An air source heat pump unit capable of self-maintenance

Abstract

The present invention relates to the technical field of air source heat pump machines, and discloses an air source heat pump unit capable of self-maintenance, which includes a cabinet and a fan. The fan is fixedly connected to the outer wall of the cabinet. Inside the cabinet, a compressor, a heat exchanger and an evaporator are respectively fixedly connected. The outer wall and the top of the compressor are fixedly communicated with monitoring boxes. One end of the pipeline two away from the compressor is fixedly communicated with the evaporator, and one end of the pipeline one away from the compressor is fixedly communicated with the heat exchanger; when the staff places a new sensor module between two stabilizing plates, it can quickly monitor the abnormal temperature in the compressor, and at the same time, in the case of damage to the sensor module, it can quickly give an alarm, avoiding the situation that the abnormal temperature inside the compressor caused by the damage of the sensor module leads to the damage of the overall equipment, and achieving an effective self-maintenance effect.

Description

Technical Field

[0001] The present invention relates to the technical field of air source heat pump machines, and particularly relates to an air source heat pump unit capable of self-maintenance. Background Art

[0002] As an efficient energy conversion device, the air source heat pump unit has been widely used in modern life. Among them, the compressor is the core component of the air source heat pump unit, and its operating state directly affects the performance and efficiency of the entire unit. In order to ensure the normal operation of the compressor, it is necessary to monitor in real time parameters such as the temperature and pressure in its inlet and outlet pipes. During the operation of the air source heat pump unit, the temperature and pressure inside the compressor will change with the change of the working state. According to the first law of thermodynamics, the external work is done on the gas during the compression process of the compressor, increasing the internal energy of the gas, mainly manifested as an increase in temperature. At the same time, the pressure will also increase accordingly. Therefore, accurately monitoring the temperature and pressure in the inlet and outlet pipes of the compressor is crucial for ensuring the safe and stable operation of the air source heat pump unit.

[0003] However, during the monitoring of the temperatures at the exhaust port and suction port of the internal compressor of the air source heat pump unit, the temperatures at the exhaust port and suction port of the compressor can reflect the operating state of the compressor. If the exhaust temperature is too high, it means problems such as compressor overload, insufficient refrigerant, or poor condenser heat dissipation. However, the existing air source heat pump units rely only on a single sensor for monitoring, there is a risk of missed detection. Over time and due to various factors during the use of the air source heat pump unit, the performance of the sensor will change. For example, environmental factors such as temperature, humidity, and vibration, as well as the long-term working load, will cause the sensitive elements of the sensor to age and drift, etc., gradually reducing the accuracy of the sensor. If not calibrated, it will affect the accurate judgment of the operating state of the air source heat pump unit, resulting in inaccurate measurement results. Therefore, for air source heat pump unit equipment that requires sensors with high installation accuracy or has strict requirements for the accuracy of measurement results, more frequent calibration is needed, such as calibrating the sensor accuracy every six months or every quarter, to reduce the damage of the equipment caused by the inability to detect the abnormal conditions of the temperature and pressure inside the compressor in time, thereby affecting the accuracy of the monitoring of the temperature and pressure inside the compressor. Therefore, it is necessary to provide an air source heat pump unit capable of self-maintenance to solve the above problems. Summary of the Invention

[0004] The main object of the present invention is to provide an air source heat pump unit capable of self-maintenance, which can effectively solve the problems raised in the above background art.

[0005] To achieve the above object, the technical solution adopted by the present invention is as follows: An air source heat pump unit capable of self-maintenance, including a cabinet and a fan, the fan is fixedly connected to the outer wall of the cabinet, and a compressor, a heat exchanger and an evaporator are respectively fixedly connected inside the cabinet. Monitoring boxes are fixedly communicated with the outer wall and the top of the compressor. A first pipeline and a second pipeline are respectively fixedly communicated with both sides of the monitoring box. The end of the second pipeline far away from the compressor is fixedly communicated with the evaporator, and the end of the first pipeline far away from the compressor is fixedly communicated with the heat exchanger. It further includes:

[0006] A self-maintenance switching component for quickly switching when the sensor is damaged to improve the self-maintenance effect;

[0007] A locking and stabilizing component for increasing the placement stability after the sensor replacement is completed.

[0008] As a further improvement of the above solution, the self-maintenance switching component includes monitoring pipes fixedly communicated with the outer wall of the monitoring box. Fixing boxes are fixedly connected to the outer walls of the monitoring pipes. Bimetallic sheets are installed on the inner walls of the monitoring pipes. Micro motors are fixedly connected to the outer walls of the fixing boxes. Adjusting lead screws are fixedly connected to the output shafts of the micro motors. Limiting rods are fixedly connected to the interiors of the fixing boxes. Moving blocks are threadedly connected to the outer walls of the adjusting lead screws. The moving blocks are slidably connected to the outer walls of the limiting rods. Moving plates are slidably connected to the interiors of the monitoring pipes. The bottoms of the moving blocks are rotatably connected to a bidirectional lead screw. Fixing grooves are formed in the interiors of the moving plates. The bidirectional lead screws are rotatably connected to the interiors of the fixing grooves. Adjusting blocks are symmetrically threadedly connected to the outer walls of the bidirectional lead screws. A stabilizing plate is fixedly connected to the outer wall of each of the two adjusting blocks. A sensor module is placed between the two stabilizing plates. An anti-slip layer is provided on the outer wall of the moving plate.

[0009] As a further improvement of the above solution, the self-maintenance switching component further includes a fixed rack fixedly connected to the inner wall of the fixing box. A first micro electric air rod is fixedly connected to the bottom of the moving block. A connecting plate is fixedly connected to the telescopic shaft of the first micro electric air rod. A moving gear is rotatably connected to the bottom of the connecting plate. The connecting plate and the moving gear are slidably connected to the outer wall of the bidirectional lead screw. The fixed rack and the moving gear are meshed with each other.

