Fabric machine with fan heat dissipation structure
By designing an air inlet, air guide cavity, and air outlet channel in the fabric knitting machine, air convection cooling of the negative pressure fan motor is achieved, solving the problem of motor overheating and damage and extending the service life of the negative pressure fan.
Patent Information
- Application Number
- CN202520109844.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-17
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-01-17
AI Technical Summary
Existing fabric knitting machines lack effective heat dissipation structures, which makes the motors in negative pressure fans prone to overheating and damage, affecting their service life.
A fabric knitting machine with a fan cooling structure was designed, including a housing assembly, a base, a fan mounting base and a negative pressure fan. Through the design of air inlet, air guide cavity and air outlet channel, air convection cooling of the motor is realized to ensure the heat dissipation of the motor.
This effectively prevents motor overheating and damage, and extends the service life of the negative pressure fan.
Smart Images

Figure CN223886782U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fabric knitting machine technology, and more specifically, to a fabric knitting machine with a fan cooling structure. Background Technology
[0002] A fabric cleaning machine is a device used for surface cleaning of textiles. Currently, most fabric cleaning machines on the market mainly consist of a housing, water pump, air pump, steam generator, clean water tank, waste water tank, negative pressure fan, and cleaning head. The water pump, air pump, steam generator, and negative pressure fan are all installed inside the housing. The clean water tank and waste water tank are connected to the upper part of the housing. The steam generator is connected to the water pump and air pump, the water pump is connected to the clean water tank, and the negative pressure fan is connected to the waste water tank. The cleaning head is connected to the clean water tank and waste water tank via pipelines. When the fabric cleaning machine is working, the water pump draws water from the clean water tank to the steam generator, and the air pump delivers compressed air to the steam generator. In the production device, the steam generator can transport steam through pipelines to the cleaning head. The steam sprayed from the cleaning head can clean the surface of the textile. At the same time, when the negative pressure fan is working, it can create negative pressure in the wastewater tank, and the steam or liquid water after cleaning the textile surface can be sucked into the wastewater tank. However, in the existing fabric knitting machine structure, when the fabric knitting machine is working, because the existing fabric knitting machine does not have a structure for reliable heat dissipation of the motor in the negative pressure fan, the motor in the negative pressure fan is prone to overheating and damage when the fabric knitting machine is used for a long time, which will affect the service life of the negative pressure fan. Utility Model Content
[0003] The technical problem to be solved by this utility model is to provide a fabric knitting machine with a fan heat dissipation structure, which can avoid the motor in the negative pressure fan from overheating and being damaged.
[0004] This utility model provides a fabric knitting machine with a fan cooling structure, including a housing assembly, a base, a fan mounting base, and a negative pressure fan; the housing assembly is fixed to the base, the fan mounting base is inserted into the lower end of the housing assembly from bottom to top and fixed to the housing assembly, the lower end of the fan mounting base is fixed to the base, and the motor of the negative pressure fan is inserted into the fan mounting base from bottom to top and fixed to the fan mounting base; the housing assembly has an annular first air guide cavity inside, and the bottom of the housing assembly has an air inlet communicating with the first air guide cavity; The outer wall of the upper end of the fan mounting base is circumferentially sealed to the housing assembly. The upper end of the fan mounting base is provided with several circumferentially distributed air inlet channels, all of which are connected to the first air guide cavity. The outer wall of the upper end of the motor is circumferentially sealed to the inner wall of the upper end of the fan mounting base. The lower side wall of the fan mounting base is provided with several circumferentially distributed air outlet channels. The housing assembly, the base, and the fan mounting base form a second air guide cavity. All air outlet channels are connected to the second air guide cavity. The bottom of the base is provided with an air outlet hole that is connected to the second air guide cavity.
[0005] By adopting the above structure, when the motor in the negative pressure fan is working, air from the external environment can enter the inner side of the fan mounting base through the air inlet, the first air guide channel, and the air inlet channel in sequence. The air entering the inner side of the fan mounting base can cool the motor. The air that has cooled the motor can then be discharged to the outside of the fabric machine through the air outlet channel, the second air guide cavity, and the air outlet in sequence. Through the above process, heat dissipation of the motor in the negative pressure fan is achieved, thereby preventing the motor in the negative pressure fan from overheating and being damaged, and thus extending the service life of the negative pressure fan.
[0006] In one possible implementation, multiple air inlets are provided, and the multiple air inlets are arranged circumferentially at intervals at the bottom of the housing assembly. With this structure, air from the external environment can enter the first air guide cavity from the circumferential direction of the housing assembly, thereby enabling the air from the external environment to enter the first air guide cavity more quickly and smoothly.
[0007] In one possible implementation, multiple air outlets are provided, which are arranged circumferentially at intervals at the bottom of the base. With this structure, hot air from the second air guide chamber can be discharged from the circumferential direction of the base to the outside of the fabric machine more quickly and smoothly, thereby improving the efficiency and effect of hot air discharge.
