Micro switch assembly, temperature control valve and air conditioning system

Abstract

The utility model provides a kind of microswitch assembly, temperature control valve and air conditioning system, it is related to microswitch technical field, solve the technical problems of microswitch false triggering and not triggering and the mechanical life of microswitch and the short replacement interval time generated thereby are reduced, while the probability that microswitch fails due to contact oxidation or poor contact and other reasons can be effectively reduced.The microswitch assembly includes microswitch body and mounting bracket for fixing microswitch body;Microswitch body uses double-cylinder contact line contact force piece to effectively improve reliability;Adjusting mounting hole is provided on mounting bracket.The utility model can realize the fine adjustment of microswitch body installation position through adjusting mounting hole, to compensate its action position deviation, ensure that microswitch push rod contact is triggered accurately in target position, avoid overvoltage or displacement phenomenon, improve signal feedback accuracy and working reliability, prolong service life.

Description

Technical Field

[0001] This utility model relates to the field of micro switch technology, and in particular to a micro switch assembly capable of providing high-precision feedback of position signals, a temperature control valve, and an aircraft cabin air conditioning system including the same. Background Technology

[0002] Microswitches are small, compact, sensitive, and fast mechanical switches. However, due to their compact structure and small internal components such as springs, the consistency of their actuation position (the position where the external contact of the microswitch push rod is pressed to the point where the switch just separates) is poor. In some cases, the deviation from the actuation position can even exceed the overtravel (the distance between the actuated position and the limit position required to maintain the switch's lifespan) and the travel (the distance between the free position and the actuated position of the external contact of the microswitch push rod). This often results in microswitches being over-voltaged or failing to trigger during actual use, reducing their mechanical lifespan and replacement intervals.

[0003] The applicant has discovered that the prior art has at least the following technical problems: the temperature control valve with thermal bypass temperature regulation function in the aircraft cabin air conditioning system has two microswitches to monitor whether the valve plate has turned to the fully open or fully closed position. However, due to the aforementioned problems with the microswitches, the feedback of the fully open or fully closed position of the temperature control valve plate is inaccurate, which will affect the cabin temperature regulation. Utility Model Content

[0004] The purpose of this invention is to provide a microswitch assembly capable of providing high-precision feedback of position signals, a temperature control valve, and an aircraft cabin air conditioning system including the same, in order to solve the technical problems of false triggering and non-triggering of microswitches in the prior art, and the resulting reduction in the mechanical life of microswitches and short replacement intervals.

[0005] To achieve the above objectives, the present invention provides the following technical solution: This utility model provides a micro switch assembly, including a micro switch body and a mounting bracket for fixing the micro switch body; the mounting bracket is provided with an adjustment mounting hole for adjusting the installation position according to the deviation of the micro switch body's operating position.

[0006] This invention uses a mounting bracket to install the micro switch body. By adjusting the mounting holes, the installation position of the micro switch body can be finely adjusted, thereby compensating for deviations in its operating position, ensuring that the micro switch push rod contact is accurately triggered at the target position, avoiding overvoltage or misalignment, improving signal feedback accuracy and operational reliability, and extending service life.

[0007] Based on the above technical solution, the present invention can be further improved as follows.

[0008] As a further improvement of this utility model, the number of adjustment mounting holes is two, which are arranged side by side at intervals.

[0009] By setting two adjustment mounting holes, the micro switch body can be stably installed, while avoiding positional deviation caused by single-point fixing. This further improves adjustment accuracy and structural stability, ensuring that the micro switch can still maintain accurate triggering under frequent operation. It effectively guarantees reliable feedback of the fully open and fully closed position signal of the temperature control valve plate, enhancing the overall control accuracy and operational safety of the aircraft cabin air conditioning system.

[0010] As a further improvement of this utility model, the adjustment mounting hole is an elongated waist-shaped hole, including a straight section and an arc section.

[0011] The smooth connection between the straight and curved sections facilitates multi-dimensional adjustment of the micro switch body along its length, further improving installation adaptability and positioning accuracy. This ensures that the contact position between the push rod contact and the valve plate transmission component is always within the optimal trigger range, effectively preventing malfunction or excessive pressing due to assembly errors, and enhancing the overall reliability and durability of the component.

[0012] As a further improvement of this utility model, the length of the straight section is not less than 2δ, where δ is the position deviation of the micro switch body.

[0013] The above structural design ensures that the adjustment range covers the maximum expected deviation, thereby effectively compensating for manufacturing and installation tolerances during assembly.

[0014] As a further improvement of this utility model, one side of the mounting bracket is a contact limiting side, and the distance between the center of the adjusting mounting hole and the contact limiting side is equal to the operating position distance L of the micro switch body.

[0015] The above structural design ensures precise matching of the relative positions of the push rod contact and the target contact component after the microswitch body is installed, avoiding premature or delayed triggering due to installation deviations. The contact limiting edge, serving as an installation reference surface, effectively constrains the microswitch's displacement freedom during adjustment, improving installation consistency and repeatability, further guaranteeing the accuracy and stability of the temperature control valve plate position signal feedback, and meeting the high reliability and long-cycle operation requirements of aircraft cabin air conditioning systems. Furthermore, the redundant design of the microswitch's force-bearing plate and conductor structure effectively prevents the microswitch from failing to conduct properly due to common failures such as oxidation and poor contact, greatly improving the microswitch's reliability.

[0016] As a further improvement of this utility model, the mounting bracket is provided with a size scale line corresponding to the outer position of the straight section.

[0017] By setting dimensional scale lines, installers can intuitively read the adjustment displacement of the micro switch body, achieving precise positioning and rapid assembly, effectively reducing human error, and improving assembly and adjustment efficiency and consistency.

[0018] As a further improvement of this utility model, the micro switch body is provided with an indicator line for indicating the center position of the mounting hole.

[0019] This invention utilizes indicator lines that align with the dimensional scale on the mounting bracket to create a clear visual alignment reference. This facilitates quick confirmation during installation that the microswitch's adjustment position is within the allowable deviation range. The indicator lines, arranged longitudinally along the surface of the microswitch's housing, are made of a high-temperature and wear-resistant marking material, ensuring clear identification even in complex environments and maintaining long-term marking effectiveness. The synergistic effect of the indicator lines and scale further enhances installation accuracy and operability, ensuring accurate and stable triggering timing of the push rod contact throughout the valve plate's movement. This meets the technical requirements of aircraft cabin air conditioning systems for highly reliable feedback of critical sensor signals.