[0010] As a further improvement of the above solution, the self-maintenance switching component further includes an activity cavity formed in the monitoring pipe. A first T-shaped rod is slidably connected to the interior of the activity cavity. A sealing plate is fixedly connected to the end of the first T-shaped rod far away from the monitoring pipe. A first compression spring is sleeved on the outer wall of the first T-shaped rod. The two ends of the first compression spring are respectively fixedly connected to the first T-shaped rod and the activity cavity.

[0011] As a further improvement of the above solution, the locking and stabilizing component includes locking baffles symmetrically and fixedly connected to the inner wall of the monitoring tube. Inside the moving plate, there are symmetrically and fixedly connected fixing plates. Inside each of the fixing plates, there is an activity groove. On the inner walls of the activity grooves, there are fixedly connected micro electric air rods II. The telescopic shafts of the micro electric air rods II are fixedly connected to moving rods. The moving rods penetrate through the fixing plates. On the outer walls of the moving rods, there are fixedly connected sliding plates. A compression spring II is sleeved on the outer wall of the moving rod. The two ends of the compression spring II are respectively fixedly connected to the sliding plate and the activity groove. The end of the moving rod away from the micro electric air rod II is fixedly connected to a locking convex block. An unlocking retaining ring is slidably connected to the outer wall of the moving rod.

[0012] As a further improvement of the above solution, the locking and stabilizing component further includes an installation groove and a locking slot opened in the locking baffle. The locking convex block is slidably connected inside the locking slot. Inside the installation groove, there is fixedly connected an installation plate. Inside the installation plate, there is a T-shaped rod II slidably connected. The end of the T-shaped rod II away from the installation plate is fixedly connected to a locking inclined block. A compression spring III is sleeved on the outer wall of the T-shaped rod II. The two ends of the compression spring III are respectively fixedly connected to the installation groove and the installation plate. The locking inclined block is slidably connected inside the locking slot and the installation groove.

[0013] As a further improvement of the above solution, on the outer wall of the bidirectional lead screw, there are fixedly connected limit convex strips. Inside the moving gear, there is a limit sliding groove opened. The limit convex strips and the limit sliding groove cooperate with each other. The shapes of the limit convex strips and the limit sliding groove are both cross-shaped.

[0014] As a further improvement of the above solution, a trigger alarm is fixedly connected to the outer wall of the sensor module.

[0015] As a further improvement of the above solution, on the outer wall of the moving plate, there are symmetrically opened fixing ports. The adjusting blocks are all slidably connected inside the fixing ports.

[0016] As a further improvement of the above solution, on the surfaces where the fixed box and the monitoring tube are in contact, there are symmetrically opened limit ports. The bidirectional lead screw and the micro electric air rod I are both slidably connected inside the limit ports.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. When the temperature in the inlet and outlet pipes of the compressor is higher than the range value, the bimetallic strip is heated and deformed and bent under the action of the temperature exceeding the range value, so that the bending position of the bimetallic strip directly triggers the trigger alarm, and the trigger alarm sounds an alarm that the temperature inside the compressor is abnormal, which is convenient for reminding the staff that there is an abnormality inside the equipment, so as to facilitate their rapid maintenance. The trigger alarm sends a signal to the controller at the same time as the alarm sounds an alarm. The controller electrically controls the micro motor to start, and the moving plate and the sensor module are directly moved out of the monitoring tube by adjusting the thread of the screw rod, and the sealing plate is pushed outward by the movement of the moving plate. When the moving plate and the sealing plate are fitted, the controller controls the micro electric gas rod to start to mesh the fixed rack and the moving gear, and the sensor module is loosened through the bidirectional thread of the bidirectional screw rod, and the loosened sensor module is moved out through the edge space. The staff places the sensor module that has been recalibrated between the two stabilizing plates, so that the abnormal temperature in the compressor can be quickly monitored to avoid the situation where the abnormal temperature inside the compressor causes damage to the overall equipment, thereby achieving an effective self-maintenance effect.

[0019] Compared with the existing technology, the present design has significant advantages. In the traditional air source heat pump unit, when the accuracy of the sensor is not calibrated, the accuracy of the sensor is reduced, and it is often difficult to quickly detect the abnormal temperature inside the compressor, which can easily cause the equipment to be damaged due to overtemperature. The present design uses dual monitoring of the bimetallic strip and the sensor module. On the basis of sensor module monitoring, it can trigger an alarm in time through the physical properties of the bimetallic strip, thereby greatly improving the reliability of temperature anomaly detection. At the same time, when it is necessary to calibrate the accuracy of the sensor module at a regular interval, the sensor module can be automatically removed, making it convenient for the staff to re-insert the sensor module that has completed the accuracy calibration, thereby realizing continuous monitoring and self-maintenance of the compressor temperature, greatly improving the stability and reliability of the air source heat pump unit.

[0020] 2. When the fixed plate contacts the locking baffle, the locking protrusion is inserted in the locking slot, and the locking bevel block contracts when the locking protrusion enters the locking slot due to the thrust, and then is reset by the compression spring three and inserted in the middle position between the locking protrusion and the unlocking baffle ring. The plane position of the locking bevel block contacts the plane of the locking protrusion, thereby achieving an effective blocking effect, so that the fixed plate and the locking baffle can be quickly locked. By locking the fixed plate and the locking baffle, the movable plate and the stable sensor module can be more stably placed in the monitoring tube. Since the pressure inside the compressor flows back during the process, the sensor module is prone to shaking, resulting in unstable monitoring effect. By locking the movable plate and the sensor module, the movable plate and the sensor module can stably monitor the temperature and pressure inside the compressor.

