CN211955513U - Liquid heating device of sample analysis equipment - Google Patents

Abstract

A liquid heating device of a sample analysis apparatus includes a heating chamber, a liquid discharge chamber, and a heating unit. The heating unit has a heat generating portion, and at least the heating chamber has a heat generating portion for heating the liquid in the heating chamber, among the heating chamber and the liquid discharge chamber. The liquid is heated in the heating cavity firstly, a first passage is arranged between the heating cavity and the liquid discharging cavity, and the liquid heated in the heating cavity needs to enter the liquid discharging cavity through the first passage. This first passageway is located the top of generating heat portion or sets up around generating heat for the liquid that enters into the flowing back chamber from the heating chamber mainly is for being located the liquid around the portion of generating heat, can guarantee like this that the liquid that gets into flowing back intracavity can be by more abundant heating, and then the liquid temperature that flows into the flowing back chamber is unanimous basically, and liquid gets into behind the flowing back chamber, further mixing in the flowing back intracavity again, thereby improves the homogeneity of flowing back intracavity liquid, and the liquid that is heated flows out by the liquid outlet at last.

Description

Liquid heating device of sample analysis equipment

Technical Field

The application relates to the field of medical equipment, in particular to a liquid heating device in sample analysis equipment.

Background

In sample analysis equipment, especially automatic sample analysis equipment (such as a full-automatic biochemical immunoassay analyzer) needs to clean some objects (such as reaction cups, sample needles, reagent needles, mixing mechanisms and the like) in a normal test process, and as the requirement on the accuracy of a test result is higher and higher, the requirement on cleaning is higher and higher. Not only is the mechanism required to be cleaned, but also the temperature of the cleaning liquid needs to be strictly controlled and kept constant.

In the conventional liquid heating structure, it is common to simply insert a heating unit into a cavity of a container for heating, and then discharge the heated liquid. However, this method has low heating efficiency, insufficient heating of the liquid, and uneven liquid temperature at each part in the cavity.

Disclosure of Invention

The application provides a liquid heating device of sample analysis equipment for improve the homogeneity of liquid heating.

In one embodiment of the present application, there is provided a liquid heating apparatus of a sample analysis device, comprising:

the heating cavity is provided with a liquid inlet, and liquid enters the heating cavity;

the liquid discharging cavity is provided with a liquid outlet and is used for outputting heated liquid;

and a heating unit having a heat generating portion, of the heating chamber and the liquid discharge chamber, at least the heat generating portion being provided in the heating chamber, for heating the liquid in the heating chamber; the heating cavity and the liquid discharging cavity are separated, a first channel is arranged between the heating cavity and the liquid discharging cavity, the heating cavity and the liquid discharging cavity are communicated through the first channel, and the first channel is located above the heating portion or arranged around the heating portion.

In one embodiment, the heating part extends into the liquid discharge cavity from the heating cavity and is used for heating liquid in the liquid discharge cavity.

In one embodiment, the maximum width a1 of the first channel has a value range of: a1 is more than or equal to 0.5mm and less than or equal to 6 mm; or the value range of the ratio b1 of the maximum width of the first channel to the maximum width of the heating cavity where the first channel is located is as follows: 1/15 is not less than b1 is not less than 1/3.

In one embodiment, the distance c1 between the outermost side of the first channel and the heat generating portion ranges from: c1 is more than or equal to 0.5mm and less than or equal to 23 mm; or the value range of the ratio d1 between the distance between the outermost side of the first channel and the heating part and the maximum width of the heating cavity where the first channel is located is as follows: d1 is not more than 1/3.

In one embodiment, the heating chamber and the liquid discharge chamber are separated by a first partition, and the first passage is provided on the first partition.

In one embodiment, the first partition has a first through hole, the heat generating portion extends from the heating cavity into or through the first through hole, and the first channel is a gap between a hole wall of the first through hole and the heat generating portion.

In one embodiment, the first channel includes a plurality of holes disposed around the heat generating portion.

In one embodiment, the first partition has a first through hole, the heat generating portion extends from the heating cavity into or through the first through hole, and the hole is disposed around the first through hole.

