A heating assembly of a clothes dryer with double motor mounting positions

Abstract

The utility model discloses a heating assembly of clothes dryer with double motor installation position, including main casing, the main casing includes bottom seat, the top surface of bottom seat's front side forms the front baffle part of extending upwards, the top surface of bottom seat's middle part forms the middle baffle part of extending upwards, the top surface of bottom seat's right side forms the right baffle part, the rear portion between the rear portion of right baffle part and middle baffle part forms rear baffle part, the bottom of rear baffle part forms on the top surface of bottom seat, the middle part of rear baffle part forms fan installation through -hole, it can satisfy the installation of air -guiding ventilator and drum drive motor, satisfy the design need, and its external water receiving groove is at the outside of main heat exchange cavity, so that its upper portion can conveniently install water pump, and the water inlet pipe of water pump is conveniently inserted into external water receiving groove, to realize drainage.

Description

Technical Field

[0001] This utility model relates to the technical field of dryer processing equipment, and more specifically to a heating element for a dryer with dual motor mounting positions. Background Technology

[0002] A clothes dryer is a household cleaning appliance that uses electric heating to instantly evaporate and dry the moisture in washed clothes.

[0003] However, existing electric heating dryers have high energy consumption and high cost, so many dryers now use heat pump dryers. Existing heat pump dryers typically have heat exchange modules consisting of a compressor, evaporator, condenser, and expansion valve, all fixed to the base plate of the casing. They usually include a mounting point for a motor to drive the rotating drum. An impeller is also mounted on the motor's output shaft to direct airflow from the drum into the heat exchange chamber of the module, where it exchanges heat with the evaporator and condenser before being discharged. Since a single motor powers both the drum and impeller rotation, the airflow and drum cannot be controlled independently. Therefore, a separate airflow fan and a motor-driven drum are needed to meet the requirement of independent control. However, current heat exchange module bases lack suitable mounting structures for both the motor and the airflow fan, failing to meet this requirement. Meanwhile, a water collection tank is fixed below the evaporator to collect condensate. The separate installation of the water collection tank is complex and difficult to manufacture. Moreover, since the water collection tank is located below the evaporator, the water pump's inlet pipe is blocked by the evaporator, making installation difficult. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a heating element for a clothes dryer with dual motor mounting positions. It can accommodate the installation of a ventilator and a drum drive motor, meeting design requirements. Furthermore, its external water receiving groove is located outside the main heat exchange chamber, allowing for easy installation of a water pump on its upper part. The water inlet pipe of the water pump can then extend into the external water receiving groove to facilitate drainage.

[0005] The solution of this utility model to the aforementioned technical problem is: A heating element for a clothes dryer with dual motor mounting positions includes a main housing. The main housing includes a bottom base. An upwardly extending front baffle portion is formed on the front side of the top surface of the bottom base. An upwardly extending middle baffle portion is formed in the middle of the top surface of the bottom base. A right baffle portion is formed on the right side of the top surface of the bottom base. A rear baffle portion is formed between the rear portion of the right baffle portion and the rear portion of the middle baffle portion. The bottom of the rear baffle portion is formed on the top surface of the bottom base. A fan mounting through hole is formed in the middle of the rear baffle portion. A main heat exchange cavity is formed between the top surfaces of the front baffle, the middle baffle, the right baffle, the rear baffle, and the bottom seat. A main air inlet is formed on the part of the front baffle facing the main heat exchange cavity. The top surface of the main heat exchange cavity is covered with an upper cover plate. The edge of the upper cover plate is fixedly connected to the top surfaces of the front baffle, the middle baffle, and the right baffle by bolts. An evaporator and a condenser are installed in the main heat exchange chamber. The evaporator is close to the front baffle, and the condenser is located behind the evaporator. The top surfaces of the evaporator and the condenser are close to the bottom surface of the upper cover plate. Two upwardly extending support portions are formed at the rear of the bottom seat on the left side of the central baffle portion, and a downwardly extending arc-shaped groove for placing the roller drive motor is formed in the middle of the top surface of the two support portions.

[0006] The bottom surface of the front part of the main heat exchange cavity is formed with a downwardly extending groove, which communicates with a through groove formed at the lower part of the front part of the middle baffle part, and the through groove communicates with an external water groove formed on the top surface of the bottom seat at the left side of the front part of the middle baffle part.