[0021] Compared with the traditional technology, the present design has obvious advantages. When the internal pressure of the compressor in the traditional air source heat pump unit changes, the sensor module is easily affected and shakes, making it difficult to ensure stable monitoring effects. However, through a clever locking structure, the present design effectively solves this problem. Even in the case of internal pressure fluctuations of the compressor, it can still ensure the stability of the sensor module, thereby improving the accuracy and reliability of monitoring. This design not only helps to promptly detect abnormal temperature and pressure conditions inside the compressor but also provides more accurate data support for the self-maintenance of the equipment, greatly reducing the risk of equipment failure caused by unstable monitoring and improving the overall performance and service life of the air source heat pump unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0023] Figure 1 Schematic diagram of the overall structure of the present invention;

[0024] Figure 2 Cross-sectional view of the internal structure of the cabinet of the present invention;

[0025] Figure 3 Cross-sectional view of the internal structure of the monitoring box of the present invention;

[0026] Figure 4 For the present invention Figure 3 Enlarged schematic diagram of the structure at A in

[0027] Figure 5 For the present invention Figure 4 Enlarged schematic diagram of the structure at B in

[0028] Figure 6 Cross-sectional view of the internal structure of the monitoring pipe of the present invention;

[0029] Figure 7 For the present invention Figure 6 Enlarged schematic diagram of the structure at C in

[0030] Figure 8 For the present invention Figure 6 Enlarged schematic diagram of the structure at D in

[0031] Figure 9 Schematic diagram of the structure of the self-maintenance switching component of the present invention;

[0032] Figure 10 For the present invention Figure 9 Enlarged schematic diagram of the structure at E in

[0033] In the figure: 1, cabinet; 2, fan; 3, compressor; 4, heat exchanger; 5, pipe one; 6, pipe two; 7, monitoring box;

[0034] 8, self-maintenance switching component; 801, monitoring pipe; 802, fixed box; 803, bimetallic strip; 804, micro motor; 805, adjusting screw rod; 806, limiting rod; 807, moving block; 808, moving plate; 809, fixed slot; 810, bidirectional screw rod; 811, adjusting block; 812, stabilizing plate; 813, sensor module; 814, fixed rack; 815, micro electric air rod one; 816, connecting plate; 817, moving gear; 818, movable cavity; 819, sealing plate; 820, T-shaped rod one; 821, compression spring one;

[0035] 9, locking and stabilizing component; 901, fixing plate; 902, movable slot; 903, locking baffle; 904, micro electric air rod two; 905, moving rod; 906, sliding plate; 907, compression spring two; 908, locking convex block; 909, unlocking retaining ring; 910, locking slot; 911, mounting slot; 912, mounting plate; 913, T-shaped rod two; 914, compression spring three; 915, locking inclined block; 10, trigger alarm; 11, limiting rib; 12, limiting chute; 13, fixing port; 14, limiting port. Specific embodiments

[0036] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0037] Please refer to Figures 1 to 10 As shown, the present invention provides an embodiment: an air source heat pump unit capable of self-maintenance, including a cabinet 1 and a fan 2. The fan 2 is fixedly connected to the outer wall of the cabinet 1. A compressor 3, a heat exchanger 4 and an evaporator are respectively fixedly connected inside the cabinet 1. Monitoring boxes 7 are fixedly communicated with both the outer wall and the top of the compressor 3. Pipe one 5 and pipe two 6 are respectively fixedly communicated with both sides of the monitoring box 7. One end of pipe two 6 far from the compressor 3 is fixedly communicated with the evaporator, and one end of pipe one 5 far from the compressor 3 is fixedly communicated with the heat exchanger 4. It further includes:

[0038] A self-maintenance switching component 8 for quickly switching when the sensor is damaged to improve the self-maintenance effect;

[0039] A locking and stabilizing component 9 for increasing the placement stability after the sensor replacement is completed;

[0040] The self-maintenance switching component 8 includes monitoring pipes 801 that are fixedly connected to the outer wall of the monitoring box 7. The monitoring pipes 801 can connect the sensor module 813 to the fluid environment inside the monitoring box 7, enabling the sensor module 813 to accurately monitor parameters such as temperature and pressure in the inlet and outlet pipes of the compressor 3. At the same time, the fixed connection method of the monitoring pipes 801 ensures the stability and reliability of the monitoring, reducing the influence of external interference on the monitoring results. Fixed boxes 802 are fixedly connected to the outer walls of the monitoring pipes 801. Bimetallic strips 803 are installed on the inner walls of the monitoring pipes 801. The bimetallic strips 803 can deform and bend when the temperature exceeds the range value, triggering the alarm 10 to issue an alarm, timely reminding the staff that the temperature inside the compressor 3 is abnormal. This dual monitoring mechanism improves the reliability of temperature anomaly detection and avoids the possible missed detection situation that may occur by relying solely on the sensor module 813. Miniature motors 804 are fixedly connected to the outer walls of the fixed boxes 802. Output shafts of the miniature motors 804 are fixedly connected to adjusting lead screws 805. The adjusting lead screws 805 can accurately control the moving position of the moving blocks 807, thereby realizing the accurate movement of the moving plate 808 and the sensor module 813. The threaded connection method ensures the stability and reliability of the movement, avoiding shaking and deviation during the movement. Limiting rods 806 are fixedly connected to the interiors of the fixed boxes 802. Moving blocks 807 are threadedly connected to the outer walls of the adjusting lead screws 805. The moving blocks 807 are all slidably connected to the outer walls of the limiting rods 806. Moving plates 808 are slidably connected to the interiors of the monitoring pipes 801. The moving plates 808 provide a platform for the installation and movement of the sensor module 813. Its sliding design inside the monitoring pipes 801 enables the sensor module 813 to be quickly removed from the monitoring pipes 801 for replacement, improving the efficiency of self-maintenance. At the same time, the cooperation between the fixing grooves 809 and the bidirectional lead screws 810 inside the moving plates 808 can stably fix the sensor module 813, preventing it from shaking and displacing during the monitoring process, ensuring the accuracy of the monitoring. The bottoms of the moving blocks 807 are rotatably connected to the bidirectional lead screws 810. The bidirectional lead screws 810 can accurately adjust the distance between the two stabilizing plates 812 to adapt to sensor modules 813 of different sizes. The design of its double-thread makes the movement of the stabilizing plates 812 more flexible and accurate, capable of firmly fixing the sensor module 813, improving the stability and reliability of the monitoring. Fixing grooves 809 are respectively formed in the interiors of the moving plates 808. The bidirectional lead screws 810 are rotatably connected to the interiors of the fixing grooves 809. Adjusting blocks 811 are symmetrically threadedly connected to the outer walls of the bidirectional lead screws 810. Stabilizing plates 812 are fixedly connected to the outer walls of the two adjusting blocks 811. The stabilizing plates 812 can provide stable support and fixation for the sensor module 813, preventing it from shaking and displacing during the monitoring process. The distance between the two stabilizing plates 812 can be adjusted by the bidirectional lead screws 810 to adapt to sensor modules 813 of different sizes, improving the versatility of the self-maintenance switching component 8.A sensor module 813 is placed between two stabilizing plates 812. An anti-slip layer is provided on the outer wall of the moving plate 808. The anti-slip layer can prevent the moving plate 808 from slipping when sliding in the monitoring tube 801, ensuring the stability and accuracy of movement. At the same time, the anti-slip layer can also reduce the wear between the moving plate 808 and the inner wall of the monitoring tube 801, extending the service life of the components.

