CN116697659A - Refrigerating device and analyzer - Google Patents

Abstract

The invention discloses a refrigerating device and an analyzer, and relates to the technical field of medical appliances. The refrigerating device comprises a refrigerating chamber, a heat conducting block, a refrigerating sheet and a radiator; the refrigerating chamber is provided with a containing space for containing the reagent bottle; the heat conducting block is attached to one side of the refrigerating chamber; the refrigerating sheet is provided with a cold end and a hot end which are opposite to each other, heat can be transferred from the cold end to the hot end, and the cold end is attached to one side of the heat conducting block, which is away from the refrigerating chamber, and is used for absorbing the refrigerating chamber; the radiator is attached to the hot end and used for radiating heat of the hot end. The invention solves the technical problem of poor refrigerating effect of the existing refrigerating device.

Description

Refrigerators and Analyzers

technical field

The invention relates to the technical field of medical devices, in particular to a refrigeration device and an analyzer.

Background technique

During the analysis and detection process of blood samples, some reagents such as latex need to be stored at low temperature. In order to store the reagents at low temperature, it is usually necessary to set up a refrigeration device to refrigerate the reagent bottles containing the reagents.

Traditional refrigeration devices are large in size, high in cost, complex in processing technology, and cumbersome in assembly operations. Although they can be used normally at room temperature without the use of copper sheets for heat conduction, they cannot reduce the temperature of the refrigerator to the target at high temperatures of 35 degrees and above. temperature, the cold storage effect is not good, and it is difficult to adapt to the harsh environment.

Contents of the invention

In view of this, the present invention provides a refrigerating device and an analyzer, which are used to solve the technical problem of poor refrigerating effect of existing refrigerating devices.

In order to solve the above-mentioned technical problems, the technical solution one that the present invention adopts is:

A kind of refrigeration device, described refrigeration device comprises:

The cold storage room is provided with a storage space for storing reagent bottles;

a heat conduction block attached to one side of the refrigerator;

The refrigerating sheet has opposite cold ends and hot ends, and can transfer heat from the cold ends to the hot ends. the refrigerator;

and a heat sink attached to the hot end and used to dissipate heat from the hot end.

In some embodiments of the refrigerating device, the refrigerating device further includes a first fastener, the first fastener passes through the heat conduction block and extends into the heat sink, and the heat conduction block The first fastener is connected with the radiator so as to tightly press the cooling fin with the radiator.

In some embodiments of the refrigerating device, a groove is provided on the side of the heat conducting block opposite to the refrigerating chamber, and a through hole is opened at the bottom of the groove, and the first fastener includes sequentially connected The head, the rod and the tail, the rod is passed through the through hole, and fits with the through hole, the head is accommodated in the groove, and is connected with the side wall of the groove set at intervals, the tail extends into the radiator;

The refrigerating device further includes a heat insulation pad, and the heat insulation pad is arranged between the head and the groove bottom of the groove.

In some embodiments of the refrigerating device, the refrigerating device further includes a housing and a fan, the housing is provided with an air duct, and the housing is provided with an air inlet, an air outlet and an opening, and the air duct The air inlet, the air outlet and the opening can all communicate with the outside world;

The opening is located between the air inlet and the air outlet, the radiator extends into the air duct through the opening, and is connected to the inner wall of the housing; the fan is accommodated in the air duct , and close to the air inlet, the fan is used to take in air from outside the air inlet, and drive the wind to flow out of the air duct from the air outlet after passing through the radiator.

In some embodiments of the refrigerating device, the refrigerating device further includes a first heat insulating strip, a second heat insulating strip and a plurality of second fasteners, the radiator, the first heat insulating strip and The second heat insulation strips are all accommodated in the air duct, the radiator is spaced apart from the inner wall of the housing, the first heat insulation strip and the second heat insulation strip are respectively connected to the heat dissipation On opposite sides of the device, a part of the plurality of second fasteners is used to fix the housing to the first heat insulation strip, and the other part is used to insulate the housing from the second heat insulation strip. bar is fixed.

In some embodiments of the refrigerating device, the housing is further provided with a first positioning notch corresponding to the position of the opening, the first heat insulation strip is provided with a first positioning protrusion, and the first positioning protrusion protruding into the first positioning notch, so as to be able to locate the relative position of the radiator and the housing;

The housing is also provided with a second positioning notch corresponding to the position of the opening, and the second heat insulation strip is provided with a second positioning protrusion, and the second positioning protrusion extends into the second positioning notch, so as to Relative positions of the heat sink and the housing can be located.