[0007] The bottom surface of the right side of the lower groove is formed with an upwardly extending right protrusion. The top surface of the right protrusion is an inclined wall surface that is higher in the front and lower in the back. The top surface of the right protrusion is lower than the top surface of the lower groove. The bottom surface of the lower groove on the left side of the right protrusion is a second sloping bottom surface, with its front end lower and its rear end higher. The rear end of the second sloping bottom surface is lower than or level with the rear end of the top surface of the right protrusion.

[0008] The bottom surface of the main heat exchange cavity is provided with a base plate for the mounting frame. The mounting frame is located in the main heat exchange cavity. Vertically extending protruding strips are formed on the front and rear parts of the left and right sides of the main heat exchange cavity. Vertical columns are formed on the front and rear parts of the left and right sides of the top surface of the base plate of the mounting frame. Vertical slots are formed on the outer side walls of the two corresponding vertical columns. The vertically extending protruding strips are inserted into the corresponding vertical slots. The mounting bracket's base plate covers the lower groove. An evaporator and a condenser are mounted on the top surface of the mounting bracket's base plate. The end plates on the same side of the evaporator and condenser are fixed together to form an integral end plate. Side slots are formed on the opposing walls of the two corresponding vertical columns at the front and rear. The front and rear parts of the integral end plate are inserted into the corresponding side slots.

[0009] The outstanding effect of this utility model is: Compared with the prior art, its rear baffle has a fan mounting through hole formed in the middle. The bottom seat on the left side of the middle baffle has two upwardly extending support parts formed at the rear. The top surface of the two support parts has a downwardly extending arc-shaped groove for placing the drum drive motor, so that it can meet the installation of the air guide fan and the drum drive motor, which meets the design requirements. Moreover, its external water receiving groove is located outside the main heat exchange chamber, which makes it easy to install a water pump on its upper part. The water inlet pipe of the water pump can be easily extended into the external water receiving groove to realize drainage. Its installation and disassembly are convenient. Attached Figure Description

[0010] Figure 1 This is a partial structural schematic diagram of the present invention; Figure 2 This is a partial structural diagram of the present invention with the top cover removed; Figure 3 yes Figure 2 A schematic diagram of the local structure from a different angle; Figure 4 This is a partial structural diagram of the present invention without the evaporator and condenser; Figure 5 yes Figure 4 A partial structural diagram without the mounting bracket; Figure 6 This is a partial sectional view of the base section; Figure 7 This is a partial structural diagram of the evaporator and condenser; Figure 8 This is a partial structural diagram of the mounting bracket; Figure 9 yes Figure 8 A schematic diagram of the local structure from a different angle. Detailed Implementation

[0011] For example, see below. Figures 1 to 9 As shown, a heating element of a clothes dryer with dual motor mounting positions includes a main housing 10. The main housing 10 includes a bottom seat 11. A front baffle portion 12 extending upward is formed on the front side of the top surface of the bottom seat 11. A middle baffle portion 13 extending upward is formed in the middle of the top surface of the bottom seat 11. A right baffle portion 14 is formed on the right side of the top surface of the bottom seat 11. The front ends of the middle baffle portion 13 and the right baffle portion 14 are formed on the rear wall surface of the front baffle portion 12. A rear baffle portion 15 is formed between the rear portion of the right baffle portion 14 and the rear portion of the middle baffle portion. The bottom of the rear baffle portion 15 is formed on the top surface of the bottom seat 11, and a fan mounting through hole 151 is formed in the middle of the rear baffle portion 15. A main heat exchange chamber is formed between the top surfaces of the front baffle 12, the middle baffle 13, the right baffle 14, the rear baffle 15 and the bottom seat 11. A main air inlet 121 is formed on the part of the front baffle 12 facing the main heat exchange chamber. The top surface of the main heat exchange chamber is covered by an upper cover plate 20. The edge of the upper cover plate 20 is fixedly connected to the top surface of the front baffle 12, the middle baffle 13 and the right baffle 14 by bolts. An evaporator 30 and a condenser 40 are installed in the main heat exchange chamber. The evaporator 30 is close to the front baffle 12, and the condenser 40 is located behind the evaporator 30. The top surfaces of the evaporator 30 and the condenser 40 are close to the bottom surface of the upper cover plate 20. Two upwardly extending support portions 16 are formed at the rear of the bottom seat 11 on the left side of the middle baffle portion 13. The top surface of the two support portions 16 is formed with a downwardly extending arc-shaped groove 161 for placing the roller drive motor.

