A new stainless steel micro electromagnetic valve for refrigeration complete machine

Abstract

The utility model relates to solenoid valve technical field, concretely is a kind of refrigeration complete machine brand-new stainless steel micro solenoid valve of reducing cost, including stainless steel sleeve, the inside sliding connection of stainless steel sleeve has magnetic core, the inside of stainless steel sleeve is located above the sliding connection of the magnetic core and has plug, the inside of plug is equipped with cylindrical spring, the outside of stainless steel sleeve is equipped with shell, the outside of stainless steel sleeve is wound with electromagnetic coil, the inside wall of stainless steel sleeve is located below the fixed connection of the magnetic core and has valve seat, steel ball is equipped between the valve seat and the magnetic core, the outside wall of stainless steel sleeve is communicated and admits gas red copper pipe, the utility model uses stainless steel sleeve integral replacement traditional brass body, reduce the use of high price brass material, simplify manufacturing procedure (such as reduce welding link) simultaneously, reduce material cost and production process difficulty, greatly improve the price advantage of product in market competition.

Description

Technical Field

[0001] This utility model relates to the field of electromagnetic valve technology, specifically to a new stainless steel miniature electromagnetic valve for refrigeration systems that reduces costs. Background Technology

[0002] While existing solenoid valves for refrigeration (such as products designed according to "Solenoid Valves for Refrigeration JB / T4119-2013") can meet the basic control requirements of refrigeration systems, they have significant limitations:

[0003] Traditional solenoid valves mostly use brass as the body material, which has a high material cost. In addition, the manufacturing process requires many complex welding processes, which further increases the overall manufacturing cost.

[0004] Due to limitations in material properties and structural design, existing products typically have a lifespan of only around 300,000 cycles during frequent power-on and power-off switching processes. This makes it difficult to meet the dual demands of "high quality and low cost" for refrigeration units in the new era of market competition, and fails to satisfy the core requirements of refrigeration unit manufacturers to enhance product competitiveness. Therefore, a new stainless steel miniature solenoid valve for refrigeration units with reduced costs is proposed. Utility Model Content

[0005] In view of this, the present invention provides a new stainless steel miniature solenoid valve for refrigeration units with reduced costs, in order to solve or alleviate the technical problems existing in the prior art, and at least provide a beneficial alternative.

[0006] The technical solution of this utility model is implemented as follows: A new stainless steel miniature solenoid valve for a cost-reducing refrigeration unit includes a stainless steel sleeve, a magnetic core slidably connected inside the stainless steel sleeve, a plug slidably connected inside the stainless steel sleeve above the magnetic core, a cylindrical spring sleeved inside the plug, a housing installed outside the stainless steel sleeve, an electromagnetic coil wound around the outside of the stainless steel sleeve, a valve seat fixedly connected to the inner side wall of the stainless steel sleeve below the magnetic core, a steel ball between the valve seat and the magnetic core, an inlet copper pipe connected to the outer side wall of the stainless steel sleeve, and an outlet copper pipe connected to the bottom of the valve seat.

[0007] More preferably, the top of the housing and the internal thread of the plug are connected with coil screws.

[0008] More preferably, a filter screen is installed inside the intake copper pipe.

[0009] More preferably, the valve seat is made of stainless steel or brass, and the stainless steel sleeve is Ф8-Ф10, the steel ball is Ф4-Ф6, and the valve seat is Ф7-Ф9.

[0010] The present invention has the following advantages due to the adoption of the above technical solution:

[0011] I. This utility model uses an integrated stainless steel sleeve to replace the traditional brass body, which reduces the use of expensive brass materials, simplifies the manufacturing process (such as reducing welding steps), reduces material costs and production process difficulty, and greatly enhances the product's price advantage in market competition.

[0012] Second, through the improvement of the new overall stainless steel design and hard sealing method, and after multiple research and development tests, the product's lifespan has been increased from 300,000 cycles in the existing technology to more than 600,000 cycles during the frequent power-on and power-off switching process, effectively improving the reliability and service life of the refrigeration unit.

[0013] Third, this utility model achieves low cost while ensuring high quality (long life and stable sealing), perfectly meeting the demand of the refrigeration equipment industry for "high quality and low price" core components in the fierce market competition, and has strong practical value and market application prospects.

[0014] The above overview 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 become readily apparent from the accompanying drawings and the following detailed description. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a structural diagram of the present invention;

[0017] Figure 2 This is a cross-sectional view of the present invention in the power-off state;

[0018] Figure 3 This is a cross-sectional view of the present invention in the energized state.