[0020] As a further improvement of this utility model, it also includes an upper gasket, a lower gasket, and a connector; the upper gasket is placed on the top of the micro switch body, the lower gasket is placed on the bottom of the mounting bracket, and the connector is sequentially inserted through the upper gasket, the micro switch body, the mounting bracket, and the lower gasket.

[0021] The use of upper and lower shims effectively compensates for assembly gaps, reduces preload fluctuations caused by mechanical vibration or thermal expansion and contraction, and improves the overall structural stability and durability. The upper and lower shims are made of a metal material with stable elastic properties, exhibiting excellent creep resistance and springback characteristics, ensuring that connection reliability does not decrease during long-term service. The connector, in conjunction with the shims, achieves uniform compression, preventing concentrated force on the microswitch body that could lead to housing deformation or internal contact displacement, thereby ensuring the continuity and accuracy of signal feedback and meeting the requirements for operation under high-intensity vibration and wide temperature ranges in aerospace environments.

[0022] As a further improvement of this utility model, the micro switch body includes a housing and a push rod, a force-receiving plate, an elastic element, a normally open conductive block, and a normally closed conductive block disposed within the housing; wherein: The elastic element abuts against the middle of the force-bearing plate, so that the force-bearing plate forms a seesaw structure; One end of the force-bearing plate is provided with a double cylindrical moving contact; The normally open conductive block and the normally closed conductive block are respectively disposed on both sides of the double cylindrical moving contact. The other end of the force-bearing plate abuts against the push rod.

[0023] The force-bearing plate of this invention adopts a double-contact single-pole line contact form (redundant design) and has a certain ability to resist external interference. It can effectively avoid the failure of micro switches to conduct normally due to common failure reasons such as oxidation and poor contact, and greatly improve the reliability of micro switches.

[0024] As a further improvement of this utility model, the double cylindrical moving contact includes a connecting rod, and a first cylindrical contact and a second cylindrical contact respectively connected to both ends of the connecting rod.

[0025] As a further improvement of this utility model, it also includes an elastic buffer region disposed between the force-bearing plate and the double cylindrical moving contact.

[0026] By incorporating an elastic buffer zone, the impact energy generated during the push rod's movement is further absorbed, reducing the bounce amplitude of the contact at the moment of contact, thereby lowering the risk of arc erosion and extending contact life. This buffer zone is integrally molded with the force-bearing plate, ensuring a stable force transmission path and sensitive response.

[0027] As a further improvement of this utility model, the elastic buffer area includes an elastic rod and a buffer opening; wherein: The width and thickness of the elastic rod are both smaller than the width and thickness of the force-bearing plate; The number of buffer openings is at least one, and they are spaced apart along the length of the elastic rod.

[0028] By incorporating a buffer opening and thinning and narrowing the elastic rod, the local stiffness of the elastic rod is significantly reduced, enhancing its flexible deformation capacity and thus more effectively absorbing impact loads. The location of the buffer opening corresponds to the peak bending moment zone of the elastic rod, optimizing stress distribution and preventing fatigue concentration. When the push rod is subjected to external force, causing the force-bearing plate to swing, the elastic rod undergoes a slight elastic buckling at the buffer opening. This, combined with the overall seesaw motion, ensures that the double cylindrical moving contacts smoothly contact the corresponding contact points, further suppressing contact bounce.

[0029] As a further improvement of this utility model, the side of the normally open conductive block that contacts the double cylindrical moving contact has a V-shaped inclined surface structure; and / or, the side of the normally closed conductive block that contacts the double cylindrical moving contact has a V-shaped inclined surface structure.

[0030] The present invention provides a temperature control valve, including the micro switch assembly.

[0031] The present invention provides an air conditioning system, including the temperature control valve. Attached Figure Description

[0032] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0033] Figure 1 This is an exploded view of the micro switch assembly of this utility model; Figure 2 This is a three-dimensional structural schematic diagram (I) of the micro switch assembly of this utility model; Figure 3 This is a three-dimensional structural schematic diagram (II) of the micro switch assembly of this utility model; Figure 4 This is a top view (a) of the micro switch body in the micro switch assembly of this utility model. Figure 5 This is a top view (II) of the micro switch body in the micro switch assembly of this utility model. Figure 6 This is a side view of the micro switch body in the micro switch assembly of this utility model; Figure 7 This is a top view of the mounting bracket in the micro switch assembly of this utility model; Figure 8 This is a schematic diagram of the internal structure of the micro switch body in the micro switch assembly of this utility model; Figure 9 This is a top view of the micro switch assembly of this utility model; Figure 10 This is a side view of the micro switch assembly of this utility model; Figure 11 This is a three-dimensional structural diagram of the force-bearing plate in the micro switch assembly of this utility model; Figure 12 This is a schematic diagram of the structure of the normally closed end of the force-bearing plate in the micro switch assembly of this utility model when it is turned on; Figure 13 This is a schematic diagram of the structure of the micro switch assembly of this utility model when the normally open end of the force-bearing plate is conducting.

[0034] In the picture: 1. Microswitch body; 11. Mounting holes; 12. Indicator line; 13. Push rod; 14. Load-bearing plate; 141. Stress-bearing area; 142. Spring mounting groove; 143. Elastic buffer zone; 144. Double cylindrical moving contact; 15. Common terminal conductive block; 16. Normally open conductive block; 17. Normally closed conductive block; 18. Spring; 2. Install the bracket; 21. Adjust the mounting holes; 211. Straight section; 212. Arc segment; 22. Dimension scale lines; 23. Contact limiting edge; 3. First fastening screw; 4. Second fastening screw; 5. Install the gasket; 6. Lower gasket; 7. First nut; 8. Second nut. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0036] Example 1: like Figures 1-10 As shown, this utility model provides a micro switch assembly, including a micro switch body 1 and a mounting bracket 2 for fixing the micro switch body 1; it should be noted that the mounting bracket 2 is a metal mounting bracket 2; in order to facilitate the adjustment of the position of the micro switch assembly, in this embodiment, the mounting bracket 2 is provided with an adjustment mounting hole 21, which is used to adjust the installation position according to the deviation of the micro switch body 1's operating position.

