Water supply mechanism of hygrothermal system in high and low temperature alternating damp heat test chamber

Abstract

The utility model discloses a kind of water supply mechanism of high-low temperature alternating damp-heat test chamber in damp-heat system, including liquid supply seat, driving seat and plunger assembly, liquid supply seat is fixedly installed in the top end of driving seat, its both sides are respectively equipped with liquid inlet valve and liquid outlet valve;Driving seat is rotatably installed with pivot seat, bottom is equipped with motor-driven pivot rotation;Plunger assembly includes cylinder sleeve and column stem, piston cavity is equipped in cylinder sleeve and is embedded with heating wire, column stem one end is slidably sleeved in piston cavity. The top surface of pivot seat is inclined plane structure and is equipped with bearing ring, column stem bottom end is equipped with slide head and bearing ring contact, column stem is externally equipped with return spring, to realize plunger reciprocating motion;Heating wire is used to heat water, improve water supply temperature. The device compact structure, stable operation, can realize efficient, stable one-way water supply, and have liquid heating function, suitable for high performance humidification demand in high-low temperature alternating damp-heat test system.

Description

Technical Field

[0001] This utility model relates to the field of environmental testing equipment technology, specifically to a water supply mechanism for a humidity and heat system in a high and low temperature alternating humidity and heat test chamber. Background Technology

[0002] High and low temperature alternating humidity test chambers are a type of testing equipment used to test the performance stability of electronic devices, materials, and complete equipment under alternating high temperature, low temperature, and high humidity environments. Their core humidity system typically includes a water supply unit, a heating unit, an evaporation unit, and a humidity control module. The water supply mechanism, as a key component, directly affects the humidity regulation capability and system stability of the test environment.

[0003] Currently, most water supply systems use electromagnetic pumps or peristaltic pumps to transport water. While these systems offer a degree of automation, they suffer from the following significant drawbacks:

[0004] Complex structure and strong control dependence: Existing systems mostly rely on electronically controlled actuators for water supply regulation, such as servo-controlled plunger motors or electromagnetically controlled water valves. The large number of components and high installation requirements increase system costs and maintenance difficulty, and electronic control failures are prone to occur in high and low temperature alternating environments.

[0005] Uncontrollable or delayed liquid supply temperature: Some existing technologies do not have an efficient water preheating module, or the heating device is located far from the liquid path, resulting in a lag in liquid supply temperature control and errors in the adjustment of the humid and hot environment, making it difficult to meet the needs of precision experiments.

[0006] In summary, the existing water supply mechanism of the damp heat test chamber still has many shortcomings in terms of stability, heating efficiency, and structural reliability. There is an urgent need to propose an improved scheme that is simple in structure, sensitive in response, and reliable in temperature control to meet the requirements for long-term reliable operation under alternating high and low temperature damp heat environments. Utility Model Content

[0007] This utility model aims to solve one of the technical problems existing in the prior art or related technologies.

[0008] Therefore, the technical solution adopted by this utility model is as follows: a water supply mechanism for a humidity and heat system in a high and low temperature alternating humidity and heat test chamber, comprising: a liquid supply seat, a drive seat, and a plunger assembly. The liquid supply seat is located at the top of the drive seat and is used for inputting and outputting liquid. The drive seat has a built-in rotary drive mechanism to realize the mechanical reciprocating motion of the plunger. The plunger assembly, after receiving the rotary drive force, realizes water intake, drainage, and liquid heating treatment. The water supply mechanism includes a liquid supply seat, a drive seat, and a plunger assembly. The liquid supply seat is fixedly installed at the top of the drive seat, with an inlet valve and an outlet valve on both sides for controlling the unidirectional input and output of liquid. A rotating shaft seat is rotatably installed inside the drive seat, and a motor is installed at the bottom to drive the rotating shaft to rotate. The plunger assembly includes a cylinder sleeve and a plunger rod. The cylinder sleeve has a piston chamber and a heating wire embedded therein, and one end of the plunger rod slides into the piston chamber to realize the liquid intake and drainage action.

