Automobile thermostat sensitivity test equipment

Abstract

The present application relates to the technical field of thermostat detection, and provides a car thermostat sensitivity test device. The car thermostat has a connection end and a large and small cycle output end. The car thermostat sensitivity test device includes a frame with a liquid storage space and a temperature control part, an extraction part and a detection part arranged on the frame; the temperature control part is located in the liquid storage space and below the liquid storage space; the extraction part is located in the liquid storage space, and the extraction part is connected to the connection end; the detection part is respectively connected to the large and small cycle output ends. The temperature control part controls the temperature of the coolant, the extraction part sends the coolant to the car thermostat, the car thermostat sends the coolant to the detection part through the large and small cycle output ends, the detection part detects the flow rate difference of the large and small cycle output ends, and determines the sensitivity of the car thermostat to temperature through the flow rate difference and the corresponding temperature. The car thermostat sensitivity test device provided by the present application can detect the sensitivity of the car thermostat more accurately at a lower cost.

Description

Technical Field

[0001] The present application relates to the technical field of thermostat detection, and in particular to a vehicle thermostat sensitivity testing device. Background Art

[0002] The automobile thermostat is a key component for the large circulation and small circulation of automobile coolant; when the high-temperature coolant passes through the thermostat, the automobile thermostat will guide all the coolant into the large circulation pipeline so that the coolant can undergo a large circulation; when the low-temperature coolant passes through the thermostat, the automobile thermostat will guide the coolant into the small circulation pipeline so that the coolant can undergo a small circulation; when the coolant between high temperature and low temperature passes through the thermostat, the automobile thermostat will guide part of the coolant into the large circulation pipeline, and guide the remaining part of the coolant into the small circulation pipeline, so that part of the coolant undergoes a large circulation and the remaining part of the coolant undergoes a small circulation.

[0003] In the related art, automobile thermostats are generally tested using a thermostat test platform. The above thermostat test platform is expensive and generally cannot be afforded by repair shops. When repairing automobile thermostats, general repair shops generally place the thermostat in boiling water and observe its opening condition to judge whether the thermostat is good or bad. The above detection methods will affect the accuracy of the detection. Summary of the invention

[0004] The embodiment of the present application provides a vehicle thermostat sensitivity testing device, which can improve the technical problems existing in the related art that the testing equipment is expensive and the simple testing method has low accuracy.

[0005] The embodiment of the present application provides a vehicle thermostat sensitivity test device, wherein the vehicle thermostat has a connection end connected to the engine, a large circulation output end, and a small circulation output end, and the vehicle thermostat sensitivity test device comprises:

[0006] A frame having a liquid storage space for placing a coolant;

[0007] A temperature control unit is disposed on the frame, a portion of the temperature control unit is located below the liquid storage space, and another portion of the temperature control unit is located in the liquid storage space;

[0008] an extraction part, disposed on the frame, wherein a portion of the extraction part is located in the liquid storage space, an output end of the extraction part is used to communicate with the connection end, and an input end of the extraction part is located in the liquid storage space; and

[0009] A detection unit is arranged on the frame, one end of the detection unit is connected to the large circulation output end, and the other end of the detection unit is connected to the small circulation output end;

[0010] Among them, the temperature control unit is used to control the temperature of the coolant in the liquid storage space, so that the extraction unit can transport coolant of different temperatures to the automobile thermostat, and then the automobile thermostat can transport the coolant to the detection unit through the large circulation output end and / or the small circulation output end, and the detection unit can detect the flow rate difference between the large circulation output end and the small circulation output end, so as to determine the sensitivity of the automobile thermostat to the coolant temperature through the flow rate difference and its corresponding coolant temperature.

[0011] The above technical solutions in the embodiments of the present application have at least the following technical effects:

[0012] The automobile thermostat sensitivity test equipment provided by the embodiment of the present application is provided with a frame having a liquid storage space, a temperature control part provided on the frame, an extraction part provided on the frame, and a detection part provided on the frame; by placing a portion of the temperature control part used for heating below the liquid storage space, and placing a portion of the temperature control part used for detecting temperature in the liquid storage space; compared with the solution of directly pouring coolant of different temperatures into the liquid storage space, the temperature control part provided above can heat the coolant in the liquid storage space as needed to prevent the temperature of the coolant in the liquid storage space from decreasing due to the flow. By placing the portion of the extraction part used for extraction in the liquid storage space, and connecting the output end of the extraction part with the connection end of the thermostat; compared with the solution of directly connecting the automobile thermostat with the bottom of the liquid storage space, the above solution can transport the coolant into the automobile thermostat as needed, and can control the initial speed of the coolant entering the automobile thermostat. One end of the detection unit used for detection is connected to the large circulation output end of the automobile thermostat, and the other end of the detection unit used for detection is connected to the small circulation output end of the automobile thermostat. The two ends of the detection unit used for detection are compared to obtain the flow rate difference between the coolant at the large circulation output end and the coolant at the small circulation output end. Compared with the solution of directly setting two flow rate sensors at the large circulation output end and the small circulation output end, the flow rate sensors may be damaged and not easy to detect. The above solution can detect and repair them in time when they are damaged, thereby reducing the possibility of detection errors. The above automobile thermostat sensitivity test equipment has a relatively simple structure. Compared with the thermostat test platform, its cost is lower and most maintenance places can afford it. The method of placing the thermostat directly in boiling water used in the maintenance place requires the automobile thermostat assembly to be dismantled, and the automobile thermostat is placed in boiling water while observing the opening and closing of the automobile thermostat. Its detection method requires cumbersome disassembly and assembly, and the temperature cannot be well controlled, and the sensitivity of the automobile thermostat cannot be accurately detected. The above automobile thermostat sensitivity test equipment can save test time and can more accurately detect the sensitivity of the automobile thermostat. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0014] Figure 1 A schematic diagram of the three-dimensional structure of an automobile thermostat sensitivity testing device provided in an embodiment of the present application;

[0015] Figure 2 A schematic diagram of the side view structure of the automobile thermostat sensitivity testing device provided in an embodiment of the present application;

[0016] Figure 3 A schematic diagram of a top view of the structure of an automobile thermostat sensitivity test device provided in an embodiment of the present application;

[0017] Figure 4 for Figure 3 Schematic diagram of the cross-sectional structure along the AA line;

[0018] Figure 5 A schematic diagram of the principle structure of a detection device provided in an embodiment of the present application;

[0019] Figure 6 A schematic cross-sectional structural diagram of a portion of a detection device provided in an embodiment of the present application.

[0020] Among them, the reference numerals in the figure are:

[0021] 100. Thermostat sensitivity test equipment;

[0022] 10. rack; 10a. liquid storage space;

[0023] 20. Temperature control unit; 21. Heating device; 22. Temperature measuring device;

[0024] 30. extraction part; 31. extraction device; 32. extraction tube;

[0025] 40. Detection unit; 41. Large circulation tube; 42. Small circulation tube; 43. Large circulation detection tube; 44. Small circulation detection tube; 45. Detection device; 451. Variable resistor; 4511. First sliding structure; 45111. First sliding member; 45112. First movable conductor; 45113. Second movable conductor; 45114. First elastic element; 45115. Second elastic element; 451a. First adjustment through hole; 451b. Second adjustment through hole; 451c. Third adjustment through hole; 451d. Fourth adjustment through hole; 4512. Second sliding structure; 45121. Second sliding member; 45122. Third movable conductor; 45123. Fourth movable conductor; 45124. Third elastic element; 45125. Fourth elastic element; 4513. First resistor; 4514. Second resistor; 4515. Sliding member; 45122. Third movable conductor; 45123. Fourth movable conductor; 45124. Third elastic element; 45125. Fourth elastic element; 4513. First resistor; 4514. Second resistor; 4515. Moving rod; 452, first floating member; 452a, first space; 4521, first floating body; 4522, first active member; 4523, fifth elastic element; 4524, first pushing member; 4525, sixth elastic element; 4526, first stop member; 4527, seventh elastic element; 4528, first protruding member; 453, second floating member; 453a, second space; 4531, second floating body; 4532, second active member; 4533, eighth elastic element; 4534, second pushing member; 4535, ninth elastic element; 4536, second stop member; 4537, tenth elastic element; 4538, second protruding member; 454, first circuit; 4541, first ammeter; 4542, first power supply; 455, second circuit; 4551, second ammeter; 4552, second power supply. DETAILED DESCRIPTION

[0026] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application. The terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned figure descriptions are intended to cover non-exclusive inclusions.

