Temperature sensor mounting structure and air conditioner

Abstract

The utility model relates to a temperature sensor mounting structure and a kind of air conditioner, belong to air conditioner technical field.The utility model air conditioner between the air inlet side branch airflow channel and fresh air outlet air duct has common air duct board, rectangular through-hole that is provided on common air duct board is connected with the air inlet side branch airflow channel and fresh air outlet air duct of air conditioner, rotatingly arranged air duct switching piece is installed in rectangular through-hole, rectangular through-hole is fixedly provided with the shaft sleeve that is matched with air duct switching piece, air duct switching piece is connected with the step motor that its rotation around shaft sleeve is driven by transmission shaft, temperature sensor is fixedly arranged in the center hole of shaft sleeve, and the measuring end of temperature sensor is located in the inside of air duct switching piece.The utility model can realize using same temperature sensor to detect the temperature of indoor unit air inlet air duct and fresh air channel, and temperature sensor always keeps stationary, and temperature sensor's wire is not easy to damage.

Description

Technical Field

[0001] This utility model relates to a temperature sensor mounting structure and an air conditioner, belonging to the field of air conditioner technology. Background Technology

[0002] Currently, air conditioning products with outdoor air intake function have separate ambient temperature sensors for both the indoor and outdoor units. However, the fresh air intake duct lacks a temperature sensor. Therefore, when the fresh air temperature needs to be measured, the temperature value detected by the outdoor unit's sensor must be used. In most residential communities, to improve the aesthetics of the building exterior, outdoor units are typically installed inside louvers, while the fresh air intake duct is suspended on the outside of the wall, far from the outdoor unit's installation area. When the outdoor unit is operating within the louvered space, using its temperature sensor to determine the temperature of the incoming fresh air will result in significant discrepancies. Installing separate temperature sensors in the fresh air duct, at the fresh air outlet, or at the inlet would increase the overall cost. Furthermore, when the fresh air is not in use or when temperature monitoring of the incoming fresh air is not required for extended periods, the temperature sensors remain idle, resulting in low actual utilization.

[0003] In addition, to enable the indoor unit's air intake duct and the fresh air duct to share a single temperature sensor, the conventional design approach is to use a movable partition structure to move the temperature sensor between the two cavities of the indoor unit's air intake duct and the fresh air duct, allowing the two cavities to share the temperature sensor for different time periods. However, with this solution, the sensor's wires are frequently in a state of twisting and turning, which adversely affects the long-term reliability of the wires. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a temperature sensor installation structure that can use the same temperature sensor to detect the temperature of the indoor unit's air intake duct and fresh air duct, and the wires of the temperature sensor are not easily damaged.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: a temperature sensor mounting structure, including a temperature sensor, an air conditioning inlet duct, and a fresh air outlet duct. An air conditioning inlet side airflow channel is provided on one side of the air conditioning inlet duct, and a shared duct plate is provided between the air conditioning inlet side airflow channel and the fresh air outlet duct. A rectangular through hole is provided on the shared duct plate, connecting the air conditioning inlet side airflow channel and the fresh air outlet duct. A rotatably mounted duct switching component is installed in the rectangular through hole. The duct switching component includes an arc-shaped baffle, a first end plate, and a second end plate. The first end plate and the second end plate are respectively perpendicularly connected to both ends of the arc-shaped baffle in the width direction. Both the first end plate and the second end plate are located on the side of the inner circle of the arc-shaped baffle and form a closed connection with the arc-shaped baffle. The adjacent side walls of the rectangular through hole are respectively set as a first inner wall and a second inner wall. A bushing is fixedly provided on the first inner wall. One end plate forms a rotational fit with the outer cylindrical surface of the bushing through a rotating hole, and the arc-shaped baffle is coaxially arranged with the bushing. A drive shaft is fixedly installed on the outer end face of the second end plate. The side wall of the rectangular through hole has a mounting groove that matches the drive shaft. The air duct switching component is connected to a stepper motor that drives it to rotate around the bushing through the drive shaft. The air duct switching component has a first state in which the inner circular surface of the arc-shaped baffle faces the side airflow channel of the air conditioner intake, and a second state in which the inner circular surface of the arc-shaped baffle faces the fresh air outlet duct. The stepper motor enables the air duct switching component to switch between the first state and the second state. The temperature sensor is fixedly installed in the center hole of the bushing, and the measuring end of the temperature sensor is located inside the air duct switching component. The outer diameter of the arc-shaped baffle is adapted to the width of the first inner wall of the rectangular through hole, and the vertical distance between the outer end faces of the first end plate and the second end plate is adapted to the width of the second inner wall of the rectangular through hole.