[0041] The self-maintenance switching component 8 further includes a fixed rack 814 fixedly connected to the inner wall of the fixed box 802. The fixed rack 814 provides an object for meshing with the moving gear 817. When the sensor module 813 needs to be replaced, the moving block 807 drives the micro electric air cylinder 815, the connecting plate 816 and the moving gear 817 to move to the position of the fixed rack 814. Through the meshing of the fixed rack 814 and the moving gear 817, it can ensure that the bidirectional lead screw 810 stops stably at a specific position, thus facilitating the subsequent loosening and replacement operations of the sensor module 813. This design improves the stability and accuracy during the self-maintenance switching process, avoiding the unstable movement of the bidirectional lead screw 810 when the sensor module 813 with completed precision calibration is reinserted. The bottom of the moving block 807 is fixedly connected to the micro electric air cylinder 815. The telescopic shaft of the micro electric air cylinder 815 is fixedly connected to the connecting plate 816. The bottom of the connecting plate 816 is rotatably connected to the moving gear 817. The moving gear 817 is a component for the key step in the self-maintenance switching process. When meshing with the fixed rack 814, it can limit the rotation of the bidirectional lead screw 810, thus facilitating the loosening and replacement operations of the sensor module 813. The design of the moving gear 817 makes the self-maintenance switching process more automated and intelligent, reducing the need for manual intervention, improving the efficiency and reliability of self-maintenance. At the same time, the meshing method of the moving gear 817 and the fixed rack 814 also ensures that when the sensor module 813 is fixed, the bidirectional lead screw 810 can stably stay in a suitable position, providing a guarantee for subsequent operations. The connecting plate 816 and the moving gear 817 are both slidably connected to the outer wall of the bidirectional lead screw 810, and the fixed rack 814 and the moving gear 817 mesh with each other.

[0042] The self-maintaining switching component 8 further includes an active cavity 818 formed inside the monitoring tube 801. A first T-shaped rod 820 is slidably connected inside the active cavity 818. The first T-shaped rod 820 serves to connect the sealing plate 819 and the active cavity 818. When the moving plate 808 moves inside the monitoring tube 801, it can push the sealing plate 819 to move. The first T-shaped rod 820 can transmit the thrust of the moving plate 808 to the sealing plate 819, ensuring that the sealing plate 819 can accurately respond to the movement of the moving plate 808. At the same time, the T-shaped structure of the first T-shaped rod 820 can prevent it from accidentally disengaging from the active cavity 818, improving the reliability of the entire structure. One end of the first T-shaped rod 820 away from the monitoring tube 801 is fixedly connected to the sealing plate 819. When the sensor module 813 is moved out of the monitoring tube 801, the sealing plate 819 can seal the monitoring tube 801 to prevent the fluid inside the monitoring box 7 from leaking. When the moving plate 808 moves outwards, it pushes the sealing plate 819 to move. The sealing plate 819 can closely fit at the opening of the monitoring tube 801, ensuring the isolation of the monitoring tube 801 from the external environment. This sealing function can ensure the safety and stability of the unit during the replacement of the sensor module 813 and the process of putting the calibrated sensor in, avoiding faults and dangers caused by fluid leakage. A first compression spring 821 is sleeved on the outer wall of the first T-shaped rod 820. The first compression spring 821 provides a restoring force for the sealing plate 819. When the moving plate 808 moves outwards to push the sealing plate 819, the first compression spring 821 is compressed. When the moving plate 808 moves back to its original position, the elastic force of the first compression spring 821 can push the sealing plate 819 back to its initial position to achieve automatic sealing. This automatic return function improves the response speed and reliability of the sealing plate 819, reducing the need for manual operation. At the same time, the first compression spring 821 can also play a buffering role, reducing the impact force during the movement of the sealing plate 819 and extending the service life of the sealing plate 819 and the first T-shaped rod 820. Both ends of the first compression spring 821 are fixedly connected to the first T-shaped rod 820 and the active cavity 818 respectively.