[0009] Specifically, the mechanically driven reciprocating water supply is achieved through the cooperation of the column rod and the inclined structure on the rotating shaft seat, which reduces the dependence on electrical control components and improves the stability and reliability of the water supply system.

[0010] In a preferred embodiment, the motor is further configured such that an output shaft is fixedly connected to the output end of the motor, and the surface of the shaft seat is provided with a gear ring structure that meshes with the output shaft for transmission.

[0011] Specifically, this gear transmission mechanism simplifies the force transmission path, ensuring that the rotating shaft seat can smoothly output rotational force under the action of the motor, thereby achieving a highly efficient and precise plunger pump drive effect.

[0012] In a preferred example, the shaft seat is further configured such that: the top surface of the shaft seat is a sloping structure, a bearing ring is installed on the sloping surface, a sliding head is provided at the bottom end of the column rod for sliding contact with the bearing ring, and a return spring is provided on the outside of the column rod, with its upper and lower ends respectively abutting the bottom surface of the cylinder liner and the top surface of the sliding head.

[0013] Specifically, the structure utilizes the up-and-down movement of the inclined plane formed by the rotation of the shaft to achieve the reciprocating motion of the plunger, while a return spring provides auxiliary return force to enhance the stability and flexibility of the plunger's action.

[0014] In a preferred embodiment, the inlet valve and outlet valve are both one-way valve tube structures, respectively connected to both ends of the piston chamber, for realizing one-way liquid input and output.

[0015] Specifically, this liquid control path can effectively prevent backflow and air resistance, improve the directionality of liquid supply and the suction and discharge efficiency of the plunger pump, and is suitable for high-frequency circulating water supply scenarios.

[0016] In a preferred embodiment, the bearing ring is further configured as follows: the bearing ring is a planar bearing structure with an inclined guide angle on its bottom surface, which, together with the sliding head, achieves low-resistance sliding.

[0017] Specifically, this structure reduces frictional resistance during the reciprocating motion of the plunger, extends the life of the device, and improves the smoothness of the mechanism's operation and sealing stability.

[0018] In a preferred embodiment, the heating wire is further configured as follows: the heating wire is an annular resistance wire heater, which is mounted around the outer wall of the piston chamber for instantaneous heating of the supplied liquid.

[0019] Specifically, the surround heating structure fits the pump chamber wall, resulting in high thermal efficiency and fast heating response. It can simultaneously complete the water supply and heating process, meeting the test chamber's requirements for high-temperature and humid environments.

[0020] In summary, this invention achieves efficient water supply by driving the plunger assembly through a mechanical inclined plane drive, resulting in a compact structure and high stability. Furthermore, the inclusion of a water heating device and a one-way valve ensures efficient liquid supply and temperature control. The overall structure is suitable for various environmental testing equipment, particularly for long-term operation under alternating high and low temperature and humidity conditions, demonstrating promising prospects for application and promotion.

[0021] The beneficial effects achieved by this utility model are as follows:

[0022] 1. In this utility model, by setting the top surface of the rotating shaft seat to be inclined and cooperating with the plunger assembly of the sliding structure, the mechanical plunger reciprocating motion without the need for a complex electrical control mechanism is realized, thereby efficiently completing the water supply suction and discharge action, simplifying the structure, reducing the failure rate, and improving the stability and service life of the equipment.

[0023] 2. In this utility model, a heating wire is embedded in the inner wall of the piston chamber, which can heat the water in real time as it enters the piston chamber, thereby improving the response speed of the water supply temperature and meeting the high requirements of the high and low temperature alternating humidity test chamber for precise temperature and humidity control. This significantly improves the accuracy and efficiency of environmental simulation. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of one embodiment of the present utility model;

[0025] Figure 2 This is a schematic diagram of the liquid supply seat and rotating shaft seat according to an embodiment of the present invention;

[0026] Figure 3 This is a schematic diagram of the rotating shaft seat structure according to an embodiment of the present invention;

[0027] Figure 4 This is a schematic diagram of the cross-sectional structure of a plunger assembly according to an embodiment of the present invention.