In some embodiments of the refrigerating device, the refrigerating device further includes a first thermal insulation element, the first thermal insulation element is arranged between the heat conduction block and the heat sink, and surrounds the cooling sheet .

In some embodiments of the refrigerating device, a connecting plate is provided on the side wall of the refrigerating chamber close to the heat conduction block, and a counterbore is opened on the connecting plate, and the refrigerating device further includes a third fastener , the third fastener passes through the counterbore, and is used to connect the connection plate with the heat conduction block.

In some embodiments of the refrigerating device, the refrigerating device further includes a temperature control switch, and a first temperature sensor and/or a second temperature sensor, the temperature control switch is installed on the radiator, and the first temperature sensor The second temperature sensor is installed on the heat conduction block and used for detecting the temperature of the heat conduction block.

In order to solve the above-mentioned technical problems, the technical scheme two that the present invention adopts is:

An analyzer comprising the refrigeration unit described in the above embodiments.

Implementing the embodiment of the present invention will at least have the following beneficial effects:

The above-mentioned refrigerating device is applied to the analyzer, which can make itself and the analyzer have a technical effect of good cooling effect. Specifically, the refrigerating device of the present invention can transfer heat from the cold end to the hot end by setting the refrigerating sheet. Effect, to refrigerate refrigeration, the cooling capacity of the refrigeration sheet is high, and can meet the environment above high temperature to reduce the refrigerator room to the target temperature, and the present invention also arranges a heat conduction block between the refrigeration sheet and the refrigerator room, and also provides a heat conduction block at the hot end The radiator is connected to the top, so that the two ends of the refrigerating sheet are directly in contact with the conduction and heat dissipation, which improves the heat transfer efficiency, thereby solving the technical problem of poor refrigeration effect of the existing refrigerating device.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. Those skilled in the art can also obtain other drawings based on these drawings without creative work.

Fig. 1 is the structural representation of refrigeration unit and reagent bottle in an embodiment;

Fig. 2 is a cross-sectional view of the structure shown in Fig. 1;

Fig. 3 is a schematic diagram of an enlarged structure of part A in Fig. 2;

Fig. 4 is a partial structural schematic diagram of the refrigeration device shown in Fig. 1;

Fig. 5 is a partial structural schematic diagram of the refrigeration device shown in Fig. 1;

Fig. 6 is a partial structural diagram of an analyzer in one embodiment.

Among them: 1. Refrigerator; 11. Connecting plate; 12. Annular insulation; 13. Third fastener; 2. Heat conduction block; 21. Groove; 1. Heat insulation strip; 411. First positioning protrusion; 5. Second fastener; 6. First fastener; 61. Head; 7. Heat insulation pad; 8. Shell; 81. Air inlet; 82. Air outlet; 83. Opening; 84. Air duct; 85. First positioning gap; 86. Second positioning gap; 9. Fan;

100, the first heat preservation piece; 200, the second heat preservation piece; 300, the third heat preservation piece; 400, the temperature control switch; 500, the first temperature sensor; 600, the second temperature sensor; 700, the revolving door; 701, block Insulation piece; 800, reagent bottle.

Detailed ways

In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the associated drawings. Preferred embodiments of the invention are shown in the accompanying drawings. However, the present invention can be embodied in many other different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided to make the understanding of the disclosure of the present invention more thorough and comprehensive.

It should be noted that when an element is referred to as being “fixed” to another element, it can be directly on the other element or there can also be an intervening element. 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 similar expressions are used herein for purposes of illustration only.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field of the invention. The terms used herein in the description of the present invention are for the purpose of describing specific embodiments only, and are not intended to limit the present invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

As shown in FIGS. 1-5 , in an embodiment of a refrigerating device, the refrigerating device includes a refrigerating chamber 1 , a heat conducting block 2 , a cooling sheet 3 and a radiator 4 . Refrigerator 1 has a storage space for storing reagent bottles 800 . The heat conduction block 2 is attached to one side of the refrigerator compartment 1 . The cooling sheet 3 has opposite cold end and hot end, and can transfer heat from the cold end to the hot end. The cold end is attached to the side of the heat conduction block 2 facing away from the refrigerating chamber 1 and is used to absorb the refrigerating chamber 1 . The radiator 4 is attached to the hot end and is used for dissipating heat from the hot end.