[0037] This utility model uses a mounting bracket 2 to install the micro switch body 1. By adjusting the mounting hole 21, the installation position of the micro switch body 1 can be finely adjusted, thereby compensating for its action position deviation, ensuring that the contact of the micro switch push rod 13 is accurately triggered at the target position, avoiding overvoltage or misalignment, improving signal feedback accuracy and working reliability, and extending service life.

[0038] As an optional embodiment of this utility model, the number of adjustment mounting holes 21 is two, arranged side by side with intervals. Of course, the micro switch body 1 also has two mounting holes 11, corresponding one-to-one with the two adjustment mounting holes 21. The first fastening screw 3 and the second fastening screw 4 pass through the mounting holes 11 and the adjustment mounting holes 21 respectively, and are used in conjunction with the upper washer 5, lower washer 6, first nut 7, and second nut 8 to achieve an adjustable fixed connection. When the micro switch body 1 needs to be adjusted, the screws are loosened, and the micro switch body 1 is moved along the straight section 211 and the arc section 212 of the adjustment mounting hole 21. The displacement is precisely adjusted according to the dimension scale line 22 to ensure accurate alignment of the push rod 13 with the target contact point. After adjustment, the screws are tightened again to fix the micro switch body 1 on the mounting bracket 2, maintaining a stable position.

[0039] By setting two adjustment mounting holes 21, the micro switch body 1 can be stably installed, while avoiding positional deviation caused by single-point fixing, further improving adjustment accuracy and structural stability, ensuring that the micro switch can still maintain accurate triggering under frequent operation, effectively ensuring reliable feedback of the fully open and fully closed position signal of the temperature control valve plate, and enhancing the overall control accuracy and operational safety of the aircraft cabin air conditioning system.

[0040] As an optional embodiment of this utility model, the adjustment mounting hole 21 is an elongated waist-shaped hole, including a straight section 211 and an arc section 212.

[0041] The straight section 211 and the arc section 212 are smoothly connected, which facilitates multi-dimensional adjustment of the micro switch body 1 along the length direction, further improving the installation adaptability and positioning accuracy, ensuring that the contact position of the push rod 13 contact and the valve plate transmission component is always in the optimal trigger range, effectively avoiding action failure or excessive pressing due to assembly errors, and improving the overall reliability and durability of the component.

[0042] It should be noted that in this embodiment, the length of the straight section 211 is not less than 2δ, where δ is the deviation of the operating position of the micro switch body 1. Furthermore, the deviation of the operating position is caused by factors such as the inherent tolerances of the micro switch body 1 parts and errors during the production and assembly process. Therefore, even micro switches manufactured according to the same drawing will have different operating positions; some are exactly L, some are larger (L+δ), and some are smaller (L-δ). Especially in mass production, the deviation of the operating position of micro switches (i.e., inconsistent "trigger points") is a common pain point in the industry. The following three factors mainly have a significant impact on the operating position of micro switches: 1. The inherent tolerance of the spring 18 mechanism (the root cause): The core of the micro switch is the spring 18 linkage mechanism (force plate 14 + spring 18). The elastic coefficient (k value) of spring 18 has manufacturing tolerance (usually ±5%-10%). 2. Assembly error of force-bearing plate 14 (key amplification factor): Since force-bearing plate 14 acts as a lever, its assembly error in the fixed position inside the switch will be amplified by the lever effect. 3. Environmental and assembly stress (objective reasons), screw tightening (displacement of internal stress plate 14 and other parts) and temperature differences in different regions (thermal expansion and contraction of internal parts) will all affect the movement position.

[0043] In summary, it is difficult to eliminate this deviation directly from the microswitch itself; it can only be tolerated through component system design. Microswitches are secured by tiny circular holes, resulting in limited adjustment space during assembly. If the actuation position deviation is large, the gap between the bolt and the hole alone is insufficient for adjustment, and using small bolts for tightening also reduces reliability. Therefore, using an oblong hole adjustment mounting structure can effectively absorb the actuation position deviation between individual microswitches. By providing ±δ adjustable redundancy in the mounting direction, it ensures that even with L+δ or L-δ limit deviations, the push rod contact position still falls within the ideal triggering range, avoiding false triggering or non-triggering. Through this structural design, the adjustment range is ensured to cover the maximum expected deviation, thereby effectively compensating for manufacturing and installation tolerances during assembly.

[0044] As a further improvement of this utility model, one side of the mounting bracket 2 is a contact limiting edge 23, and the distance between the center of the mounting hole 21 and the contact limiting edge 23 is equal to the standard operating position distance L of the micro switch body 1.

[0045] The above structural design ensures precise matching of the relative positions of the push rod 13 contact and the target contact component after the microswitch body 1 is installed, avoiding premature or delayed triggering due to installation deviations, as well as triggering outside the overtravel area. The contact limiting edge 23, serving as the installation reference surface, effectively constrains the displacement freedom of the microswitch during adjustment, improving installation consistency and repeatability, further ensuring the accuracy and stability of the temperature control valve plate position signal feedback, and meeting the high reliability and long-cycle operation requirements of aircraft cabin air conditioning systems.

[0046] As a further improvement of this utility model, a size scale line 22 is provided on the mounting bracket 2 corresponding to the outer position of the straight section 211.

[0047] By setting the size scale line 22, installers can intuitively read the adjustment displacement of the micro switch body 1, achieving precise positioning and rapid assembly, effectively reducing human error, and improving assembly and adjustment efficiency and consistency.

[0048] As a further improvement of this utility model, the micro switch body 1 is provided with an indicator line 12 for indicating the center position of the mounting hole 11.

[0049] This invention utilizes an indicator line 12, which aligns with the dimensional scale on the mounting bracket 2, to form an intuitive visual alignment reference. This facilitates quick confirmation during installation that the adjustment position of the microswitch body 1 is within the allowable deviation range. The indicator line 12 is longitudinally arranged along the surface of the microswitch body 1's outer shell and is made of a high-temperature resistant and wear-resistant marking material, ensuring clear identification even in complex environments and maintaining long-term marking effectiveness. Through the synergistic effect of the indicator line 12 and the scale, the installation accuracy and operability are further improved, ensuring accurate and stable triggering timing of the push rod 13 contact throughout the valve plate's movement. This meets the technical requirements of aircraft cabin air conditioning systems for highly reliable feedback of critical sensor signals.

