heat exchanger fan mounting bracket and a heat pump unit to solve the problems of complex motor installation and numerous accessories required for existing fans.

[0005] In a first aspect, this application provides a heat exchanger fan mounting bracket, comprising:

[0006] The cover has an air duct inside, with the air inlet and air outlet of the air duct located at opposite ends of the cover. The end of the cover with the air outlet is used to connect to the heat exchanger.

[0007] A support frame is integrally formed with the housing, and the support frame extends at least partially to the air outlet to form a mounting portion, the mounting portion being used to support the motor of the fan.

[0008] In one possible design, the support frame includes at least two support columns, which are evenly arranged around the periphery of the mounting portion. One end of each support column is connected to the inner wall of the air duct, and the other end is connected to the mounting portion.

[0009] In one possible design, at least one of the at least two support columns is provided with a cable tray for placing the motor's wiring, and the housing is provided with a cable inlet that communicates with the cable tray at the end opposite to the mounting portion.

[0010] In one possible design, the mounting portion is provided with a first mounting groove for accommodating the motor at the end opposite to the air outlet;

[0011] The mounting part has a connecting hole in the middle that communicates with the first mounting slot. The connecting hole is used for the output shaft of the motor to pass through so that the output shaft of the motor passes through the connecting hole and connects with the fan blade. The wall of the wire feeding slot adjacent to the mounting part has a first channel that communicates with the wire feeding slot.

[0012] In one possible design, the mounting part is provided with a second mounting slot for placing the motor at the end adjacent to the air outlet, and the mounting part is provided with a second channel connecting the wire feeding slot and the second mounting slot.

[0013] In one possible design, at least one wire pressing assembly is provided inside the wire feeding groove, and there is a gap between the wire pressing assembly and the bottom of the wire feeding groove for the wire to pass through.

[0014] In one possible design, the pressing assembly includes a first pressing block and a second pressing block spaced apart along the extension direction of the wire feeding groove. The first pressing block and the second pressing block are respectively connected to two opposite groove walls of the wire feeding groove, and the width of the first pressing block and the second pressing block is smaller than the width of the wire feeding groove.

[0015] In one possible design, at least two of the support columns are provided with a wire feeding groove on one of them, and the remaining support columns are provided with grooves, with the opening sides of the wire feeding groove and the groove facing the air inlet.

[0016] In one possible design, the support column is arc-shaped, and the distance between the end of the support column connected to the mounting part and the air outlet is less than the distance between the end of the support column away from the mounting part and the air outlet.

[0017] Secondly, this application provides a heat pump unit, including a heat exchanger and a heat exchanger fan mounting bracket as described in any one of the first aspects. The heat exchanger is provided with connecting flanges on opposite sides of the air inlet side, and the cover of the heat exchanger fan mounting bracket is connected to the connecting flanges by screws.

[0018] The heat exchanger fan mounting bracket and heat pump unit provided in this application, by setting up a cover and a support frame, with an air duct inside the cover, and one end of the cover with the air outlet of the air duct is used to connect to the heat exchanger, the support frame is integrally formed with the cover, and the support frame extends at least partially to the air outlet to form a mounting part, the fan motor is fixed on the mounting part, and the fan blades are directly connected to the output shaft of the motor. Therefore, when installing the fan, only the motor needs to be fixed on the mounting part, and then the cover needs to be fixed on the heat exchanger, without the need to set up a separate motor bracket and air guide ring. Not only are there fewer parts, but there are also fewer operation steps, which greatly improves the convenience of fan installation. Attached Figure Description

[0019] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0020] Figure 1 A schematic diagram of the first embodiment of the heat exchanger fan mounting bracket provided in this application;

[0021] Figure 2 for Figure 1 Exploded view of the heat exchanger fan mounting bracket in the image;

[0022] Figure 3 for Figure 1 A schematic diagram of the structure of the cover in the heat exchanger fan mounting bracket;

[0023] Figure 4 for Figure 1 Another structural schematic diagram of the casing in the heat exchanger fan mounting bracket;

[0024] Figure 5 for Figure 4 A magnified schematic diagram of the structure within the circle;

[0025] Figure 6 A schematic diagram of a second embodiment of the heat exchanger fan mounting bracket provided in this application;

[0026] Figure 7 for Figure 6 Side view of the heat exchanger fan mounting bracket;

[0027] Figure 8 for Figure 6 Exploded view of the heat exchanger fan mounting bracket in the image;

[0028] Figure 9 for Figure 6 A schematic diagram of the structure of the cover in the heat exchanger fan mounting bracket;

[0029] Figure 10 for Figure 6 A structural schematic diagram of the casing in the heat exchanger fan mounting bracket from another perspective.