[0028] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0029] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0030] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0031] In this application, "and / or" is only a description of the association relationship of associated objects, indicating that there can be three relationships; for example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0032] It should be noted that, in the present application, words such as "in some embodiments", "exemplarily", "for example", etc. are used to indicate examples, illustrations or descriptions. Any embodiment or design described in the present application as "in some embodiments", "exemplarily", "for example" should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "in some embodiments", "exemplarily", "for example", etc. is intended to present related concepts in a concrete way, meaning that specific features, structures or characteristics described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the above words in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0033] The automobile thermostat sensitivity test equipment is a device used to detect the automobile thermostat's response to the coolant temperature. By detecting the degree of opening of the automobile thermostat to the large circulation output port and the small circulation output port at different temperatures, the influence of the coolant temperature on the degree of opening of the automobile thermostat to the large circulation output port and the small circulation output port can be obtained.

[0034] The car thermostat sensitivity test equipment in the related art generally uses a thermostat test platform and a simple detection method; the thermostat test platform is expensive and cannot be afforded by general repair shops; the simple detection method can only judge the quality of the thermostat, and cannot accurately detect the sensitivity of the car thermostat to the coolant.

[0035] Based on this, in order to improve the problem of expensive detection equipment and low accuracy of simple detection methods in related technologies, the embodiments of the present application provide the following solution.

[0036] Please also read Figures 1 to 4 The embodiment of the present application provides a vehicle thermostat sensitivity test device 100, wherein the vehicle thermostat has a connection end connected to the engine, a large circulation output end and a small circulation output end, and the vehicle thermostat sensitivity test device 100 includes a frame 10, a temperature control unit 20, an extraction unit 30 and a detection unit 40; wherein:

[0037] The frame 10 has a liquid storage space 10a for storing cooling liquid.

[0038] The temperature control part 20 is disposed on the frame 10 , a part of the temperature control part 20 is located below the liquid storage space 10 a , and another part of the temperature control part 20 is located in the liquid storage space 10 a .

[0039] The extraction part 30 is disposed on the frame 10, and part of the extraction part 30 is located in the liquid storage space 10a. The output end of the extraction part 30 is used to connect to the connection end, and the input end of the extraction part 30 is located in the liquid storage space 10a.

[0040] The detection unit 40 is disposed on the frame 10 , one end of the detection unit 40 is connected to the large circulation output end, and the other end of the detection unit 40 is connected to the small circulation output end.

[0041] Among them, the temperature control unit 20 is used to control the temperature of the coolant in the liquid storage space 10a, so that the extraction unit 30 can transport the coolant of different temperatures to the automobile thermostat, and then the automobile thermostat can transport the coolant to the detection unit 40 through the large circulation output end and / or the small circulation output end, and the detection unit 40 can detect the flow rate difference between the large circulation output end and the small circulation output end, so as to determine the sensitivity of the automobile thermostat to the coolant temperature through the flow rate difference and its corresponding coolant temperature.

[0042] It can be understood that the rack 10 is a component used to combine various parts and place the coolant; for example, the rack can be a rectangular open box or a cylindrical barrel, etc.

[0043] The temperature control unit 20 is a component for controlling the temperature of the coolant in the liquid storage space 10a; for example, the temperature control unit 20 can be a component that combines a heating device (an electric heating wire heating device or an electromagnetic heating device) and a temperature sensor. The temperature of the coolant is detected by the temperature sensor, and the heating device adjusts the temperature of the coolant according to the information collected by the temperature sensing device and the detection needs; for another example, the temperature control unit 20 can also be a temperature controller, which is placed in the liquid storage space 10a to control the temperature of the coolant in the liquid storage space 10a.

[0044] The extraction part 30 is a component used to transport the coolant in the liquid storage space 10a to the automobile thermostat and give the coolant a certain initial kinetic energy; for example, the extraction part 30 can be a component that cooperates with a small water pump and an infusion tube. The small water pump is placed in the liquid storage space 10a, and one end of the infusion tube is connected to the output end of the small water pump, and the other end of the infusion tube is connected to the connection end of the automobile thermostat.

[0045] The detection unit 40 is a component for detecting the flow rate difference between the large circulation output end and the small circulation output end; for example, the detection unit 40 can be two flow rate sensors, one flow rate sensor is placed at the large circulation output end, and the other flow rate sensor is placed at the small circulation output end, through which the flow rate V of the large circulation output end is measured respectively. 大 and the flow rate V at the output of the small loop 小 , the velocity difference V between the large cycle output end and the small cycle output end can be obtained 差 =V 大 -V 小 For example, the detection unit 40 may be a liquid level differential flow meter, which detects the liquid level height H at the output end of the large circulation. 大 And the liquid level height H at the output end of the small cycle 小 , the velocity difference V between the large cycle output end and the small cycle output end can be obtained 差 = .

[0046] As can be seen from the above, the automobile thermostat sensitivity testing equipment 100 provided in the embodiment of the present application is provided with a frame 10 having a liquid storage space 10a, a temperature control unit 20 arranged on the frame 10, an extraction unit 30 arranged on the frame 10 and a detection unit 40 arranged on the frame 10; by placing a part of the temperature control unit 20 used for heating below the liquid storage space 10a, and placing a part of the temperature control unit 20 used for detecting the temperature in the liquid storage space 10a; compared with the solution of directly pouring coolant of different temperatures into the liquid storage space 10a, the temperature control unit 20 provided above can heat the coolant in the liquid storage space 10a as needed to prevent the temperature of the coolant in the liquid storage space 10a from decreasing due to the flow. By placing the extraction part of the extraction part 30 in the liquid storage space 10a, and connecting the output end of the extraction part 30 with the connection end of the thermostat; compared with the solution of directly connecting the automobile thermostat with the bottom of the liquid storage space 10a, the above solution can transport the coolant into the automobile thermostat as needed, and can control the initial speed of the coolant entering the automobile thermostat. One end of the detection part 40 used for detection is connected to the large circulation output end of the automobile thermostat, and the other end of the detection part 40 used for detection is connected to the small circulation output end of the automobile thermostat. By comparing the two ends of the detection part 40 used for detection, the flow rate difference between the coolant at the large circulation output end and the coolant at the small circulation output end can be obtained; compared with the solution of directly setting two flow rate sensors at the large circulation output end and the small circulation output end, the flow rate sensor may be damaged and it is not easy to detect. The above solution can be found and repaired in time when it is damaged during detection, thereby reducing the possibility of detection errors. The above automobile thermostat sensitivity test equipment 100 is relatively simple in structure. Compared with the thermostat test platform, its cost is lower and most maintenance sites can afford it. The method of directly placing the thermostat in boiling water used in the maintenance site requires the automobile thermostat assembly to be dismantled, and the automobile thermostat is placed in boiling water while observing the opening and closing of the automobile thermostat. Its detection method requires cumbersome disassembly and assembly, and the temperature cannot be well controlled, and the sensitivity of the automobile thermostat cannot be accurately detected. The above automobile thermostat sensitivity test equipment 100 can save testing time and can more accurately detect the sensitivity of the automobile thermostat.

[0047] In some embodiments, please refer to Figures 1 to 3 The detection unit 40 includes a large circulation tube 41, a small circulation tube 42, a large circulation detection tube 43, a small circulation detection tube 44 and a detection device 45, wherein:

[0048] One end of the large circulation pipe 41 is connected to the large circulation output end, and the other end of the large circulation pipe 41 is connected to the liquid storage space 10a.

[0049] One end of the small circulation tube 42 is connected to the small circulation output end, and the other end of the small circulation tube 42 is connected to the liquid storage space 10a.

[0050] One end of the large circulation detection pipe 43 is connected to the side of the large circulation pipe 41 facing away from the ground, and the large circulation detection pipe 43 is communicated with the large circulation pipe 41 .

[0051] One end of the small circulation detection tube 44 is connected to the side of the small circulation tube 42 facing away from the ground, and the small circulation detection tube 44 is communicated with the small circulation tube 42 .

[0052] The detection device 45 is arranged on the frame 10 ; the large circulation detection end of the detection device 45 is arranged in the large circulation detection tube 43 , and the small circulation detection end of the detection device 45 is arranged in the small circulation detection tube 44 .

