CN211625821U

CN211625821U - Stirling cold insulation equipment convenient to uncap

Info

Publication number: CN211625821U
Application number: CN202020220607.1U
Authority: CN
Inventors: 程路
Original assignee: CHINA STIRLING ENGINE MANUFACTURING Ltd
Current assignee: CHINA STIRLING ENGINE MANUFACTURING Ltd
Priority date: 2020-02-27
Filing date: 2020-02-27
Publication date: 2020-10-02
Anticipated expiration: 2030-02-27

Abstract

The utility model relates to a stirling cold insulation equipment convenient to uncap, contain body and lid, the body includes stirling, thermal-insulated subassembly and thermosiphon, thermal-insulated subassembly includes cold insulation container, and the inside of this cold insulation container is formed with cold insulation space, the lid is connected on the body movably, and this lid keeps cold by upper portion airtight, the thermosiphon connects cold insulation container and the cold junction of stirling in order to conduct cold energy cold insulation container; the cover body is provided with an air check valve which allows air to circulate in one direction and is closed in the opposite direction, and the air check valve is opened when negative pressure is generated in the cold-storage space. When the cover body needs to be opened, the air check valve can be conducted firstly, so that air can enter the cold insulation space, the internal pressure of the cold insulation space is increased, the internal and external pressure difference of the cover body is reduced, and the cover body is convenient to open.

Description

Stirling cold insulation equipment convenient to uncap

Technical Field

The utility model relates to a refrigeration plant specifically, relates to a stirling cold insulation equipment convenient to uncap.

Background

The stirling refrigerator is a device capable of rapidly refrigerating, and generally comprises a casing, a heat insulation mechanism, an inner container mechanism, a cover body and the like. When the existing Stirling refrigerator is used for refrigerating, the air pressure of a material containing cavity of the inner container mechanism is low, and the cover body needs large strength to be opened, so that the cover is inconvenient to open. In view of this, the present application is specifically made.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a stirling refrigerator that conveniently uncaps is in order to solve the inconvenient problem of uncapping of current stirling refrigerator is provided.

In order to solve the technical problem, the utility model provides a stirling cold insulation equipment convenient to uncap, contain body and lid, the body includes stirling, thermal-insulated subassembly and thermosiphon, thermal-insulated subassembly includes cold insulation container, and cold insulation space is formed to this cold insulation container's inside, the lid is connected on the body movably, and this lid keeps cold space by upper portion is airtight, the thermosiphon is connected cold insulation container and the cold junction of stirling in order to conduct cold energy cold insulation container; the cover body is provided with an air check valve which allows air to circulate in one direction and is closed in the opposite direction, and the air check valve is opened when negative pressure is generated in the cold-storage space.

Preferably, one side of the cover body is movably connected to the body through a pivoting structure, and a switch mechanism is arranged between the other side of the cover body and the body.

Preferably, the heat insulation assembly further comprises a VIP heat insulation layer arranged around the periphery of the cold insulation container, the VIP heat insulation layer is divided into at least an upper part and a lower part, and a tolerance gap for the heat supply siphon to pass through is reserved between the upper part and the lower part.

Preferably, the insulation assembly further comprises a polyurethane foam layer surrounding the perimeter of the VIP insulation layer.

Preferably, the insulation assembly further comprises an outer cover shell enclosing the polyurethane foam layer.

Preferably, a thermosiphon is arranged on the outer side of the cold insulation container, a cold quantity exporter is installed at the cold end of the stirling machine, and the thermosiphon is fixedly connected with the cold quantity exporter.

Preferably, the cold insulation container comprises an annular cold insulation side wall and a cold insulation bottom wall for blocking an opening at the lower side of the cold insulation side wall, the cold insulation side wall is formed by winding a metal plate, two opposite ends of the metal plate are connected through the cold insulation side wall which is longitudinally arranged, and the cold insulation side wall is provided with a temperature sensor for detecting the temperature in the cold insulation space.

Preferably, the body is provided with a mounting shell for mounting the stirling engine, a heat dissipation space and a refrigerating space which are isolated from each other are formed in the mounting shell, the hot end of the stirling engine is arranged in the heat dissipation space, and the cold end of the stirling engine is arranged in the refrigerating space.

Preferably, the mounting housing has an opening communicating with the refrigerated space through which the thermosiphon passes.

