Heating valve structure

Abstract

The present invention discloses a warm water valve structure, comprising a valve body, a shaft, a copper cone and an electromagnetic assembly, wherein the copper cone is fixed on one end of the shaft, the electromagnetic assembly comprises an electromagnetic housing, a coil assembly and a sensor, the electromagnetic housing is in a hollow cylindrical shape, the coil assembly is coaxially fixed in the electromagnetic housing, a driving channel for the shaft to pass through is formed in the middle of the coil assembly, and the sensor is fixedly mounted on the inner side wall of the upper end of the electromagnetic housing. The warm water valve structure of the present invention can effectively detect the reset condition of the shaft through the arrangement of the sensor, and then judge whether there is a problem with the reset spring.

Description

Technical Field

[0001] The invention relates to a warm water valve, and more particularly to a warm water valve structure. Background Art

[0002] Car air conditioning is an essential equipment in today's cars, and the warm water valve in the car air conditioning is an indispensable part of the car air conditioning system. There are various types of warm air solenoid valves on the market with different effects. Most of them have complex structures and high costs. Due to the installation position restrictions in the car, the warm water valve is required to be as small as possible. However, the smaller the size, the greater the manufacturing difficulty. It is easy to have poor starting and control performance, water leakage, small water output and other characteristics, which seriously affect the normal use of the car air conditioner.

[0003] Therefore, in the prior art, there is an invention patent with patent number 201120139828.7, named as an electromagnetic warm water valve, which discloses an electromagnetic warm water valve structure composed of a valve body, a copper cone and a coil assembly, and realizes the switching effect through the copper cone and a seal. During the switching process, the switching is mainly achieved by the coil assembly generating a magnetic force to push the copper cone to move, and the copper cone needs to be coaxially fixed with a shaft rod, and the shaft rod penetrates the valve body and enters the coil assembly, so that the coil assembly can better push the shaft rod and the copper cone to move. Since the coil assembly can generally only generate a unidirectional magnetic force, the prior art mainly resets it through a reset spring, and due to long-term use and air contact, the reset spring is prone to rust and aging, which makes it easy for the reset to fail. Summary of the invention

[0004] In view of the deficiencies in the prior art, an object of the present invention is to provide a warm water valve structure that can be replaced in time when the spring fails to return to its original position.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a warm water valve structure, comprising a valve body, a shaft, a copper cone and an electromagnetic assembly, the copper cone is fixed on one end of the shaft, the shaft can be slidably arranged on the valve body, a valve seat is arranged in the valve body, the valve seat cooperates with the copper cone, the end of the shaft facing away from the copper cone extends into the electromagnetic assembly, the valve body is provided with a liquid inlet pipe and a liquid outlet pipe, the liquid inlet pipe is connected to the engine end, and the liquid outlet pipe is connected to the cab end, characterized in that: the electromagnetic assembly comprises an electromagnetic housing, a coil assembly and a sensor, the electromagnetic housing is hollow cylindrical, the coil assembly is coaxially fixed in the electromagnetic housing, a driving channel for the shaft to pass through is formed in the middle of the coil assembly, the sensor is fixedly mounted on the inner side wall of the upper end of the electromagnetic housing, when the shaft is reset, the upper end of the shaft is against the sensor, the sensor is connected to the external automobile circuit to detect the reset of the shaft, and send an alarm signal to the external automobile circuit when the reset is not good.

[0006] As a further improvement of the present invention, the sensor includes an upper electrode plate, a lower electrode plate and a sensor housing, the upper electrode plate and the lower electrode plate are electrically connected to the external automobile circuit, the sensor housing is fixedly mounted on the inner side wall of the upper end of the electromagnetic housing, a receiving groove is provided at the lower end of the sensor housing, the upper electrode plate is fixedly mounted on the bottom of the receiving groove, the lower electrode plate is slidably mounted in the receiving groove, and is spaced and sealed between the upper electrode plate, and the upper electrode plate and the lower electrode plate are filled with electrolyte.