[0012] In the above structure, a duct fan can be installed in the fan mounting hole 151. Air enters through the main air inlet 121, exchanges heat with the evaporator 30, causing water in the air to condense and drip. Then, after heat exchange in the condenser 40, the air is heated and discharged through the fan mounting hole 151 into the drum to dry the clothes inside. The air then returns to the main air inlet 121, achieving a circulating flow. Drum drive motors can be installed at the two support parts 16, inserted into the two arc-shaped grooves 161. A drive synchronous pulley can be fixed to the output shaft of the drum drive motor, while a conveyor synchronous pulley can be fixed to the outer wall of the dryer drum. A synchronous belt is tensioned between the two, and the drum drive motor drives the drum to rotate automatically. The two are controlled separately to meet the corresponding drive requirements. Even after the drum drive motor stops running, the duct fan continues to operate, maintaining heat exchange and airflow to meet the user's needs.

[0013] Furthermore, the bottom surface of the front part of the main heat exchange cavity is formed with a downwardly extending lower groove 17, which communicates with the through groove 131 formed at the lower part of the front part of the middle baffle part 13, and the through groove 131 communicates with the external water groove 18 formed on the top surface of the bottom seat 11 at the left side of the front part of the middle baffle part 13.

[0014] The bottom surface of the right side of the lower groove 17 is formed with an upwardly extending right protrusion 171. The top surface of the right protrusion 171 is an inclined wall surface that is higher in the front and lower in the back. The top surface of the right protrusion 171 is lower than the top surface of the lower groove 17. The bottom surface of the lower groove 17 on the left side of the right protrusion 171 is a second sloping bottom surface, with its front end lower and its rear end higher. The rear end of the second sloping bottom surface is lower than or level with the rear end of the top surface of the right protrusion 171.

[0015] The bottom surface of the main heat exchange cavity is provided with a base plate for the mounting bracket 50. The mounting bracket 50 is located in the main heat exchange cavity. Vertically extending protrusions 180 are formed on the front and rear parts of both the left and right sides of the main heat exchange cavity. Vertical columns 51 are formed on the front and rear parts of both the left and right sides of the top surface of the base plate of the mounting bracket 50. Vertical slots are formed on the outer side walls of the two corresponding vertical columns 51. The vertically extending protrusions 180 are inserted into the corresponding vertical slots. This structure facilitates the installation of the mounting bracket 50.

[0016] Furthermore, the base plate of the mounting bracket 50 covers the lower groove 17. An evaporator 30 and a condenser 40 are mounted on the top surface of the base plate of the mounting bracket 50. The end plates of the evaporator 30 and the condenser 40 on the same side are fixed together as a single end plate. Side slots 52 are formed on the opposing walls of the two corresponding vertical columns 51. The front and rear parts of the single end plate are inserted into the corresponding side slots 52. This structure facilitates the positioning and installation of the evaporator 30 and the condenser 40.

[0017] Furthermore, the bottom plate of the mounting bracket 50 has upwardly extending side bottom extensions 53 formed on the left and right sides. The front and rear ends of the side bottom extensions 53 are formed on the side walls of the corresponding two vertical columns 51. A bottom middle partition plate 54 is formed on the top surface of the bottom plate of the mounting bracket 50 between the middle of the two side bottom extensions 53. The left and right ends of the bottom middle partition plate 54 are formed on the inner side walls of the two side bottom extensions 53. The condenser 40 is located behind the bottom middle partition plate 54, and the evaporator 30 is located in front of the bottom middle partition plate 54.

[0018] The mounting bracket 50 at the front of the bottom middle partition plate 54 has a long through groove 55 extending to the left and right formed on its bottom plate. The long through groove 55 has multiple horizontal extensions extending to the left and right and end connection parts extending to the front and back in the middle. The ends of the horizontal extensions and end connection parts are formed on the corresponding inner sidewalls of the long through groove 55. All the horizontal extensions and end connection parts are interlaced to form a mesh isolation. The elongated through groove 55 faces the lower recess 17 below.