Preferably, the mounting housing includes a first housing and a second housing, the second housing is disposed in the upper portion of the first housing, and the second housing encloses a cooling space, and the first housing encloses a heat dissipation space.

By adopting the technical scheme, the utility model discloses can gain following technological effect: when the cover body needs to be opened, the air check valve can be conducted firstly, so that air can enter the cold insulation space, the internal pressure of the cold insulation space is increased, the internal and external pressure difference of the cover body is reduced, and the cover body is convenient to open.

Drawings

Fig. 1A to 1C are diagrams illustrating a process of opening a cover of a stirling cooler for facilitating uncapping according to another embodiment from different perspectives, respectively;

FIG. 2 depicts a first exploded state diagram of an embodiment of the Stirling cold insulation apparatus facilitating cover opening;

FIG. 3 depicts a second exploded state diagram of an embodiment of the Stirling cold insulation apparatus facilitating cover opening;

FIG. 4 depicts a schematic diagram of a Stirling cooler;

FIG. 5 is a diagram showing an exploded process of the Stirling cooler;

FIG. 6 shows an exploded process diagram of the cold-holding container;

fig. 7A and 7B are exploded views respectively showing the cover of the stirling cooler device for facilitating the opening of the cover according to the next embodiment from different perspectives;

fig. 8 shows a cross-sectional view of the lower cover of the cover body along the a-a direction.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention.

With reference to fig. 1A to 8, in one embodiment, the stirling cooler of the present application includes: the refrigerator comprises an outer cover shell 1, a polyurethane foam layer 2, a refrigerating mechanism 3, a Stirling refrigerator 4, a thermosiphon 5, a sealing ring 6, a display module 7, a cover body 8, a switching mechanism 9, an unlocking mechanism 10, a pivoting structure 11, an air check valve 12 and a splicing mechanism 13. The heat insulation assembly comprises: the refrigerator comprises a housing shell 1, a polyurethane foam layer 2 and a refrigerating mechanism 3. The body of the Stirling cold insulation device comprises: a housing shell 1, a Stirling refrigerator 4, a heat insulation assembly and a thermosiphon 5. As will be described in further detail below.

Referring to fig. 1A to 3, the housing case 1 includes: a lower casing part 1A and an upper casing part 1B mounted on the upper side of the lower casing part 1A. The housing 1 may be a metal body. The lower case 1A has a frame structure with an opening at the upper side, a ventilation grid is opened on the side wall, and grasping portions for grasping by hands are provided on the left and right sides. The upper casing 1B has two sets of openings corresponding to a space where the refrigerating mechanism 3 is installed and a space where the stirling refrigerator 4 is installed, respectively.

The polyurethane foam layer 2 has a first space 2A and a second space 2B, and the polyurethane foam layer 2 has a partition plate for partitioning the first space 2A and the second space 2B, and the partition plate is provided with a through hole through which the heat supply siphon 5 passes. The outer cover shell 1 is arranged outside the polyurethane foam layer 2 in a surrounding mode. The upper case portion 1B exposes the first space 2A. The first space 2A is used for installing the cold insulation container 3, the second space 2B is used for installing the stirling cooler 4, and one side of the second space 2B close to the ventilation grid of the housing case 1 is opened.

The refrigerating mechanism 3 includes a cold-keeping container 3A and an insulating assembly 3B. A cold insulation space is formed inside the cold insulation container 3A, and the heat insulation assembly 3B is wrapped on the outer wall of the cold insulation container 3A and is provided with a tolerance gap S where the heat supply siphon 5 contacts the outer wall of the cold insulation container 3A. The heat insulation component 3B only provides a tolerance gap S for the heat supply siphon pipe to contact the cold insulation container 3A, and the overall heat insulation performance is better. The cold-keeping container 3A includes an annular cold-keeping side wall 3C and a cold-keeping bottom wall 3D covering the lower side of the cold-keeping side wall 3C. The heat insulating assembly 3B includes: an upper VIP insulating layer 3E, a lower VIP insulating layer 3F and a thermal-insulated diapire 3G, upper VIP insulating layer 3E and lower VIP insulating layer 3F all are the annular, and both set up from top to bottom and form the VIP insulating layer of enclosing and establishing in cold Insulation container 3A periphery, and VIP insulating layer system indicates Vacuum Insulation Panel, Vacuum heat insulating board. And the polyurethane foam layer 2 is arranged around the VIP heat insulation layer. Go up VIP insulating layer 3E and cup joint in cold insulation lateral wall 3C's outer wall upside, lower VIP insulating layer 3F cup joints in cold insulation lateral wall 3C's outer wall downside, and VIP insulating layer 3F downside under the 3G closing cap of thermal-insulated diapire, and thermal-insulated diapire 3G also can be the VIP material. The allowance space S is located between the lower wall surface of the upper VIP heat insulating layer 3E and the upper wall surface of the lower VIP heat insulating layer 3F. The cold insulation side wall 3C can be an aluminum side wall, and the

