Dust-free heating device
By setting a filter and volute structure in each heating zone, the problem of dust generated by the existing heating device in a high cleanliness environment is solved, and the dust-free heating effect is achieved.
Patent Information
- Application Number
- CN202420963591.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-07
- Publication Date
- 2025-03-25
- Estimated Expiration
- 2034-05-07
AI Technical Summary
The existing heating devices are prone to dust particles during the heating process, and cannot meet the environment with high dust-free grade requirements.
A dust-free heating device is designed, and each heating zone is equipped with a filter, which guides the hot air into the upper heating chamber through the volute, and then filters through the filter and blows to the target object to avoid the generation of dust particles.
It realizes effective heating in a high cleanliness environment, ensures the clean state of the target object, and meets the conditions of high dust-free level requirements.
Smart Images
Figure CN222659166U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of dust-free heating, in particular to a dust-free heating device. Background Art
[0002] Taking chip production as an example, in the chip packaging process, the glue between the chip and the substrate needs to be heated and cured to enhance the bonding strength between the chip and the substrate. During the glue heating and curing process, the dust-free level requirements are very strict and it needs to be carried out in an extremely clean environment to prevent dust particles in the airflow from contaminating or damaging the chip surface, ensuring the stable production of high-quality chips.
[0003] In actual use, such heating devices need to set up multiple heating zones side by side to heat different heating zones independently. However, each heating zone is prone to generate dust particles due to cooling, shrinkage or friction, which cannot meet the requirements of dust-free environment with high dust-free level. Utility Model Content
[0004] The utility model aims to provide a dust-free heating device. A filter is arranged in the upper heating cavity of each heating zone, thereby solving the technical problem that the existing heating device cannot meet the requirements of an environment with a high dust-free level.
[0005] To achieve the above-mentioned purpose, the utility model provides a dust-free heating device, comprising a plurality of heating zones which are independent of each other and arranged side by side, each heating zone comprising an upper heating chamber surrounded by an upper cover shell and a lower heating chamber surrounded by a lower cover shell, a filter is provided in the upper heating chamber, a volute is fixedly provided in the lower heating chamber for communicating with the upper heating chamber, the hot air in the lower heating chamber is blown into the upper heating chamber under the guidance of the volute and blown toward the target object after being filtered by the filter.
[0006] Preferably, the wind wheel provided in the lower heating chamber of each heating zone is passed through a rotating shaft, and one end of the rotating shaft is connected to a motor.
[0007] Preferably, the volute includes a wind wheel cylinder and an air guide cylinder connected to the wind wheel cylinder along the tangential direction of the wind wheel cylinder, a wind wheel is installed in the wind wheel cylinder, the wind wheel cylinder is used to guide the hot air in the lower heating chamber into the air guide cylinder, and the air guide cylinder is used to guide the hot air into the upper heating chamber.
[0008] Preferably, a fixed cover is fixed in the upper cover shell, the filter is fixed in the fixed cover, the upper heating chamber includes an air supply duct formed between the upper cover shell and the fixed cover and a purification duct provided between the air outlet of the filter and the air inlet of the lower cover shell, and the purification duct is used to heat the target object; the air supply duct, the filter, the purification duct, the lower heating chamber and the volute are connected in sequence to form a circulating air duct.
[0009] Preferably, a connecting cylinder is fixedly provided at the air inlet end of the air supply duct, and the connecting cylinder is sealed and connected to the air guide cylinder of the volute.
[0010] Preferably, a heater is fixedly provided in the lower heating chamber of each heating zone.
[0011] Preferably, a temperature sensor is provided in the lower heating chamber of each heating zone, and the temperature sensor and heater in each lower heating chamber are connected to the controller; the controller is used to adjust the heating power of the heater according to the signal sent by the temperature sensor to maintain the lower heating chamber within a set range.
[0012] Preferably, the filter is a high temperature and high efficiency filter.
[0013] Preferably, the upper cover shell of each heating zone is arranged in the upper shell, and the lower cover shell of each heating zone is arranged in the lower shell. The upper shell and the lower shell are arranged up and down and have the same width.
[0014] Preferably, outer side walls of both the upper cover shell and the lower cover shell are provided with a heat-insulating layer.
