Novel brass body material and practical combined small electromagnetic valve matched with whole machine power

Abstract

The invention relates to the technical field of electromagnetic valves, in particular to a novel brass body material and practical combined small electromagnetic valve matched with complete machine power, which comprises a brass valve body, a stainless steel sleeve is mounted at the top of the brass valve body, and a magnetic core is slidably connected to the inner side wall of the stainless steel sleeve. A cylindrical spring is installed in the magnetic core, a plug is installed at the top of the stainless steel sleeve, the top of the cylindrical spring is fixedly connected with the plug, a shell is installed on the outer side wall of the stainless steel sleeve, and an electromagnetic coil is wound around the portion, located in the shell, of the outer side wall of the stainless steel sleeve. The drift diameter of the valve port of the brass body is designed to be 1.9-2.0 mm, the brass body is matched with the steel ball of 4-6 mm and the special brass material to form hard sealing, passing of a small-flow refrigerant is accurately controlled, and the valve is perfectly suitable for refrigerating systems such as an ice preparation machine and an ice cream machine which are low in overall power and need micro-flow control; the problem that refrigerating capacity control is not accurate due to the fact that the flow of an existing electromagnetic valve is too large is solved.

Description

Technical Field

[0001] The invention relates to the technical field of electromagnetic valves, in particular to a small electromagnetic valve which is made of a novel brass body material and is practical and compatible with the power of the entire machine. Background Art

[0002] Existing solenoid valves for refrigeration are often designed based on the industry standard "Refrigeration Solenoid Valve JB / T4119-2013," without considering the adaptability to the power and functional complexity of the entire machine. These solenoid valves suffer from excessive flow, making them unable to accurately control the cooling capacity of low-power machines such as ice makers and ice cream machines. They also struggle to meet the precise control requirements of refrigerant flow rates in micro-flow refrigeration systems, resulting in low overall efficiency and high energy consumption. This makes them unsuitable for low-power, single-function devices such as household ice makers. Therefore, a small solenoid valve combining a novel brass body material with a practical design that matches the overall power of the machine is proposed. Summary of the Invention

[0003] In view of this, the present invention provides a small solenoid valve that combines a new brass body material and a practical type that is compatible with the power of the entire machine, so as to solve or alleviate the technical problems existing in the prior art and at least provide a beneficial choice.

[0004] The technical solution of the present invention is achieved as follows: a small solenoid valve that combines a new brass body material and a practical type that is compatible with the power of the entire machine, including a brass valve body, a stainless steel sleeve is installed on the top of the brass valve body, the inner wall of the stainless steel sleeve is slidably connected to a magnetic core, a cylindrical spring is installed inside the magnetic core, a plug is installed on the top of the stainless steel sleeve, the top of the cylindrical spring is fixedly connected to the plug, a shell is installed on the outer wall of the stainless steel sleeve, the outer wall of the stainless steel sleeve is located inside the shell and an electromagnetic coil is wound around it, a steel ball is installed at the bottom of the magnetic core, the air inlet end of the brass valve body is connected to an air inlet copper tube, and the air outlet end of the brass valve body is connected to an air outlet copper tube.

[0005] Further preferably, the inner side wall of the plug and the top of the shell are threadedly connected with a fastening bolt.

[0006] The embodiment of the present invention adopts the above technical solution, which has the following advantages:

[0007] 1. The present invention designs the valve port diameter of the brass body to 1.9-2.0mm, and forms a hard seal with a 4-6mm steel ball and special brass material to accurately control the passage of small-flow refrigerant. It is perfectly adapted to refrigeration systems such as ice makers and ice cream machines with low overall power and requiring micro-flow control, solving the problem of inaccurate cooling capacity control caused by excessive flow of existing solenoid valves.

[0008] 2. The hard sealing structure of the special brass material and stainless steel ball of the present invention ensures a stable and reliable sealing surface and long-term effective internal leakage performance; at the same time, this material combination has little wear during frequent on-off switching, so that the life of the solenoid valve can reach more than 300,000 times, thereby improving the durability of the equipment.

[0009] 3. The selection of the special brass material of the present invention enables the first-time finished product rate in the production process to reach more than 99.5%, reduces the production cost and rework rate, and facilitates large-scale production.

[0010] 4. Through structural design and material combination, the present invention achieves precise adaptation to complete machines of different powers, broadens the application scope of solenoid valves in various refrigeration equipment such as air conditioners and dehumidifiers, and improves the automatic control accuracy and operating efficiency of the refrigeration system.

[0011] The above summary is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments and features described above, further aspects, embodiments and features of the present invention will be readily apparent by reference to the accompanying drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. 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 any creative work.