[0007] As a further improvement of the present invention, the copper cone includes a closed cone, a first-gear cone and a second-gear cone, and the closed cone, the first-gear cone and the second-gear cone are all coaxially fixed on the shaft rod, and the diameters of the closed cone, the first-gear cone and the second-gear cone are from large to small, and are arranged from top to bottom on the shaft rod, wherein the diameter of the first-gear cone is smaller than the aperture in the valve seat, and the diameter of the closed cone is larger than the aperture in the valve seat, and the current of the driving coil assembly has three gears, corresponding to the situations where the closed cone, the first-gear cone and the second-gear cone are in the valve seat, respectively.

[0008] As a further improvement of the present invention, an iron core is coaxially sleeved at a position near the upper end of the shaft rod, a sliding sleeve is coaxially fixed at a position near the upper end of the electromagnetic housing, the iron core is slidably arranged in the sliding sleeve, three slots distributed from top to bottom are opened in the sliding sleeve, and the positions of the three slots correspond to the closed cone, the first-gear cone and the second-gear cone. A retractable blocking block is provided on the outer wall of the iron core, and when the blocking block is embedded in the blocking slot, the closed cone, the first-gear cone or the second-gear cone is in the valve seat.

[0009] As a further improvement of the present invention, an outer side wall of the iron core is provided with a telescopic slot, and the clamping block is a spherical structure, which is slidably arranged in the telescopic slot and fixedly connected to the bottom of the telescopic slot via a spring.

[0010] As a further improvement of the present invention, the clamping groove is an annular groove structure coaxial with the sliding sleeve.

[0011] The beneficial effect of the present invention is that through the arrangement of the valve body, the shaft rod, the copper cone and the electromagnetic component, a warm water valve structure can be effectively formed. During operation, the valve is closed by the electromagnetic component and then reset to open by the reset spring. When the reset spring drives the shaft rod to move upward to open the valve, the end of the shaft rod will abut against the sensor. In this way, the reset status of the shaft rod can be detected by the sensor, thereby determining whether the reset spring needs to be replaced. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the structure of the warm water valve of the present invention;

[0013] Figure 2 It is a schematic diagram of the internal structure of the electromagnetic component;

[0014] Figure 3 Schematic diagram of the internal structure of the sensor. DETAILED DESCRIPTION

[0015] The present invention will be further described below in detail with reference to the embodiments shown in the accompanying drawings.

[0016] Reference Figures 1 to 3 As shown, a warm water valve structure of the present embodiment comprises a valve body 1, a shaft 2, a copper cone 3 and an electromagnetic assembly 4, wherein the copper cone 3 is fixed on one end of the shaft 2, the shaft 2 is slidably arranged on the valve body 1, a valve seat is arranged in the valve body 1, the valve seat cooperates with the copper cone 3, the end of the shaft 2 facing away from the copper cone 3 extends into the electromagnetic assembly 4, the valve body 1 is provided with a liquid inlet pipe and a liquid outlet pipe, the liquid inlet pipe is connected to the engine end, and the liquid outlet pipe is connected to the cab end, and is characterized in that: the electromagnetic assembly 4 comprises an electromagnetic housing 41, a coil assembly 42 and a sensor 43, the electromagnetic housing 41 is hollow cylindrical, the coil assembly 42 is coaxially fixed in the electromagnetic housing 41, and a driving passage is formed in the middle of the coil assembly 42 for the shaft 2 to pass through The sensor 43 is fixedly mounted on the inner wall of the upper end of the electromagnetic housing 41. When the shaft rod 2 is reset, the upper end of the shaft rod 2 is against the sensor 43. The sensor 43 is connected to the external automobile circuit to detect the reset status of the shaft rod 2 and send an alarm signal to the external automobile circuit when the reset status is not good. In the process of using the warm water valve of this embodiment, it only needs to be installed on the automobile pipeline. During use, the reset status of the shaft rod 2 can be detected by the sensor 43, and when the shaft rod 2 is not reset well, an alarm signal is sent to the external automobile circuit in time to remind the owner to replace and repair the warm water valve in time. This ensures the working stability of the warm water valve and avoids a series of problems caused by poor function of the reset spring.

