Induced draft fan and air conditioning system

Abstract

The utility model provides an induced draft fan and an air conditioning system. The induced draft fan comprises a fan main machine, a first temperature sensor and a second temperature sensor. The fan host comprises an extended adapter patch cord which is used for supplying power to the fan host. The first temperature sensor is installed on an adapter patch cord and electrically connected with a control circuit board in the fan host and can detect the indoor temperature at the position far away from the fan host. The second temperature sensor is arranged in the fan main machine and faces the air inlet end of the fan main machine. The first temperature sensor is arranged on the adapter patch cord of the fan host, so that the first temperature sensor can be far away from the fan host along with the adapter patch cord, a more accurate indoor temperature value can be obtained, the fan host can be accurately controlled after the indoor temperature value is compared with a pipeline temperature value, and meanwhile, the temperature of the fan host can be accurately controlled. And improper starting or closing instructions of the induced draft fan caused by measurement errors of the temperature value can be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of air conditioning systems, in particular to an exhaust fan and an air conditioning system. Background Art

[0002] The induced ventilator fan is used at the air outlet of the air conditioning system and is installed indoors. When the air conditioning fan is not strong enough, it can extract the cold air / hot air in the air conditioning duct and discharge it into the room, so as to avoid the accumulation of cold air / hot air in the duct and the difficulty of the room temperature to drop / rise. At present, the induced ventilator fans on the market generally only have one temperature sensor installed inside the induced ventilator fan or in the air conditioning duct to detect the air temperature in the duct or inside the induced ventilator fan. It does not measure the indoor temperature and cannot intelligently or automatically adjust the opening state of the induced ventilator fan according to the indoor temperature and the temperature in the duct. Summary of the invention

[0003] In order to solve the above technical problems, the utility model proposes a solution that can accurately control the opening of the induced draft fan.

[0004] In a first aspect, an exhaust fan is provided, comprising a fan host, a first temperature sensor and a second temperature sensor, wherein:

[0005] The fan host includes an extended adapter cable for supplying power to the fan host.

[0006] The first temperature sensor is mounted on the adapter cable and is electrically connected to a control circuit board inside the fan host, and can detect the indoor temperature at a location far away from the fan host.

[0007] The second temperature sensor is arranged inside the fan host and faces the air inlet end of the fan host, and is electrically connected to the control circuit board inside the fan host, and can detect the air temperature inside the fan host or inside the pipeline.

[0008] The utility model arranges the first temperature sensor on the adapter cable of the fan host so that it can follow the adapter cable away from the fan host and obtain a more accurate indoor temperature value, thereby achieving precise control of the fan host after comparing the indoor temperature value with the pipeline temperature value. At the same time, it can also avoid the measurement error of the temperature value causing the fan to perform improper start-up or shutdown instructions.

[0009] Preferably, the first temperature sensor is mounted on the adapter of the adapter cable, and the sensing probe is exposed and can be as far away from the fan host as possible.

[0010] Preferably, the wire of the first temperature sensor and the wire of the adapter transfer line use the same wire protection rubber sleeve to prevent the wire of the first temperature sensor from being exposed.

[0011] Preferably, the adapter of the first temperature sensor and the adapter adapter cable adopt the same rubber-coated shell, which simplifies the adapter structure, reduces subsequent assembly steps, and has a compact and firm structure.

[0012] Preferably, a negative ion generator is also provided inside the fan host and is electrically connected to a control circuit board inside the fan host, so as to transport negative ions into the room to purify the air.

[0013] Preferably, in order to avoid the negative ion generator affecting the operation of the control circuit board and its display screen, the negative ion generator is arranged at a position away from the control circuit board, such as causing a flowery screen.

[0014] Preferably, the fan host includes a back cover and a panel, the back cover is provided with a mounting groove facing the panel, the control circuit board is installed in the mounting groove, the panel covers the back cover and presses the control circuit board; the control circuit board is provided with a display screen and buttons, and the panel is provided with yield openings corresponding to the display screen and buttons.

[0015] Preferably, the fan host includes two fans arranged side by side, which can provide greater suction force.

[0016] In a second aspect, an air conditioning system is provided, comprising an air conditioning main unit and the induced draft fan described in the first aspect.

[0017] From the above description of the utility model, it can be seen that the utility model has the following beneficial effects:

[0018] The utility model arranges the first temperature sensor on the adapter cable of the fan host, so that it can follow the adapter cable away from the fan host, and can obtain a more accurate indoor temperature value, so as to achieve precise control of the fan host after comparing the indoor temperature value and the pipeline temperature value, and at the same time, it can also avoid the measurement error of the temperature value leading to improper start or shut down instructions of the fan;

[0019] The first temperature sensor and the adapter adapter cable use the same rubber-coated shell to simplify the adapter structure, reduce subsequent assembly steps, and make the structure compact and firm;

[0020] The negative ion generator is arranged at a position far away from the control circuit board, so that the negative ion generator can avoid affecting the operation of the control circuit board and its display screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0022] in:

[0023] Figure 1 It is an exploded view of a fan;

[0024] Figure 2 It is an axial view of an induced draft fan;

[0025] Figure 3 It is a front view of an induced-air fan;

[0026] Figure 4 It is a top view of an induced draft fan;

[0027] Figure 5 It is a rear view of an induced-air fan;

[0028] Figure 6 is a cross-sectional view of an induced draft fan;

[0029] Figures 1 to 6 The symbols in the figure are: fan host 1, adapter cable 11, adapter 111, rear cover 12, mounting slot 121, panel 13, control circuit board 14, negative ion generator 15, first temperature sensor 2, second temperature sensor 3. DETAILED DESCRIPTION

[0030] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer and more understandable, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention and are not used to limit the present invention.