[0019] The above structure allows the condensed water droplets after the air exchanges heat with the evaporator 30 to drip down and enter the lower groove 17 through the elongated channel 55. The water droplets flow through the top surface of the right protrusion 171 and the second inclined bottom surface to the external water receiving groove 18. The external water receiving groove 18 is located outside the main heat exchange chamber, which makes it easy to install a water pump on its upper part. The water inlet pipe of the water pump can be extended into the external water receiving groove 18 to achieve drainage. Its installation and disassembly are convenient.

[0020] Furthermore, a compressor mounting groove is formed on the bottom seat 11 at the middle of the left side of the middle baffle portion 13, and the bottom of the compressor unit 60 is mounted on the bottom surface of the compressor mounting groove.

[0021] In this embodiment, the outlet of the compressor assembly 60 is connected to the inlet of the condenser 40 via a connecting pipe, the outlet of the condenser 40 is connected to the inlet of the capillary tube via a connecting pipe, the outlet of the capillary tube is connected to the inlet of the evaporator 30 via a connecting pipe, and the outlet of the evaporator 30 is connected to the inlet of the compressor assembly 60 via a connecting pipe. This principle and structure are consistent with existing refrigeration systems and will not be described in detail here.

[0022] In this embodiment, the diameter of the heat exchange tube of the evaporator 30 is larger than that of the heat exchange tube of the condenser 40. The diameter of the heat exchange tube of the evaporator 30 is 7 mm, while the diameter of the heat exchange tube of the condenser 40 is 5 mm. This design allows the refrigerant flowing in the condenser 40 to have more thorough contact with the inner wall of the heat exchange tube (when the refrigerant flows, the refrigerant in the middle of the tube does not contact the inner wall of the tube, resulting in very low heat exchange of the refrigerant flowing in the middle. The smaller tube diameter can greatly reduce the amount of refrigerant flowing in the middle, thereby improving the heat exchange efficiency. At the same time, the smaller tube diameter allows the refrigerant to flow at a higher velocity, which can further improve the heat exchange efficiency). The heat exchange tube of the evaporator 30 has a diameter of 7mm, which allows the liquid refrigerant coming out of the capillary tube to have more space to vaporize, thus absorbing heat and cooling down better. When the air passes through the evaporator 30, it can be cooled down and condensed quickly, causing the water in the air to condense into water droplets.

[0023] In this embodiment, the outlet end of the drying roller of the dryer is connected to the main air inlet 121. The drying roller and other components of the dryer are conventional structures and will not be described in detail here.

[0024] It operates through a duct fan to circulate air. The air enters the main heat exchange chamber through the air inlet 121 and is first condensed by the evaporator 30. The condensate drips through the elongated channel 51 and finally flows to the external water receiving groove 18. The water in the external water receiving groove 18 can be extracted by a water pump installed at the top of the external water receiving groove 18.

[0025] After condensation, the airflow passes through the condenser 40 for heat exchange, causing its temperature to rise rapidly. This increases the air temperature before it enters the drum to dry the clothes inside. This cycle repeats, resulting in good drying effect and high efficiency.

[0026] Finally, the above embodiments are only used to illustrate the present utility model and are not intended to limit the present utility model. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present utility model. Therefore, all equivalent technical solutions also fall within the scope of the present utility model, and the patent protection scope of the present utility model should be defined by the claims.

Claims

1. A heating element for a clothes dryer with dual motor mounting positions, comprising a main housing (10), characterized in that: The main housing (10) includes a bottom seat (11), a front baffle portion (12) extending upward is formed on the front side of the top surface of the bottom seat (11), a middle baffle portion (13) extending upward is formed in the middle of the top surface of the bottom seat (11), a right baffle portion (14) is formed on the right side of the top surface of the bottom seat (11), a rear baffle portion (15) is formed between the rear part of the right baffle portion (14) and the rear part of the middle baffle portion (13), the bottom of the rear baffle portion (15) is formed on the top surface of the bottom seat (11), and a fan mounting through hole (151) is formed in the middle of the rear baffle portion (15). A main heat exchange cavity is formed between the top surfaces of the front baffle (12), the middle baffle (13), the right baffle (14), the rear baffle (15), and the bottom seat (11). A main air inlet (121) is formed on the part of the front baffle (12) facing the main heat exchange cavity. The top surface of the main heat exchange cavity is covered with an upper cover plate (20). The edge of the upper cover plate (20) is fixedly connected to the top surface of the front baffle (12), the middle baffle (13), and the right baffle (14) by bolts. An evaporator (30) and a condenser (40) are installed in the main heat exchange chamber. The evaporator (30) is close to the front baffle (12), and the condenser (40) is located behind the evaporator (30). The top surfaces of the evaporator (30) and the condenser (40) are close to the bottom surface of the upper cover plate (20). Two upwardly extending support portions (16) are formed at the rear of the bottom seat (11) on the left side of the middle baffle portion (13), and a downwardly extending arc-shaped groove (161) for placing the roller drive motor is formed in the middle of the top surface of the two support portions (16).