[0028] Figure label:

[0029] 100. Liquid supply seat; 101. Liquid inlet valve; 102. Liquid outlet valve;

[0030] 200. Drive base; 210. Motor; 220. Shaft base; 211. Output shaft; 221. Inclined surface; 222. Bearing ring;

[0031] 300. Plunger assembly; 310. Cylinder liner; 320. Plunger rod; 311. Piston chamber; 312. Heating wire; 321. Sliding head; 322. Return spring. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features of the present utility model can be combined with each other.

[0033] It should be understood that these descriptions are merely exemplary and are not intended to limit the scope of this invention.

[0034] The following describes, with reference to the accompanying drawings, some embodiments of the present invention, providing a water supply mechanism for a humidity and heat system in a high and low temperature alternating humidity and heat test chamber.

[0035] Combination Figures 1-4 As shown, the present invention provides a water supply mechanism for a humidity system in a high and low temperature alternating humidity test chamber, comprising: a liquid supply seat 100, a drive seat 200, and a plunger assembly 300. The liquid supply seat 100 is fixedly installed on the top of the drive seat 200. An inlet valve 101 and an outlet valve 102 are respectively provided on both sides of the liquid supply seat 100. The inlet valve 101 is used to introduce liquid into the plunger assembly 300, and the outlet valve 102 is used to discharge liquid to a subsequent humidification module. A motor 210 is fixedly installed on the bottom surface of the drive seat 200 to provide power. An output shaft 211 is fixedly connected to the output end of the motor 210. The output shaft 211 meshes with a gear ring on a rotating shaft seat 220, driving the rotating shaft seat 220 to rotate around its central axis. The rotating shaft seat 220 is rotatably installed inside the drive seat 200. The top surface of the pivot seat 220 is an inclined slope, and a bearing ring 222 is fixedly installed thereon. Preferably, it is a planar bearing structure with an inclined bottom surface, which is used to cooperate with the plunger assembly to realize the lifting and lowering action of the rod 320.

[0036] Specifically, the bearing ring 222 has a planar bearing structure and its bottom surface is inclined.

[0037] The plunger assembly 300 includes a cylinder sleeve 310 and a rod 320. A piston chamber 311 is formed inside the cylinder sleeve 310, and one end of the rod 320 is slidably fitted into the piston chamber 311 for the intake and discharge of water. A heating wire 312, preferably an annular resistance wire heater, is embedded in the inner wall of the cylinder sleeve 310 and wound around the outer surface of the piston chamber 311 to heat the water entering the piston chamber 311, thereby improving water supply efficiency and ensuring the response speed and temperature uniformity of the humid and hot environment within the test chamber.

[0038] In this embodiment, a sliding head 321 is fixedly provided at the bottom end of the column rod 320, and the sliding head 321 slides in contact with the bearing ring 222 provided on the top surface of the rotating shaft seat 220. A return spring 322 is movably sleeved on the outside of the column rod 320, one end of the return spring 322 abuts against the bottom surface of the cylinder sleeve 310, and the other end abuts against the top surface of the sliding head 321.

[0039] In actual use, after the motor 210 starts, it drives the output shaft 211 to rotate. The output shaft 211 meshes with the gear ring on the rotating shaft seat 220, thereby driving the rotating shaft seat 220 to rotate. Since the top surface of the rotating shaft seat 220 is a sloping structure, the sliding head 321 at the bottom of the rod 320 slides relative to its contact surface. Combined with the elastic force of the return spring 322, the rod 320 moves up and down reciprocally in the axial direction, forming an action similar to a plunger pump, thereby realizing the intake and discharge of water in the piston chamber 311.

[0040] The inlet valve 101 and outlet valve 102 are one-way valves. When the rod 320 moves upward, the inlet valve 101 opens, drawing external water into the piston chamber 311. When the rod 320 moves downward, the inlet valve 101 closes and the outlet valve 102 opens, completing the discharge of the water. Since a heating wire 312 is installed inside the piston chamber 311, the water can be heated synchronously during the above process, ensuring that the discharged water temperature reaches the set value, thus meeting the precise control requirements of the experimental equipment for damp heat parameters.