In this embodiment, by setting the cooling sheet 3, the effect of the cooling sheet 3 to transfer heat from the cold end to the hot end is used to refrigerate the refrigeration. 1 down to the target temperature, and the present invention also sets a heat conduction block 2 between the refrigerating sheet 3 and the refrigerating chamber 1, and also connects a radiator 4 on the hot end, so that the two ends of the refrigerating sheet 3 are directly connected to the cooling and cooling chambers. The heat dissipation contact improves the heat transfer efficiency, thereby solving the technical problem of the poor refrigeration effect of the existing refrigeration device, and by setting the refrigeration sheet 3 to directly contact the refrigeration sheet 3 and the radiator 4, the number of parts can be reduced and the cost can be reduced .

In one embodiment of the refrigerating device, the refrigerating device further includes a first fastener 6, the first fastener 6 passes through the heat conduction block 2, and extends into the radiator 4, and the heat conduction block 2 passes through the first fastener 6 It is connected with the radiator 4 so as to tightly compress the cooling sheet 3 with the radiator 4 .

In this embodiment, the first fasteners 6 can be fasteners such as screws and bolts. By setting the first fasteners 6, the heat conduction block 2 and the radiator 4 can be connected together, so that the cooling fin 3 can be fixed. The clamping function is formed, and the heat conduction block 2, the cooling fin 3 and the radiator 4 can be formed as a whole, which improves the stability of the connection and facilitates the overall disassembly and assembly.

Preferably, in order to improve the stability of the connection, the first fastener 6 can be made of metal material.

In one embodiment of the refrigeration device, a groove 21 is provided on the side of the heat conduction block 2 opposite to the refrigerator compartment 1, and a through hole is opened at the bottom of the groove 21. The first fastener 6 includes a head 61, which is sequentially connected. The rod part and the tail part, the rod part penetrates through the through hole and fits with the through hole in a gap, the head part 61 is accommodated in the groove 21 and is spaced apart from the side wall of the groove 21, and the tail part extends into the radiator 4. The refrigerating device also includes a thermal insulation pad 7 , which is arranged between the head 61 and the groove bottom of the groove 21 .

In this embodiment, it can be understood that since the tail of the first fastener 6 extends into the radiator 4, and the radiator 4 is required to dissipate heat from the hot end, the temperature of the radiator 4 itself is also relatively high. , and will transfer heat to the first fastener 6 protruding into the radiator 4, causing the temperature of the first fastener 6 to rise. In order to prevent this part of heat from returning to the heat conducting block 2, this implementation For example, both the rod part and the head part 61 are set so as not to have heat transfer or indirect heat transfer with the heat conduction block 2, specifically, the rod part is arranged to be clearance fit with the through hole, so that the rod part does not contact the heat conduction block 2 , and the head 61 is arranged to have a gap with the side wall of the groove 21, and the second is that a heat insulating pad 7 is set between the head 61 and the groove bottom of the groove 21, separating the head 61 and The groove bottom of the groove 21, and by arranging the heat insulating pad 7 can also play the role of heat insulation, can prevent the heat of the head 61 from being transferred to the groove bottom of the groove 21, so set, can make the heat of the radiator 4 It will not be transmitted back to the heat conduction block 2 through the first fastener 6, which can improve the cooling effect and cooling efficiency, and reduce losses.

In addition, the setting of the groove 21 also serves as a countersunk head, which can accommodate the head 61 of the first fastener 6 and prevent the head 61 from protruding and affecting the connection and installation of other structures.

Preferably, the heat conduction pad 7 can be sleeved on the rod of the first fastener 6, and the heat conduction pad 7 can be a structural member in the shape of an annular stepped sleeve, which can make the head 61 and the groove bottom of the groove 21 Forming a space can also wrap the rod part to prevent the rod part from contacting the side wall of the through hole.

In one embodiment of the refrigerating device, the refrigerating device further includes a housing 8 and a fan 9, the housing 8 is provided with an air duct 84, the housing 8 is provided with an air inlet 81, an air outlet 82 and an opening 83, and the air duct 84 The air inlet 81 , the air outlet 82 and the opening 83 can all communicate with the outside world. The opening 83 is located between the air inlet 81 and the air outlet 82 , and the radiator 4 extends into the air duct 84 through the opening 83 and connects with the inner wall of the casing 8 . The fan 9 is accommodated in the air duct 84 and is close to the air inlet 81 . The fan 9 is used to take in air from the air inlet 81 , and drive the wind to flow out of the air duct 84 from the air outlet 82 after passing through the radiator 4 .