[0017] As an improved specific implementation, the sensor 43 includes an upper electrode plate 431, a lower electrode plate 432 and a sensor housing 433, the upper electrode plate 431 and the lower electrode plate 432 are both electrically connected to the external automobile circuit, the sensor housing 433 is fixedly mounted on the inner side wall of the upper end of the electromagnetic housing 41, and a receiving groove is provided at the lower end of the sensor housing 433, the upper electrode plate 431 is fixedly mounted on the bottom of the receiving groove, the lower electrode plate 432 is slidably mounted in the receiving groove, and is spaced and sealed between the upper electrode plate 431, and the electrolyte is filled between the upper electrode plate 431 and the lower electrode plate 432, through the upper With the arrangement of the above structure, the reset condition of the shaft rod 2 can be detected by changing the distance between the upper electrode plate 431 and the lower electrode plate 432, thereby changing the output capacitance of the overall sensor 43. That is, when the shaft rod 2 is reset better, the distance between the upper electrode plate 431 and the lower electrode plate 432 is within a constant range, and the capacitance of the sensor output capacitance is within a constant range. When the shaft rod 2 is not reset well, the distance between the upper electrode plate 431 and the lower electrode plate 432 becomes larger, and the capacitance of the output capacitance of the sensor 43 exceeds the constant range, thereby achieving the effect of detecting whether the shaft rod 2 is not reset well.

[0018] As a specific implementation of the improvement, the copper cone 3 includes a closed cone 31, a first-gear cone 32 and a second-gear cone 33, and the closed cone 31, the first-gear cone 32 and the second-gear cone 33 are all coaxially fixed on the shaft 2, and the diameters of the closed cone 31, the first-gear cone 32 and the second-gear cone 33 are from large to small, and are arranged from top to bottom on the shaft 2, wherein the diameter of the first-gear cone 32 is smaller than the aperture in the valve seat, and the diameter of the closed cone 31 is larger than the aperture in the valve seat. The current of the driving coil assembly 42 has three gears, corresponding to the situations where the closed cone 31, the first-gear cone 32 and the second-gear cone 33 are in the valve seat, respectively. Through the setting of the above structure, the effect of the warm water valve having three-gear flow rates can be effectively achieved, and no additional channel is required, thereby avoiding the problem of increased volume of the valve body 1.

[0019] As an improved specific implementation method, the shaft rod 2 is coaxially sleeved with an iron core 21 near the upper end, and a sliding sleeve 44 is coaxially fixed near the upper end in the electromagnetic shell 41. The iron core 21 is slidably arranged in the sliding sleeve 44. Three slots 441 distributed from top to bottom are opened in the sliding sleeve 44. The positions of the three slots 441 correspond to the closed cone 31, the first-gear cone 32 and the second-gear cone 33. A retractable block 211 is provided on the outer wall of the iron core 21. When the block 211 is embedded in the slot 441, the closed cone 31, the first-gear cone 32 or the second-gear cone 33 is in the valve seat. Through the arrangement of the above-mentioned structure, the shaft rod 2 can be positioned after the gear adjustment is completed, thereby reducing the unstable flow of the warm water valve caused by liquid impact.

[0020] As an improved specific implementation, the outer wall of the iron core 21 is provided with a telescopic groove 212, and the clamping block 211 is a spherical structure, which can be slidably arranged in the telescopic groove 212 and fixedly connected to the bottom of the telescopic groove 212 through a spring. The above-mentioned structure can effectively achieve the effect of clamping the shaft rod 2.

[0021] As an improved specific implementation, the slot 441 is an annular groove structure coaxial with the sleeve 44. The slot 441 with an annular groove structure does not need to limit the rotation angle of the shaft rod 2 when it is lifted or lowered, and can also ensure that the block 211 can be accurately and effectively embedded in the slot 441, thereby achieving the effect of locking the shaft rod 2.