[0006] To make the structure simple, reliable, and easy to implement, a further preferred embodiment is that the second inner wall of the rectangular through hole has a protruding limiting block, and the limiting block has a first limiting surface and a second limiting surface corresponding to the two ends of the rectangular through hole in the axial direction; when the end face of the first end of the arc-shaped baffle in the arc length direction abuts against the first limiting surface, the air duct switching component is in the first state; when the end face of the second end of the arc-shaped baffle in the arc length direction abuts against the second limiting surface, the air duct switching component is in the second state.

[0007] To make the structure simple, reliable, and easy to implement, a further preferred option is that at least one side of the common air duct plate has a raised structure, so that the axial length of the rectangular through hole is greater than the thickness of the common air duct plate.

[0008] Accordingly, this utility model also provides an air conditioner having the above-mentioned temperature sensor mounting structure.

[0009] To ensure a simple and reliable structure and to effectively guarantee the accuracy of test results, a further preferred embodiment is that the air conditioner includes an air conditioner casing, a fresh air outlet duct fixedly installed in the lower rear part of the inner cavity of the air conditioner casing, an air conditioner outlet on the front of the air conditioner casing, an air conditioner inlet matching the air conditioner inlet duct on the upper part of the back of the air conditioner casing, and a fresh air outlet matching the fresh air outlet duct on the lower part of the back of the air conditioner casing; a side airflow channel for the air conditioner inlet is located on the rear side of the inner cavity of the air conditioner casing and is situated in the interval area between the air conditioner inlet duct and the fresh air outlet duct; a vent is provided on the back of the air conditioner casing in the interval area between the air conditioner inlet and the fresh air outlet, and the vent is connected to the side airflow channel for the air conditioner inlet.

[0010] The beneficial effects of this invention are as follows: When the duct switching component is in the first state, the inner surface of the arc-shaped baffle faces the air conditioning intake bypass airflow channel. At this time, the inner cavity of the duct switching component is a component of the air conditioning intake bypass airflow channel, and the measuring end of the temperature sensor is located inside the air conditioning intake bypass airflow channel. The temperature detected by the temperature sensor is the temperature of the air conditioning intake air. When the duct switching component is in the second state, the inner surface of the arc-shaped baffle faces the fresh air outlet duct. At this time, the inner cavity of the duct switching component is a component of the fresh air outlet duct, and the measuring end of the temperature sensor is located inside the fresh air outlet duct. The temperature detected by the temperature sensor is the temperature of the fresh air flow. The duct switching component can be freely switched between the first and second states by a stepper motor. This invention allows one temperature sensor to detect the air conditioning intake temperature in one time period and the fresh air flow temperature in another time period, reducing the number of temperature sensors and lowering costs. This invention directly detects the airflow temperature in the fresh air channel using a temperature sensor, which can reduce the deviation caused by using an outdoor unit temperature sensor to detect the fresh air temperature. When the air duct switching component is freely switched between the first and second states by the stepper motor (i.e., when switching the ventilation cavity where the temperature sensor is located), the position of the temperature sensor remains fixed (fixed as one with the bushing and the shared air duct plate), and the wires connecting the temperature sensor also remain fixed, which will not affect the long-term reliability of the temperature sensor wires. Attached Figure Description

[0011] Figure 1 This is a side view schematic diagram of the air conditioner described in this utility model; Figure 2 yes Figure 1 A partially enlarged structural diagram at point A (the air duct switching component is in the first state); Figure 3 yes Figure 2 The illustrated embodiment is a structural diagram showing the duct switching component in its second state. Figure 4This is a structural schematic diagram of the air conditioner described in this utility model from the rear view direction; Figure 5 This is a structural schematic diagram of the air conditioner described in this utility model from the front view. Figure 6 This is a three-dimensional structural schematic diagram of the air duct switching component described in this utility model; Figure 7 This is a partial three-dimensional structural diagram of the upper part of the volute of the fresh air module described in this utility model; Figure 8 This is a three-dimensional structural concept of the air duct switching component of this utility model in its first state; Figure 9 Figure 8 A magnified schematic diagram of the structure at point B in the middle.