In one embodiment, the heating cavity comprises at least two sub-heating cavities, the sub-heating cavities are sequentially butted, the sub-heating cavity located at the outermost end of one side is communicated with the liquid discharge cavity, the first channel is arranged between the sub-heating cavity located at the outermost end of one side and the liquid discharge cavity, adjacent sub-heating cavities are communicated through the second channel, at least one sub-heating cavity is provided with a liquid inlet, and the heating part is located in at least one sub-heating cavity and used for heating liquid in the corresponding sub-heating cavity.

In one embodiment, the heating chambers include a first heating chamber and a second heating chamber, the first channel is disposed between the first heating chamber and the liquid discharge chamber, the first heating chamber and the second heating chamber are separated from each other, and a second channel is disposed therebetween, the first heating chamber and the second heating chamber are communicated through the second channel, the liquid inlet is communicated with the second heating chamber, and at least the second heating chamber of the first heating chamber and the second heating chamber is provided with the heat generation portion.

In one embodiment, the heat generating portion extends from the second heating cavity into the first heating cavity.

In one embodiment, the heat generating portion extends from the second heating cavity into and through the first heating cavity and into the liquid discharge cavity.

In one embodiment, the maximum width a2 of the second channel has a value range of: a2 is more than or equal to 0.5mm and less than or equal to 6 mm; or the ratio b2 of the maximum width of the second channel to the maximum width of the second heating cavity has the following value range: 1/15 is not less than b2 is not less than 1/3.

In one embodiment, the distance c2 between the outermost side of the second channel and the heat generating portion ranges from: c2 is more than or equal to 0.5mm and less than or equal to 23 mm; or the value range of the ratio d2 between the distance between the outermost side of the second channel and the heating part and the maximum width of the second heating cavity is as follows: d2 is not more than 1/3.

In one embodiment, the second channel is located above or around the heat generating portion.

In one embodiment, adjacent sub-heating cavities are separated by a second partition, and the second channel is arranged on the second partition.

In one embodiment, the second partition has a second through hole, the heat generating portion extends into or passes through the second through hole from the second heating cavity, and the second channel is a gap between a hole wall of the second through hole and the heat generating portion.

In one embodiment, the second channel includes a plurality of holes disposed around the heat generating portion.

In one embodiment, the second partition has a second through hole, the heat generating portion extends from the second heating cavity into or through the second through hole, and the hole is disposed around the second through hole.

In one embodiment, the length of the first heating cavity in the vertical direction is longer than the length of the second heating cavity in the vertical direction.

In one embodiment, the heating device comprises a heating container, wherein the cavity of the heating container is divided into three cavities arranged from bottom to top, and the cavities are a second heating cavity, a first heating cavity and a liquid discharge cavity from bottom to top respectively.

In one embodiment, the liquid inlet is positioned on the bottom wall and/or the side wall of the heating cavity; the liquid outlet is positioned on the top wall and/or the side wall of the liquid discharge cavity.

In one embodiment, the liquid discharging device further comprises a temperature detection unit, wherein the temperature detection unit is communicated with the liquid discharging cavity and used for detecting the temperature of liquid in the liquid discharging cavity.

In one embodiment, the heat generating portion is a strip structure, and is vertically disposed in the heating cavity and the liquid discharging cavity.

In one embodiment of the present application, there is provided a liquid heating apparatus of a sample analysis device, comprising:

the heating cavity comprises a first heating cavity and a second heating cavity, the first heating cavity and the second heating cavity are separated by a second partition plate, the second partition plate is provided with a second through hole, and the second heating cavity is communicated with the liquid inlet and is used for allowing liquid to enter the second heating cavity;

the liquid discharging cavity is provided with a liquid outlet and is used for outputting heated liquid; the first heating cavity and the liquid discharge cavity are separated by a first partition plate, and the first partition plate is provided with a first through hole;

the heating unit is provided with a heating part, and the heating part extends into the first heating cavity from the second heating cavity through the second through hole and extends into the liquid discharge cavity from the second heating cavity through the first through hole; and a gap is formed between the hole wall of the second through hole and the heating part, so that liquid in the second heating cavity flows into the first heating cavity along the heating part through the gap between the second through hole and the heating part, and a gap is formed between the hole wall of the first through hole and the heating part, so that the liquid in the first heating cavity flows into the liquid discharge cavity along the heating part through the gap between the first through hole and the heating part.