[0053] Among them, the large circulation detection tube 43 is used to display the flow rate in the large circulation tube 41 through the height of the liquid level, and the small circulation detection tube 44 is used to display the flow rate in the small circulation tube 42 through the height of the liquid level. The height difference between the liquid level height of the large circulation detection tube 43 and the liquid level height of the small circulation detection tube 44 indirectly reflects the flow rate difference of the coolant in the large circulation tube 41 and the coolant in the small circulation tube 42.

[0054] It can be understood that the large circulation pipe 41 is a pipe used to guide the liquid in the large circulation output end back to the liquid storage space 10a. The small circulation pipe 42 is a pipe used to guide the liquid in the small circulation output end back to the liquid storage space 10a. The large circulation detection pipe 43 is a pipe used to display the height of the coolant at the large circulation output end. The small circulation detection pipe 44 is a pipe used to display the height of the coolant at the small circulation output end.

[0055] The detection device 45 is a device for detecting the liquid level difference between the large circulation detection tube 43 and the small circulation detection tube 44; for example, the detection device 45 can be a device in which a float is matched with a scale, and one end of the two floats is placed in the large circulation detection tube 43 and the small circulation detection tube 44, and the height difference at the other ends of the two floats is measured to obtain the liquid level difference between the large circulation detection tube 43 and the small circulation detection tube 44; for another example, the detection device 45 can also be a distance sensor, and two distance sensors are placed at the openings of the large circulation detection tube 43 and the small circulation detection tube 44, and the distance sensors are used to detect the distance between the liquid level of the coolant in the large circulation detection tube 43 and the small circulation detection tube 44 and the openings of the large circulation detection tube 43 and the small circulation detection tube 44, and then the liquid level difference between the large circulation detection tube 43 and the small circulation detection tube 44 is obtained.

[0056] In this way, by setting the large circulation tube 41 to connect the large circulation output end with the liquid storage space 10a and the small circulation tube 42 to connect the small circulation output end with the liquid storage space 10a, the coolant can be used repeatedly, thereby reducing the loss, and can simulate the working state of the automobile thermostat, so that the result can be close to the real working state. By setting the large circulation detection tube 43 and the small circulation detection tube 44, the flow rate in the large circulation tube 41 and the small circulation tube 42 can be indirectly reflected by the height difference, and the large circulation detection tube 43 and the small circulation detection tube 44 are set to be transparent, so that it can be roughly judged whether the detection device 45 is damaged. Compared with the solution of directly detecting the flow rate of the liquid in the large circulation detection tube 43 and the small circulation detection tube 44, the above solution can more intuitively see the liquid level difference and understand the flow rate difference.

[0057] Optionally, in some embodiments, see Figure 5 , the detection device 45 includes a variable resistor 451, a first floating member 452 and a second floating member 453; wherein:

[0058] The variable resistor 451 is arranged on the frame 10, and the variable resistor 451 includes a first sliding structure 4511 and a second sliding structure 4512. The first sliding structure 4511 has a first adjusting through hole 451a and a second adjusting through hole 451b, and the first adjusting through hole 451a and the second adjusting through hole 451b are respectively located at the two ends of the first sliding structure 4511; the second sliding structure 4512 has a third adjusting through hole 451c and a fourth adjusting through hole 451d, and the third adjusting through hole 451c and the fourth adjusting through hole 451d are respectively located at the two ends of the second sliding structure 4512; the central axis of the first adjusting through hole 451a and the central axis of the third adjusting through hole 451c are located on the same straight line, and the central axis of the second adjusting through hole 451b and the central axis of the fourth adjusting through hole 451d are located on the same straight line.

[0059] The first floating member 452 is movably disposed in the first adjustment through hole 451 a and the third adjustment through hole 451 c , and one end of the first floating member 452 is disposed in the large circulation detection tube 43 .

[0060] The second floating member 453 is movably disposed in the second adjustment through hole 451 b and the fourth adjustment through hole 451 d , and one end of the second floating member 453 is disposed in the small circulation detection tube 44 .

[0061] Among them, the first floating member 452 is used to drive the first sliding structure 4511 to move, and the second floating member 453 is used to drive the second sliding structure 4512 to move, so that the resistance of the variable resistor 451 in the circuit changes; the first floating member 452 is also used to drive the second sliding structure 4512 to move, and the second floating member 453 is used to drive the first sliding structure 4511 to move, so that the resistance of the variable resistor 451 in the circuit changes.

[0062] It can be understood that the variable resistor 451 is a resistor used to be electrically connected to the first circuit 454 or the second circuit 455; for example, the variable resistor 451 can be a resistor combined with two sliding resistors and two switches, and the two sliding resistors and the two switches are jointly controlled by the first floating member 452 and the second floating member 453 to control the size of the resistance value of the sliding resistor connected to the circuit and the opening state of the first circuit 454 and the second circuit 455; for another example, the variable resistor 451 can also be a resistor combined with two variable resistance boxes and two switches, and the variable resistance box and the floating member are connected by gear racks, and the two variable resistance boxes and the two switches are jointly controlled by the first floating member 452 and the second floating member 453 to control the size of the resistance value of the variable resistance box connected to the circuit and the opening state of the first circuit 454 and the second circuit 455.

[0063] The first sliding structure 4511 and the second sliding structure 4512 cooperate to control the resistance value of the variable resistor 451 in the circuit and control whether the first circuit 454 and the second circuit 455 are connected; for example, the first sliding structure 4511 and the second sliding structure 4512 can be a structure composed of a slider and a movable conductor, and two movable spaces are provided at both ends of the slider, and the movable conductor can be movably placed in the movable space, and one end of the movable conductor is electrically connected to the circuit, and the resistance value of the variable resistor 451 in the circuit is controlled by sliding the slider, and the first circuit 454 and the second circuit 455 are controlled by moving the movable conductor. The first floating member 452 and the second floating member 453 cooperate to control the components of the first sliding structure 4511 and the second sliding structure 4512; for example, the first floating member 452 and the second floating member 453 can be hollow rods or components composed of floating members and rods.

[0064] In this way, the first sliding structure 4511 and the second sliding structure 4512 are controlled respectively by the first floating member 452 and the second floating member 453, so that the variable resistor 451 is connected to the resistance value of the first circuit 454 and the second circuit 455, and then the liquid level height difference in the large circulation detection tube 43 and the small circulation detection tube 44 is converted into the resistance value in the connected circuit; compared with the scheme of directly measuring the liquid level height difference in the large circulation detection tube 43 and the small circulation detection tube 44, the measurement of the liquid level in the large circulation detection tube 43 and the small circulation detection tube 44 needs to be observed by the human eye, which may cause large errors. The above scheme can be detected by an ammeter or a voltmeter, thereby reducing the measurement error.

[0065] Optionally, see Figure 1 , Figure 3 and Figure 5 , the detection device 45 also includes a first circuit 454 and a second circuit 455; wherein:

[0066] The first circuit 454 is arranged on the frame 10, and a portion of the variable resistor 451 is electrically connected to the first circuit 454, one end of the first circuit 454 is electrically connected to an end of the first sliding structure 4511 close to the first circuit 454, and the other end of the first circuit 454 is electrically connected to an end of the second sliding structure 4512 close to the first circuit 454.

[0067] The second circuit 455 is set on the frame 10, and the other part of the variable resistor 451 is electrically connected to the second circuit 455, one end of the second circuit 455 is electrically connected to the other end of the first sliding structure 4511 close to the second circuit 455, and the other end of the second circuit 455 is electrically connected to the other end of the second sliding structure 4512 close to the second circuit 455.

[0068] The first floating member 452 and the second floating member 453 are used to electrically connect a part of the variable resistor 451 to the first circuit 454, and disconnect the variable resistor 451 from the second circuit 455; the first floating member 452 is used to drive the first sliding structure 4511 to move, and the second floating member 453 is used to move the second sliding structure 4512, so that the resistance value of the part of the variable resistor 451 electrically connected to the first circuit 454 increases or decreases, and then the flow rate difference is obtained when the flow rate of the coolant in the large circulation pipe 41 is greater than the flow rate of the coolant in the small circulation pipe 42; The first floating member 452 and the second floating member 453 are used to electrically connect a part of the variable resistor 451 to the second circuit 455, and disconnect the variable resistor 451 from the first circuit 454; the first floating member 452 is also used to drive the second sliding structure 4512 to move, and the second floating member 453 is also used to drive the first sliding structure 4511 to move, so that the resistance value of the part of the variable resistor 451 electrically connected to the second circuit 455 increases or decreases, and then the flow rate difference is obtained when the flow rate of the coolant in the large circulation pipe 41 is less than the flow rate of the coolant in the small circulation pipe 42.