In this embodiment, specifically, the casing 8 can be enclosed to form a polygonal shape such as a rectangle, thereby forming an air duct 84. By opening an opening 83, it is convenient for the radiator 4 to extend into and be accommodated in the air duct 84. In this way, Under the action of the fan 9, the heat sink 4 can be dissipated by blowing air to further improve the overall cooling effect.

In one embodiment of the refrigerating device, the refrigerating device further includes a first heat insulating strip 41, a second heat insulating strip and a plurality of second fasteners 5, and the radiator 4, the first heat insulating strip 41 and the second heat insulating strip 41 The strips are all accommodated in the air duct 84, the radiator 4 is spaced from the inner wall of the housing 8, the first heat insulation strip 41 and the second heat insulation strip are respectively connected to the opposite sides of the radiator 4, and a plurality of second fastening strips A part of the piece 5 is used to fix the housing 8 to the first heat insulation strip 41 , and the other part is used to fix the housing 8 to the second heat insulation strip.

In this embodiment, by setting the first heat insulation strip 41 and the second heat insulation strip on the radiator 4, and the radiator 4 is connected with the housing 8 through the first heat insulation strip 41 and the second heat insulation strip. Together, the heat of the radiator 4 can be prevented from being transferred to the housing 8 , and the heat of the radiator 4 can be prevented from being transferred to the outside of the housing 8 through the housing 8 and affecting other devices in the analyzer.

It should be emphasized that, in this embodiment, the radiator 4 does not directly contact the inner wall of any side of the housing 8 .

Specifically, both the first heat insulation strip 41 and the second heat insulation strip can be fixedly connected to the radiator 4 by fasteners such as screws.

In one embodiment of the refrigerating device, a first positioning notch 85 is provided at the position corresponding to the opening 83 of the housing 8, and the first heat insulation strip 41 is provided with a first positioning protrusion 411, and the first positioning protrusion 411 extends into the first positioning protrusion 411. A positioning notch 85 is used to locate the relative position of the radiator 4 and the housing 8 . The housing 8 is also provided with a second positioning notch 86 at the position corresponding to the opening 83, and the second heat insulating strip is provided with a second positioning protrusion, and the second positioning protrusion extends into the second positioning notch 86, so as to be able to position the radiator 4 and The relative position of the shell 8.

In this embodiment, specifically, taking the case 8 as a rectangular shape and placed horizontally as an example, the opening 83 can be opened on the upper side wall of the case 8, and the upper side wall is separated by the opening 83, so that the sides on both sides The upper end surface of the wall is exposed, and the first positioning notch 85 can be provided on the upper end surface of the side wall on both sides of the opening 83. By setting the first positioning notch 85, it can be matched with the first positioning protrusion 411 on the first heat insulation strip 41. Cooperate, thereby positioning the relative positions of the radiator 4 and the housing 8 .

The setting position, mode and effect of the second positioning notch 86 and the second positioning protrusion are similar to the first positioning notch 85 and the first positioning protrusion 411. The positioning notches are respectively arranged on opposite sides, so that the first positioning protrusion 411 and the second positioning protrusion and the first positioning notch 85 arranged on both sides of the radiator 4 can also play the effect of propping up the radiator 4, so that The radiator 4 can be floating to form a space with the bottom wall of the housing 8 , so as to prevent the heat of the radiator 4 from being transferred to the housing 8 .

In an embodiment of a refrigeration device, the refrigeration device further includes a first heat preservation member 100 , and the first heat preservation member 100 is disposed between the heat conduction block 2 and the radiator 4 , and surrounds the refrigeration sheet 3 .

In this embodiment, by providing the first thermal insulation member 100 , the refrigeration effect can be further improved, and the influence of the outside world on the refrigeration sheet 3 can be avoided.

Preferably, in combination with the previous embodiments, the heat conduction block 2 can be a T-shaped block structure, and the raised block abuts against the cold end of the refrigeration sheet 3, and the other side abuts against the refrigerating chamber 1, so as to be able to support For a larger refrigerated room 1 , the first thermal insulation member 100 can be surrounded together with the raised block to further completely wrap the refrigerated sheet 3 .