[0043] The locking and stabilizing component 9 includes locking baffles 903 symmetrically and fixedly connected to the inner wall of the monitoring tube 801. The locking baffles 903 provide a locking position for the locking bumps 908. When the moving plate 808 drives the sensor module 813 to move to a suitable position inside the monitoring tube 801, the locking bumps 908 on the fixing plate 901 come into contact with and lock the locking baffles 903, so that the moving plate 808 and the sensor module 813 can be placed more stably in the monitoring tube 801. This locking function can prevent the sensor module 813 from shaking when the internal pressure of the compressor 3 changes, ensuring the accuracy and stability of monitoring. Fixing plates 901 are symmetrically and fixedly connected inside the moving plate 808. Activity slots 902 are respectively formed inside the fixing plates 901. Miniature electric air rods II 904 are fixedly connected to the inner walls of the activity slots 902. The miniature electric air rods II 904 provide power for the movement of the locking bumps 908. When locking or unlocking is required, the miniature electric air rods II 904 can precisely control the position of the moving rods 905, so as to realize the contact or separation between the locking bumps 908 and the locking baffles 903. This controllable operation mode makes the locking and stabilizing component 9 more flexible and efficient, and can accurately control the locking and unlocking processes according to actual needs. The telescopic shafts of the miniature electric air rods II 904 are fixedly connected to the moving rods 905. The moving rods 905 play a role in transmitting power and connecting various components. The moving rods 905 penetrate through the inside of the fixing plates 901. The power of the miniature electric air rods II 904 is transmitted to the locking bumps 908 and the unlocking retaining rings 909 through the moving rods 905 to realize the locking and unlocking operations. The design of the moving rods 905 enables these components to work together, improving the overall performance of the locking and stabilizing component 9. At the same time, the strength and stability of the moving rods 905 also ensure the reliability of the locking and unlocking processes. Slide plates 906 are fixedly connected to the outer walls of the moving rods 905. Compression springs II 907 are sleeved on the outer walls of the moving rods 905. The compression springs II 907 provide a restoring force for the moving rods 905. When the locking bumps 908 come into contact with the locking baffles 903, the compression springs II 907 are compressed. When unlocking is required, the elastic force of the compression springs II 907 can push the slide plates 906 and the moving rods 905 to separate the locking bumps 908 from the locking baffles 903. This automatic restoring function improves the operation convenience and reliability of the locking and stabilizing component 9. At the same time, the compression springs II 907 can also play a buffering role, reducing the impact force during the locking and unlocking processes and extending the service lives of the moving rods 905 and other components. Two ends of the compression springs II 907 are respectively fixedly connected to the slide plates 906 and the activity slots 902. Locking bumps 908 are fixedly connected to one ends of the moving rods 905 far away from the miniature electric air rods II 904. The locking bumps 908 are key components for realizing the locking function of the locking and stabilizing component 9. When the moving plate 808 drives the sensor module 813 to move to a fixed position inside the monitoring tube 801, the locking bumps 908 come into contact with and lock the locking baffles 903.Thus, the moving plate 808 and the sensor module 813 can be placed more stably in the monitoring tube 801. This locking function can prevent the sensor module 813 from shaking when the internal pressure of the compressor 3 changes, ensuring the accuracy and stability of the monitoring. The outer wall of the moving rod 905 is slidably connected with an unlocking retaining ring 909, and the unlocking retaining ring 909 plays an auxiliary role during the unlocking process. When unlocking is required, the micro electric air rod two 904 pushes the moving rod 905 to separate the locking lug 908 from the locking baffle 903. At the same time, the unlocking retaining ring 909 can also prevent the moving rod 905 from moving excessively. This design improves the operation accuracy and reliability of the locking and stabilizing assembly 9. At the same time, the presence of the unlocking retaining ring 909 also makes the unlocking process smoother and more stable.

[0044] The locking stabilization component 9 also includes a mounting groove 911 and a locking slot 910 provided inside the locking baffle 903. The locking slot 910 provides a specific insertion position for the locking protrusion 908. When the locking protrusion 908 enters the locking slot 910, the movable plate 808 and the locking baffle 903 can be quickly locked. This design ensures the stable placement of the sensor module 813 in the monitoring tube 801, prevents shaking caused by internal pressure fluctuations of the compressor 3, and thus ensures the accuracy and stability of monitoring. The locking protrusion 908 is slidably connected to the inside of the locking slot 910, and the inside of the mounting groove 911 is fixedly connected to the mounting plate 912, and the inside of the mounting plate 912 is slidably connected to The second T-shaped rod 913 serves to connect the mounting plate 912 and the locking bevel 915. When the locking protrusion 908 enters the locking slot 910, the locking bevel 915 is pushed to move. The second T-shaped rod 913 can transmit the movement of the locking bevel 915 to the mounting plate 912. At the same time, the locking bevel 915 can also be reset under the action of the compression spring three 914. This design makes the movement of the locking bevel 915 more stable and reliable, and improves the performance of the locking stabilization component 9. The end of the T-shaped rod 913 away from the mounting plate 912 is fixedly connected with the locking bevel 915. The locking bevel 915 is an important component for realizing the locking function of the locking stabilization component 9. When the locking protrusion 908 enters the locking slot 910, the locking bevel 915 is pushed to move. When entering the locking slot 910, the locking bevel 915 contracts under the action of the thrust, and then resets and is inserted between the locking protrusion 908 and the unlocking baffle ring 909 under the action of the compression spring three 914, and its plane position conflicts with the plane of the locking protrusion 908, thereby playing an effective blocking role, thereby achieving rapid locking between the fixed plate 901 and the locking baffle 903. This locking method improves the stability of the moving plate 808 and the sensor module 813 in the monitoring tube 801, ensuring stable monitoring of the internal temperature and pressure of the compressor 3. The outer wall of the T-shaped rod two 913 is sleeved with a compression spring three 914, and the compression spring three 914 provides a restoring force for the locking bevel 915. When the locking protrusion 908 is locked, the compression spring three 914 will be locked. When 08 enters the locking slot 910, the locking bevel 915 is pushed to compress the compression spring three 914. When the locking protrusion 908 is fully entered, the elastic force of the compression spring three 914 pushes the locking bevel 915 to reset, so that it is inserted in the middle position between the locking protrusion 908 and the unlocking retaining ring 909, thereby achieving an effective blocking effect. This automatic return function improves the operational convenience and reliability of the locking stabilization component 9. At the same time, the compression spring three 914 can also play a buffering role, reducing the impact force during the locking process. The two ends of the compression spring three 914 are fixedly connected to the mounting slot 911 and the mounting plate 912 respectively, and the locking bevel 915 is slidably connected to the inside of the locking slot 910 and the mounting slot 911.