[0030] Figure label:

[0031] 10-Heat exchanger;

[0032] 11-Connect the flange;

[0033] 20 - Motor;

[0034] 30-fan blades;

[0035] 100-Enclosure;

[0036] 110-Air duct;

[0037] 200-Support frame;

[0038] 210 - Support column;

[0039] 211-Cable groove;

[0040] 212 - Inlet port;

[0041] 213 - Wire clamping assembly;

[0042] 2131 - First pressure block;

[0043] 2132 - Second pressure block;

[0044] 214 - First Channel;

[0045] 215 - Groove;

[0046] 216 - First mounting hole;

[0047] 220 - Installation Department;

[0048] 221 - First mounting slot;

[0049] 222 - Connection hole;

[0050] 223 - Second mounting slot;

[0051] 224 - Second Channel;

[0052] 225 - Second mounting hole.

[0053] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0054] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0055] A heat pump unit is a device that heats water from a low temperature to a high temperature by absorbing heat from the air through a heating system; it is an energy-saving device. Heat pump units are generally divided into split-type and integrated-type units in terms of structure. Compared with split-type units, integrated-type units have advantages such as smaller footprint, easier installation, and less packaging and environmental friendliness. However, this also results in an integrated air source heat pump water heater having a more compact structure than a split-type unit, making it more difficult to manufacture and install.

[0056] As described in the background section, the motor mounting method of the currently common integrated heat pump units is similar to that of the split heat pump units. Both use a separate motor bracket, on which the motor needs to be fixed. Then the motor bracket is fixed to the air guide ring, and finally the fan blades are installed on the motor shaft. The air guide ring needs to be fixed separately to the housing of the heat pump unit.

[0057] This necessitates the motor bracket being adapted to the air guide ring, making installation more complex. Furthermore, once installed, the motor is positioned between the heat exchanger and the fan. In this case, the motor bracket and the motor inevitably obstruct part of the heat exchanger's surface, reducing the effective heat exchange area and thus decreasing the heat exchanger's heat transfer capacity.

[0058] In response, this application provides a heat exchanger fan mounting bracket, which integrates the support frame and the housing. The motor is mounted on the support frame, while the housing is directly mounted on the heat exchanger. This effectively reduces the difficulty of motor installation and allows the position of the motor to be adjusted so that the fan blades are located between the motor and the heat exchanger, thus preventing the motor from affecting the heat exchanger's heat exchange.

[0059] The technical solutions of this application and how they solve the aforementioned technical problems are described in detail below with specific embodiments. These specific embodiments may exist independently or in combination with each other. Identical or similar concepts or processes may not be repeated in some embodiments. The embodiments of this application will now be described with reference to the accompanying drawings.

[0060] This application provides a heat exchanger fan mounting bracket, such as... Figure 1 and Figure 3 As shown, it includes a housing 100 and a support frame 200.

[0061] An air duct 110 is provided inside the housing 100. The air inlet and air outlet of the air duct 110 are respectively located at both ends of the housing 100, and the air duct 110 runs along... Figure 1 Extending in the direction of the arrow, the end of the cover 100 with the air outlet is used to connect with the heat exchanger 10. That is, the cover 100 covers the air inlet side of the heat exchanger 10 and connects the air outlet with the air inlet side of the heat exchanger 10, so that the gas leaving from the air outlet of the air duct 110 can directly enter the heat exchanger 10 from the air inlet side of the heat exchanger 10 for heat exchange.

[0062] The shape and size of the air outlet of the air duct 110 are usually adapted to the shape and size of the air inlet side of the heat exchanger 10 so that the gas coming out of the air outlet can enter the heat exchanger 10 evenly and improve the heat exchange effect.

[0063] The support frame 200 is integrally formed with the housing 100, and the support frame 200 extends at least partially to the air outlet to form a mounting part 220, which is used to support the motor 20 of the fan. The support frame 200 and the housing 100 can be made of metal or injection molded. Of course, injection molding is a more convenient and less expensive process.

[0064] When in use, the fan motor 20 is fixed on the mounting part 220, and the fan blades 30 are directly connected to the output shaft of the motor 20. Therefore, when installing the fan, it is only necessary to fix the motor 20 on the mounting part 220 and then fix the cover 100 on the heat exchanger 10. There is no need to set up a separate motor bracket and air guide ring. Not only are there fewer parts, but there are also fewer operation steps, which greatly improves the convenience of fan installation.