[0015] Compared with the background technology, the dust-free heating device provided by the utility model includes a plurality of heating zones, all of which are arranged side by side and are independent of each other, so as to realize independent heating of the zones. Each heating zone includes an upper heating chamber surrounded by an upper cover shell and a lower heating chamber surrounded by a lower cover shell. A filter is provided in the upper heating chamber, and a volute is fixed in the lower heating chamber, which is connected to the upper heating chamber. When in use, the hot air in the lower heating chamber is blown into the upper heating chamber under the guidance of the volute, and is blown toward the target object after being filtered by the filter. The filter efficiently filters out particulate dust in the hot air to prevent particulate dust from blowing toward the target object, and can be used in environments with high dust-free level requirements. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.
[0017] Figure 1 A longitudinal cross-sectional view of a dust-free heating device provided by an embodiment of the utility model;
[0018] Figure 2 for Figure 1 Horizontal cross-sectional view.
[0019] The reference numerals are as follows:
[0020] An upper casing 1, a lower casing 2, a filter 3, a volute 4, a target 5, a wind wheel 6, a rotating shaft 7, a motor 8, a heater 9, an upper shell 10 and a lower shell 11;
[0021] Upper heating chamber 1-1, fixed cover 1-2 and connecting tube 1-3;
[0022] Air supply duct 1-1-1 and purification duct 1-1-2;
[0023] Lower heating chamber 2-1;
[0024] Wind wheel cylinder 7-1 and wind guide cylinder 7-2.
[0025] Attached Figure 2 The arrows in the figure indicate the direction of hot air flow. DETAILED DESCRIPTION
[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0027] In order to enable those skilled in the art to better understand the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0028] The utility model discloses a dust-free heating device, as shown in the attached Figure 1 As shown, it includes several groups of heating zones, all of which are arranged side by side and are independent of each other, so that all heating zones can be heated independently in different zones, and different target objects 5 can be heated at the same time to achieve efficient heating. Specifically, seven heating zones are fixed side by side in the dust-free heating device, and the width and height of the seven heating zones are equal and evenly distributed along the line.
[0029] For easy maintenance, each heating zone adopts a split design, each heating zone includes an upper heating chamber 1-1 surrounded by an upper cover shell 1 and a lower heating chamber 2-1 surrounded by a lower cover shell 2. The upper cover shell 1 and the lower cover shell 2 are arranged opposite to each other and in an upper and lower arrangement.
[0030] A filter 3 is provided in the upper heating chamber 1-1. The filter 3 is preferably a high-temperature and high-efficiency filter, which can capture smaller dust particles in a high-temperature environment and ensure that the hot air passing through is efficiently filtered. Of course, the type of the filter 3 is not limited thereto. A volute 4 is fixedly provided in the lower heating chamber 2-1. The volute 4 is connected to the upper heating chamber 1-1, so that the hot air in the lower heating chamber 2-1 is blown into the upper heating chamber 1-1 through the volute 4.
[0031] When in use, the hot air in the lower heating chamber 2-1 is blown into the upper heating chamber 1-1 under the guidance of the volute 4, and is blown toward the target object 5 after being filtered by the filter 3. The filter 3 efficiently filters out particulate dust in the hot air to prevent the particulate dust from being blown toward the target object 5, and can be suitable for environments with high dust-free level requirements.
[0032] As attached Figure 1 As shown, the wind wheel 6 provided in the lower heating chamber 2-1 of each heating zone is all installed on a rotating shaft 7. That is to say, the wind wheels 6 of each heating zone are installed on a rotating shaft 7, realizing a series design of multiple wind wheels 6, making the structure more compact. When the rotating shaft 7 rotates, the rotating shaft 7 drives all the wind wheels 6 to rotate synchronously, so that the circulating wind of each heating zone is independently controllable. A motor 8 is connected to one end of the rotating shaft 7, and the rotating shaft 7 is driven by the motor 8 to rotate. The rotating shaft 7 and the motor 8 are connected through a coupling.