[0012] Components marked in the diagram: Air conditioner housing 1, Air conditioner air inlet side airflow channel 101, Air conditioner air outlet 102, Air conditioner air inlet 103, Fresh air outlet 104, Ventilation vent 105, Fresh air module 2, Fresh air outlet duct 201, Fresh air inlet pipe interface 202, Duct switching component 3, Arc-shaped baffle 301, First end plate 302, Second end plate 303, Drive shaft 304, Rotating hole 305, Bushing 4, Temperature sensor 5, Stepper motor 6, Common duct plate 7, Limiting block 8, Heat exchanger 9. Detailed Implementation

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0014] like Figures 1 to 9As shown, the temperature sensor mounting structure of this utility model includes a temperature sensor 5, an air conditioning inlet duct, and a fresh air outlet duct 201. An air conditioning inlet side airflow channel 101 is provided on one side of the air conditioning inlet duct and is connected thereto. A common duct plate 7 is provided between the air conditioning inlet side airflow channel 101 and the fresh air outlet duct 201. A rectangular through hole is provided on the common duct plate 7 connecting the air conditioning inlet side airflow channel 101 and the fresh air outlet duct 201. A rotatably mounted duct switching component is installed in the rectangular through hole. 3. The air duct switching component 3 includes an arc-shaped baffle 301, a first end plate 302, and a second end plate 303. The first end plate 302 and the second end plate 303 are respectively vertically connected to both ends of the arc-shaped baffle 301 in the width direction. The first end plate 302 and the second end plate 303 are both located on the side of the inner circular surface of the arc-shaped baffle 301 and form a closed connection with the arc-shaped baffle 301. That is, the arc-shaped baffle 301, the first end plate 302, and the second end plate 303 constitute a hood structure with the above-mentioned special shape. In a preferred embodiment of this utility model, the common air duct plate 7 can usually be the volute in the fresh air module 2. Then, an air duct plate connected to the above-mentioned rectangular through hole is added to the outer surface area of ​​the volute to form the air conditioning intake side airflow channel 101.

[0015] The adjacent two side walls of the rectangular through hole are respectively designated as the first inner wall and the second inner wall. A bushing 4 is fixedly installed on the first inner wall, which means that the side with the bushing 4 is the first inner wall of the rectangular through hole. Any side adjacent to the first inner wall is the second inner wall of the rectangular through hole. In a preferred embodiment of this utility model, the inner wall of the side with the limit block 8 is the second inner wall of the rectangular through hole. The first end plate 302 forms a rotational fit with the outer cylindrical surface of the bushing 4 through the rotating hole 305, and the arc-shaped baffle 301 is coaxially arranged with the bushing 4 (that is, the rotation path of the outer surface of the arc-shaped baffle 301 is a cylindrical surface, and it is coaxially arranged with the outer circular surface of the bushing 4). A drive shaft 304 is fixedly installed on the outer end face of the second end plate 303. The side wall of the rectangular through hole has a mounting groove that matches the drive shaft 304. The air duct switching component 3 is connected to a stepper motor 6 that drives it to rotate around the bushing 4 through the drive shaft 304. The connection between the drive shaft 304 and the output shaft of the stepper motor 6 is a conventional technology. It can be directly fixed by a coupling, or it can be connected by a key, or it can be connected by a gear transmission mechanism, etc. The air duct switching component 3 has a first state in which the inner circular surface of the arc-shaped baffle 301 faces the air conditioning intake side airflow channel 101, and a second state in which the inner circular surface of the arc-shaped baffle 301 faces the fresh air outlet air duct 201. The stepper motor 6 can switch the air duct switching component 3 between the first state and the second state. The temperature sensor 5 is fixedly installed in the center hole of the bushing 40, and the measuring end of the temperature sensor 5 is located inside the air duct switching component 3. In the first state, the inner cavity of the duct switching component 3 is part of the air conditioning intake bypass airflow channel 101, and the measuring end of the temperature sensor 5 is located inside the air conditioning intake bypass airflow channel 101. The temperature detected by the temperature sensor 5 is the temperature of the air conditioning intake air. In the second state, the inner cavity of the duct switching component 3 is part of the fresh air outlet airflow channel 201, and the measuring end of the temperature sensor 5 is located inside the fresh air outlet airflow channel 201. The temperature detected by the temperature sensor 5 is the temperature of the fresh air flow. This invention allows one temperature sensor 5 to detect the air conditioning intake air temperature in one time period and the fresh air flow temperature in another time period, reducing the number of temperature sensors 5 and lowering costs. This invention directly detects the airflow temperature in the fresh air channel through the temperature sensor 5, reducing the deviation caused by using an outdoor unit temperature sensor to detect the fresh air temperature. When the stepper motor 6 allows the air duct switching component 3 to freely switch between the first and second states (i.e., when switching the ventilation cavity where the temperature sensor 5 is located), the position of the temperature sensor 5 remains fixed (fixed as one with the bushing 4 and the shared air duct plate 7), and the wires connecting the temperature sensor 5 also remain fixed, which will not affect the long-term reliability of the wires of the temperature sensor 5.It is understood that the outer diameter of the arc-shaped baffle 301 in this utility model should be adapted to the width of the first inner wall of the rectangular through hole (the outer surface of the arc-shaped baffle 301 and the two inner walls corresponding to the rectangular through hole can usually be in a clearance fit), and the vertical distance between the outer end face of the first end plate 302 and the outer end face of the second end plate 303 should be adapted to the width of the second inner wall of the rectangular through hole (the outer end face of the first end plate 302 and the outer end face of the second end plate 303 relative to the two inner walls corresponding to the rectangular through hole can usually also form a clearance fit). This ensures that the air duct switching component 3, whether in the first state or the second state, effectively separates the air conditioning intake side airflow channel 101 from the fresh air outlet airflow channel 201.