[0050] As a further improvement of this utility model, the contact limiting edge should play a role in preventing the outer contact of the micro switch push rod 13 from being excessively compressed (mechanical limiting), and the thickness (height) of its directly triggered structure should ensure that the triggering structure can simultaneously contact the outer contact of the micro switch push rod 13 and the metal bracket.

[0051] As a further improvement of this utility model, it also includes an upper gasket 5, a lower gasket 6, and a connector; the upper gasket 5 is placed on the top of the micro switch body 1, the lower gasket 6 is placed on the bottom of the mounting bracket 2, and the connector is sequentially inserted through the upper gasket 5, the micro switch body 1, the mounting bracket 2, and the lower gasket 6.

[0052] The use of upper and lower shims effectively compensates for assembly gaps, reduces preload fluctuations caused by mechanical vibration or thermal expansion and contraction, and improves the overall structural stability and durability. The upper shim 5 and lower shim 6 are made of a metal material with stable elastic properties, exhibiting excellent creep resistance and springback characteristics, ensuring that connection reliability does not decrease during long-term service. The connectors, in conjunction with the shims, achieve uniform clamping, preventing concentrated force on the microswitch body 1 from causing deformation of the outer casing or displacement of internal contacts, thereby ensuring the continuity and accuracy of signal feedback and meeting the requirements for operation under high-intensity vibration and wide temperature range in aerospace environments.

[0053] Example 2: The only difference between Embodiment 2 and Embodiment 1 is the structure of the force-bearing plate 14 in the micro switch assembly. Specifically, in this embodiment, as shown... Figure 8 , Figures 11-13 As shown, the micro switch body 1 includes a housing and a push rod 13, a force receiving plate 14, an elastic element, a normally open conductive block 16, and a normally closed conductive block 17 disposed inside the housing; wherein: the elastic element can be a spring 18. The spring 18 abuts against the middle of the force-receiving plate 14 so that the force-receiving plate 14 forms a seesaw structure; in order to ensure the abutting effect, the force-receiving plate 14 is provided with a spring mounting groove 142; One end of the force-bearing plate 14 is provided with a double cylindrical moving contact 144; Normally open conductive block 16 and normally closed conductive block 17 are respectively disposed on both sides of the double cylindrical moving contact 144; The other end of the force-bearing plate 4 abuts against the push rod 13. Specifically, the abutment position between the force-bearing plate 4 and the push rod 13 is the force-bearing area 141.

[0054] The force-bearing plate of this utility model adopts a double-contact single-pole line contact form (redundant design) and has a certain ability to resist external interference. It can effectively avoid the failure of micro switches to conduct normally due to common failure reasons such as oxidation and poor contact, and greatly improve the reliability of micro switches.

[0055] As a further improvement of this utility model, the double cylindrical moving contact 144 includes a connecting rod, and a first cylindrical contact and a second cylindrical contact respectively connected to both ends of the connecting rod.

[0056] As a further improvement of this utility model, it also includes an elastic buffer region 143 disposed between the force-bearing plate 14 and the double cylindrical moving contact 144.

[0057] By incorporating an elastic buffer zone 143, the impact energy generated during the push rod's movement is further absorbed, reducing the bounce amplitude of the contact at the moment of contact, thereby lowering the risk of arc erosion and extending contact life. This buffer zone is integrally molded with the force-bearing plate, ensuring a stable force transmission path and sensitive response.

[0058] As a further improvement of this utility model, the elastic buffer area 143 includes an elastic rod and a buffer opening; wherein: The width and thickness of the elastic rod are both smaller than the width and thickness of the force-bearing plate; There is at least one buffer opening, which is spaced apart along the length of the elastic rod.

[0059] By incorporating a buffer opening and thinning and narrowing the elastic rod, the local stiffness of the elastic rod is significantly reduced, enhancing its flexible deformation capacity and thus more effectively absorbing impact loads. The location of the buffer opening corresponds to the peak bending moment zone of the elastic rod, optimizing stress distribution and preventing fatigue concentration. When the push rod is subjected to external force, causing the force-bearing plate to swing, the elastic rod undergoes a slight elastic buckling at the buffer opening. This, combined with the overall seesaw motion, ensures that the double cylindrical moving contacts smoothly contact the corresponding contact points, further suppressing contact bounce.

[0060] As a further improvement of this utility model, the side of the normally open conductive block 16 that contacts the double cylindrical moving contact 144 has a V-shaped inclined surface structure. Furthermore, the normally closed conductive block 17 has a V-shaped inclined surface structure on the side that contacts the double cylindrical moving contact 144.

[0061] Specifically, such as Figure 12 and Figure 13As shown, the V-shaped inclined structure includes a first flat section and a second inclined section, with the double cylindrical moving contact 144 abutting at the junction of the first flat section and the second inclined section. The inclination angle of the second inclined section is 20°-45°.

[0062] When the micro switch assembly of this utility model is in use, the force-bearing plate 14 has the following structure: Figure 11 As shown, it consists of four sections. The first section is the force-bearing area 141, which bears the push rod pressure F1 and the spring thrust Ft. The second section has a spring mounting groove 142 for fixing the spring 18. The third section is an elastic buffer area 143, which improves elasticity by reducing the width and thickness of the metal sheet and by slotting. When the microswitch is turned on, this section undergoes slight elastic deformation, generating a preload force between the moving contact and the conductor plane, thus ensuring full contact between the moving contact and the conductor plane and resisting a certain degree of vibration and impact. The normally closed and normally open conductive block contact areas (stationary contacts) are sloped (inclination angle 20~45°), which not only limits the contact position of the moving and stationary contacts and ensures the preload force, but also increases the contact area and improves the reliability of the microswitch. Figure 12 As shown. The fourth section is the double-cylindrical moving contact area 144, designed differently from the traditional single-contact single-pole point contact, employing a double-contact single-pole line contact. The moving contacts are two cylinders, and the contact areas with the upper and lower normally closed and normally open conductor planes are both lines, while conventional microswitch moving contacts are generally spherical, with a point contact area. Compared to point contact, line contact has a larger contact area, is less prone to conduction failure due to oxidation of the contact area, and has stronger current carrying capacity and resistance to ablation. Furthermore, compared to single contact, even if one contact fails due to oxidation or other reasons, the other contact can still conduct normally, greatly improving the reliability of the microswitch.