The liquid heating apparatus according to the above embodiment includes a heating chamber, a liquid discharge chamber, and a heating unit. The heating cavity is provided with a liquid inlet for liquid to enter the heating cavity. The liquid discharge cavity is provided with a liquid outlet and used for outputting heated liquid. The heating unit has a heat generating portion, and at least the heating chamber has a heat generating portion for heating the liquid in the heating chamber, among the heating chamber and the liquid discharge chamber. Liquid is heated in the heating cavity at first, is equipped with first passageway between this heating cavity and the flowing back chamber, and the liquid that heats in the heating cavity need get into the flowing back chamber through first passageway, and when partly liquid flowed to the flowing back chamber through first passageway, other liquid moved in the heating cavity to strengthen the mixing of each liquid in the heating cavity, make each part liquid have more and tend to unanimous initial temperature. This first passageway is located the top of generating heat portion or sets up around generating heat for the liquid that enters into the flowing back chamber from the heating chamber mainly is for being located the liquid around the portion of generating heat, can guarantee like this that the liquid that gets into flowing back intracavity can be by more abundant heating, and then the liquid temperature that flows into the flowing back chamber is unanimous basically, and liquid gets into behind the flowing back chamber, further mixing in the flowing back intracavity again, thereby improves the homogeneity of flowing back intracavity liquid, and the liquid that is heated flows out by the liquid outlet at last.

Drawings

FIG. 1 is a perspective, cross-sectional view of a liquid heating apparatus according to an embodiment of the present application;

FIG. 2 is a front perspective cross-sectional view of a liquid heating apparatus according to an embodiment of the present application;

FIG. 3 is a perspective, cross-sectional view of a liquid heating apparatus according to another embodiment of the present application;

FIG. 4 is a schematic structural view of a first separator plate according to an embodiment of the present application;

FIG. 5 is a schematic view of a first separator plate according to another embodiment of the present application;

fig. 6-8 are schematic views of the positions of the liquid inlet and the liquid outlet in several different embodiments of the present application.

Detailed Description

The present invention will be described in further detail with reference to the following detailed description and accompanying drawings. Wherein like elements in different embodiments are numbered with like associated elements. In the following description, numerous details are set forth in order to provide a better understanding of the present application. However, those skilled in the art will readily recognize that some of the features may be omitted or replaced with other elements, materials, methods in different instances. In some instances, certain operations related to the present application have not been shown or described in detail in order to avoid obscuring the core of the present application from excessive description, and it is not necessary for those skilled in the art to describe these operations in detail, so that they may be fully understood from the description in the specification and the general knowledge in the art.

Furthermore, the features, operations, or characteristics described in the specification may be combined in any suitable manner to form various embodiments. Also, the various steps or actions in the method descriptions may be transposed or transposed in order, as will be apparent to one of ordinary skill in the art. Thus, the various sequences in the specification and drawings are for the purpose of describing certain embodiments only and are not intended to imply a required sequence unless otherwise indicated where such sequence must be followed.

The numbering of the components as such, e.g., "first", "second", etc., is used herein only to distinguish the objects as described, and does not have any sequential or technical meaning. The term "connected" and "coupled" when used in this application, unless otherwise indicated, includes both direct and indirect connections (couplings).

The present embodiments provide a liquid heating apparatus for a sample analysis device, including but not limited to a biochemical immunoassay analyzer. The liquid heating apparatus is used for heating a liquid which can be used for cleaning various components (for example, a reaction cup, a sample needle, a reagent needle, a mixing mechanism, and the like), and of course, the heated liquid can be used for other purposes than cleaning and is not limited to the purpose of cleaning.

Referring to fig. 1 to 3, the liquid heating apparatus includes a liquid discharge chamber 100, a heating chamber 200, and a heating unit 300.

The heating chamber 200 is mainly used for heating liquid and has a liquid inlet 201, as shown by an arrow at the liquid inlet 201 in fig. 1, the liquid enters the heating chamber 200 through the liquid inlet 201. The liquid discharge chamber 100 has a liquid outlet 101 for outputting heated liquid.