[0019] Reference numerals: 1. Stainless steel sleeve; 2. Magnetic core; 3. Plug; 4. Cylindrical spring; 5. Housing; 6. Coil screw; 7. Electromagnetic coil; 8. Valve seat; 9. Inlet copper pipe; 10. Filter screen; 11. Steel ball; 12. Outlet copper pipe. Detailed Implementation

[0020] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this invention. Therefore, the drawings and description are considered exemplary in nature and not restrictive.

[0021] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0022] like Figure 1-3 As shown, this utility model embodiment provides a new stainless steel miniature solenoid valve for a cost-reducing refrigeration unit, including a stainless steel sleeve 1, a magnetic core 2 slidably connected inside the stainless steel sleeve 1, a plug 3 slidably connected inside the stainless steel sleeve 1 above the magnetic core 2, a cylindrical spring 4 sleeved inside the plug 3, a housing 5 installed outside the stainless steel sleeve 1, an electromagnetic coil 7 wound around the outside of the stainless steel sleeve 1, a valve seat 8 fixedly connected to the inner wall of the stainless steel sleeve 1 below the magnetic core 2, a steel ball 11 between the valve seat 8 and the magnetic core 2, an inlet copper pipe 9 connected to the outer wall of the stainless steel sleeve 1, and an outlet copper pipe 12 connected to the bottom of the valve seat 8.

[0023] In one embodiment, the top of the housing 5 and the internal thread of the plug 3 are connected by a coil screw 6.

[0024] In one embodiment, a filter screen 10 is installed inside the intake copper pipe 9.

[0025] In one embodiment, the valve seat 8 is made of stainless steel or brass, and the stainless steel sleeve 1Ф8-Ф10, the steel ball 11Ф4-Ф6, and the valve seat 8Ф7-Ф9 are all made of stainless steel.

[0026] When this utility model is in operation: when the electromagnetic coil 7 is not energized, the cylindrical spring 4 is in a naturally extended state, and its elastic force pushes the magnetic core 2 to move downward, so that the steel ball 11 at the bottom of the magnetic core 2 is tightly attached to the valve seat 8, forming a hard seal, blocking the connection between the inlet copper pipe 9 and the outlet copper pipe 12, and the refrigerant cannot enter the refrigeration cycle through the electromagnetic valve.

[0027] Start-up state (powered on): When the electromagnetic coil 7 is powered on, the coil generates a magnetic field. The magnetic force overcomes the elastic force of the cylindrical spring 4, attracting the magnetic core 2 upward until the magnetic core 2 is in close contact with the plane of the plug 3 without any gap. At this time, the steel ball 11 is released from the valve seat 8 along with the magnetic core 2, the sealing state is released, and the high-pressure refrigerant in the inlet copper pipe 9 flows through the internal channel of the stainless steel sleeve 1 to the outlet copper pipe 12, entering the refrigeration cycle, realizing the on / off or flow direction control of the refrigeration system;

[0028] Reset state (power off): After the electromagnetic coil 7 is de-energized, the magnetic field disappears, and the elastic force of the cylindrical spring 4 pushes the magnetic core 2 downward again. The steel ball 11 re-fits with the valve seat 8 to form a seal, blocking the flow of refrigerant. The solenoid valve returns to the initial closed state and exits the refrigeration cycle.

[0029] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in this utility model, and these should all be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A novel stainless steel miniature solenoid valve for cost-reducing refrigeration units, characterized in that: The system includes a stainless steel sleeve (1), a magnetic core (2) which is slidably connected inside the stainless steel sleeve (1), a plug (3) which is slidably connected inside the stainless steel sleeve (1) above the magnetic core (2), a cylindrical spring (4) which is sleeved inside the plug (3), a housing (5) which is installed outside the stainless steel sleeve (1), an electromagnetic coil (7) which is wound around the outside of the stainless steel sleeve (1), a valve seat (8) which is fixedly connected to the inner side wall of the stainless steel sleeve (1) below the magnetic core (2), a steel ball (11) which is provided between the valve seat (8) and the magnetic core (2), an air inlet copper pipe (9) which is connected to the outer side wall of the stainless steel sleeve (1), and an air outlet copper pipe (12) which is connected to the bottom of the valve seat (8).

2. The new stainless steel miniature solenoid valve for cost-reducing refrigeration units according to claim 1, characterized in that: The top of the housing (5) and the inside of the plug (3) are threaded with coil screws (6).

3. The new stainless steel miniature solenoid valve for cost reduction in refrigeration units according to claim 1, characterized in that: The air intake copper pipe (9) is equipped with a filter screen (10).

4. The new stainless steel miniature solenoid valve for cost reduction in refrigeration units according to claim 1, characterized in that: The valve seat (8) is made of stainless steel or brass, with stainless steel sleeve (1) Ф8-Ф10, steel ball (11) Ф4-Ф6 and valve seat (8) Ф7-Ф9.

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