[0063] Example 3: The present invention provides a temperature control valve, including the micro switch assembly in Embodiment 1 or Embodiment 2.

[0064] Operating position: The position of the outer contact of the push rod 13 when the micro switch is just turned on or off. If the common center plane of the two mounting holes 11 of the micro switch is taken as a reference, the distance L between the outer contact of the push rod 13 and this reference plane when the switch is on / off (e.g., ...) Figure 3 (As shown on the left) This is the position of the action.

[0065] By setting up a mounting bracket in the micro switch assembly and adjusting the mounting hole 21 on the mounting bracket, the problem of consistency in the manufacturing of the micro switch parts themselves—the problem of large deviations in the action position leading to difficult installation—is solved.

[0066] By opening a waist-shaped through hole on the micro switch mounting bracket 2, the versatility of micro switches with large operating position deviations is improved. The distance between the mounting hole 11 and the outer edge of the micro switch mounting bracket 2 is designed so that the mounting bracket 2 can both fix the position of the micro switch and prevent overpressure of the micro switch contact (mechanical limit). An indicator line (marker) is added to the center position of the micro switch mounting hole 11, and size scale lines are added to both sides of the through hole of the mounting bracket. The combination of these two can significantly improve the service life of the micro switch and the replacement interval.

[0067] Specifically, the micro switch assembly includes a micro switch body 1, a metal mounting bracket 2, a first fastening screw 3, a second fastening screw 4, an upper washer 5, a lower washer 6, a first nut 7, and a second nut 8.

[0068] Among them, the micro switch body 1 is the most important functional component for the device to realize the feedback position signal, such as Figure 8 As shown, it mainly consists of a housing and a push rod 13, a force-bearing plate 14 (including a moving contact), a common end conductive block 15, a normally open end conductive block 16 (including a stationary contact), a normally closed end conductive block 17 (including a stationary contact), and a spring 18 disposed inside the housing. The housing has an indicator line 12 on both sides indicating the center position of the mounting hole 11. The principle of the micro switch body 1 is as follows: the external triggering mechanism presses the outer contact of the push rod 13, and the inner contact of the push rod 13 simultaneously presses the force receiving plate 14, causing the moving contact of the force receiving plate 14 to separate from the stationary contact of the normally closed conductive block 17 and contact the stationary contact of the normally open conductive block 16, and compressing the spring 18 under the force receiving plate 14; the external triggering mechanism releases the outer contact of the push rod 13, and the inner contact of the push rod 13 simultaneously releases the force receiving plate 14, and the spring 18's rebound force causes the moving contact of the force receiving plate 14 to separate from the stationary contact of the normally open conductive block 16 and contact the stationary contact of the normally closed conductive block 17, thus realizing the conduction and disconnection of the circuit between the common terminal conductive block 15 and the normally closed / normally open conductive block 16. When powered by an external power supply, the mechanical signal can be converted into an electrical signal to realize signal transmission.

[0069] like Figure 7As shown, the mounting bracket 2 has two oblong adjustment mounting holes 21 with specific dimensions. The distance between the operating position of the microswitch body 1 and the center of its mounting hole 11 is L mm, with a deviation of ±δ mm. The straight section 211 of the adjustment mounting hole 21 of the mounting bracket 2 has a length of at least 2δ mm. The distance between the center of the adjustment mounting hole 21 and the contact limiting edge 23 of the mounting bracket 2 is also L mm. The straight section 211 of the mounting bracket 2 has a size scale line 22 on its outer side, which is used in conjunction with the indicator line 12 indicating the center position of the mounting hole 11 on the switch housing when assembling the microswitch assembly to improve the installation accuracy. The contact limiting edge 23 is designed to prevent the outer contact of the microswitch push rod 13 from being excessively compressed (mechanical limiting). The thickness (height) of its directly triggered structure must ensure that the triggering structure can simultaneously contact the outer contact of the microswitch push rod 13 and the mounting bracket 2, as shown in Figure 10. Furthermore, while ensuring the dimensions of the mounting hole 21, the contact limit edge 23, and the size scale lines are maintained, the shape of the mounting bracket 2 is not fixed and can be changed according to the actual usage scenario.

[0070] The dimensions of the first fastening screw 3 and the second fastening screw 4 are adapted to the mounting hole 11 of the micro switch, while the upper washer 5, the lower washer 6, the first nut 7 and the second nut 8 are used in conjunction with the fastening screws.

[0071] When the distance between the actuated positions of the micro switch is L, the first fastening screw 3 and the second fastening screw 4 pass through the two through holes of the upper washer 5, the micro switch mounting hole, the adjustment mounting hole of the mounting bracket 2, and the two through holes of the lower washer 6 in sequence, and are respectively assembled with the first nut 7 and the second nut 8. Move the micro switch on the mounting bracket 2. The optimal position to ensure the life and normal function of the micro switch is when the center indicator line 12 of the micro switch mounting hole 11 is aligned with the middle scale line of the dimension scale line 22 on the mounting bracket 2. After confirming the position, tighten the bolts and nuts to complete the assembly of the micro switch assembly.

[0072] When the distance between the actuated position of the micro switch is L+ε (ε≤δ), the first fastening screw 3 and the second fastening screw 4 pass through the two through holes of the upper washer 5, the mounting hole 11 of the micro switch, the adjustment mounting hole 21 of the mounting bracket 2, and the two through holes of the lower washer 6 in sequence, and are respectively assembled with the first nut 7 and the second nut 8. Move the micro switch on the mounting bracket 2. The optimal position to ensure the life of the micro switch and its normal function is to the left of the center of the U-shaped hole. The specific leftward distance can be adjusted according to ε and the size scale on the mounting bracket 2. After confirming the position, tighten the bolts and nuts to complete the assembly of the micro switch assembly.