[0008] In one possible implementation, a number of circumferentially spaced notches are provided on the outer edge of the lower end of the base; by adopting this structure, the hot air discharged from the air outlet can be discharged more quickly from the bottom of the base to the outside of the base, and the discharge of hot air can be made smoother.
[0009] In one possible implementation, a first sealing ring is embedded between the outer wall of the upper end of the fan mounting base and the inner wall of the housing assembly. The first sealing ring is tightly sealed to both the outer wall of the upper end of the fan mounting base and the inner wall of the housing assembly. A first annular step is provided on the outer wall of the upper end of the fan mounting base, and the first sealing ring is supported on the first annular step. With this structure, the first sealing ring can reliably achieve circumferential sealing of the gap between the outer wall of the upper end of the fan mounting base and the inner wall of the housing assembly, and under the action of the first annular step, the first annular step can provide reliable support for the first sealing ring.
[0010] In one possible implementation, a second sealing ring is embedded between the outer wall of the upper end of the motor and the inner wall of the upper end of the fan mounting base. The second sealing ring is tightly sealed to both the outer wall of the upper end of the motor and the inner wall of the upper end of the fan mounting base. A second annular step is provided on the outer wall of the upper end of the motor, and the second sealing ring is supported on the second annular step. With this structure, the second sealing ring can reliably achieve circumferential sealing of the gap between the outer wall of the upper end of the motor and the inner wall of the upper end of the fan mounting base, and the second annular step can reliably support the second sealing ring. Attached Figure Description
[0011] Figure 1 This is the first three-dimensional structural schematic diagram of the present invention;
[0012] Figure 2 This is a second three-dimensional structural schematic diagram of the present invention;
[0013] Figure 3 This is a cross-sectional structural diagram of the present invention. Detailed Implementation
[0014] First, those skilled in the art should understand that these embodiments are merely used to explain the technical principles of the embodiments of this application and are not intended to limit the scope of protection of the embodiments of this application. Those skilled in the art can make adjustments as needed to adapt to specific application scenarios.
[0015] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application based on the specific circumstances.
[0016] In the embodiments of this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0017] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments.
[0018] See Figure 1-3 As shown in the figure, this application discloses a fabric knitting machine with a fan heat dissipation structure, including a housing assembly 1, a base 2, a fan mounting seat 3, and a negative pressure fan 4; the housing assembly 1 is fixed on the base 2, the fan mounting seat 3 is inserted into the lower end of the housing assembly 1 from bottom to top and fixed to the housing assembly 1, the lower end of the fan mounting seat 3 is fixed to the base 2, and the motor 41 in the negative pressure fan 4 is inserted into the fan mounting seat 3 from bottom to top and fixed to the fan mounting seat 3; the housing assembly 1 has an annular first air guide cavity 11 inside, and the bottom of the housing assembly 1 has an air inlet 12 communicating with the first air guide cavity 11; The outer wall of the upper end of the fan mounting base 3 is circumferentially sealed to the housing assembly 1. The upper end of the fan mounting base 3 is provided with several circumferentially distributed air inlet channels 31, all of which are connected to the first air guide cavity 11. The outer wall of the upper end of the motor 41 is circumferentially sealed to the inner wall of the upper end of the fan mounting base 3. The lower side wall of the fan mounting base 3 is provided with several circumferentially distributed air outlet channels 32. The housing assembly 1, the base 2, and the fan mounting base 3 form the second air guide cavity 5. All air outlet channels 32 are connected to the second air guide cavity 5. The bottom of the base 2 is provided with an air outlet hole 21 that is connected to the second air guide cavity 5.
[0019] By adopting the above-described structure, when the motor in the negative pressure fan is working, air from the external environment can sequentially enter the inner side of the fan mounting base through the air inlet, the first air guide channel, and the air intake channel. The air entering the inner side of the fan mounting base can cool the motor. The cooled air can then be discharged outside the fabric machine through the air outlet channel, the second air guide cavity, and the air outlet. Through the above process, heat dissipation of the motor in the negative pressure fan is achieved, thereby preventing the motor from overheating and being damaged, and thus extending the service life of the negative pressure fan. In the above-described negative pressure fan, the motor has its own fan blades, which can sequentially draw air from the external environment into the inner side of the fan mounting base through the air inlet, the first air guide channel, and the air intake channel. Under the action of the fan blades, the cooled air can be discharged outside the fabric machine through the air outlet channel, the second air guide cavity, and the air outlet.
[0020] Multiple air inlets 12 are provided, and the multiple air inlets 12 are arranged circumferentially at intervals at the bottom of the housing assembly 1. With this structure, air from the external environment can enter the first air guide cavity from the circumferential direction of the housing assembly, thereby enabling air from the external environment to enter the first air guide cavity more quickly and smoothly.