[0016] To ensure a simple, reliable, and easy-to-implement structure, in some preferred embodiments, the second inner wall of the rectangular through hole has a protruding limiting block 8. The limiting block 8 has a first limiting surface and a second limiting surface corresponding to the two ends of the rectangular through hole along its axial direction. When the end face of the first end of the arc-shaped baffle 301 in the arc length direction abuts against the first limiting surface, the air duct switching component 3 is in a first state; when the end face of the second end of the arc-shaped baffle 301 in the arc length direction abuts against the second limiting surface, the air duct switching component 3 is in a second state. The main function of the limiting block 8 is to control the rotational stroke of the air duct switching component 3.

[0017] To ensure a simple, reliable, and easy-to-implement structure, in some preferred embodiments, at least one side of the common air duct plate 7 has a raised structure, such that the axial length of the rectangular through hole is greater than the thickness of the common air duct plate 7. This design allows the rectangular through hole to have sufficient axial length and form a larger mating surface with the air duct switching component 3, so that the air duct switching component 3 can better serve to separate the air conditioning intake side airflow channel 101 from the fresh air outlet air duct 201.

[0018] Accordingly, this utility model also provides an air conditioner with the above-described temperature sensor mounting structure. This utility model is applicable to air conditioners with a fresh air module 2.

[0019] To ensure a simple and reliable structure and effectively guarantee the accuracy of test results, in a preferred embodiment of a cabinet-type air conditioner, the air conditioner includes an air conditioner housing 1. A fresh air outlet duct 201 is fixedly disposed in the lower rear part of the inner cavity of the air conditioner housing 1, which is equivalent to the fresh air module 2 being disposed in the lower rear part of the air conditioner housing 1. An air conditioner outlet 102 is disposed on the front of the air conditioner housing 1, an air conditioner inlet 103 matching the air conditioner inlet duct is disposed on the upper rear part of the air conditioner housing 1, and a fresh air outlet duct matching the air conditioner inlet duct is disposed on the lower rear part of the air conditioner housing. 201 Matches the fresh air outlet 104; the air conditioning intake side airflow channel 101 is located on the rear side of the inner cavity of the air conditioning housing 1 and is located in the interval area between the air conditioning intake air duct and the fresh air outlet air duct 201. The back of the air conditioning housing 1 is provided with a vent 105 in the interval area between the air conditioning intake 103 and the fresh air outlet 104. The vent 105 is connected to the air conditioning intake side airflow channel 101. The air conditioning intake side airflow channel 101 can usually be composed of a duct plate located below the air guide frame and the rear shell of the air conditioning housing 1.