heat insulation layers

3E and 3F can be made of other materials. The cold insulation side wall 3C is formed by winding a metal plate, the two opposite ends of the metal plate are connected through a longitudinally arranged splicing mechanism 13, specifically, a first longitudinal slot is formed between the two opposite ends of the left metal plate of the cold insulation side wall 3C, the splicing mechanism 13 for splicing the two sides of the first longitudinal slot is installed at the position of the first longitudinal slot of the cold insulation side wall 3C, and a temperature sensor for detecting the temperature of a cold insulation space can be installed on the splicing mechanism 13. In this embodiment, the upper VIP thermal insulation layer 3E is a closed annular structure, the lower VIP thermal insulation layer 3F is an open annular structure provided with a second longitudinal groove, and the second longitudinal groove exposes part of the splicing mechanism 13.

Referring to fig. 4 and 5, the stirling cooler 4 includes: the refrigerator comprises a Stirling engine 4A, a first shell 4B, a cold quantity exporter 4C, an electric control assembly 4D, a first fan 4E, a second fan 4F and a second shell 4G. First casing 4B and second casing 4G have constituteed the installation casing of installing parts such as stirling motor 4A, place first casing 4B's upper portion in second casing 4G in, and second casing 4G encloses and establishes into the refrigeration space, and first casing 4B encloses and establishes into the heat dissipation space, heat dissipation space and refrigeration space mutual isolation. The stirling machine 4A is mounted on the first casing 4B with its hot end disposed in the heat dissipation space and its cold end extending into the second casing 4G and disposed in the refrigeration space. Cold volume exporter 4C installs on cold junction 4G, and automatically controlled subassembly 4D installs on first casing 4B, and first fan 4E installs in stirling 4A one side, and second fan 4F installs on first casing 4B, and second casing 4G has an opening 4H that leads to the refrigeration space and pass with heat supply siphon 5. The specific principle of cooperation of the components of the stirling cooler 4 is conventional and will not be described in detail.

The thermosiphon 5 passes through the through hole of the partition of the heat insulating module 2, and the portion thereof located in the second space 2B is fixedly connected to the cold discharger 4C through the opening 4H, and the portion thereof located in the first space 2A is disposed in the allowance space S and contacts the outer wall of the cold-retention sidewall 3C.

The sealing ring 6 is mounted on the lower side of the cover body 8, the display module 7 is mounted on the upper shell portion 1B to display the working state of the Stirling cold insulation equipment, the display module 7 is provided with a microswitch 7A located on the side portion, one side of the cover body 8 is hinged to the upper shell portion 1B through a pivoting structure 11, the switch mechanism 9 is mounted on the cover body 8, and the unlocking mechanism 10 is used for controlling the unlocking state of the switch mechanism 9. The switch mechanism 9 is a conventional hook structure pivotally connected to the cover 8, and the unlocking mechanism 10 is a conventional toggle unlocking mechanism, which is not described in detail. When the cover 8 is turned over downward, the microswitch 7A is triggered, and a processor (not shown) in the display module 7 judges whether the cover 8 is closed or not according to a signal of the microswitch 7A.

Referring to fig. 7A to 8, the cover 8 is mounted on the housing 1 of the body, the cover 8 closes the cooling space from the upper portion, and the cover 8 is movable relative to the body to open and close the cooling space. The cover 8 includes a first cover 8A and a second cover 8B. First lid 8A installs in second lid 8B upside, and second lid 8B articulates on body 1 through pivot structure 11, offers the first air flue L1 of intercommunication cold insulation space, the second air flue L2 of intercommunication external space on the second lid 8B, and air check valve 12 installs between first air flue L1 and second air flue L2, and air check valve 12 allows air to circulate in one direction and ends in its opposite direction. The air check valve 12 can be a common mechanical valve, when the cold insulation space generates negative pressure and the cover 8 cannot be normally opened, the external hot air can enter the cold insulation space from the outside sequentially through the second air passage L2, the air check valve 12 and the first air passage L1, the air pressure in the cold insulation space is gradually increased until the mechanical valve is automatically closed, and the pressure difference between the inside and the outside of the cover 8 is small at the moment, so that the cover 8 can be conveniently opened. The air check valve 12 may also be an electrically controlled check valve, and when the cover 8 needs to be opened, the air check valve 12 is controlled to be turned on first, so that air enters the cold insulation space, the internal pressure of the cold insulation space is increased, the internal and external pressure difference of the cover 8 is reduced, and the cover 8 is further opened conveniently.

