CN112071697B

CN112071697B - Magnetic sensitive temperature switch

Info

Publication number: CN112071697B
Application number: CN202010896880.0A
Authority: CN
Inventors: 陈智华
Original assignee: Chuandong Magnetic Electronic Co Ltd
Current assignee: Chuandong Magnetic Electronic Co Ltd
Priority date: 2020-08-31
Filing date: 2020-08-31
Publication date: 2023-01-13
Anticipated expiration: 2040-08-31
Also published as: CN112071697A

Abstract

The invention provides a magnetic-sensing temperature switch, which comprises a sleeve, a magnetic ring assembly and a vibration damping sleeve, wherein the magnetic ring assembly and the vibration damping sleeve are sequentially sleeved on the sleeve from top to bottom; the damping sleeve is provided with a damping hole, the damping hole comprises a first damping hole, the first damping hole extends axially along the damping sleeve and is collinear with the axis of the damping sleeve, and the mounting section penetrates through the first damping hole. Compared with the prior art, the magnetic ring assembly is fixed by the damping sleeve, so that mutual extrusion force among the magnetic rings is reduced, the damage of the magnetic rings is well reduced, the reject ratio of products is greatly reduced, the influence of vibration generated during the operation of equipment on the magnetic ring assembly can be effectively reduced, the service life of the magnetic-sensitive temperature switch is effectively prolonged, and the magnetic-sensitive temperature switch has good practicability.

Description

Magnetic sensitive temperature switch

Technical Field

The invention relates to the field of temperature sensing control switches, in particular to a magnetic sensing temperature switch.

Background

The magnetic-sensing temperature switch is a temperature-sensitive control device and comprises a magnetic ring component, wherein the magnetic ring component consists of three magnetic rings, the magnetic ring component assembly mode of the existing magnetic-sensing temperature switch is formed by riveting in a common mode, pressure is easily and directly impacted on the magnetic ring component in the mode, the three magnetic rings are stressed and extruded, the magnetic rings are damaged and the like, the product loses the temperature characteristic seriously, and the product loses the temperature control function.

Disclosure of Invention

Based on this, in order to solve the problem that the magnetic ring assembly is very easy to be extruded, the invention provides a magnetic-sensing temperature switch, so as to reduce the damage reject ratio of the magnetic ring of the product and reduce the failure risk of the product, and the specific technical scheme is as follows:

a magnetic-sensing temperature switch comprises a sleeve, a magnetic ring assembly and a vibration damping sleeve, wherein the magnetic ring assembly and the vibration damping sleeve are sequentially sleeved on the sleeve from top to bottom; the damping sleeve is provided with a damping hole, the damping hole comprises a first damping hole, the first damping hole extends axially along the damping sleeve and is collinear with the axis of the damping sleeve, and the mounting section penetrates through the first damping hole.

Compared with the prior art, the magnetic ring assembly is fixed by the damping sleeve, so that mutual extrusion force among the magnetic rings is reduced, the damage of the magnetic rings is well reduced, the reject ratio of products is greatly reduced, the influence of vibration generated during the operation of equipment on the magnetic ring assembly can be effectively reduced, the service life of the magnetic-sensitive temperature switch is effectively prolonged, and the magnetic-sensitive temperature switch has good practicability.

Further, the magnetic-sensing temperature switch also comprises a vibration reduction piece, and a containing groove for containing the vibration reduction piece is arranged on the vibration reduction sleeve.

Further, the accommodating groove is a spiral groove which surrounds the vibration reduction sleeve and extends from one end of the vibration reduction sleeve to the other end of the vibration reduction sleeve.

Further, the damping member is a helical stranded spring.

Further, the damping hole further includes a second damping hole intersecting the first damping hole.

Further, still be provided with the spiral dashpot on the damping sleeve, the spiral dashpot winds the damping sleeve, and certainly one end of damping sleeve extends to the other end.

Further, the first damping hole is in threaded connection with the mounting section.

Furthermore, a vibration damping ring is further sleeved on the sleeve and arranged between the magnetic ring assembly and the vibration damping sleeve.

Furthermore, a buffer washer is further sleeved on the sleeve, and the buffer washer is arranged between the magnetic ring assembly and the limiting section.

Further, the damping sleeve is a silica gel piece or a rubber piece.

Drawings

The invention will be further understood from the following description in conjunction with the accompanying drawings. The components in the figures are not necessarily to scale, emphasis instead being placed upon illustrating the principles of the embodiments. Like reference numerals designate corresponding parts throughout the different views.

FIG. 1 is a schematic diagram of a magnetic temperature-sensitive switch according to one embodiment of the present invention;

FIG. 2 is a schematic diagram of a portion of a magnetically sensitive temperature switch according to one embodiment of the present invention;

FIG. 3 is a second schematic diagram of a portion of a magnetic temperature-sensitive switch according to one embodiment of the present invention;

FIG. 4 is a third schematic diagram of a portion of a magnetic temperature-sensitive switch according to an embodiment of the present invention;

FIG. 5 is a schematic view of a damping sleeve of a magnetically sensitive temperature switch according to an embodiment of the present invention;

FIG. 6 is a schematic cross-sectional view of a damping sleeve of a magnetically sensitive temperature switch in accordance with an embodiment of the present invention;

fig. 7 is a partial structural schematic view of a damping member of a magnetic temperature-sensitive switch according to an embodiment of the present invention.