[0041] The structure is compact and reliable in operation, and can adapt to the changing high and low temperature environment inside the test chamber. It can also achieve efficient, accurate and stable water supply without the need for complex electromagnetic control valves.

[0042] Working principle and usage process of this utility model:

[0043] This invention achieves efficient water supply to the humidity and heat system in the test chamber through a rationally designed liquid supply drive structure. Its core working principle is as follows:

[0044] Liquid supply drive: A motor 210 is installed at the bottom of the drive base 200. The output shaft 211 of the motor 210 meshes with the gear ring on the rotating shaft base 220, driving the rotating shaft base 220 to rotate around its own axis. The rotating shaft base 220 has an inclined top surface and is equipped with a bearing ring 222.

[0045] Function of the plunger pump: The plunger 320 in the plunger assembly 300 has a sliding head 321 at its bottom end, which slides in conjunction with the bearing ring 222. When the shaft seat 220 rotates, a return spring 322 is sleeved on the plunger 320, with its two ends abutting against the bottom surface of the cylinder liner 310 and the top of the sliding head 321, respectively. The spring is compressed during the downward movement of the plunger and released during the upward movement, which helps the plunger to return to its stable position and drives the plunger 320 to slide up and down, thereby realizing the intake and discharge of liquid inside the piston chamber 311.

[0046] Liquid path control: The liquid supply seat 100 is equipped with an inlet valve 101 and an outlet valve 102, both of which are one-way valves to ensure that the liquid enters the piston chamber 311 from the inlet valve 101 and is discharged through the outlet valve 102, thus realizing one-way liquid supply.

[0047] Liquid preheating: A heating wire 312 is embedded in the inner wall of the piston chamber 311. It is a ring-shaped resistance wire structure. During the operation of the plunger assembly, the water entering the piston chamber can be heated at the same time to increase the water supply temperature and effectively cooperate with the humidity and heat system to accurately control the ambient temperature and humidity.

[0048] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0049] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A water supply mechanism for a humidity and heat system in a high and low temperature alternating humidity and heat test chamber, characterized in that, include: The liquid supply seat (100), drive seat (200), and plunger assembly (300) are provided. The liquid supply seat (100) is fixedly installed on the top of the drive seat (200). The liquid supply seat (100) is provided with an inlet valve (101) and an outlet valve (102) on both sides. A rotating shaft seat (220) is rotatably installed on the inner side of the drive seat (200). A motor (210) for driving the rotating shaft seat (220) to rotate is fixedly installed on the bottom surface of the drive seat (200). The plunger assembly (300) includes a cylinder sleeve (310) and a rod (320). A piston chamber (311) is opened on the inner side of the cylinder sleeve (310). A heating wire (312) is embedded in the inner side of the cylinder sleeve (310). One end of the rod (320) is slidably sleeved on the inner side of the piston chamber (311).

2. The water supply mechanism according to claim 1, characterized in that, The output end of the motor (210) is fixedly connected to the output shaft (211), and the surface of the rotating shaft seat (220) is provided with a toothed ring for meshing and transmission with the output shaft (211).

3. The water supply mechanism according to claim 1, characterized in that, The top surface of the rotating shaft seat (220) is inclined, and a bearing ring (222) is fixedly installed on the top surface of the rotating shaft seat (220). The bottom end of the column rod (320) is provided with a sliding head (321) that slides against the top surface of the bearing ring (222). A return spring (322) is movably sleeved on the surface of the column rod (320). The upper and lower ends of the return spring (322) abut against the bottom surface of the cylinder sleeve (310) and the top surface of the sliding head (321), respectively.

4. The water supply mechanism according to claim 1, characterized in that, The inlet valve (101) and outlet valve (102) are both one-way valve tube structures, used for unidirectional input of water into the piston chamber (311) and output into the piston chamber (311) respectively.

5. The water supply mechanism according to claim 3, characterized in that, The bearing ring (222) is a planar bearing structure, and its bottom surface is inclined.

6. The water supply mechanism according to claim 1, characterized in that, The heating wire (312) is a ring-shaped resistance wire heater, which is wound around the outer wall surface of the piston cavity (311) to heat the water entering the piston cavity (311) to improve the humidification efficiency.

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