[0069] In this way, by setting the first circuit 454 and the second circuit 455, and when the flow rate of the coolant in the large circulation pipe 41 is greater than the flow rate of the coolant in the small circulation pipe 42, the first circuit 454 forms a passage through the first sliding structure 4511 and the second sliding structure 4512, and then the current difference is detected by the first circuit 454, and then the height difference is obtained, and finally the flow rate difference is obtained; when the flow rate of the coolant in the large circulation pipe 41 is less than the flow rate of the coolant in the small circulation pipe 42, the second circuit 455 forms a passage through the first sliding structure 4511 and the second sliding structure 4512, and then the current difference is detected by the second circuit 455, and then the height difference is obtained, and finally the flow rate difference is obtained; compared with the scheme of detecting the flow rate difference through one circuit, the above scheme can distinguish the size relationship between the flow rate of the coolant in the large circulation pipe 41 and the flow rate of the coolant in the small circulation pipe 42.

[0070] For example, see Figure 5 , the variable resistor 451 also includes a first resistor 4513, a second resistor 4514 and a sliding rod 4515; wherein:

[0071] The first resistor 4513 is disposed on the frame 10 .

[0072] The second resistor 4514 is disposed on the frame 10 , and the second resistor 4514 is disposed in parallel with the first resistor 4513 .

[0073] The sliding rod 4515 is disposed on the frame 10 , and the sliding rod 4515 is disposed between the second resistor 4514 and the first resistor 4513 , and the sliding rod 4515 is disposed parallel to the first resistor 4513 ; the first sliding structure 4511 and the second sliding structure 4512 are movably disposed on the sliding rod 4515 .

[0074] Among them, the first sliding structure 4511 and the second sliding structure 4512 are used to move along the sliding rod 4515, and when the height of the coolant in the large circulation detection tube 43 is higher than the height of the coolant in the small circulation detection tube 44, a part of the first resistor 4513 is electrically connected to the first circuit 454 through the first sliding structure 4511 and the second sliding structure 4512; when the height in the large circulation detection tube 43 is lower than the height in the small circulation detection tube 44, a part of the second resistor 4514 is electrically connected to the second circuit 455 through the first sliding structure 4511 and the second sliding structure 4512.

[0075] It can be understood that the first resistor 4513 is a resistor used to change the resistance value of the first circuit 454; for example, the first resistor 4513 can be a part of a sliding rheostat or a rheostat box, etc. The second resistor 4514 is a resistor used to change the resistance value of the second circuit 455; for example, the second resistor 4514 can be a part of a sliding rheostat or a rheostat box, etc. The sliding rod 4515 is a component used to guide the movement direction of the first sliding structure 4511 and the second sliding structure 4512.

[0076] In this way, by arranging the first resistor 4513, the second resistor 4514 and the sliding rod 4515 in parallel with each other, the ratio between the distance between the first sliding structure 4511 and the second sliding structure 4512 and the resistance value in the connected circuit is constant.

[0077] In some embodiments, see Figure 6 The first sliding structure 4511 includes a first sliding member 45111, a first movable conductor 45112, a second movable conductor 45113, a first elastic element 45114 and a second elastic element 45115; wherein:

[0078] The first sliding member 45111 is movably disposed on the sliding rod 4515, and the first sliding member 45111 has a first adjustment space and a second adjustment space; the first adjustment space is located at one end of the first sliding member 45111 close to the first resistor 4513, and the second adjustment space is located at one end of the first sliding member 45111 close to the second resistor 4514; the first adjustment through hole 451a is disposed on the side of the first sliding member 45111 facing the first floating member 452, and the first adjustment space is connected to the first adjustment through hole 451a, and the first floating member 452 is movably disposed in the first adjustment through hole 451a; the second adjustment through hole 451b is disposed on the side of the first sliding member 45111 facing the second floating member 453, and the second adjustment space is connected to the second adjustment through hole 451b, and the second floating member 453 is movably disposed in the second adjustment through hole 451b.

[0079] The first movable conductor 45112 is movably disposed in the first adjustment space. The first movable conductor 45112 is located between the first floating member 452 and the first resistor 4513 . One end of the first movable conductor 45112 facing away from the first resistor 4513 is electrically connected to the first circuit 454 .

[0080] The second movable conductor 45113 is movably disposed in the second adjustment space. The second movable conductor 45113 is located between the second floating member 453 and the second resistor 4514. One end of the second movable conductor 45113 facing away from the second resistor 4514 is electrically connected to the second circuit 455.

[0081] The first elastic element 45114 is disposed in the first adjustment space, and one end of the first elastic element 45114 is connected to the first movable conductor 45112, and the other end of the first elastic element 45114 is connected to a side of the first adjustment space away from the first resistor 4513; and

[0082] The second elastic element 45115 is disposed in the second adjustment space, and one end of the second elastic element 45115 is connected to the second movable conductor 45113, and the other end of the second elastic element 45115 is connected to a side of the second adjustment space away from the second resistor 4514;

[0083] Among them, when the first floating member 452 is used to push the first sliding structure 4511, the first floating member 452 is also used to push the first movable conductor 45112 to move toward the first resistor 4513 and abut against the first resistor 4513, so that the first resistor 4513 is electrically connected to the first circuit 454, the first floating member 452 is also used to drive the first movable conductor 45112 to move along the sliding rod 4515 through the first sliding member 45111, and the second floating member 453 is used to drive the second sliding structure 4512 to move, thereby changing the resistance value of the part of the first resistor 4513 electrically connected to the first circuit 454; the second elastic element 45115 drives the second movable conductor 45113 to retract into the second adjustment space, so that the second movable conductor 45113 is separated from the second resistor 4514 ; When the first floating member 452 is used to push the second sliding structure 4512, the second floating member 453 is used to push the second movable conductor 45113 to move toward the second resistor 4514 and abut against the second resistor 4514, so that one end of the second resistor 4514 is electrically connected to the second circuit 455, and the second floating member 453 is also used to drive the second movable conductor 45113 to move along the sliding rod 4515 through the first sliding member 45111, and the first floating member 452 is used to drive the second sliding structure 4512 to move, thereby changing the resistance value of the part of the second resistor 4514 electrically connected to the second circuit 455; the first elastic element 45114 drives the first movable conductor 45112 to retract into the first adjustment space, so that the first movable conductor 45112 is separated from the first resistor 4513.

[0084] It can be understood that the first sliding member 45111 is a component used to drive the first movable conductor 45112, the second movable conductor 45113, the first elastic element 45114 and the second elastic element 45115 to move along the sliding rod 4515; for example, the first sliding member 45111 can be a rectangular block or a rectangular shell, etc.

[0085] The first movable conductor 45112 is a component for electrically connecting the first resistor 4513 to the first circuit 454 or disconnecting the electrical connection between the first resistor 4513 and the first circuit 454; for example, the first movable conductor 45112 may be a movable block or a metal rod having a conductive wire.

[0086] The second movable conductor 45113 is a member for electrically connecting the second resistor 4514 to the second circuit 455 or disconnecting the electrical connection between the second resistor 4514 and the second circuit 455; for example, the second movable conductor 45113 may be a movable block or a metal rod having a conductive wire. The first elastic element 45114 is a member for driving the first movable conductor 45112; the first elastic element 45114 may be a spring or a rubber rope, etc. The second elastic element 45115 is a member for driving the second movable conductor 45113; the second elastic element 45115 may be a spring or a rubber rope, etc.