[0073] When the distance between the actuated position of the micro switch is L-ε (ε≤δ), the first fastening screw 3 and the second fastening screw 4 pass through the two through holes of the upper washer 5, the micro switch mounting hole 11, the two adjusting mounting holes 21 of the mounting bracket 2, and the two through holes of the lower washer 6 in sequence, and are respectively assembled with the first nut 7 and the second nut 8. Move the micro switch on the mounting bracket 2. The optimal position to ensure the life of the micro switch and its normal function is to the right of the center of the adjusting mounting hole 21. The specific rightward distance can be adjusted according to ε and the size scale on the mounting bracket 2. After confirming the position, tighten the bolts and nuts to complete the assembly of the micro switch assembly.

[0074] like Figure 8 , Figures 11-13 As shown, the micro switch body 1 of this utility model includes a housing and a push rod 13, a force receiving plate 14, an elastic element, a normally open conductive block 16, and a normally closed conductive block 17 disposed inside the housing; wherein: the elastic element can be a spring 18. The spring 18 abuts against the middle of the force-receiving plate 14 so that the force-receiving plate 14 forms a seesaw structure; in order to ensure the abutting effect, the force-receiving plate 14 is provided with a spring mounting groove 142; One end of the force-bearing plate 14 is provided with a double cylindrical moving contact 144; Normally open conductive block 16 and normally closed conductive block 17 are respectively disposed on both sides of the double cylindrical moving contact 144; The other end of the force-bearing plate 4 abuts against the push rod 13. Specifically, the abutment position between the force-bearing plate 4 and the push rod 13 is the force-bearing area 141.

[0075] The force-bearing plate of this invention adopts a double-contact single-pole line contact form (redundant design) and has a certain ability to resist external interference. It can effectively avoid the failure of micro switches to conduct normally due to common failure reasons such as oxidation and poor contact, and greatly improve the reliability of micro switches.

[0076] As a further improvement of this utility model, the double cylindrical moving contact 144 includes a connecting rod, and a first cylindrical contact and a second cylindrical contact respectively connected to both ends of the connecting rod.

[0077] As a further improvement of this utility model, it also includes an elastic buffer region 143 disposed between the force-bearing plate 14 and the double cylindrical moving contact 144.

[0078] By incorporating an elastic buffer zone 143, the impact energy generated during the push rod's movement is further absorbed, reducing the bounce amplitude of the contact at the moment of contact, thereby lowering the risk of arc erosion and extending contact life. This buffer zone is integrally molded with the force-bearing plate, ensuring a stable force transmission path and sensitive response.

[0079] As a further improvement of this utility model, the elastic buffer area 143 includes an elastic rod and a buffer opening; wherein: The width and thickness of the elastic rod are both smaller than the width and thickness of the force-bearing plate; There is at least one buffer opening, which is spaced apart along the length of the elastic rod.

[0080] By incorporating a buffer opening and thinning and narrowing the elastic rod, the local stiffness of the elastic rod is significantly reduced, enhancing its flexible deformation capacity and thus more effectively absorbing impact loads. The location of the buffer opening corresponds to the peak bending moment zone of the elastic rod, optimizing stress distribution and preventing fatigue concentration. When the push rod is subjected to external force, causing the force-bearing plate to swing, the elastic rod undergoes a slight elastic buckling at the buffer opening. This, combined with the overall seesaw motion, ensures that the double cylindrical moving contacts smoothly contact the corresponding contact points, further suppressing contact bounce.

[0081] As a further improvement of this utility model, the side of the normally open conductive block 16 that contacts the double cylindrical moving contact 144 has a V-shaped inclined surface structure. Furthermore, the normally closed conductive block 17 has a V-shaped inclined surface structure on the side that contacts the double cylindrical moving contact 144.

[0082] Specifically, such as Figure 12 and Figure 13 As shown, the V-shaped inclined structure includes a first flat section and a second inclined section, with the double cylindrical moving contact 144 abutting at the junction of the first flat section and the second inclined section. The inclination angle of the second inclined section is 20°-45°.

[0083] When the micro switch assembly of this utility model is in use, the force-bearing plate 14 has the following structure: Figure 11 As shown, it consists of four sections. The first section is the force-bearing area 141, which bears the push rod pressure F1 and the spring thrust Ft. The second section has a spring mounting groove 142 for fixing the spring 18. The third section is an elastic buffer area 143, which improves elasticity by reducing the width and thickness of the metal sheet and by slotting. When the microswitch is turned on, this section undergoes slight elastic deformation, generating a preload force between the moving contact and the conductor plane, thus ensuring full contact between the moving contact and the conductor plane and resisting a certain degree of vibration and impact. The normally closed and normally open conductive block contact areas (stationary contacts) are sloped (inclination angle 20~45°), which not only limits the contact position of the moving and stationary contacts and ensures the preload force, but also increases the contact area and improves the reliability of the microswitch. Figure 12As shown. The fourth section is the double-cylindrical moving contact area 144, designed differently from the traditional single-contact single-pole point contact, employing a double-contact single-pole line contact. The moving contacts are two cylinders, and the contact areas with the upper and lower normally closed and normally open conductor planes are both lines, while conventional microswitch moving contacts are generally spherical, with a point contact area. Compared to point contact, line contact has a larger contact area, is less prone to conduction failure due to oxidation of the contact area, and has stronger current carrying capacity and resistance to ablation. Furthermore, compared to single contact, even if one contact fails due to oxidation or other reasons, the other contact can still conduct normally, greatly improving the reliability of the microswitch.

[0084] The structure of the load-bearing plate is as follows Figure 11 As shown, it consists of three sections. The first section, 141, is the force-bearing area, bearing the push rod pressure F1 and the spring thrust Ft. 142 is the spring mounting groove. The second section, 143, is the elastic buffer area. This section improves elasticity by reducing the width and thickness of the metal sheet and by creating slots. When the microswitch is turned on, this section undergoes slight elastic deformation, generating a preload force between the moving contact and the conductor plane. This ensures full contact between the moving contact and the conductor plane and also resists a certain degree of vibration and impact. The normally closed and normally open conductor contact areas (stationary contacts) are sloped (inclination angle 20~45°), which not only limits the contact position of the moving and stationary contacts and ensures the preload force, but also increases the contact area and improves the reliability of the microswitch. Figure 12 As shown. The third segment, 144, is the moving contact area, designed differently from traditional single-contact single-pole point contact, employing a double-contact single-pole line contact. The moving contacts are two cylinders, and their contact areas with the upper and lower normally closed and normally open conductor planes are both lines, whereas conventional microswitch moving contacts are typically spherical, with a point contact area. Compared to point contact, line contact has a larger contact area, is less prone to conduction failure due to oxidation of the contact area, and has stronger current carrying capacity and resistance to ablation. Furthermore, compared to single contact, even if one contact fails due to oxidation or other reasons, the other contact can still conduct normally, greatly improving the reliability of the microswitch.