[0031] See also Figures 1 to 6 , an exhaust fan, comprising a fan host 1, a first temperature sensor 2 and a second temperature sensor 3, wherein,

[0032] The fan host 1 includes an extended adapter cable 11 for supplying power to the fan host 1 .

[0033] The first temperature sensor 2 is mounted on the adapter cable 11 and electrically connected to the control circuit board 14 inside the fan main unit 1, and can detect the indoor temperature at a location far away from the fan main unit 1. In this embodiment, the first temperature sensor 2 is mounted on the adapter 111 of the adapter cable 11, and the sensing probe is exposed, and can be as far away from the fan main unit 1 as possible. In addition, the wires of the first temperature sensor 2 and the wires of the adapter cable 11 use the same wire protection rubber sleeve to prevent the wires of the first temperature sensor 2 from being exposed. At the same time, the first temperature sensor 2 and the adapter 111 of the adapter cable 11 use the same rubber-coated shell, which simplifies the structure of the adapter 111, reduces the subsequent assembly steps, and has a compact and firm structure.

[0034] The second temperature sensor 3 is arranged inside the fan host 1 and faces the air inlet end of the fan host 1, and is electrically connected to the control circuit board 14 inside the fan host 1, and can detect the air temperature inside the fan host 1 or inside the pipeline.

[0035] In one embodiment, the fan host 1 includes a rear cover 12 and a panel 13, the rear cover 12 is provided with a mounting groove 121 facing the panel 13, the control circuit board 14 is installed in the mounting groove 121, the panel 13 covers the rear cover 12 and presses the control circuit board 14; the control circuit board 14 is provided with a display screen and buttons, and the panel 13 is provided with a clearance opening corresponding to the display screen and buttons.

[0036] On the basis of the above embodiments, in order to improve the indoor air quality, in other embodiments, a negative ion generator 15 is further provided inside the fan host 1, and is electrically connected to the control circuit board 14 inside the fan host 1, so as to transport negative ions into the room to purify the air. In addition, in order to prevent the negative ion generator from affecting the operation of the control circuit board and its display screen, the negative ion generator is arranged at a position away from the control circuit board.

[0037] The fan host 1 includes two fans arranged side by side, which can provide greater suction force.

[0038] In one embodiment, an air conditioning system is provided, including an air conditioning main unit and the induced draft fan described in the above embodiment.

[0039] The utility model sets the first temperature sensor 2 on the adapter cable 11 of the fan host 1, so that it can follow the adapter cable 11 away from the fan host 1, and obtain a more accurate indoor temperature value, avoiding the measurement error of the temperature value that causes the fan to perform improper start or shutdown instructions.

[0040] The utility model is described above by way of example in conjunction with the accompanying drawings. It is obvious that the specific implementation of the utility model is not limited to the above-mentioned method. As long as various non-substantial improvements are made using the method concept and technical solution of the utility model, or the concept and technical solution of the utility model are directly applied to other occasions without improvement, they are all within the protection scope of the utility model.

Claims

1. An exhaust fan, characterized in that: It includes a fan host, a first temperature sensor and a second temperature sensor; The fan host includes an extended adapter cable; The first temperature sensor is mounted on the adapter cable and is electrically connected to the control circuit board inside the fan host; The second temperature sensor is arranged inside the fan host, faces the air inlet end of the fan host, and is electrically connected to the control circuit board inside the fan host.

2. The induced ventilator according to claim 1, characterized in that: The first temperature sensor is installed on the adapter of the adapter cable, and the sensing probe is exposed.

3. The induced ventilator according to claim 2, characterized in that: The wire of the first temperature sensor and the wire of the adapter transfer line use the same wire protection rubber sleeve.

4. The induced ventilator according to claim 3, characterized in that: The first temperature sensor and the adapter connector of the adapter adapter cable use the same rubber-encapsulated housing.

5. The induced ventilator according to claim 1, characterized in that: A negative ion generator is also provided inside the fan host and is electrically connected to a control circuit board inside the fan host.

6. The induced ventilator according to claim 5, characterized in that: The negative ion generator is arranged at a position far away from the control circuit board.

7. The induced ventilator according to claim 1, characterized in that: The fan host includes a rear cover and a panel, the rear cover is provided with a mounting groove facing the panel, the control circuit board is installed in the mounting groove, the panel covers the rear cover and presses the control circuit board; the control circuit board is provided with a display screen and buttons, and the panel is provided with yield openings corresponding to the display screen and buttons.

8. The induced ventilator according to claim 1, characterized in that: The fan host comprises two fans arranged side by side.

9. An air conditioning system, characterized in that: It comprises an air conditioner main unit and an exhaust fan as claimed in any one of claims 1 to 8.

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