[0022] In summary, the warm water valve structure of this embodiment can effectively detect whether the shaft rod 2 is well reset through the setting of the sensor 43, and when the reset is not good, it can effectively send an alarm signal to the external automobile circuit, thereby reminding people to replace the warm water valve.

[0023] The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A warm water valve structure, comprising a valve body (1), a shaft (2), a copper cone (3) and an electromagnetic assembly (4), wherein the copper cone (3) is fixed to one end of the shaft (2), the shaft (2) is slidably arranged on the valve body (1), a valve seat is arranged in the valve body (1), the valve seat cooperates with the copper cone (3), one end of the shaft (2) facing away from the copper cone (3) extends into the electromagnetic assembly (4), the valve body (1) is provided with a liquid inlet pipe and a liquid outlet pipe, the liquid inlet pipe is connected to the engine end, and the liquid outlet pipe is connected to the cab end, characterized in that: The electromagnetic assembly (4) comprises an electromagnetic housing (41), a coil assembly (42) and a sensor (43); the electromagnetic housing (41) is in the shape of a hollow cylinder; the coil assembly (42) is coaxially fixed in the electromagnetic housing (41); a driving channel for the shaft (2) to pass through is formed in the middle of the coil assembly (42); the sensor (43) is fixedly mounted on the inner side wall of the upper end of the electromagnetic housing (41); when the shaft (2) is reset, the upper end of the shaft (2) abuts against the sensor (43); the sensor (43) is connected to an external automobile circuit to detect the reset status of the shaft (2); and when the reset status is not good, an alarm signal is sent to the external automobile circuit. The sensor (43) comprises an upper electrode plate (431), a lower electrode plate (432) and a sensor housing (433); the upper electrode plate (431) and the lower electrode plate (432) are both electrically connected to an external automobile circuit; the sensor housing (433) is fixedly mounted on the inner side wall of the upper end of the electromagnetic housing (41); a receiving groove is provided at the lower end of the sensor housing (433); the upper electrode plate (431) is fixedly mounted on the bottom of the receiving groove; the lower electrode plate (432) is slidably mounted in the receiving groove and is spaced and sealed from the upper electrode plate (431); and an electrolyte is filled between the upper electrode plate (431) and the lower electrode plate (432).

2. The warm water valve structure according to claim 1, characterized in that: The copper cone (3) comprises a closed cone (31), a first-gear cone (32) and a second-gear cone (33); the closed cone (31), the first-gear cone (32) and the second-gear cone (33) are all coaxially fixed on the shaft (2); the diameters of the closed cone (31), the first-gear cone (32) and the second-gear cone (33) are arranged from top to bottom on the shaft (2); the diameter of the first-gear cone (32) is smaller than the aperture in the valve seat, and the diameter of the closed cone (31) is larger than the aperture in the valve seat; the current of the driving coil assembly (42) has three gears, corresponding to the situations where the closed cone (31), the first-gear cone (32) and the second-gear cone (33) are in the valve seat, respectively.

3. The warm water valve structure according to claim 2, characterized in that: An iron core (21) is coaxially sleeved at a position near the upper end of the shaft rod (2); a sliding sleeve (44) is coaxially fixed at a position near the upper end of the electromagnetic housing (41); the iron core (21) is slidably arranged in the sliding sleeve (44); three clamping grooves (441) are arranged in the sliding sleeve (44) from top to bottom; the positions of the three clamping grooves (441) correspond to the closed cone (31), the first-gear cone (32) and the second-gear cone (33); a retractable clamping block (211) is provided on the outer wall of the iron core (21); when the clamping block (211) is embedded in the clamping groove (441), the closed cone (31), the first-gear cone (32) or the second-gear cone (33) is located in the valve seat.

4. The warm water valve structure according to claim 3, characterized in that: The outer side wall of the iron core (21) is provided with a telescopic groove (212); the clamping block (211) is a spherical structure, slidably disposed in the telescopic groove (212), and fixedly connected to the bottom of the telescopic groove (212) via a spring.

5. The warm water valve structure according to claim 4, characterized in that: The clamping groove (441) is an annular groove structure coaxial with the sliding sleeve (44).

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