Claims

1. A temperature sensor mounting structure, comprising a temperature sensor (5), an air conditioning inlet duct, and a fresh air outlet duct (201), characterized in that: An air conditioning intake duct is provided on one side with an air conditioning intake side airflow channel (101) connected to it. The air conditioning intake side airflow channel (101) and the fresh air outlet duct (201) are connected by a common duct plate (7). The common duct plate (7) is provided with a rectangular through hole connecting the air conditioning intake side airflow channel (101) and the fresh air outlet duct (201). A rotatable duct switching component (3) is installed in the rectangular through hole. The duct switching component (3) includes an arc-shaped baffle (301), a first end plate (302), and a second end plate (303). The first end plate (302) and the second end plate (303) are respectively vertically connected to the two ends of the arc-shaped baffle (301) in the width direction. The first end plate (302) and the second end plate (303) are both located on the side of the inner circle of the arc-shaped baffle (301) and form a closed connection with the arc-shaped baffle (301). The adjacent two side walls of the rectangular through hole are respectively set as the first inner wall and the second inner wall. The first inner wall is fixedly provided with a bushing (4). The first end plate (302) forms a rotational fit with the outer cylindrical surface of the bushing (4) through the rotating hole (305). Furthermore, the arc-shaped baffle (301) and the bushing (4) are arranged coaxially. The outer end face of the second end plate (303) is fixedly provided with a drive shaft (304). The side wall of the rectangular through hole has a mounting groove that matches the drive shaft (304). The air duct switching component (3) is connected to a stepper motor (6) that drives it to rotate around the bushing (4) through the drive shaft (304). The air duct switching component (3) has a first state in which the inner circular surface of the arc-shaped baffle (301) faces the air conditioning intake side airflow channel (101), and a second state in which the inner circular surface of the arc-shaped baffle (301) faces the side airflow channel (101). The second state of the fresh air outlet duct (201) can be switched between the first and second states by the stepper motor (6); the temperature sensor (5) is fixedly installed in the center hole of the bushing (4), and the measuring end of the temperature sensor (5) is located inside the duct switching component (3); the outer diameter of the arc-shaped baffle (301) is adapted to the width of the first inner wall of the rectangular through hole, and the vertical distance between the outer end face of the first end plate (302) and the outer end face of the second end plate (303) is adapted to the width of the second inner wall of the rectangular through hole.

2. The temperature sensor mounting structure as described in claim 1, characterized in that: The second inner wall of the rectangular through hole has a protruding limiting block (8), and the limiting block (8) has a first limiting surface and a second limiting surface corresponding to the two ends of the rectangular through hole in the axial direction. When the end face of the first end of the arc length direction of the arc-shaped baffle (301) abuts against the first limiting surface, the air duct switching component (3) is in the first state. When the end face of the second end of the arc length direction of the arc-shaped baffle (301) abuts against the second limiting surface, the air duct switching component (3) is in the second state.

3. The temperature sensor mounting structure as described in claim 1, characterized in that: At least one side of the common air duct plate (7) has a raised structure such that the axial length of the rectangular through hole is greater than the thickness of the common air duct plate (7).

4. An air conditioner, characterized in that: Includes the temperature sensor mounting structure as described in any one of claims 1 to 3.

5. The air conditioner as described in claim 4, characterized in that: The air conditioner housing (1) includes a fresh air outlet duct (201) fixedly installed in the lower rear part of the inner cavity of the air conditioner housing (1), an air conditioner outlet (102) is provided on the front of the air conditioner housing (1), an air conditioner inlet (103) matching the air conditioner inlet duct is provided on the upper part of the back of the air conditioner housing (1), and a fresh air outlet (104) matching the fresh air outlet duct (201) is provided on the lower part of the back of the air conditioner housing; an air conditioner inlet side airflow channel (101) is provided on the rear side of the inner cavity of the air conditioner housing (1) and is located in the interval area between the air conditioner inlet duct and the fresh air outlet duct (201); a ventilation opening (105) is provided on the back of the air conditioner housing (1) in the interval area between the air conditioner inlet (103) and the fresh air outlet (104), and the ventilation opening (105) is connected to the air conditioner inlet side airflow channel (101).

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