[0087] In this way, by respectively arranging the first movable conductor 45112 and the second movable conductor 45113 at both ends of the first sliding member 45111, and driving the first sliding member 45111 to move by the first floating member 452 or the second floating member 453, the first movable conductor 45112 can electrically connect one end of the first resistor 4513 to the first circuit 454, and can electrically connect one end of the second resistor 4514 to the second circuit 455; compared with the scheme of directly combining the sliding rheostat with the switch, the above scheme can determine the height relationship between the first floating member 452 and the second floating member 453 according to whether the first movable conductor 45112 is electrically connected to the first circuit 454 or according to whether the second movable conductor 45113 is electrically connected to the second circuit 455. By setting the first elastic element 45114 and the second elastic element 45115, the first movable conductor 45112 and the second movable conductor 45113 can return to their original positions, thereby disconnecting the electrical connection between the first resistor 4513 and the first circuit 454 and disconnecting the electrical connection between the second resistor 4514 and the second circuit 455; compared with the solution of directly setting two switches, the above solution can control whether the first circuit 454 and the second circuit 455 are connected without the need for an additional control device.

[0088] In some embodiments, see Figure 6 The second sliding structure 4512 includes a second sliding member 45121, a third movable conductor 45122, a fourth movable conductor 45123, a third elastic element 45124 and a fourth elastic element 45125; wherein:

[0089] The second sliding member 45121 is movably arranged on the sliding rod 4515, and the second sliding member 45121 has a third adjustment space, a fourth adjustment space, a third adjustment through hole 451c and a fourth adjustment through hole 451d; the third adjustment space is located at one end of the second sliding member 45121 close to the first resistor 4513, and the fourth adjustment space is located at one end of the second sliding member 45121 close to the second resistor 4514; the third adjustment through hole 451c is arranged on the side of the second sliding member 45121 facing the first floating member 452, and the third adjustment space is connected to the third adjustment through hole 451c, and the first floating member 452 is movably arranged in the third adjustment through hole 451c; the fourth adjustment through hole 451d is arranged on the side of the second sliding member 45121 facing the second floating member 453, and the fourth adjustment space is connected to the fourth adjustment through hole 451d, and the second floating member 453 is movably arranged in the fourth adjustment through hole 451d.

[0090] The third movable conductor 45122 is movably disposed in the third adjustment space. The third movable conductor 45122 is located between the first floating member 452 and the first resistor 4513 . One end of the third movable conductor 45122 facing away from the first resistor 4513 is electrically connected to the first circuit 454 .

[0091] The fourth movable conductor 45123 is movably disposed in the fourth adjustment space. The fourth movable conductor 45123 is located between the second floating member 453 and the second resistor 4514 . One end of the fourth movable conductor 45123 facing away from the second resistor 4514 is electrically connected to the second circuit 455 .

[0092] The third elastic element 45124 is disposed in the third adjustment space, and one end of the third elastic element 45124 is connected to the third movable conductor 45122 , and the other end of the third elastic element 45124 is connected to a side of the third adjustment space away from the first resistor 4513 .

[0093] The fourth elastic element 45125 is disposed in the fourth adjustment space, and one end of the fourth elastic element 45125 is connected to the fourth movable conductor 45123 , and the other end of the fourth elastic element 45125 is connected to a side of the fourth adjustment space away from the second resistor 4514 .

[0094] Wherein, when the second floating member 453 is used to push the second sliding structure 4512, the first floating member 452 is used to push the third movable conductor 45122 to move toward the first resistor 4513 and abut against the first resistor 4513, so that one end of the first resistor 4513 is electrically connected to the first circuit 454, and the second floating member 453 is also used to drive the third movable conductor 45122 to move along the sliding rod 4515 through the second sliding member 45121, so that the other end of the first resistor 4513 is electrically connected to the first circuit 454; the fourth elastic element 45125 drives the fourth movable conductor 45123 to retract into the fourth adjustment space, so that the fourth movable conductor 451 23 is separated from the second resistor 4514; when the first floating member 452 is used to push the second sliding structure 4512, the second floating member 453 is used to push the fourth movable conductor 45123 to move toward the second resistor 4514 and abut against the second resistor 4514, so that one end of the second resistor 4514 is electrically connected to the second circuit 455, the second floating member 453 is also used to drive the second movable conductor 45113 to move along the sliding rod 4515 through the first sliding member 45111, and the third elastic element 45124 drives the third movable conductor 45122 to retract into the third adjustment space, so that the third movable conductor 45122 is separated from the first resistor 4513.

[0095] It can be understood that the second sliding member 45121 is a member used to drive the third movable conductor 45122, the fourth movable conductor 45123, the third elastic element 45124 and the fourth elastic element 45125 to move along the sliding rod 4515; for example, the second sliding member 45121 can be a rectangular block or a rectangular shell. The third movable conductor 45122 is a member used to electrically connect the first resistor 4513 to the first circuit 454 or disconnect the electrical connection between the first resistor 4513 and the first circuit 454; for example, the third movable conductor 45122 can be a movable block or a metal rod with a wire. The fourth movable conductor 45123 is a member used to electrically connect the second resistor 4514 to the second circuit 455 or disconnect the electrical connection between the second resistor 4514 and the second circuit 455; for example, the fourth movable conductor 45123 has a movable block or a metal rod with a wire. The third elastic element 45124 is a member for driving the third movable conductor 45122; the third elastic element 45124 may be a spring or a rubber rope, etc. The fourth elastic element 45125 is a member for driving the fourth movable conductor 45123; the fourth elastic element 45125 may be a spring or a rubber rope, etc.

[0096] In this way, by respectively arranging the third movable conductor 45122 and the fourth movable conductor 45123 at the two ends of the second sliding member 45121, and driving the second sliding member 45121 to move through the first floating member 452 or the second floating member 453, the third movable conductor 45122 can electrically connect one end of the first resistor 4513 to the first circuit 454, and make one end of the second resistor 4514 electrically connected to one end of the second resistor 4514 electrically connected to the second circuit 455; compared with the scheme of directly combining the sliding rheostat with the switch, the above scheme can determine the height relationship between the first floating member 452 and the second floating member 453 according to whether the third movable conductor 45122 is electrically connected to the first circuit 454 or according to whether the fourth movable conductor 45123 is electrically connected to the second circuit 455. By setting the third elastic element 45124 and the fourth elastic element 45125, the third movable conductor 45122 and the fourth movable conductor 45123 can return to their original positions, thereby disconnecting the electrical connection between the first resistor 4513 and the first circuit 454 and disconnecting the electrical connection between the second resistor 4514 and the second circuit 455; compared with the solution of directly setting two switches, the above solution can control whether the first circuit 454 and the second circuit 455 are connected without the need for additional control devices.

[0097] Optionally, in some embodiments, see Figure 6 The first floating member 452 includes a first floating body 4521, a first active member 4522, a fifth elastic element 4523, a first pushing member 4524, a sixth elastic member 4525, a first locking member 4526 and a seventh elastic member 4527; wherein:

[0098] The first floating body 4521 is movably arranged in the first adjustment through hole 451a and the third adjustment through hole 451c, and one end of the first floating body 4521 is arranged in the large circulation detection tube 43; the first floating body 4521 has a first space 452a, a first pushing hole and a first active hole, the first space 452a is respectively connected to the first pushing hole and the first active hole, and the depth direction of the first pushing hole is perpendicular to the depth direction of the first active hole.

[0099] The first active member 4522 is movably disposed in the first space 452a. A first protrusion 4528 is protruded from an outer wall of the first active member 4522, and the first protrusion 4528 is located at a position of the first active member 4522 close to the first active hole.

[0100] The fifth elastic element 4523 is disposed in the first space 452a, and one end of the fifth elastic element 4523 is connected to the side wall of the first active member 4522 facing the first active hole, and the other end of the fifth elastic element 4523 is connected to the inner wall of the first space 452a having the first active hole.

[0101] The first pushing member 4524 is movably disposed in the first pushing hole. The first pushing member 4524 has a first locking through hole. The depth direction of the first locking through hole is consistent with the depth direction of the first pushing hole.

[0102] The sixth elastic element 4525 is disposed in the first space 452a, one end of the sixth elastic element 4525 is connected to the side of the first pushing member 4524 facing the first active member 4522, and the other end of the sixth elastic element 4525 is connected to the inner wall of the first space 452a opposite to the inner wall having the first pushing hole.

[0103] The first locking member 4526 is movably disposed in the first locking through hole.

[0104] The seventh elastic element 4527 is disposed in the first space 452a, one end of the seventh elastic element 4527 is connected to the side of the first locking member 4526 facing the first active member 4522, and the other end of the seventh elastic element 4527 is connected to the inner wall of the first space 452a opposite to the inner wall having the first pushing hole.