[0013] Figure 1 It is a structural diagram of the present invention;

[0014] Figure 2 It is a cross-sectional structural diagram of the present invention in a power-off state;

[0015] Figure 3 This is a cross-sectional structural diagram of the present invention in the power-on state.

[0016] Figure numerals: 1. Brass valve body; 2. Stainless steel sleeve; 3. Magnetic core; 4. Cylindrical spring; 5. Plug; 6. Shell; 7. Fastening bolt; 8. Electromagnetic coil; 9. Steel ball; 10. Air inlet copper tube; 11. Air outlet copper tube. DETAILED DESCRIPTION

[0017] Hereinafter, only certain exemplary embodiments are briefly described. As will be appreciated by those skilled in the art, the described embodiments may be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and description are to be considered as illustrative in nature and not restrictive.

[0018] The embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0019] like Figure 1-3 As shown, an embodiment of the present invention provides a small solenoid valve that combines a new type of brass body material and a practical type that is compatible with the power of the entire machine, including a brass valve body 1, a stainless steel sleeve 2 is installed on the top of the brass valve body 1, and the inner wall of the stainless steel sleeve 2 is slidably connected to the magnetic core 3, a cylindrical spring 4 is installed inside the magnetic core 3, a plug 5 is installed on the top of the stainless steel sleeve 2, and the top of the cylindrical spring 4 is fixedly connected to the plug 5, a shell 6 is installed on the outer wall of the stainless steel sleeve 2, and an electromagnetic coil 8 is wound around the outer wall of the stainless steel sleeve 2 inside the shell 6, a steel ball 9 is installed at the bottom of the magnetic core 3, the air inlet end of the brass valve body 1 is connected to the air inlet copper tube 10, and the air outlet end of the brass valve body 1 is connected to the air outlet copper tube 11.

[0020] In one embodiment, the inner wall of the plug 5 and the top of the housing 6 are threadedly connected with a fastening bolt 7 .

[0021] When the electromagnetic coil 8 is not energized, the electromagnetic coil 8 does not generate a magnetic field, and the elastic force of the cylindrical spring 4 pushes the magnetic core 3 to move downward, and the steel ball 9 at the bottom of the magnetic core 3 is tightly fitted with the sealing part of the brass valve body 1 (hard seal), blocking the passage between the air inlet copper tube 10 and the air outlet copper tube 11, and the refrigerant cannot flow through the electromagnetic valve. At this time, the electromagnetic valve does not participate in the refrigeration cycle. After the electromagnetic coil 8 is energized, the electromagnetic coil 8 generates a magnetic field, and the magnetic field force overcomes the elastic force of the cylindrical spring 4 to attract the magnetic core 3 to move upward, the magnetic core 3 is attracted to the plane of the plug 5, and the steel ball 9 is separated from the sealing part of the brass valve body 1. The high-pressure refrigerant in the air inlet copper tube 10 flows through the internal channel of the brass valve body 1 to the air outlet copper tube 11 and enters the refrigeration cycle, realizing the passage control of the refrigeration system. When the electromagnetic coil 8 is de-energized again, the magnetic field force disappears, the elastic force of the cylindrical spring 4 pushes the magnetic core 3 to reset, the steel ball 9 is re-sealed with the brass valve body 1, the electromagnetic valve returns to the closed state, exits the refrigeration cycle, and completes an on-off control process.

[0022] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various modifications and substitutions within the technical scope disclosed in the present invention, and such modifications and substitutions are intended to be within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be subject to the scope of protection of the claims.

Claims

1. A small solenoid valve with a new brass body material and a practical design that matches the overall power, characterized by: The invention comprises a brass valve body (1), a stainless steel sleeve (2) is installed on the top of the brass valve body (1), a magnetic core (3) is slidably connected to the inner wall of the stainless steel sleeve (2), a cylindrical spring (4) is installed inside the magnetic core (3), a plug (5) is installed on the top of the stainless steel sleeve (2), the top of the cylindrical spring (4) is fixedly connected to the plug (5), a shell (6) is installed on the outer wall of the stainless steel sleeve (2), an electromagnetic coil (8) is wound around the outer wall of the stainless steel sleeve (2) located inside the shell (6), a steel ball (9) is installed on the bottom of the magnetic core (3), the air inlet end of the brass valve body (1) is connected to an air inlet copper tube (10), and the air outlet end of the brass valve body (1) is connected to an air outlet copper tube (11).

2. According to claim 1, a small solenoid valve with a novel brass body material and a practical type adapted to the power of the whole machine is characterized by: The inner side wall of the plug (5) and the top of the shell (6) are threadedly connected with a fastening bolt (7).

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