Further preferably, the refrigerating device can also add a second heat preservation piece 200 , the second heat preservation piece 200 is an annular structural piece, which is arranged around the heat conduction block 2 and placed on the first heat preservation piece 100 . By enclosing the heat conduction block 2 with the heat insulating material, the influence of the outside world on the heat conduction block 2 can be further avoided, the heat preservation effect can be further improved, and thus the cooling effect can be improved.

Further preferably, the refrigerating device further includes a third thermal insulation component 300 , which is placed on the second thermal insulation component 200 and sleeved in the refrigerator compartment 1 . Under such setting, combined with the previous embodiment, the first heat insulation strip 41, the first heat insulation element 100, the second heat insulation element 200 and the third heat insulation element 300 are in contact with each other in sequence, so that the cooling plate 3 and the heat conduction block 2 can be completely isolated from the outside world , to reduce external influences.

In one embodiment of the refrigerating device, a connecting plate 11 is provided on the side wall of the refrigerating chamber 1 close to the heat conduction block 2, and a counterbore is opened on the connecting plate 11, and the refrigerating device further includes a third fastener 13, the third fastening The element 13 is passed through the counterbore, and is used for connecting the connection plate 11 with the heat conduction block 2 .

In this embodiment, the connecting plate 11 can facilitate the connection of the refrigerating room 1 and the heat conducting block 2, so that the refrigerating room 1, the heat conducting block 2, the refrigerating sheet 3 and the radiator 4 are connected together to facilitate the whole as a whole. One module is disassembled and installed on the analyzer, and by setting the counterbore, combined with the countersunk head setting method of the first fastener 6 in the previous embodiment, it can prevent the fastener from protruding outside, thereby facilitating the first The thermal insulation 100, the second thermal insulation 200, and the third thermal insulation 300 are set in place.

Specifically, the refrigerator compartment 1 can be formed by folding and welding aluminum plates, and the connecting plate 11 can be connected to the refrigerator compartment 1 by welding.

In one embodiment of the refrigerating device, the refrigerating device further includes a temperature control switch 400, and a first temperature sensor 500 and/or a second temperature sensor 600. The temperature control switch 400 is installed on the radiator 4, and the first temperature sensor 500 is installed on the The radiator 4 is used to detect the temperature of the radiator 4 , and the second temperature sensor 600 is installed on the heat conduction block 2 and used to detect the temperature of the heat conduction block 2 .

In this embodiment, by setting the temperature control switch 400 and the first temperature sensor 500, it is possible to prevent accidents caused by the excessive temperature of the radiator 4, and the second temperature sensor 600 can indirectly know the temperature of the cooling plate by detecting the temperature of the heat conduction block 2. The temperature of the cold end of 3 is convenient for the staff to detect whether the refrigerating sheet 3 is working normally. Preferably, in combination with the previous embodiments, the outgoing wires of all temperature sensors, cooling plates 3 and fans 9 are arranged on one side for easy management.

In combination with the previous embodiments, it is explained here that the first thermal insulation element 100, the second thermal insulation element 200 and the third thermal insulation element 300 can all be made of thermal insulation cotton, and can be stuck on the corresponding parts by pasting. The thermal insulation pad 7 It can be made of materials such as silica gel.

In a kind of refrigerating device embodiment, refrigerating device also comprises an annular heat-insulating part 12 and ring pad, and ring-shaped pad sticks and rings at the entrance of refrigerating chamber 1, and ring-shaped heat-insulating part 12 is pasted on the side of the ring pad away from refrigerating chamber 1. On one side, by setting the ring-shaped heat insulating element 12 to cooperate with the third heat insulating element 300, the cold storage room 1 can be further wrapped to form a better heat preservation effect and protect the low temperature of the cold storage room 1 from being transmitted and lost.

The invention also relates to an analyzer comprising the refrigeration unit of the preceding embodiments.

By using the refrigerating device in the previous embodiment, the reagent can be refrigerated for the analyzer, so that the reagent can meet the temperature requirements through the refrigerating device even in a high temperature environment, which facilitates the subsequent detection operation of the analyzer.

It can be understood that, as shown in FIG. 6 , the analyzer generally includes a box body. In order to facilitate the replacement of reagents, the box body is provided with a revolving door 700 . Part 701, the block heat insulating part 701 is provided with a protruding part corresponding to the inner ring of the annular heat insulating part 12. During the rotation process of the revolving door 700, the protruding part can be extended into the annular heat insulating part 12, so as to cooperate with the annular heat insulating part. The heating element 12 can further avoid the heat loss of the refrigerator compartment 1, and can also reduce the generation of condensed water, and can also play the effect of compressing the reagent bottle 800 at the same time.