[0065] In some embodiments, the support frame 200 includes at least two support columns 210, which are evenly arranged around the periphery of the mounting portion 220. One end of the support column 210 is connected to the inner wall of the air duct 110, and the other end is connected to the mounting portion 220.

[0066] Specifically, the mounting part 220 can be cylindrical or other structures. It is mainly used to contact the motor 20 and support the motor 20. The support column 210 connects the cover 100 and the mounting part 220 to effectively support the mounting part 220. The number of support columns 210 can be determined according to the actual situation. For example, when the air duct 110 is large, the number of support columns 210 can be increased to improve the support effect.

[0067] For example, the support column 210 can be set to three, and the three support columns 210 are evenly arranged around the mounting part 220 to provide stable support for the support part.

[0068] Furthermore, at least one of the two support columns 210 is provided with a wire feeding groove 211, which is used to place the wiring connected to the motor 20, such as wires, etc. The cover 100 is provided with a wire inlet 212 that communicates with the end of the wire feeding groove 211 away from the mounting part 220.

[0069] After the motor 20 is fixed on the mounting part 220, the wiring connected to the motor 20, such as wires, can be fixed in the wiring trough 211 and led out of the cover 100 through the inlet 212. At this time, the wiring can be organized, which can not only prevent the wiring from being scattered in the air duct 110, but also prevent the wiring from shaking due to the wind force during the operation of the fan, thus preventing additional noise.

[0070] Regarding how the wiring of motor 20 enters the wire feeding trough 211, at least the following two methods are included:

[0071] The first type, such as Figure 2 and Figure 3 As shown, the mounting part 220 is provided with a first mounting groove 221 for accommodating the motor 20 at the end opposite to the air outlet. The motor 20 is placed in the first mounting groove 221. At this time, the motor 20 can be connected to the mounting part 220 or the support column 210 by a screw connector. For example, a first mounting hole 216 can be provided at the end of the support column 210 that is connected to the mounting part 220. A corresponding mounting hole is provided on the motor 20. Then, by passing a screw through the first mounting hole 216 and the corresponding mounting hole, the motor 20 can be locked and fixed in the first mounting groove 221.

[0072] The mounting part 220 has a connecting hole 222 in the middle that communicates with the first mounting groove 221. The connecting hole 222 is used for the output shaft of the motor 20 to pass through, so that the output shaft of the motor 20 passes through the connecting hole 222 and connects with the fan blade 30. The support column 210 is located on the outlet side of the first mounting groove 221. The motor 20 can extend from the opening side of the first mounting groove 221 to the outside of the first mounting groove 221, or the line can extend out of the first mounting groove 221 from the opening side of the first mounting groove 221. The wall of the wire feeding groove 211 adjacent to the mounting part 220 is provided with a first channel 214 that communicates with the wire feeding groove 211. The first channel 214 can be a through groove or through hole provided on the wall of the wire feeding groove 211, as long as the line can enter the wire feeding groove 211 through the first channel 214.

[0073] Specifically, such as Figure 2 As shown, the motor 20 is located at the end of the housing 100 away from the air outlet. The opening side of the first mounting groove 221 faces the air inlet. The main body of the motor 20 is fixed in the first mounting groove 221, and the output shaft of the motor 20 extends through the connecting hole 222 to the side of the mounting part 220 away from the air inlet. The fan blade 30 is connected to the output shaft and is driven to rotate by the output shaft. This makes the motor 20 no longer located between the heat exchanger 10 and the fan blade 30, which can prevent the motor 20 from blocking the heat exchanger 10 and thus prevent the motor 20 from affecting the heat exchange effect of the heat exchanger 10.

[0074] The second type, such as Figure 6 , Figure 7 , Figure 8 , Figure 9 and Figure 10As shown, the mounting part 220 is provided with a second mounting groove 223 for placing the motor 20 at one end adjacent to the air outlet. At this time, the support column 210 is located on the side of the mounting part 220 facing the air inlet. The mounting part 220 is provided with a second channel 224 connecting the wire laying groove 211 and the second mounting groove 223. The second channel 224 can be a through groove or through hole provided on the groove wall of the second mounting groove 223, as long as the wire can be extended from the second mounting groove 223 to the wire laying groove 211 through the second channel 224.