[0105] The first floating body 4521 is used to push the first movable conductor 45112 toward the first resistor 4513 when the first floating member 452 pushes the first sliding structure 4511 to move, so that the first movable conductor 45112 abuts against the side wall of the first resistor 4513. At the same time, the first active member 4522 is used to push the first push member 4524 toward the third movable conductor 45122, so that the third movable conductor 45122 abuts against the side wall of the first resistor 4513. The seventh elastic element 4527 is used to drive the first card The stop member 4526 retracts into the first stopping hole; the fifth elastic element 4523 is used to push the first active member 4522 to move along the first active hole toward the external space when the first floating member 452 pushes the second sliding structure 4512 to move, so that the sixth elastic element 4525 can drive the first pushing member 4524 to retract into the first pushing hole, and at the same time, the first active member 4522 pushes the first stopping member 4526 to move toward the third movable conductor 45122, thereby enabling the first floating member 452 to drive the second sliding structure 4512 to move.

[0106] It can be understood that the first floating body 4521 is a member used to drive the first active member 4522, the fifth elastic element 4523, the first pusher 4524, the sixth elastic element 4525, the first stopper 4526 and the seventh elastic element 4527 to move; for example, the first floating body 4521 can be a hollow rod or a rod with a floating member at one end. The first active member 4522 is a member used to push the first pusher 4524 or the first stopper 4526; for example, the first active member 4522 can be a cylindrical rod or a rectangular block. The fifth elastic element 4523 is a member used to return the first movable conductor 45112 to its original position; for example, the fifth elastic element 4523 can be a spring or an elastic rope. The first pusher 4524 is a member used to push the third movable conductor 45122; for example, the first pusher 4524 can be a rectangular block or a rectangular shell. The sixth elastic element 4525 is a member for returning the first pusher 4524 to its original position; the sixth elastic element 4525 may be a spring or an elastic rope, etc. The first stopper 4526 is a member for cooperating with the first floating body 4521 to hold the second sliding structure 4512; for example, the first stopper 4526 may be a rectangular block or a cylindrical shell, etc. The seventh elastic element 4527 is a member for returning the first stopper 4526 to its original position; for example, the seventh elastic element 4527 may be a spring or an elastic rope, etc.

[0107] In this way, when the first floating member 452 is used to push the first sliding structure 4511 to move, the first sliding member 45111 pushes the first active member 4522 to move toward the large circulation detection tube 43, so that the first pushing member 4524 and the first floating body 4521 push the first movable conductor 45112 and the third movable conductor 45122 to move toward the first resistor 4513, and at the same time the seventh elastic element 4527 drives the first stopping member 4526 to retract into the first stopping through hole; and when the first floating member 452 is used to push the second sliding structure 4512 to move, the fifth elastic element 4523 drives the first active member 4522 to move back to the large circulation detection tube 43, so as to push the first stopping member 4526 to move toward the external space, and at the same time the sixth elastic element 4525 drives the first pushing member 4524 to retract into the first pushing hole. The above solution can automatically control whether the first resistor 4513 is electrically connected to the first circuit 454 and whether the first circuit 454 is in a connection state according to the control of the first floating member 452 on the first sliding structure 4511 and the second sliding structure 4512 .

[0108] Optionally, see Figure 6The second floating member 453 includes a second floating body 4531, a second active member 4532, an eighth elastic element 4533, a second pushing member 4534, a ninth elastic element 4535, a second locking member 4536 and a tenth elastic element 4537; wherein:

[0109] The second floating body 4531 is movably arranged in the second adjustment through hole 451b and the fourth adjustment through hole 451d, and one end of the second floating body 4531 is arranged in the small circulation detection tube 44; the second floating body 4531 has a second space 453a, a second pushing hole and a second active hole, and the second space 453a is respectively connected with the second pushing hole and the second active hole, and the depth direction of the second pushing hole is perpendicular to the depth direction of the second active hole.

[0110] The second active member 4532 is movably disposed in the second space 453a. A second protrusion 4538 is protruded from the outer wall of the second active member 4532. The second protrusion 4538 is connected to the side wall of the second active member 4532 and is located at a position of the second active member 4532 close to the second active hole.

[0111] The eighth elastic element 4533 is disposed in the second space 453a, and one end of the eighth elastic element 4533 is connected to the side wall of the second active member 4532 facing the second active hole, and the other end of the eighth elastic element 4533 is connected to the inner wall of the second space 453a having the second active hole.

[0112] The second pushing member 4534 is movably disposed in the second pushing hole. The second pushing member 4534 has a second locking through hole. The depth direction of the second locking through hole is consistent with the depth direction of the second pushing hole.

[0113] The ninth elastic element 4535 is disposed in the second space 453a, one end of the ninth elastic element 4535 is connected to the side of the second pushing member 4534 facing the second active member 4532, and the other end of the ninth elastic element 4535 is connected to the inner wall of the second space 453a opposite to the inner wall having the second pushing hole.

[0114] The second locking member 4536 is movably disposed in the second locking through hole.

[0115] The tenth elastic element 4537 is disposed in the second space 453a, one end of the tenth elastic element 4537 is connected to the side of the second locking member 4536 facing the second active member 4532, and the other end of the tenth elastic element 4537 is connected to the inner wall of the second space 453a opposite to the inner wall having the second push hole.

[0116] The second floating body 4531 is used to push the second movable conductor 45113 toward the second resistor 4514 when the second floating member 453 pushes the first sliding structure 4511 to move, so that the second movable conductor 45113 abuts against the side wall of the second resistor 4514. At the same time, the second active member 4532 is used to push the second pusher 4534 toward the fourth movable conductor 45123, so that the fourth movable conductor 45123 abuts against the side wall of the second resistor 4514. The tenth elastic element 4537 is used to drive the second card The stop member 4536 retracts into the second stopping hole; the eighth elastic element 4533 is used to push the second active member 4532 to move along the second active hole toward the external space when the second floating member 453 pushes the second sliding structure 4512 to move, so that the ninth elastic element 4535 can drive the second pushing member 4534 to retract into the second pushing hole, and at the same time, the second active member 4532 pushes the second stopping member 4536 to move toward the fourth movable conductor 45123, thereby enabling the second floating member 453 to drive the second sliding structure 4512 to move.

[0117] It can be understood that the second floating body 4531 is a member used to drive the second active member 4532, the eighth elastic element 4533, the second pusher 4534, the ninth elastic element 4535, the second stopper 4536 and the tenth elastic element 4537; for example, the second floating body 4531 can be a hollow rod or a rod with a floating member at one end. The second active member 4532 is a member used to push the second pusher 4534 or the second stopper 4536; for example, the first active member 4522 can be a cylindrical rod or a rectangular block. The eighth elastic element 4533 is a member used to return the second movable conductor 45113 to its original position; for example, the eighth elastic element 4533 can be a spring or an elastic rope. The second pusher 4534 is a member used to push the fourth movable conductor 45123; for example, the second pusher 4534 can be a rectangular block or a rectangular shell. The ninth elastic element 4535 is a member for returning the second pusher 4534 to its original position; the ninth elastic element 4535 may be a spring or an elastic rope, etc. The second stopper 4536 is a member for cooperating with the second floating body 4531 to hold the second sliding structure 4512; for example, the second stopper 4536 may be a rectangular block or a cylindrical shell, etc. The tenth elastic element 4537 is a member for returning the second stopper 4536 to its original position; for example, the tenth elastic element 4537 may be a spring or an elastic rope, etc.

[0118] In such a configuration, when the second floating member 453 is used to push the first sliding structure 4511 to move, the first sliding member 45111 pushes the second active member 4532 to move toward the small circulation detection tube 44, so that the second pushing member 4534 and the second floating body 4531 push the second movable conductor 45113 and the fourth movable conductor 45123 to move toward the second resistor 4514, and at the same time, the tenth elastic element 4537 drives the second stopping member 4536 to retract into the second stopping through hole; and when the second floating member 453 is used to push the second sliding structure 4512 to move, the eighth elastic element 4533 drives the second active member 4532 to move back to the small circulation detection tube 44, so as to push the second stopping member 4536 to move toward the external space, and at the same time, the ninth elastic element 4535 drives the second pushing member 4534 to retract into the second pushing hole. The above solution can automatically control whether the second resistor 4514 is electrically connected to the second circuit 455 and whether the second circuit 455 is in a connection state according to the control of the first sliding structure 4511 and the second sliding structure 4512 by the second floating member 453.