Description of the reference numerals:

1. a sleeve; 11. a limiting section; 12. an installation section; 2. a magnetic ring assembly; 3. a vibration damping sleeve; 31. a containing groove; 32. a second damping hole; 33. a first damping hole; 34. a spiral buffer tank; 4. a vibration damping ring; 5. a cushion washer; 6. a vibration reduction member.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to embodiments thereof. It should be understood that the detailed description and specific examples, while indicating the scope of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a single embodiment.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

The terms "first" and "second" as used herein do not denote any particular order or quantity, but rather are used to distinguish one element from another.

As shown in fig. 1 to 7, a magnetic sensitive temperature switch in an embodiment of the present invention includes a sleeve 1, a magnetic ring assembly 2 and a damping sleeve 3, which are sequentially sleeved on the sleeve 1 from top to bottom, the sleeve 1 includes a limiting section 11 and a mounting section 12, which are sequentially connected from top to bottom, the magnetic ring assembly 2 is disposed on the mounting section 12 and is abutted to the limiting section 11; the damping sleeve 3 is provided with a damping hole, the damping hole comprises a first damping hole 33, the first damping hole 33 extends along the axial direction of the damping sleeve 3 and is collinear with the axis of the damping sleeve 3, and the mounting section 12 penetrates through the first damping hole 33. The first damping hole 33 can improve the damping performance of the entire damping sleeve 3. Specifically, the sleeve 1 is in a stepped shaft shape, and the diameters of the limiting section 11 and the mounting section 12 are sequentially decreased progressively.

The magnetic ring assembly 2 comprises a temperature sensing magnetic ring and two permanent magnetic rings respectively arranged at two ends of the temperature sensing magnetic ring. When the environmental temperature rises and exceeds the Curie temperature of the temperature sensing magnetic ring, the two permanent magnetic rings magnetize the temperature sensing magnetic ring, so that the pins in the reed pipe are magnetized, and the magnetic temperature sensing switch is switched on.

Compared with the prior art, the damping sleeve 3 is arranged to fix the magnetic ring components 2, so that mutual extrusion force among the magnetic rings is reduced, the occurrence of the damage of the magnetic rings is well reduced, the reject ratio of products is greatly reduced, meanwhile, the influence of vibration generated during the operation of equipment on the magnetic ring components 2 is effectively reduced, the service life of the magnetic sensitive temperature switch is effectively prolonged, and the practicability is good.

In one embodiment, the magnetic temperature-sensitive switch further comprises a reed switch, a shell for providing installation positioning, and a lead connected with the reed switch, wherein the shell is similar to a gamma-shaped structure and comprises a shell body and a sleeve 1 which are perpendicular to each other, and the reed switch is arranged in the sleeve 1.

In the art, the housing is also referred to as a glue cartridge.

In one embodiment, the magnetic temperature-sensitive switch further comprises a damping piece 6, and the damping sleeve 3 is provided with a containing groove 31 for containing the damping piece 6. The vibration damping piece 6 is a flexible rubber strip, and a multi-phase energy absorption effect is formed by the fact that the damping force is inconsistent with the main structure of the vibration damping sleeve 3, so that the vibration damping function is effectively achieved.

In one embodiment, the receiving groove 31 is a spiral groove surrounding the damping sleeve 3 and extending from one end of the damping sleeve 3 to the other end. At this time, the vibration damping member 6 is a flexible rubber strip and can also be adapted to the spiral groove. The size of the notch of the spiral groove far away from the magnetic ring component 2 is smaller than the outer diameter of the damping piece 6, so that the damping piece 6 is prevented from falling out.

Since the magnetic-sensing temperature switch is commonly used in the refrigeration equipment, and the compressor of the refrigeration equipment can generate great vibration noise during working, under the long-term influence of the vibration noise, if the precise magnetic-sensing temperature switch cannot well reduce the vibration, the service life of the precise magnetic-sensing temperature switch can be greatly reduced, so in order to solve the problems, in one embodiment, the vibration reducing piece 6 is a spiral multi-strand spring, and has better and more multidirectional energy absorption effects, thereby playing a better buffering vibration reducing effect. The multi-strand spring is composed of a plurality of continuous spring rings and is spiral, materials used in the multi-strand spring are thinner than materials used in single-strand spiral springs with the same functions, the material strength is high, meanwhile, in the deformation process of the multi-strand spring, mutual friction energy caused by contact pressure between the spring rings of each strand can absorb energy, the multi-strand spring has a buffering effect, the rigidity of the spring rings of each strand of the multi-strand spring is smaller than that of the single-strand spiral springs with the same functions, and under the action of dynamic load, the service life of the multi-strand spring is much longer.

In one embodiment, the damping hole further comprises a second damping hole 32 intersecting the first damping hole 33. Specifically, the axis of the second damping hole 32 may be perpendicular to the axis of the first damping hole 33.