2. The heating element of a clothes dryer with dual motor mounting positions according to claim 1, characterized in that: The bottom surface of the front part of the main heat exchange cavity is formed with a downwardly extending lower groove (17), which communicates with the through groove (131) formed at the lower part of the front part of the middle baffle part (13), and the through groove (131) communicates with the external water groove (18) formed on the top surface of the bottom seat (11) at the left side of the front part of the middle baffle part (13).

3. The heating element of a clothes dryer with dual motor mounting positions according to claim 2, characterized in that: The bottom surface of the right side of the lower groove (17) is formed with an upwardly extending right protrusion (171). The top surface of the right protrusion (171) is an inclined wall surface that is higher in the front and lower in the back. The top surface of the right protrusion (171) is lower than the top surface of the lower groove (17). The bottom surface of the lower groove (17) on the left side of the right protrusion (171) is a second inclined bottom surface, with its front end lower and rear end higher. The rear end of the second inclined bottom surface is lower or level with the rear end of the top surface of the right protrusion (171).

4. The heating element of a clothes dryer with dual motor mounting positions according to claim 3, characterized in that: The bottom surface of the main heat exchange cavity is provided with the base plate of the mounting bracket (50). The mounting bracket (50) is located in the main heat exchange cavity. Vertical extension protrusions (180) are formed on the front and rear parts of the left and right sides of the main heat exchange cavity. Vertical columns (51) are formed on the front and rear parts of the left and right sides of the top surface of the base plate of the mounting bracket (50). Vertical slots are formed on the outer side walls of the two corresponding vertical columns (51). The vertical extension protrusions (180) are inserted into the corresponding vertical slots. The bottom plate of the mounting bracket (50) covers the lower groove (17). An evaporator (30) and a condenser (40) are installed on the top surface of the bottom plate of the mounting bracket (50). The end plates on the same side of the evaporator (30) and the condenser (40) are fixed together to form an integral end plate. Side slots (52) are formed on the opposite walls of the two corresponding vertical columns (51) at the front and rear. The front and rear parts of the integral end plate are inserted into the corresponding side slots (52).

5. The heating element of a clothes dryer with dual motor mounting positions according to claim 4, characterized in that: The mounting bracket (50) has upwardly extending side bottom extensions (53) formed on the left and right sides of its base plate. The front and rear ends of the side bottom extensions (53) are formed on the side walls of the corresponding two vertical columns (51). A bottom middle partition plate (54) is formed on the top surface of the base plate of the mounting bracket (50) between the middle of the two side bottom extensions (53). The left and right ends of the bottom middle partition plate (54) are formed on the inner side walls of the two side bottom extensions (53). The condenser (40) is located behind the bottom middle partition plate (54), and the evaporator (30) is located in front of the bottom middle partition plate (54).

6. The heating element of a clothes dryer with dual motor mounting positions according to claim 5, characterized in that: The mounting bracket (50) at the front of the bottom middle partition plate (54) has a long through groove (55) extending to the left and right. The middle part of the long through groove (55) is provided with multiple horizontal extensions extending to the left and right and end connection parts extending to the front and back. The ends of the horizontal extensions and end connection parts are formed on the corresponding inner sidewalls of the long through groove (55). All the horizontal extensions and end connection parts are interlocked to form a mesh isolation. The elongated through groove (55) faces the lower recess (17).

7. The heating element of a clothes dryer with dual motor mounting positions according to claim 1, characterized in that: A compressor mounting groove is formed on the bottom seat (11) at the middle of the left side of the middle baffle (13), and the bottom of the compressor unit (60) is mounted on the bottom surface of the compressor mounting groove.

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