[0085] The temperature control valve uses two microswitch assemblies to monitor the fully open and fully closed positions of the valve plate, respectively. Both assemblies use their normally closed terminals to provide position signals. When the valve plate is in the intermediate position between fully closed and fully open, the external contacts of the push rods 13 of both microswitch assemblies remain under force, and the circuit between the common terminal and the normally closed terminal remains open. Since the temperature control valve remains open for more than half the time the aircraft cabin air conditioning system operates, the springs 18 inside the two microswitch assemblies are constantly under compression. Excessive compression over a long period can easily lead to permanent plastic deformation of the springs 18, causing a larger deviation in the microswitch feedback signal, or even complete failure. The aforementioned microswitch assembly solution can greatly improve the service life of the microswitches and the replacement interval during use, and improve the accuracy of the microswitch feedback signals for the fully open and fully closed positions of the temperature control valve.

[0086] Example 4: The present invention provides an air conditioning system, including the temperature control valve described above.

[0087] The temperature control valve includes two microswitch assemblies.

[0088] Each micro switch assembly includes a mounting bracket 2 and a micro switch body; the mounting bracket 2 is provided with an oblong adjustment mounting hole 21 and a size scale line 22.

[0089] In this embodiment, when the operating position of a batch of micro switch bodies 1 is 8±0.4mm, the length of the straight section 211 of the adjustment mounting hole 21 of the mounting bracket 2 is 0.8mm (2*0.4), and the distance from the center of the adjustment mounting hole 21 to the contact limit edge 23 is 8mm.

[0090] If the actuating position of one of the microswitches 1 is exactly 8mm, press Figure 1 Assemble the micro switch as shown, but do not tighten the bolt and nut. Adjust the distance between the center of the bolt and the contact limit edge 23. Refer to the arrow indicator line on the micro switch housing and the size scale line of the mounting bracket 2. Theoretically, if the bolt is tightened at the center of the adjustment mounting hole, the trigger position will be exactly at the operating position (the distance between the contact limit edge 23 and the center of the bolt is 8mm).

[0091] If one of the microswitches is positioned exactly 8.3mm, press Figure 1 Assemble the micro switch as shown, but do not tighten the bolt and nut. Adjust the micro switch so that the distance between the center of the bolt and the contact limit edge 23 is 8.3mm. Refer to the arrow indicator line on the micro switch housing and the size scale line of the mounting bracket 2. Theoretically, if the bolt is tightened to the left of the adjustment mounting hole, the trigger position will be exactly at the operating position (the distance between the contact limit edge 23 and the center of the bolt is approximately 8.3mm).

[0092] If the actuation position of one of the microswitches is exactly 7.7mm, follow the above steps to move the microswitch to a certain position on the right side of the adjustment mounting hole and install it securely to ensure the effect.

[0093] The micro switch body 1 of this utility model includes a housing and a push rod 13, a force receiving plate 14, an elastic element, a normally open conductive block 16, and a normally closed conductive block 17 disposed inside the housing; wherein: the elastic element can be a spring 18. The spring 18 abuts against the middle of the force-receiving plate 14 so that the force-receiving plate 14 forms a seesaw structure; in order to ensure the abutting effect, the force-receiving plate 14 is provided with a spring mounting groove 142; One end of the force-bearing plate 14 is provided with a double cylindrical moving contact 144; Normally open conductive block 16 and normally closed conductive block 17 are respectively disposed on both sides of the double cylindrical moving contact 144; The other end of the force-bearing plate 4 abuts against the push rod 13. Specifically, the abutment position between the force-bearing plate 4 and the push rod 13 is the force-bearing area 141.

[0094] The force-bearing plate of this invention adopts a double-contact single-pole line contact form (redundant design) and has a certain ability to resist external interference. It can effectively avoid the failure of micro switches to conduct normally due to common failure reasons such as oxidation and poor contact, and greatly improve the reliability of micro switches.

[0095] As a further improvement of this utility model, the double cylindrical moving contact 144 includes a connecting rod, and a first cylindrical contact and a second cylindrical contact respectively connected to both ends of the connecting rod.

[0096] As a further improvement of this utility model, it also includes an elastic buffer region 143 disposed between the force-bearing plate 14 and the double cylindrical moving contact 144.

[0097] By incorporating an elastic buffer zone 143, the impact energy generated during the push rod's movement is further absorbed, reducing the bounce amplitude of the contact at the moment of contact, thereby lowering the risk of arc erosion and extending contact life. This buffer zone is integrally molded with the force-bearing plate, ensuring a stable force transmission path and sensitive response.

[0098] As a further improvement of this utility model, the elastic buffer area 143 includes an elastic rod and a buffer opening; wherein: The width and thickness of the elastic rod are both smaller than the width and thickness of the force-bearing plate; There is at least one buffer opening, which is spaced apart along the length of the elastic rod.

[0099] By incorporating a buffer opening and thinning and narrowing the elastic rod, the local stiffness of the elastic rod is significantly reduced, enhancing its flexible deformation capacity and thus more effectively absorbing impact loads. The location of the buffer opening corresponds to the peak bending moment zone of the elastic rod, optimizing stress distribution and preventing fatigue concentration. When the push rod is subjected to external force, causing the force-bearing plate to swing, the elastic rod undergoes a slight elastic buckling at the buffer opening. This, combined with the overall seesaw motion, ensures that the double cylindrical moving contacts smoothly contact the corresponding contact points, further suppressing contact bounce.

[0100] As a further improvement of this utility model, the side of the normally open conductive block 16 that contacts the double cylindrical moving contact 144 has a V-shaped inclined surface structure. Furthermore, the normally closed conductive block 17 has a V-shaped inclined surface structure on the side that contacts the double cylindrical moving contact 144.

[0101] Specifically, such as Figure 12 and Figure 13 As shown, the V-shaped inclined structure includes a first flat section and a second inclined section, with the double cylindrical moving contact 144 abutting at the junction of the first flat section and the second inclined section. The inclination angle of the second inclined section is 20°-45°.