In one embodiment, the damping sleeve 3 is further provided with a spiral damping groove 34, and the spiral damping groove 34 surrounds the damping sleeve 3 and extends from one end of the damping sleeve to the other end. The spiral buffer groove 34 mainly plays a role of buffering, and may also be a spare groove for accommodating the damping member 6, and the spiral buffer groove 34 may have the same structure as the accommodating groove 31.

The receiving groove 31, the first damping hole 33, and the second damping hole 32 are disposed to simultaneously achieve a damping synergistic effect, but too many holes may affect the strength of the whole full-absorption damping device, and in order to reduce the strength influence of the holes on the whole damping sleeve 3, in the damping sleeve 3 provided in this embodiment, when the receiving groove 31 is a spiral groove, the second damping hole 32 is disposed between two adjacent spirals of the receiving groove 31. In one embodiment, the slots do not interfere with each other except that the first damping hole 33 intersects the second damping hole 32 as described.

In one embodiment, an end of the first damping hole 33 away from the magnet ring assembly 2 is provided with an internal thread, the mounting section 12 is correspondingly provided with an external thread, and the first damping hole 33 is in threaded connection with the mounting section 12. By using a screw-locking method instead of a stainless steel snap-fastening method, the extreme end of the mounting section 12 of the bushing 1 is provided with an external thread, and the damping sleeve 3 is provided with an internal thread structure, in this way, a fastening of the magnetic ring assembly 2 is performed. In order to better prevent the vibration damping sleeve 3 from loosening due to vibration, the vibration damping sleeve 3 is provided with a glue injection hole, the glue injection hole is communicated with an inner cavity of the vibration damping sleeve 3, and glue is injected into the inner cavity of the vibration damping sleeve 3 through the glue injection hole to prevent the glue from being removed so as to completely fix the vibration damping sleeve 3 and the sleeve 1.

In one preferred embodiment, in order to facilitate the repair and replacement of parts, the sleeve 1 is further sleeved with a damping ring 4 without using anti-degumming, the damping ring 4 is disposed between the magnetic ring assembly 2 and the damping sleeve 3, and the damping ring 4 is an elastic gasket, and may be a metal or non-metal elastic gasket.

In one embodiment, the sleeve 1 is further sleeved with a buffer washer 5, the buffer washer 5 is arranged between the magnetic ring assembly 2 and the limiting section 11, and the buffer washer 5 is arranged, so that the extrusion force of the limiting section 11 on the magnetic ring assembly 2 when the damping sleeve 3 abuts against the magnetic ring assembly 2 and reaches a specified assembly position can be effectively reduced, and the yield is improved.

In one embodiment, the damping sleeve 3 is a flexible member, specifically a flexible member such as a silicone member or a rubber member, which has greater elasticity to provide better vibration damping performance than a hard plastic or iron member in the background art, and the shape of the damping sleeve 3 is not limited; preferably, a certain section or the whole section of the damping sleeve 3 is hexagonal, and the design is to adapt to a wrench tool commonly used in the prior art, such as a common wrench, a pneumatic wrench, and the like, and the assembly of the damping sleeve 3 and the sleeve 1 can be facilitated by using the wrench tool, so that the efficiency is effectively improved.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A magnetic-sensing temperature switch is characterized by comprising a sleeve, a magnetic ring assembly and a vibration damping sleeve, wherein the magnetic ring assembly and the vibration damping sleeve are sequentially sleeved on the sleeve from top to bottom; the damping sleeve is provided with a damping hole, the damping hole comprises a first damping hole, the first damping hole extends along the axial direction of the damping sleeve and is collinear with the axial line of the damping sleeve, and the mounting section penetrates through the first damping hole; the magnetic-sensing temperature switch further comprises a vibration reduction piece, and a containing groove used for containing the vibration reduction piece is formed in the vibration reduction sleeve.

2. A magnetically sensitive temperature switch according to claim 1, wherein said receiving recess is a helical groove surrounding said damping sleeve and extending from one end of said damping sleeve to the other.

3. A magnetically sensitive temperature switch according to claim 2, wherein the damping member is a helical stranded spring.

4. A magnetically sensitive temperature switch according to claim 1, wherein said damping bore further comprises a second damping bore intersecting said first damping bore.

5. A magnetically sensitive temperature switch according to claim 1, wherein said damping sleeve is further provided with a helical damping groove which surrounds said damping sleeve and extends from one end of said damping sleeve to the other.

6. A magnetically sensitive temperature switch according to claim 1, wherein said first damping hole is threadably connected to said mounting section.

7. The magnetically sensitive temperature switch of claim 1, wherein a damping ring is further sleeved on the sleeve, the damping ring being disposed between the magnetic ring assembly and the damping sleeve.

8. The magnetically sensitive temperature switch of claim 1, wherein a cushion washer is further sleeved on the sleeve, the cushion washer being disposed between the magnetic ring assembly and the limiting section.

9. A magnetically sensitive temperature switch according to any of claims 1 to 8, wherein the damping sleeve is a silicone or rubber member.