[0075] During assembly, the motor 20 is placed in the second mounting slot 223, and a second mounting hole 225 can be provided on the mounting part 220. A corresponding mounting hole is provided on the motor 20. After the screw passes through the second mounting hole 225 and the mounting hole, the motor 20 is fixed in the second mounting slot 223, thus fixing the motor 20. At this time, the motor 20 is on the side of the mounting part 220 facing the air outlet, and the fan blade 30 is directly connected to the output shaft of the motor 20. The motor 20 is not located between the fan blade 30 and the heat exchanger 10, which can avoid the motor 20 affecting the heat dissipation performance of the heat exchanger 10.

[0076] In some embodiments, see Figure 4 and Figure 5 As shown, at least one wire pressing assembly 213 is provided in the wire feeding groove 211, and there is a gap between the wire pressing assembly 213 and the bottom of the wire feeding groove 211 for the wire to pass through.

[0077] When in use, the wire is placed in the wire release groove 211 and the wire is passed through the gap at the corresponding position of the wire pressing assembly 213. This prevents the wire from coming out of the wire release groove 211 and effectively fixes the wire.

[0078] For further details, please see Figure 5 As shown, the wire pressing assembly 213 includes a first wire pressing block 2131 and a second wire pressing block 2132 spaced apart along the extension direction of the wire feeding groove 211. The first wire pressing block 2131 and the second wire pressing block 2132 are respectively connected to two opposite groove walls of the wire feeding groove 211, and the width of the first wire pressing block 2131 and the second wire pressing block 2132 is smaller than the width of the wire feeding groove 211.

[0079] The first pressing block 2131 and the second pressing block 2132 are arranged in a front-to-back relationship along the length of the support column 210. For example, the first pressing block 2131 is fixed on the left side wall of the wire feeding groove 211 and is located at the upper end of the left side wall. There are gaps between the first pressing block 2131 and the right side wall and bottom of the wire feeding groove 211. The second pressing block 2132 is fixed on the right side wall and also has gaps between the second pressing block 2132 and the left side wall and bottom of the wire feeding groove 211. This makes it easy to press the wire under the first pressing block 2131 and the second pressing block 2132 and restrict the position of the wire.

[0080] It should be noted that the wire pressing assembly 213 may include a plurality of first wire pressing blocks 2131 and a plurality of second wire pressing blocks 2132, which are arranged sequentially at intervals along the extension direction of the support column 210.

[0081] Alternatively, the pressing assembly 213 can be an arc-shaped top cover directly formed on the opening side of the wire feeding groove 211, covering only a small section of the wire feeding groove 211. Of course, the pressing assembly 213 can also be other structures, which can be integrally formed with the support frame 200 or separately set. This embodiment does not limit it here.

[0082] In some embodiments, at least two support columns 210 are provided with a wire feeding groove 211 on one of them and a groove 215 on the remaining support column 210. The opening sides of the wire feeding groove 211 and the groove 215 are both facing the air inlet.

[0083] Adding the groove 215 does not affect the support effect of the support column 210 on the motor 20, and it can also reduce the material used in the support column 210 to reduce the cost of the support column 210. The opening sides of the groove 215 and the directional groove are both facing the air inlet. On the one hand, the wires will not be blown out due to the operation of the fan. On the other hand, the wires can be kept close to the bottom of the wire release groove 211. On the other hand, it can also make the airflow smooth and reduce noise.

[0084] Furthermore, in order to improve the strength of the support column 210, the support column 210 can be set to an arc shape, that is, in the extension direction of the air duct 110, it forms a shape similar to an arch bridge and protrudes towards the air inlet.

[0085] For example, the distance between the end of the support column 210 connected to the mounting part 220 and the air outlet can be less than the distance between the end of the support column 210 away from the mounting part 220 and the air outlet.

[0086] This application embodiment also provides a heat pump unit, including a heat exchanger 10 and the heat exchanger fan mounting bracket in the above embodiment. The heat exchanger 10 is provided with connecting flanges 11 on two opposite sides on the air inlet side, and the cover 100 is connected to the connecting flanges 11 by screws.

[0087] Specifically, please see Figure 7 As shown, the side of the heat exchanger 10 facing the housing 100 is the air inlet side of the heat exchanger 10. On any two opposite sides of this side of the heat exchanger 10, a connecting flange 11 extending toward the housing 100 is provided, and a hole is made on the connecting flange 11. The edge of the housing 100 covers the outside of the connecting flange 11, and can of course be engaged with the inside of the connecting flange 11. The edge of the housing 100 has holes corresponding to the holes on the connecting flange 11. Then, the housing 100 and the connecting flange 11 are fixed by screws passing through the corresponding holes.