[0102] When the micro switch assembly of this utility model is in use, the force-bearing plate 14 has the following structure: Figure 11 As shown, it consists of four sections. The first section is the force-bearing area 141, which bears the push rod pressure F1 and the spring thrust Ft. The second section has a spring mounting groove 142 for fixing the spring 18. The third section is an elastic buffer area 143, which improves elasticity by reducing the width and thickness of the metal sheet and by slotting. When the microswitch is turned on, this section undergoes slight elastic deformation, generating a preload force between the moving contact and the conductor plane, thus ensuring full contact between the moving contact and the conductor plane and resisting a certain degree of vibration and impact. The normally closed and normally open conductive block contact areas (stationary contacts) are sloped (inclination angle 20~45°), which not only limits the contact position of the moving and stationary contacts and ensures the preload force, but also increases the contact area and improves the reliability of the microswitch. Figure 12 As shown. The fourth section is the double-cylindrical moving contact area 144, designed differently from the traditional single-contact single-pole point contact, employing a double-contact single-pole line contact. The moving contacts are two cylinders, and the contact areas with the upper and lower normally closed and normally open conductor planes are both lines, while conventional microswitch moving contacts are generally spherical, with a point contact area. Compared to point contact, line contact has a larger contact area, is less prone to conduction failure due to oxidation of the contact area, and has stronger current carrying capacity and resistance to ablation. Furthermore, compared to single contact, even if one contact fails due to oxidation or other reasons, the other contact can still conduct normally, greatly improving the reliability of the microswitch.

[0103] The structure of the load-bearing plate is as follows Figure 11As shown, it consists of three sections. The first section, 141, is the force-bearing area, bearing the push rod pressure F1 and the spring thrust Ft. 142 is the spring mounting groove. The second section, 143, is the elastic buffer area. This section improves elasticity by reducing the width and thickness of the metal sheet and by creating slots. When the microswitch is turned on, this section undergoes slight elastic deformation, generating a preload force between the moving contact and the conductor plane. This ensures full contact between the moving contact and the conductor plane and also resists a certain degree of vibration and impact. The normally closed and normally open conductor contact areas (stationary contacts) are sloped (inclination angle 20~45°), which not only limits the contact position of the moving and stationary contacts and ensures the preload force, but also increases the contact area and improves the reliability of the microswitch. Figure 12 As shown. The third segment, 144, is the moving contact area, designed differently from traditional single-contact single-pole point contact, employing a double-contact single-pole line contact. The moving contacts are two cylinders, and their contact areas with the upper and lower normally closed and normally open conductor planes are both lines, whereas conventional microswitch moving contacts are typically spherical, with a point contact area. Compared to point contact, line contact has a larger contact area, is less prone to conduction failure due to oxidation of the contact area, and has stronger current carrying capacity and resistance to ablation. Furthermore, compared to single contact, even if one contact fails due to oxidation or other reasons, the other contact can still conduct normally, greatly improving the reliability of the microswitch.

[0104] First, it should be noted that "inward" refers to the direction towards the center of the storage space, while "outward" refers to the direction away from the center of the storage space.

[0105] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the appendix. Figure 1 The orientations or positional relationships shown are for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0106] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0107] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0108] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0109] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0110] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A micro switch assembly, characterized in that, The device includes a micro switch body and a mounting bracket for fixing the micro switch body; the mounting bracket is provided with an adjustment mounting hole for adjusting the mounting position of the micro switch body according to the deviation of the micro switch body's operating position; the adjustment mounting hole is an elongated slotted hole, including a straight section and an arc section; the length of the straight section is not less than 2δ, where δ is the deviation of the micro switch body's operating position.

2. The micro switch assembly according to claim 1, characterized in that, The number of adjustment mounting holes is two, arranged side by side at intervals.

3. The micro switch assembly according to claim 1, characterized in that, One side of the mounting bracket is a contact limiting side, and the distance between the center of the adjustment mounting hole and the contact limiting side is equal to the operating position distance L of the micro switch body.

4. The micro switch assembly according to claim 1, characterized in that, The mounting bracket has a size scale line corresponding to the outer position of the straight section; the micro switch body has an indicator line for indicating the center position of the mounting hole.

5. The micro switch assembly according to claim 1, characterized in that, It also includes an upper gasket, a lower gasket, and a connector; the upper gasket is placed on the top of the micro switch body, the lower gasket is placed on the bottom of the mounting bracket, and the connector is sequentially inserted through the upper gasket, the micro switch body, the mounting bracket, and the lower gasket.

6. The micro switch assembly according to claim 1, characterized in that, The micro switch body includes a housing and a push rod, a force-receiving plate, an elastic element, a normally open conductive block, and a normally closed conductive block disposed within the housing; wherein: The elastic element abuts against the middle of the force-bearing plate, so that the force-bearing plate forms a seesaw structure; One end of the force-bearing plate is provided with a double cylindrical moving contact; The normally open conductive block and the normally closed conductive block are respectively disposed on both sides of the double cylindrical moving contact. The other end of the force-bearing plate abuts against the push rod.

7. The micro switch assembly according to claim 6, characterized in that, The double cylindrical moving contact includes a connecting rod, and a first cylindrical contact and a second cylindrical contact respectively connected to the two ends of the connecting rod.

8. The micro switch assembly according to claim 7, characterized in that, It also includes an elastic buffer area disposed between the force-bearing plate and the double cylindrical moving contact.

9. The micro switch assembly according to claim 8, characterized in that, The elastic buffer area includes an elastic rod and a buffer opening; wherein: The width and thickness of the elastic rod are both smaller than the width and thickness of the force-bearing plate; The number of buffer openings is at least one, and they are spaced apart along the length of the elastic rod.

10. The micro switch assembly according to claim 6, characterized in that, The normally open conductive block has a V-shaped inclined surface structure on the side that contacts the double cylindrical moving contact; and / or, the normally closed conductive block has a V-shaped inclined surface structure on the side that contacts the double cylindrical moving contact.

11. A temperature-controlled valve, characterized in that, Includes the micro switch assembly as described in any one of claims 1-10.

12. An air conditioning system, characterized in that, Including the temperature control valve as described in claim 11.

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