[0033] As attached Figure 2 As shown, the volute 4 includes a wind wheel cylinder 7-1 and an air guide cylinder 7-2 connected to the wind wheel cylinder 7-1 along the tangent direction of the wind wheel cylinder 7-1. The wind wheel cylinder 7-1 is equipped with a wind wheel 6. The wind wheel cylinder 7-1 is used to guide the hot air in the lower heating chamber 2-1 into the air guide cylinder 7-2. The air guide cylinder 7-2 is used to guide the hot air into the upper heating chamber 1-1, so that the hot air in the lower heating chamber 2-1 is introduced into the upper heating chamber 1-1 through the volute 4. The wind wheel cylinder 7-1 and the rotating shaft 7 are sealed, which can not only make the rotating shaft 7 rotate relative to the wind wheel cylinder 7-1, but also prevent the particles and dust carried by the hot air from entering the volute 4 through the gap between the rotating shaft 7 and the wind wheel cylinder 7-1.
[0034] As attached Figure 2 As shown, a fixed cover 1-2 is fixedly arranged in the upper cover shell 1, and a filter 3 is fixedly arranged in the fixed cover 1-2. The upper heating chamber 1-1 includes an air supply duct 1-1-1 and a purification duct 1-1-2 which are connected through the filter 3. The air supply duct 1-1-1 is formed between the upper cover shell 1 and the fixed cover 1-2, and the purification duct 1-1-2 is arranged between the air outlet of the filter 3 and the air inlet of the lower cover shell 2. When the hot air in the lower heating chamber 2-1 is introduced into the air supply duct 1-1-1, the hot air in the air supply duct 1-1-1 is filtered by the filter 3 and then blown into the purification duct 1-1-2. A target object 5 is placed in the purification duct 1-1-2, and clean hot air is blown to the target object 5 to achieve clean heating of the target object 5.
[0035] The air supply duct 1-1-1, the filter 3, the purification duct 1-1-2, the lower heating chamber 2-1 and the volute 4 are connected in sequence to form a circulating duct, so that the hot air circulates between the lower heating chamber 2-1 and the upper heating chamber 1-1, with less loss and pollution, and significant energy-saving effect.
[0036] As attached Figure 2As shown, the air inlet end of the air supply duct 1-1-1 is fixedly provided with a connecting tube 1-3, and the connecting tube 1-3 is sealed and connected with the air guide tube 7-2 of the volute 4 to prevent hot air from leaking between the upper cover shell 1 and the lower cover shell 2, reduce losses, and be more conducive to energy saving. The connecting tube 1-3 and the air guide cover can be connected by plugging, or by adding a sealing ring.
[0037] A heater 9 is fixedly arranged in the lower heating chamber 2-1 of each heating zone to heat the airflow in the lower heating chamber 2-1. The heater 9 may be a heating wire, but is not limited thereto.
[0038] A temperature sensor is provided in the lower heating chamber 2-1 of each heating zone for detecting the temperature in the lower heating chamber 2-1. For each heating zone, the temperature sensor and the heater 9 therein are connected to the controller. When the temperature sensor detects that the temperature in the lower heating chamber 2-1 is not within the set range, the temperature sensor sends a signal to the controller, and the controller adjusts the heating power of the heater 9 to automatically adjust the temperature in the lower heating chamber 2-1, ensuring that the temperature in the lower heating chamber 2-1 is always maintained within the set range, avoiding the heating temperature being too high or too low to affect the production quality of the target object 5.
[0039] It should be noted that the controller should include a signal receiving unit, a signal judging unit and a signal sending unit. The signal receiving unit is used to receive the electrical signal sent by the detection components such as the temperature sensor. The signal judging unit and the signal receiving unit are electrically connected so that the signal judging unit is used to judge whether the signal received by the signal receiving unit is a trigger signal. The signal sending unit and the signal judging unit are electrically connected so that the signal sending unit sends the judgment signal generated by the signal judging unit to the execution components such as the heater 9. The specific setting methods of the signal receiving unit, the signal judging unit and the signal sending unit can refer to the prior art; in the present utility model, only the application scenarios of the above three are changed, and no substantial improvement is made thereto. Obviously, the controller with this structure is widely used in existing automatic control equipment, such as MCU, DSP or single-chip microcomputer. The key point of the present utility model is that the controller combines the temperature sensor and the heater 9.
[0040] As attached Figure 1 and 2 As shown, the upper cover shell 1 of each heating zone is integrated in the upper shell 10, and the lower cover shell 2 of each heating zone is integrated in the lower shell 11. The upper shell 10 and the lower shell 11 are arranged up and down and have the same width. The upper shell 10 and the lower shell 11 both serve the purpose of protection. The two ends of the lower shell 11 are respectively provided with bearing seats, and the bearing seats are equipped with bearings that match the rotating shaft 7, which are used to support the rotating shaft 7 to rotate relative to the lower shell 11.