[0088] It should be noted that, in order to facilitate adjustment and accommodate processing errors, a waist-shaped hole can be provided on the cover 100, so that the position of the cover 100 can be adjusted accordingly.

[0089] In addition, the heat pump unit also includes conventional components such as a compressor, expansion valve, and housing. Their arrangement and working principle are well known to those skilled in the art, and will not be described in detail here. The technical solutions of this application have been described above with reference to the preferred embodiments shown in the accompanying drawings. However, it is readily understood by those skilled in the art that the scope of protection of this application is obviously not limited to these specific embodiments. The above embodiments are only used to illustrate the technical solutions of this application, and not to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A heat exchanger fan mounting bracket, characterized in that, include: A cover (100) is provided inside the cover (100) and an air duct (110) is provided at both ends of the cover (100). The end of the cover (100) with the air outlet is used to connect to the heat exchanger (10). A support frame (200) is integrally formed with the cover (100), and the support frame (200) extends at least partially to the air outlet to form a mounting part (220), the mounting part (220) being used to support the motor (20) of the fan.

2. The heat exchanger fan mounting bracket according to claim 1, characterized in that, The support frame (200) includes at least two support columns (210), which are evenly arranged around the periphery of the mounting part (220). One end of the support column (210) is connected to the inner wall of the air duct (110), and the other end is connected to the mounting part (220).

3. The heat exchanger fan mounting bracket according to claim 2, characterized in that, At least one of the at least two support columns (210) is provided with a wire-laying groove (211) for placing the wiring of the motor (20), and the cover (100) is provided with a wire inlet (212) that communicates with the end of the wire-laying groove (211) away from the mounting part (220).

4. The heat exchanger fan mounting bracket according to claim 3, characterized in that, The mounting part (220) is provided with a first mounting groove (221) for accommodating the motor (20) at the end opposite to the air outlet; The mounting part (220) is provided with a connecting hole (222) communicating with the first mounting groove (221) in the middle. The connecting hole (222) is used for the output shaft of the motor (20) to pass through, so that the output shaft of the motor (20) passes through the connecting hole (222) and connects with the fan blade (30). The wire feeding groove (211) is provided with a first channel (214) communicating with the wire feeding groove (211) on the groove wall at the end adjacent to the mounting part (220).

5. The heat exchanger fan mounting bracket according to claim 3, characterized in that, The mounting part (220) is provided with a second mounting groove (223) for placing the motor (20) at one end adjacent to the air outlet. The mounting part (220) is provided with a second channel (224) connecting the wire feeding groove (211) and the second mounting groove (223).

6. The heat exchanger fan mounting bracket according to claim 3, characterized in that, At least one wire pressing assembly (213) is provided in the wire feeding groove (211), and there is a gap between the wire pressing assembly (213) and the bottom of the wire feeding groove (211) for the wire to pass through.

7. The heat exchanger fan mounting bracket according to claim 6, characterized in that, The wire pressing assembly (213) includes a first wire pressing block (2131) and a second wire pressing block (2132) spaced apart along the extension direction of the wire feeding groove (211). The first wire pressing block (2131) and the second wire pressing block (2132) are respectively connected to two opposite groove walls of the wire feeding groove (211), and the width of the first wire pressing block (2131) and the second wire pressing block (2132) is smaller than the width of the wire feeding groove (211).

8. The heat exchanger fan mounting bracket according to claim 3, characterized in that, Of the at least two support columns (210), one is provided with the wire feeding groove (211), and the remaining support columns (210) are provided with grooves (215). The opening sides of the wire feeding groove (211) and the grooves (215) are both facing the air inlet.

9. The heat exchanger fan mounting bracket according to any one of claims 2-8, characterized in that, The support column (210) is arc-shaped. The distance between the end of the support column (210) connected to the mounting part (220) and the air outlet is less than the distance between the end of the support column (210) away from the mounting part (220) and the air outlet.

10. A heat pump unit, characterized in that, The device includes a heat exchanger (10) and a heat exchanger fan mounting bracket according to any one of claims 1-9. The heat exchanger (10) is provided with connecting flanges (11) on opposite sides of the air inlet side. The cover (100) of the heat exchanger fan mounting bracket is connected to the connecting flanges (11) by screws.

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