[0119] In some embodiments, see Figure 5 The first circuit 454 includes a first ammeter 4541 and a first power supply 4542; the second circuit 455 includes a second ammeter 4551 and a second power supply 4552, the resistance of the second ammeter 4551 is the same as the resistance of the first ammeter 4541; the voltage of the second power supply 4552 is the same as the voltage of the first power supply 4542.

[0120] In this way, by setting the resistance of the second ammeter 4551 to be the same as the resistance of the first ammeter 4541, the voltage of the second power supply 4552 is set to be the same as the voltage of the first power supply 4542; compared with the scheme of using the second ammeter 4551 and the first ammeter 4541 with different resistance values ​​and the second power supply 4552 and the first power supply 4542 with different voltages, the above scheme can simplify the thermostat sensitivity test equipment 100 while measuring the same resistance value.

[0121] In some embodiments, see Figure 4 The temperature control unit 20 includes a heating device 21 and a temperature measuring device 22; wherein:

[0122] The heating device 21 is disposed on the frame 10 and is located below the liquid storage space 10 a . The heating device 21 is used to heat the coolant in the liquid storage space 10 a .

[0123] The temperature measuring device 22 is disposed in the liquid storage space 10 a , and is used to detect the temperature of the coolant in the liquid storage space 10 a .

[0124] It can be understood that the heating device 21 is a device for controlling the temperature of the coolant in the liquid storage space 10a; the heating device 21 can be an electric heating wire heating device or an electromagnetic heating device, etc. The temperature measuring device 22 is a device for detecting the temperature of the coolant in the liquid storage space 10a; the temperature measuring device 22 can be a thermometer or a temperature sensor, etc.

[0125] In this arrangement, the temperature information of the coolant is detected by the temperature measuring device 22, and the temperature information is sent to the heating device 21, so that the heating device 21 performs temperature control according to the temperature information and the required temperature; compared with the solution of directly inputting coolant of different temperatures into the automobile thermostat, the above solution can conveniently control the temperature of the coolant.

[0126] In some embodiments, see Figure 3 , the extraction part 30 includes an extraction device 31 and an extraction pipe 32; wherein:

[0127] The extraction device 31 is disposed in the liquid storage space 10a.

[0128] One end of the extraction pipe 32 is connected to the output end of the extraction device 31 , and the other end of the extraction pipe 32 extends to the external space and is connected to the connection end.

[0129] It can be understood that the extraction device 31 is a device for conveying the coolant in the liquid storage space 10a into the automobile thermostat; for example, the extraction device 31 can be a small piston pump or a centrifugal water pump, etc. The extraction pipe 32 is a pipe for introducing the coolant in the liquid storage space 10a into the automobile thermostat.

[0130] With such arrangement, the coolant in the liquid storage space 10a is transported into the automobile thermostat through the extraction device 31 and the extraction pipe 32; compared with the solution of connecting the automobile thermostat to the liquid storage space 10a, the above solution can control the initial speed of the coolant entering the automobile thermostat.

[0131] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. An automobile thermostat sensitivity test device, characterized in that: The automobile thermostat has a connection end connected to the engine, a large circulation output end and a small circulation output end. The automobile thermostat sensitivity test equipment includes: A frame having a liquid storage space for placing a coolant; a temperature control unit, disposed on the frame and at least partially located in the liquid storage space; an extraction part, which is arranged on the frame, wherein the output end of the extraction part is used to be connected to the connection end, and the input end of the extraction part is located in the liquid storage space; and A detection unit is arranged on the frame, one end of the detection unit is connected to the large circulation output end, and the other end is connected to the small circulation output end; the detection unit includes a large circulation detection tube, a small circulation detection tube and a detection device; Wherein, the temperature control unit is used to control the temperature of the coolant in the liquid storage space, so that the extraction unit delivers coolant of different temperatures to the automobile thermostat, and then the automobile thermostat delivers the coolant to the detection unit through the large circulation output end and / or the small circulation output end, and the detection unit detects the flow rate difference between the large circulation output end and the small circulation output end, so as to determine the sensitivity of the automobile thermostat to the coolant temperature through the flow rate difference and the corresponding coolant temperature; The detection device comprises: A variable resistor, arranged on the frame, the variable resistor comprising a first sliding structure and a second sliding structure, the first sliding structure having a first adjustment through hole and a second adjustment through hole respectively located at two ends of the first sliding structure; the second sliding structure having a third adjustment through hole and a fourth adjustment through hole respectively located at two ends of the second sliding structure; A first floating member is movably disposed in the first adjustment through hole and the third adjustment through hole, and one end of the first floating member is disposed in the large circulation detection tube; and A second floating member is movably disposed in the second adjustment through hole and the fourth adjustment through hole, and one end of the second floating member is disposed in the small circulation detection tube; Among them, the first floating member is used to drive the first sliding structure to move and the second floating member is used to drive the second sliding structure to move, so as to adjust the resistance of the variable resistor in the circuit; the first floating member is also used to drive the second sliding structure to move and the second floating member is also used to drive the first sliding structure to move, so as to adjust the resistance of the variable resistor in the circuit.

2. The automobile thermostat sensitivity testing device according to claim 1, characterized in that: The detection unit also includes: a large circulation pipe, one end of which is connected to the large circulation output end, and the other end of which is connected to the liquid storage space; and A small circulation pipe, one end of which is connected to the small circulation output end, and the other end of which is connected to the liquid storage space; Wherein, one end of the large circulation detection tube is connected to the side of the large circulation tube facing away from the ground, and the large circulation detection tube is connected to the large circulation tube; One end of the small circulation detection tube is connected to the side of the small circulation tube facing away from the ground, and the small circulation detection tube is in communication with the small circulation tube; and The detection device is arranged on the frame; the large circulation detection end of the detection device is arranged in the large circulation detection tube, and the small circulation detection end is arranged in the small circulation detection tube; Among them, the large circulation detection tube is used to react the flow rate in the large circulation tube through the height of the liquid level, and the small circulation detection tube is used to react the flow rate in the small circulation tube through the height of the liquid level, and indirectly reflects the flow rate difference between the coolant in the large circulation tube and the coolant in the small circulation tube through the difference in liquid level height between the large circulation detection tube and the small circulation detection tube.

3. The automobile thermostat sensitivity testing device according to claim 2, characterized in that: The detection device also includes: a first circuit, which is disposed on the frame, and a part of the variable resistor is electrically connected to the first circuit, one end of the first circuit is electrically connected to one end of the first sliding structure close to the first circuit, and the other end of the first circuit is electrically connected to the other end of the second sliding structure; and A second circuit is arranged on the frame, and another part of the variable resistor is electrically connected to the second circuit, one end of the second circuit is electrically connected to the other end of the first sliding structure close to the second circuit, and the other end of the second circuit is electrically connected to the other end of the second sliding structure; Among them, when the flow rate of the coolant in the large circulation pipe is greater than the flow rate of the coolant in the small circulation pipe, the first floating component and the second floating component are used to electrically connect a part of the variable resistor to the first circuit, and disconnect the other part from the second circuit; when the flow rate of the coolant in the large circulation pipe is less than the flow rate of the coolant in the small circulation pipe, the first floating component and the second floating component are used to electrically connect a part of the variable resistor to the second circuit, and disconnect the variable resistor from the first circuit.

4. The automobile thermostat sensitivity testing device according to claim 3, characterized in that: The variable resistor also includes: A first resistor, wherein the first resistor is arranged on the frame; A second resistor, the second resistor is arranged on the frame, and the second resistor is arranged in parallel with the first resistor; and A sliding rod, the sliding rod is arranged on the frame, the sliding rod is arranged between the second resistor and the first resistor, and the sliding rod is arranged in parallel with the first resistor; the first sliding structure and the second sliding structure are movably arranged on the sliding rod; Wherein, the first sliding structure and the second sliding structure are used to move along the sliding rod, and when the height of the coolant in the large circulation detection tube is higher than the height of the coolant in the small circulation detection tube, a part of the first resistor is electrically connected to the first circuit through the first sliding structure and the second sliding structure; when the height in the large circulation detection tube is lower than the height in the small circulation detection tube, a part of the second resistor is electrically connected to the second circuit through the first sliding structure and the second sliding structure.