[0041] The outer side walls of the upper cover shell 1 and the lower cover shell 2 are both provided with a heat preservation layer, so as to reduce heat damage during the flow of hot air and help save energy.
[0042] It should be noted that, in this specification, relational terms such as first and second are merely used to distinguish one entity from other entities, but do not necessarily require or imply any actual relationship or order between these entities.
[0043] This article uses specific examples to illustrate the principles and implementation methods of the utility model. The above examples are only used to help understand the method and core ideas of the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.
Claims
1. A dust-free heating device, characterized in that: The invention comprises a plurality of heating zones which are independent of each other and arranged side by side, each of the heating zones comprising an upper heating chamber (1-1) surrounded by an upper cover shell (1) and a lower heating chamber (2-1) surrounded by a lower cover shell (2), a filter (3) being arranged in the upper heating chamber (1-1), a volute (4) being fixedly arranged in the lower heating chamber (2-1) for communicating with the upper heating chamber (1-1), and hot air in the lower heating chamber (2-1) is blown into the upper heating chamber (1-1) under the guidance of the volute (4) and is filtered by the filter (3) before being blown toward a target object (5).
2. The dust-free heating device according to claim 1, characterized in that: The wind wheel (6) provided in the lower heating chamber (2-1) of each heating zone is passed through a rotating shaft (7), and one end of the rotating shaft (7) is connected to a motor (8).
3. The dust-free heating device according to claim 2, characterized in that: The volute (4) comprises a wind wheel cylinder (7-1) and an air guide cylinder (7-2) connected to the wind wheel cylinder (7-1) along a tangent direction of the wind wheel cylinder (7-1); the wind wheel (6) is housed in the wind wheel cylinder (7-1); the wind wheel cylinder (7-1) is used to guide hot air in the lower heating chamber (2-1) into the air guide cylinder (7-2); and the air guide cylinder (7-2) is used to guide the hot air into the upper heating chamber (1-1).
4. The dust-free heating device according to claim 3, characterized in that: A fixed cover (1-2) is fixedly arranged in the upper cover shell (1), the filter (3) is fixedly arranged in the fixed cover (1-2), the upper heating chamber (1-1) comprises an air supply duct (1-1-1) formed between the upper cover shell (1) and the fixed cover (1-2), and a purification duct (1-1-2) arranged between an air outlet of the filter (3) and an air inlet of the lower cover shell (2), the purification duct (1-1-2) being used for heating a target object (5); the air supply duct (1-1-1), the filter (3), the purification duct (1-1-2), the lower heating chamber (2-1) and the volute (4) are connected in sequence to form a circulation duct.
5. The dust-free heating device according to claim 4, characterized in that: A connecting tube (1-3) is fixedly provided at the air inlet end of the air supply duct (1-1-1), and the connecting tube (1-3) is sealedly connected to the air guide tube (7-2) of the volute (4).
6. The dust-free heating device according to any one of claims 1 to 5, characterized in that: A heater (9) is fixedly arranged in the lower heating chamber (2-1) of each heating zone.
7. The dust-free heating device according to claim 6, characterized in that: A temperature sensor is provided in the lower heating chamber (2-1) of each heating zone, and the temperature sensor and the heater (9) in each lower heating chamber (2-1) are connected to a controller; the controller is used to adjust the heating power of the heater (9) according to a signal sent by the temperature sensor so that the lower heating chamber (2-1) is maintained within a set range.
8. The dust-free heating device according to any one of claims 1 to 5, characterized in that: The filter (3) is a high-temperature and high-efficiency filter.
9. The dust-free heating device according to any one of claims 1 to 5, characterized in that: The upper cover shell (1) of each heating zone is arranged in an upper shell (10), and the lower cover shell (2) of each heating zone is arranged in a lower shell (11). The upper shell (10) and the lower shell (11) are arranged up and down and have the same width.
10. The dust-free heating device according to any one of claims 1 to 5, characterized in that: The outer side walls of both the upper cover shell (1) and the lower cover shell (2) are provided with a heat-insulating layer.