The above is the first embodiment of the present application. In another embodiment, the cold-keeping container 3A may not include the cold-keeping bottom wall 3D. In another embodiment, the VIP insulating layer of the insulating assembly 3B may be divided into three upper and lower portions, with a tolerance gap being left between adjacent portions. In another embodiment, the insulating assembly 3B may not include the insulating bottom wall 3G. In another embodiment, the insulation assembly 2 may not have the second space 2B. In another embodiment, the number of the air check valves 12 may be multiple, and the air check valves may be disposed at different positions of the cover.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The Stirling cold insulation equipment convenient for opening the cover comprises a body and a cover body (8), wherein the body comprises a Stirling engine (4A), a heat insulation assembly and a thermosiphon (5), the heat insulation assembly comprises a cold insulation container (3A), a cold insulation space is formed inside the cold insulation container (3A), the cover body (8) is movably connected to the body, the upper part of the cover body (8) seals the cold insulation space, and the thermosiphon (5) is connected with the cold insulation container and the cold end of the Stirling engine to conduct cold energy to the cold insulation container (3A); the method is characterized in that:

the cover (8) is provided with an air check valve (12) which allows air to flow in one direction and stops in the opposite direction, and the air check valve (12) is opened when negative pressure is generated in the cold storage space.

2. A stirling cold insulation device according to claim 1, wherein the cover (8) is movably connected to the body at one side by a pivot structure (11) and a switch mechanism (9) is provided between the other side and the body.

3. A stirling cold insulation device according to claim 1, wherein the heat insulation assembly further comprises a VIP heat insulation layer (3E, 3F) surrounding the periphery of the cold insulation container (3A), the VIP heat insulation layer (3E, 3F) being divided into at least an upper and a lower portion, and a clearance space (S) for passing the heat siphon (5) is provided between the upper and lower portions.

4. A stirling cold insulation device according to claim 3, wherein the insulation assembly further comprises a layer of polyurethane foam (2) surrounding the perimeter of the VIP insulation layers (3E, 3F).

5. A Stirling cold insulation device according to claim 4, wherein the heat insulation assembly further comprises a housing shell (1) enclosed outside the polyurethane foam layer (2).

6. A stirling cold insulation device according to claim 1 or 3, wherein a thermo siphon (5) is arranged outside the cold insulation container, a cold exporter (4C) is mounted at the cold end of the stirling machine (4A), and the thermo siphon (5) is fixedly connected with the cold exporter (4C).

7. A Stirling cold insulation device according to claim 6, wherein the cold insulation container (3A) comprises an annular cold insulation side wall (3C) and a cold insulation bottom wall (3D) for blocking an opening at the lower side of the cold insulation side wall (3C), the cold insulation side wall (3C) is formed by winding a metal plate, opposite ends of the metal plate are connected through a longitudinally arranged splicing mechanism (13), and a temperature sensor for detecting the temperature in the cold insulation space is arranged on the splicing mechanism (13).

8. A stirling cold insulation device according to claim 1, wherein the body has a mounting housing for mounting a stirling machine (4A), the mounting housing having a heat dissipation space and a cold space formed therein, the heat dissipation space and the cold space being isolated from each other, the hot end of the stirling machine (4A) being disposed in the heat dissipation space and the cold end of the stirling machine being disposed in the cold space.

9. Stirling cold insulation device according to claim 8, wherein the mounting housing has an opening (4H) communicating with the cold space, the thermosiphon (5) passing through the opening (4H).

10. A Stirling cold insulation apparatus according to claim 8, wherein the mounting case comprises a first case (4B) and a second case (4G), the second case (4G) being built in an upper portion of the first case (4B), and the second case (4G) being enclosed as a cooling space and the first case (4B) being enclosed as a heat dissipating space.