[0045] Reference Figure 9 and Figure 10As shown, a limiting rib 11 is fixedly connected to the outer wall of the bidirectional lead screw 810, a limiting sliding groove 12 is formed inside the moving gear 817, the limiting rib 11 and the limiting sliding groove 12 cooperate with each other, and the shapes of the limiting rib 11 and the limiting sliding groove 12 are both cross-shaped.

[0046] Referring to Figure 5 and Figure 9 As shown, a trigger alarm 10 is fixedly connected to the outer wall of the sensor module 813.

[0047] Referring to Figure 5 and Figure 9 As shown, fixing ports 13 are symmetrically formed on the outer wall of the moving plate 808, and the adjusting blocks 811 are all slidably connected inside the fixing ports 13.

[0048] Referring to Figure 4 As shown, limiting ports 14 are formed on the surfaces where the fixed box 802 and the monitoring pipe 801 are in contact, and the bidirectional lead screw 810 and the first micro electric air rod 815 are both slidably connected inside the limiting ports 14.

[0049] Combined with the above preferred embodiments, the working principle of the present invention is as follows:

[0050] In the initial state, the air source heat pump unit operates normally. The sensor module 813 is placed between two stabilizing plates 812 and is located inside the monitoring pipe 801 to monitor parameters such as the temperature and pressure in the inlet and outlet pipes of the compressor 3. The moving plate 808 is locked with the locking baffle 903 on the inner wall of the monitoring pipe 801 through the locking and stabilizing assembly 9 to ensure the stable placement of the sensor module 813. The bimetallic strip 803 is within the normal temperature range and does not deform, and does not contact the trigger alarm 10. Components such as the micro motor 804, the first micro electric air rod 815, and the second micro electric air rod 904 are in the unstarted state.

[0051] During operation:

[0052] When the compressor 3 is working, according to the first law of thermodynamics, the external work is done on the gas during the compression process of the compressor 3, increasing the internal energy of the gas. In an ideal situation, the increase in internal energy is mainly manifested as an increase in temperature. For example, for an ideal gas, in an isentropic compression process, the relationship between temperature and pressure can be expressed by the formula T 2 / T 1 =(P 2 / P 1 ) (k-1) / k where T 1 and T 2 are the temperatures before and after compression respectively, and P 1 and P 2They are the pressures before and after compression respectively, and k is the specific heat ratio of the gas. This indicates that the pressure increases. Therefore, during the compression of the gas by the compressor 3, while the temperature inside the compressor 3 rises, the pressure inside the compressor 3 will also increase accordingly. The temperature deformation range of the bimetallic strip 803 will be affected by its measured temperature range. In different temperature ranges, the expansion coefficient and deformation amount of the bimetallic strip 803 will also change. Therefore, in different temperature ranges, the temperature deformation range of the bimetallic strip 803 will also be different. Since the degree of deformation of the bimetallic strip 803 within the temperature range value (between 70 degrees Celsius and 110 degrees Celsius) is in a non-contact state with the trigger alarm 10, after the temperature received by the bimetallic strip 803 exceeds the set range value (between 70 degrees Celsius and 110 degrees Celsius), the degree of bending deformation of the bimetallic strip 803 is greater, enabling the bimetallic strip 803 to be in a contact state with the trigger alarm 10. The temperature and pressure in the compressor 3 are monitored through the sensor module 813 inside the monitoring tube 801. The temperature and pressure inside the compressor 3 are preliminarily monitored through the sensor module 813. When the temperature and pressure inside the compressor 3 exceed the range value, under the action of a temperature exceeding the range value on the bimetallic strip 803, the bimetallic strip 803 is heated and deformed and bent, and the bending position of the bimetallic strip 803 directly triggers the trigger alarm 10. The trigger alarm 10 issues an alarm about the abnormal temperature inside the compressor 3, which is convenient for prompting the staff that there is an abnormal situation inside the equipment and facilitating its quick repair.