5. The automobile thermostat sensitivity testing device according to claim 4, characterized in that: The first sliding structure comprises: A first sliding member is movably arranged on the sliding rod; the first sliding member has a first adjustment space and a second adjustment space, the first adjustment space is located at one end of the first sliding member close to the first resistor, and the second adjustment space is located at the other end of the first sliding member; the first adjustment through hole is arranged on a side of the first sliding member facing the first floating member, and the first adjustment space is connected to the first adjustment through hole; the second adjustment through hole is arranged on a side of the first sliding member facing the second floating member, and the second adjustment space is connected to the second adjustment through hole; A first movable conductor is movably disposed in the first adjustment space, the first movable conductor is located between the first floating member and the first resistor, and one end of the first movable conductor facing away from the first resistor is electrically connected to the first circuit; A second movable conductor is movably disposed in the second adjustment space, the second movable conductor is located between the second floating member and the second resistor, and one end of the second movable conductor facing away from the second resistor is electrically connected to the second circuit; a first elastic element, disposed in the first adjustment space, with one end of the first elastic element connected to the first movable conductor, and the other end of the first elastic element connected to a side of the first adjustment space away from the first resistor; and A second elastic element is disposed in the second adjustment space, and one end of the second elastic element is connected to the second movable conductor, and the other end of the second elastic element is connected to a side of the second adjustment space away from the second resistor; Among them, the first floating member is used to push the first movable conductor so that the first resistor is electrically connected to the first circuit, and the first floating member is also used to drive the first movable conductor to move through the first sliding member to adjust the position of the first resistor electrically connected to the first circuit, and the second elastic element drives the second movable conductor to separate from the second resistor; the second floating member is used to push the second movable conductor so that one end of the second resistor is electrically connected to the second circuit, and the second floating member is also used to drive the second movable conductor to move through the first sliding member to adjust the position of the second resistor electrically connected to the second circuit; the first elastic element drives the first movable conductor to separate from the first resistor.

6. The automobile thermostat sensitivity testing device according to claim 5, characterized in that: The second sliding structure comprises: A second sliding member is movably arranged on the sliding rod; the second sliding member has a third adjustment space and a fourth adjustment space, the third adjustment space is located at one end of the second sliding member close to the first resistor, and the fourth adjustment space is located at the other end of the second sliding member; the third adjustment through hole is arranged on a side of the second sliding member facing the first floating member, and the third adjustment space is connected to the third adjustment through hole; the fourth adjustment through hole is arranged on a side of the second sliding member facing the second floating member, and the fourth adjustment space is connected to the fourth adjustment through hole; A third movable conductor is movably disposed in the third adjustment space, the third movable conductor is located between the first floating member and the first resistor, and one end of the third movable conductor facing away from the first resistor is electrically connected to the first circuit; a fourth movable conductor, movably disposed in the fourth adjustment space, the fourth movable conductor being located between the second floating member and the second resistor, and one end of the fourth movable conductor facing away from the second resistor being electrically connected to the second circuit; a third elastic element, disposed in the third adjustment space, with one end of the third elastic element connected to the third movable conductor, and the other end of the third elastic element connected to a side of the third adjustment space away from the first resistor; and a fourth elastic element, disposed in the fourth adjustment space, with one end of the fourth elastic element connected to the fourth movable conductor, and the other end of the fourth elastic element connected to a side of the fourth adjustment space away from the second resistor; Among them, the first floating member is used to push the third movable conductor to make the first resistor electrically connected to the first circuit, and the first floating member is also used to drive the third movable conductor to move through the second sliding member to adjust the position of the first resistor electrically connected to the first circuit, and the fourth elastic element drives the fourth movable conductor to separate from the second resistor; the second floating member is used to push the fourth movable conductor to make one end of the second resistor electrically connected to the second circuit, and the second floating member is also used to drive the second movable conductor to move through the first sliding member to adjust the position of the second resistor electrically connected to the second circuit, and the third elastic element drives the third movable conductor to separate from the first resistor.

7. The automobile thermostat sensitivity testing device according to claim 6, characterized in that: The first floating member comprises: A first floating body is movably disposed in the first adjustment through hole and the third adjustment through hole, and one end of the first floating body is disposed in the large circulation detection tube; the first floating body has a first space, a first pushing hole and a first active hole, the first space is respectively connected to the first pushing hole and the first active hole, and the first pushing hole is perpendicular to the depth direction of the first active hole; A first active member is movably disposed in the first space, a first protrusion is convexly disposed on an outer wall of the first active member, and the first protrusion is located at a position of the first active member close to the first active hole; a fifth elastic element, disposed in the first space, wherein one end of the fifth elastic element is connected to the side wall of the first active member facing the first active hole, and the other end is connected to the inner wall of the first space having the first active hole; A first pushing member is movably disposed in the first pushing hole, the first pushing member has a first locking through hole, and a depth direction of the first locking through hole is consistent with a depth direction of the first pushing hole; a sixth elastic element, disposed in the first space, wherein one end of the sixth elastic element is connected to a side of the first pushing member facing the first active member, and the other end of the sixth elastic element is connected to an inner side wall of the first space opposite to the inner side wall having the first pushing hole; A first locking member is movably disposed in the first locking through hole; and a seventh elastic element, disposed in the first space, one end of the seventh elastic element being connected to a side of the first locking member facing the first active member, and the other end of the seventh elastic element being connected to an inner side wall of the first space opposite to the inner side wall having the first pushing hole; Among them, the first floating body is used to drive the first movable conductor to make one end of the first resistor electrically connected to the first circuit, the first active member is used to push the first pushing member and the third movable conductor to make the other end of the first resistor electrically connected to the first circuit, and the seventh elastic element is used to drive the first stopping member to retract into the first stopping through hole; the fifth elastic element is used to drive the first active member to move toward the external space, and the sixth elastic element is used to drive the first pushing member to retract into the first pushing hole, and the first active member pushes the first stopping member to move toward the third movable conductor, thereby enabling the first floating member to drive the second sliding structure to move.

8. The automobile thermostat sensitivity testing device according to claim 7, characterized in that: The second floating member comprises: A second floating body is movably disposed in the second adjustment through hole and the fourth adjustment through hole, and one end of the second floating body is disposed in the small circulation detection tube; the second floating body has a second space, a second pushing hole and a second active hole, the second space is respectively connected to the second pushing hole and the second active hole, and the second pushing hole is perpendicular to the depth direction of the second active hole; A second active member is movably disposed in the second space, and a second protrusion is convexly disposed on an outer side wall of the second active member; an eighth elastic element, disposed in the second space, and having one end connected to the side wall of the second active member facing the second active hole, and the other end connected to the inner wall of the second space having the second active hole; A second pushing member is movably disposed in the second pushing hole, the second pushing member has a second locking through hole, and the second locking through hole is consistent in depth direction with the second pushing hole; a ninth elastic element, disposed in the second space, wherein one end of the ninth elastic element is connected to a side of the second pushing member facing the second active member, and the other end of the ninth elastic element is connected to an inner side wall of the second space opposite to the inner side wall having the second pushing hole; A second locking member is movably disposed in the second locking through hole; and a tenth elastic element, disposed in the second space, wherein one end of the tenth elastic element is connected to a side of the second locking member facing the second active member, and the other end is connected to an inner side wall of the second space opposite to the inner side wall having the second pushing hole; Among them, the second floating body is used to drive the second movable conductor to connect one end of the second resistor to the second circuit, the second active member is used to push the second pushing member and the fourth movable conductor to electrically connect the other end of the second resistor to the second circuit, and the tenth elastic element is used to drive the second stopping member to retract into the second stopping through hole; the eighth elastic element is used to drive the second active member to move toward the external space, and the ninth elastic element is used to drive the second pushing member to retract into the second pushing hole, and the second active member pushes the second stopping member to move toward the fourth movable conductor, so that the second floating member can drive the second sliding structure to move.

9. The automobile thermostat sensitivity testing device according to claim 3, characterized in that: The first circuit includes a first ammeter and a first power supply; the second circuit includes a second ammeter and a second power supply, the resistance of the second ammeter is the same as the resistance of the first ammeter; the voltage of the second power supply is the same as the voltage of the first power supply.

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