The technical features of the above embodiments can be combined arbitrarily. To make the description concise, all possible combinations of the technical features in the above embodiments are not described. However, as long as there is no contradiction in the combination of these technical features, they should be It is considered to be within the range described in this specification.

The above examples only express several implementations of the present invention, and the descriptions thereof are relatively specific and detailed, but should not be construed as limiting the scope of the patent application. It should be noted that, for those skilled in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent for the present invention should be based on the appended claims.

Claims (10)

1. A refrigeration device, characterized in that the refrigeration device comprises: The cold storage room is provided with a storage space for storing reagent bottles; a heat conduction block attached to one side of the refrigerator; The refrigerating sheet has opposite cold ends and hot ends, and can transfer heat from the cold ends to the hot ends. the refrigerator; and a heat sink attached to the hot end and used to dissipate heat from the hot end. 2. The refrigerating device according to claim 1, characterized in that, the refrigerating device further comprises a first fastener, and the first fastener passes through the heat conducting block and extends into the heat sink , the heat conduction block is connected to the heat sink through the first fastener, so as to tightly press the cooling sheet with the heat sink. 3. The refrigerating device according to claim 2, wherein a groove is provided on the side of the heat conducting block opposite to the refrigerating chamber, a through hole is opened at the bottom of the groove, and the first tight The fastener includes a head, a rod and a tail connected in sequence, the rod passes through the through hole and fits with the through hole, the head is accommodated in the groove, and is connected to the through hole. The side walls of the groove are arranged at intervals, and the tail extends into the radiator; The refrigerating device further includes a heat insulation pad, and the heat insulation pad is arranged between the head and the groove bottom of the groove. 4. The refrigerating device according to claim 1, wherein the refrigerating device further comprises a housing and a fan, the housing is provided with an air duct, and the housing is provided with an air inlet, an air outlet and an opening , the air duct can communicate with the outside world through the air inlet, the air outlet and the opening; The opening is located between the air inlet and the air outlet, the radiator extends into the air duct through the opening, and is connected to the inner wall of the housing; the fan is accommodated in the air duct , and close to the air inlet, the fan is used to take in air from outside the air inlet, and drive the wind to flow out of the air duct from the air outlet after passing through the radiator. 5. The refrigerating device according to claim 4, wherein the refrigerating device further comprises a first heat insulating strip, a second heat insulating strip and a plurality of second fasteners, the radiator, the first Both a heat insulation strip and the second heat insulation strip are accommodated in the air duct, the radiator is spaced apart from the inner wall of the housing, and the first heat insulation strip and the second heat insulation strip are respectively Connected to opposite sides of the heat sink, one part of the plurality of second fasteners is used to fix the housing to the first heat insulation strip, and the other part is used to fix the housing to the first heat insulation bar. The second insulation strip is fixed. 6. The refrigerating device according to claim 5, wherein a first positioning notch is provided at a position corresponding to the opening of the housing, and a first positioning protrusion is provided on the first heat insulation strip, so that The first positioning protrusion extends into the first positioning notch, so as to be able to locate the relative position of the radiator and the housing; The housing is also provided with a second positioning notch corresponding to the position of the opening, and the second heat insulation strip is provided with a second positioning protrusion, and the second positioning protrusion extends into the second positioning notch, so as to Relative positions of the heat sink and the housing can be located. 7. The refrigerating device according to claim 1, characterized in that, the refrigerating device further comprises a first heat preservation piece, the first heat preservation piece is arranged between the heat conduction block and the heat sink, and is surrounded by on the refrigeration sheet. 8. The refrigerating device according to claim 1, wherein a connecting plate is provided on the side wall of the refrigerating chamber close to the heat conduction block, and a counterbore is opened on the connecting plate, and the refrigerating device further includes The third fastener is passed through the counterbore, and is used to connect the connection plate with the heat conduction block. 9. The refrigerating device according to claim 1, characterized in that, the refrigerating device further comprises a temperature control switch, and a first temperature sensor and/or a second temperature sensor, the temperature control switch is installed on the radiator, the The first temperature sensor is installed on the heat sink and is used to detect the temperature of the heat sink, and the second temperature sensor is installed on the heat conduction block and is used to detect the temperature of the heat conduction block. 10. An analyzer, characterized in that it comprises the refrigeration device according to any one of claims 1-9.