[0021] Multiple air outlets 21 are provided, and the multiple air outlets 21 are arranged circumferentially at intervals at the bottom of the base 2. With this structure, the hot air from the second air guide cavity can be discharged from the circumferential direction of the base to the outside of the fabric machine more quickly and smoothly, so as to improve the efficiency and effect of hot air discharge.
[0022] Several notches 22 are provided on the outer edge of the lower end of the base 2 in a circumferentially spaced manner; by adopting this structure, the hot air discharged from the air outlet can be discharged more quickly from the bottom of the base to the outside of the base, and the discharge of hot air can be made smoother.
[0023] A first sealing ring 6 is embedded between the outer wall of the upper end of the fan mounting base 3 and the inner wall of the housing assembly 1. The first sealing ring 6 is tightly sealed to both the outer wall of the upper end of the fan mounting base 3 and the inner wall of the housing assembly 1. A first annular step 33 is provided on the outer wall of the upper end of the fan mounting base 3, and the first sealing ring 6 is supported on the first annular step 33. With this structure, the first sealing ring can reliably achieve circumferential sealing of the gap between the outer wall of the upper end of the fan mounting base and the inner wall of the housing assembly, and under the action of the first annular step, the first annular step can provide reliable support for the first sealing ring.
[0024] A second sealing ring 7 is embedded between the outer wall of the upper end of the motor 41 and the inner wall of the upper end of the fan mounting base 3. The second sealing ring 7 is tightly sealed to both the outer wall of the upper end of the motor 41 and the inner wall of the upper end of the fan mounting base 3. A second annular step 411 is provided on the outer wall of the upper end of the motor 41, and the second sealing ring 7 is supported on the second annular step 411. With this structure, the second sealing ring can reliably achieve circumferential sealing of the gap between the outer wall of the upper end of the motor and the inner wall of the upper end of the fan mounting base. Under the action of the second annular step, the second annular step can provide reliable support for the second sealing ring.
[0025] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.
Claims
1. A fabric knitting machine with a fan cooling structure, comprising a housing assembly (1), a base (2), a fan mounting seat (3), and a negative pressure fan (4); the housing assembly (1) is fixed on the base (2), the fan mounting seat (3) is inserted from bottom to top into the lower end of the housing assembly (1) and fixed to the housing assembly (1), the lower end of the fan mounting seat (3) is fixed to the base (2), and the motor (41) of the negative pressure fan (4) is inserted from bottom to top into the fan mounting seat (3) and fixed to the fan mounting seat (3); characterized in that: The housing assembly (1) has an annular first air guide cavity (11) inside, and the bottom of the housing assembly (1) has an air inlet (12) communicating with the first air guide cavity (11); the outer side wall of the upper end of the fan mounting base (3) is circumferentially sealed with the housing assembly (1), and the upper end of the fan mounting base (3) has a plurality of circumferentially distributed air inlet channels (31), all of which are communicating with the first air guide cavity (11); the motor (41) The outer side wall at the upper end is circumferentially sealed to the inner side wall at the upper end of the fan mounting base (3). Several air outlet channels (32) are provided on the side wall at the lower part of the fan mounting base (3). The housing assembly (1), the base (2) and the fan mounting base (3) form a second air guide cavity (5). All the air outlet channels (32) are connected to the second air guide cavity (5). The bottom of the base (2) is provided with an air outlet hole (21) that is connected to the second air guide cavity (5).
2. The fabric knitting machine with a fan cooling structure according to claim 1, characterized in that: The air inlet (12) is provided in multiple ways, and the multiple air inlets (12) are arranged circumferentially at intervals at the bottom of the housing assembly (1).
3. The fabric knitting machine with a fan cooling structure according to claim 1, characterized in that: The air outlet (21) is provided in multiple ways, and the multiple air outlets (21) are arranged circumferentially at intervals at the bottom of the base (2).
4. The fabric knitting machine with a fan cooling structure according to claim 3, characterized in that: The base (2) has several notches (22) arranged in a circumferentially spaced manner on the outer edge of its lower end.
5. The fabric knitting machine with a fan cooling structure according to claim 1, characterized in that: A first sealing ring (6) is embedded between the outer wall of the upper end of the fan mounting base (3) and the inner wall of the housing assembly (1). The first sealing ring (6) is tightly sealed to both the outer wall of the upper end of the fan mounting base (3) and the inner wall of the housing assembly (1). A first annular step (33) is provided on the outer wall of the upper end of the fan mounting base (3), and the first sealing ring (6) is supported on the first annular step (33).
6. The fabric knitting machine with a fan cooling structure according to claim 1, characterized in that: A second sealing ring (7) is embedded between the outer wall of the upper end of the motor (41) and the inner wall of the upper end of the fan mounting base (3). The second sealing ring (7) is tightly sealed to the outer wall of the upper end of the motor (41) and the inner wall of the upper end of the fan mounting base (3). A second annular step (411) is provided on the outer wall of the upper end of the motor (41), and the second sealing ring (7) is supported on the second annular step (411).