[0053] When the alarm 10 is triggered, an alarm is issued and a signal is sent to the controller. The controller electrically controls the micro-motor 804 to drive the adjusting screw rod 805 fixedly connected thereto to rotate. Through the thread of the adjusting screw rod 805, the moving block 807 slides. The sliding of the moving block 807 drives the bidirectional screw rod 810 rotatably connected thereto to move. The movement of the bidirectional screw rod 810 drives the moving plate 808 on the outer wall to move synchronously. The sensor module 813 clamped on the outside of the moving plate 808 is synchronously moved out of the inside of the monitoring tube 801. Since the outer wall of the moving plate 808 is provided with an anti-slip layer, it can prevent the moving plate 808 from rotating during the movement of the moving plate 808. When the moving plate 808 moves to fit with the sealing plate 819, the controller electrically controls the telescopic shaft of the micro-electric air rod 815 to extend, driving the connecting plate 816 fixedly connected thereto to move downward. The downward movement of the connecting plate 816 drives the moving gear 817 rotatably connected thereto to move downward synchronously to the meshing state with the fixed rack 814. When the moving plate 808 drives the sensor module 813 to continuously slide outward, the moving gear 817 rotates self-driven under the action of the teeth of the fixed rack 814. The self-rotation of the moving gear 817 drives the bidirectional screw rod 810 to rotate synchronously through the blocking effect generated by the cross shape of the trigger alarm 10 and the limit rib 11. When the bidirectional screw rod 810 rotates, the two adjusting blocks 811 move in the direction away from each other through the double-thread of the bidirectional screw rod 810. The movement of the adjusting block 811 drives the stabilizing plate 812 fixedly connected thereto to move, thereby loosening the sensor module 813. At this time, the loosened sensor module 813 has moved out of the inside of the monitoring tube 801, and the sensor module 813 moves out through the edge space of the monitoring tube 801. The staff places the sensor module 813 with the accuracy calibration completed between the two stabilizing plates 812, so as to be able to quickly monitor the abnormal temperature in the compressor 3, avoid the situation that the overall equipment is damaged due to the abnormal temperature inside the compressor 3, and achieve an effective self-maintenance effect.

[0054] Meanwhile, while triggering the alarm of the alarm 10, the telescopic shaft of the micro electric air rod two 904 is electrically controlled by the controller to extend and push the moving rod 905 fixedly connected thereto to move into the locking slot 910. The moving rod 905 drives the sliding plate 906 and the locking projection 908 fixedly connected thereto to move synchronously. At this time, a fixed ring is provided on the outer wall of the moving rod 905 to block the movement of the unlocking blocking ring 909. During the synchronous movement of the moving rod 905, the locking projection 908 and the unlocking blocking ring 909 to the innermost part of the locking slot 910, the inclined surface of the locking inclined block 915 first contacts the inclined surface of the unlocking blocking ring 909. Under the thrust of the unlocking blocking ring 909, the locking inclined block 915 contracts again into the installation groove 911. The contraction of the locking inclined block 915 drives the T-shaped rod two 913 fixedly connected thereto to slide in the mounting plate 912, and the compression spring three 914 is compressed when the T-shaped rod two 913 moves. At this time, there is still a certain distance between the unlocking blocking ring 909 and the locking projection 908. When the locking inclined block 915 moves between the unlocking blocking ring 909 and the fixed ring, the moving rod 905, the sliding plate 906, the locking projection 908 and the unlocking blocking ring 909 can be pulled back by the resilience of the compression spring two 907. The flat position of the locking inclined block 915 abuts against the inclined surface on the other side of the unlocking blocking ring 909. The blocking force of the locking inclined block 915 enables the unlocking blocking ring 909 to move and fit with the locking projection 908. The locking projection 908 and the unlocking blocking ring 909 are pulled out of the locking slot 910 by the pulling force of the moving rod 905. At this time, the flat surface of the locking inclined block 915 contracts again under the action of the inclined surface of the unlocking blocking ring 909, so that the locking projection 908 and the unlocking blocking ring 909 can be removed from the locking slot 910, realizing the unlocking state between the fixing plate 901 and the locking baffle 903. After the unlocking of the fixing plate 901 and the locking baffle 903 is completed, the moving plate 808 and the sensor module 813 can be moved out of the monitoring tube 801 by the moving force of the moving block 807, and the sensor module 813 with the precision calibration completed can be put back again. Through the locking effect between the fixing plate 901 and the locking baffle 903, the stable effect of the moving plate 808 inside the monitoring tube 801 can be further increased, avoiding the position movement of the moving plate 808 and the sensor module 813 during the increase of the internal pressure of the monitoring tube 801, so as to effectively reduce the situation that the monitoring accuracy of the sensor module 813 is different due to the position movement of the moving plate 808.

[0055] After the sensor module 813 with completed precision calibration is placed inside the monitoring tube 801 again, the compression resilience of the first compression spring 821 can tightly press the sealing plate 819 against the opening of the monitoring tube 801. The blocking of the sealing plate 819 can prevent external dust and air from entering the inside of the monitoring tube 801, and through the sealing plate 819, it can further prevent the leakage of the temperature and pressure inside the compressor 3. Since the size of the moving plate 808 is the same as that of the monitoring tube 801, the double sealing of the monitoring tube 801 can be enhanced by the moving plate 808 and the sealing plate 819. Through the locking between the fixing plate 901 and the locking baffle 903, the position of the moving plate 808 can be further stably restricted to avoid the effect of position shaking caused by pressure. During the self-maintenance and replacement process of the sensor module 813, the solenoid valve inside the monitoring tube 801 can close the connection position between the monitoring tube 801 and the monitoring box 7. Therefore, in both the normal monitoring state and the self-maintenance state, the temperature and pressure inside the compressor 3 will not leak, which can further ensure the airtightness inside the compressor 3.

[0056] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including the said element.

[0057] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A self-maintainable air source heat pump unit, comprising a cabinet (1) and a fan (2), wherein the fan (2) is fixedly connected to the outer wall of the cabinet (1), and the interior of the cabinet (1) is respectively fixedly connected to a compressor (3), a heat exchanger (4) and an evaporator, the outer wall and the top of the compressor (3) are both fixedly connected to a monitoring box (7), and the two sides of the monitoring box (7) are respectively fixedly connected to a pipe 1 (5) and a pipe 2 (6), the end of the pipe 2 (6) away from the compressor (3) is fixedly connected to the evaporator, and the end of the pipe 1 (5) away from the compressor (3) is fixedly connected to the heat exchanger (4), characterized in that: The invention also comprises: a self-maintenance switching assembly (8) for quickly switching when the sensor is damaged to improve the self-maintenance effect; and a locking stabilization assembly (9) for increasing the placement stabilization effect after the sensor is replaced, wherein the self-maintenance switching assembly (8) comprises monitoring tubes (801) fixedly connected to the outer wall of the monitoring box (7), the outer walls of the monitoring tubes (801) are fixedly connected to the fixing box (802), the inner walls of the monitoring tubes (801) are installed with bimetallic strips (803), the outer walls of the fixing box (802) are fixedly connected to the micro motors (804), and the output shafts of the micro motors (804) are fixedly connected to the adjusting screws ( 805), the interior of the fixed box (802) is fixedly connected to a limit rod (806), the outer wall of the adjusting screw rod (805) is threadedly connected to a moving block (807), and the moving block (807) is slidably connected to the outer wall of the limit rod (806), the interior of the monitoring tube (801) is slidably connected to a moving plate (808), the bottom of the moving block (807) is rotatably connected to a bidirectional screw rod (810), the interior of the moving plate (808) is provided with a fixed groove (809), the bidirectional screw rod (810) is rotatably connected to the interior of the fixed groove (809), and the outer wall of the bidirectional screw rod (810) is symmetrical. The movable plate (808) is threadedly connected with an adjustment block (811), the outer walls of the two adjustment blocks (811) are fixedly connected with a stabilizing plate (812), a sensor module (813) is placed between the two stabilizing plates (812), the outer wall of the movable plate (808) is provided with an anti-slip layer, the locking stabilizing component (9) comprises a locking baffle (903) symmetrically fixedly connected to the inner wall of the monitoring tube (801), the interior of the movable plate (808) is symmetrically fixedly connected with a fixing plate (901), the interior of the fixing plate (901) is provided with a movable groove (902), and the inner wall of the movable groove (902) is fixedly connected with a micro electric gas rod (903). 4), the telescopic shaft of the second micro electric pneumatic rod (904) is fixedly connected to a moving rod (905), the moving rod (905) passes through the interior of the fixed plate (901), the outer wall of the moving rod (905) is fixedly connected to a slide plate (906), the outer wall of the moving rod (905) is sleeved with a second compression spring (907), the two ends of the second compression spring (907) are respectively fixedly connected to the slide plate (906) and the movable groove (902), the end of the moving rod (905) away from the second micro electric pneumatic rod (904) is fixedly connected to a locking protrusion (908), and the outer wall of the moving rod (905) is slidably connected to an unlocking retaining ring (909).

2. The self-maintainable air source heat pump unit according to claim 1, characterized in that: The self-maintenance switching assembly (8) also includes a fixed rack (814) fixedly connected to the inner wall of the fixed box (802); the bottom of the moving block (807) is fixedly connected to a micro electric pneumatic rod (815); the telescopic shaft of the micro electric pneumatic rod (815) is fixedly connected to a connecting plate (816); the bottom of the connecting plate (816) is rotatably connected to a moving gear (817); the connecting plate (816) and the moving gear (817) are both slidably connected to the outer wall of the bidirectional screw (810); and the fixed rack (814) and the moving gear (817) are meshed with each other.

3. The self-maintainable air source heat pump unit according to claim 2, characterized in that: The self-maintenance switching assembly (8) further comprises an active chamber (818) provided inside the monitoring tube (801); a T-shaped rod (820) is slidably connected to the interior of the active chamber (818); an end of the T-shaped rod (820) away from the monitoring tube (801) is fixedly connected to a sealing plate (819); a compression spring (821) is sleeved on the outer wall of the T-shaped rod (820); and two ends of the compression spring (821) are respectively fixedly connected to the T-shaped rod (820) and the active chamber (818).

4. The self-maintainable air source heat pump unit according to claim 1, characterized in that: The locking stabilization assembly (9) includes a locking baffle (903) symmetrically fixedly connected to the inner wall of the monitoring tube (801); the interior of the movable plate (808) is symmetrically fixedly connected to the fixed plate (901); the interior of the fixed plate (901) is provided with a movable groove (902); the inner wall of the movable groove (902) is fixedly connected to a second micro-electric gas rod (904); the telescopic shaft of the second micro-electric gas rod (904) is fixedly connected to a movable rod (905); the movable rod (905) penetrates Inside the fixed plate (901), the outer wall of the movable rod (905) is fixedly connected to a slide plate (906), the outer wall of the movable rod (905) is sleeved with a second compression spring (907), the two ends of the second compression spring (907) are respectively fixedly connected to the slide plate (906) and the movable groove (902), the end of the movable rod (905) away from the second micro-electric gas rod (904) is fixedly connected to a locking protrusion (908), and the outer wall of the movable rod (905) is slidably connected to an unlocking retaining ring (909).

5. The self-maintainable air source heat pump unit according to claim 2, characterized in that: The outer wall of the bidirectional screw rod (810) is fixedly connected to a limiting convex strip (11), and the interior of the movable gear (817) is provided with a limiting sliding groove (12). The limiting convex strip (11) and the limiting sliding groove (12) cooperate with each other, and the limiting convex strip (11) and the limiting sliding groove (12) are both in the shape of a cross.

6. The self-maintainable air source heat pump unit according to claim 1, characterized in that: A trigger alarm (10) is fixedly connected to the outer wall of the sensor module (813).

7. The self-maintainable air source heat pump unit according to claim 1, characterized in that: The outer wall of the movable plate (808) is symmetrically provided with fixing openings (13), and the adjustment blocks (811) are slidably connected inside the fixing openings (13).

8. The self-maintainable air source heat pump unit according to claim 1, characterized in that: The surfaces of the fixing box (802) and the monitoring tube (801) that are in contact with each other are provided with a limit opening (14), and the bidirectional screw rod (810) and the micro electric gas rod (815) are both slidably connected inside the limit opening (14).

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