The heating unit 300 has a heat generating portion 310, and of the heating chamber 200 and the liquid discharge chamber 100, at least the heating chamber 200 has the heat generating portion 310 therein for heating the liquid in the heating chamber 200. That is, the heat generating portion 310 heats at least the liquid in the heating chamber 200, but in some embodiments, the heat generating portion 310 may extend into the liquid drainage chamber 100, and when the liquid in the heating chamber 200 is heated, the liquid in the liquid drainage chamber 100 is also heated.

The heating chamber 200 and the liquid discharge chamber 100 are spaced apart from each other with a first passage 211 provided therebetween. The liquid heated in the heating cavity 200 needs to enter the liquid drainage cavity 100 through the first passage 211, and when a part of the liquid flows to the liquid drainage cavity 100 through the first passage 211, other liquid moves in the heating cavity 200, so that the uniform mixing of all the liquid in the heating cavity 200 is enhanced, and all the liquid has more consistent initial temperature. The first channel 211 is located above the heat generating portion 310 or arranged around the heat generating portion 310, so that the liquid entering the liquid discharge chamber 100 from the heating chamber 200 is mainly the liquid located around the heat generating portion 310, which can ensure that the liquid entering the liquid discharge chamber 100 can be heated more sufficiently, the temperature of the liquid flowing into the liquid discharge chamber 100 can be more consistent, and the liquid is further uniformly mixed in the liquid discharge chamber 100 after entering the liquid discharge chamber 100, thereby improving the uniformity of the liquid in the liquid discharge chamber 100, and the heated liquid finally flows out from the liquid outlet 101.

Specifically, as shown in fig. 1 to 3, in some embodiments, the first channels 211 are disposed around the heat generating portion 310, and since the portion of the liquid contacting with the heat generating portion 310 is heated first, and the density of the heated liquid becomes lower, and the heated liquid flows upward easily, so that as shown by the arrow at the first channel 211 in fig. 1, most of the heated liquid flows into the liquid discharging chamber 100 from the corresponding first channel 211, the heated liquid is ensured to flow into the liquid discharging chamber 100 as much as possible, the heating efficiency is improved, and the hot liquid is prevented from flowing to the periphery of the chamber and being finally emitted to the outside of the device, so that the heat loss is reduced, and the heating efficiency is improved. And the liquid in the heating cavity 200 has more uniform initial temperature after being uniformly mixed, so that when the liquid is heated and flows into the liquid discharge cavity 100 from the first channel 211, the temperature difference of the liquid is not large, that is, the temperature of the liquid entering the liquid discharge cavity 100 is more uniform, which is beneficial to improving the uniformity of the temperature in the liquid discharge cavity 100.

In addition to the first channel 211 surrounding the heat generating portion 310, the first channel 211 may be located above the heat generating portion 310, and the heat generating portion 310 is located below the first channel 211, so that the liquid heated by the heat generating portion 310 will flow upward after the density of the liquid is reduced due to heating, and then flow into the liquid discharge chamber 100 from the first channel 211.

Of course, in order to increase the heating efficiency, the contact area between the heat generating portion 310 and the liquid may be increased, for example, referring to fig. 1 to 3, in some embodiments, the heat generating portion 310 extends from the heating cavity 200 into the liquid draining cavity 100 for heating the liquid in the liquid draining cavity 100. After the liquid in the liquid discharge cavity 100 is heated, the liquid is uniformly mixed in the liquid discharge cavity 100, so that the liquid heating speed can be increased, and the heating efficiency is improved.

The first channel 211 may be various structures capable of allowing the liquid to flow, such as slits, holes, etc., having various shapes. In some embodiments, the maximum width a1 of the first channel 211 has a value range as follows: 0.5 mm. ltoreq. a 1. ltoreq.6 mm, and may be, for example, 0.8mm, 1mm, 2mm, 3mm, 4mm, 5mm, or the like; or, the ratio b1 of the maximum width of the first channel 211 to the maximum width of the heating chamber 200 in which the first channel 211 is located has a value range: 1/15. ltoreq. b 1. ltoreq. 1/3, and may be 1/10, 1/8, 1/5, or the like. The maximum width of the heating chamber 200 where the first channel 211 is located refers to the maximum width of the side of the heating chamber 200 where the first channel 211 is located. The size design can ensure that the liquid flowing into the liquid discharge cavity 100 from the heating cavity 200 forms a fountain-like spraying effect, the liquid flowing effect in the liquid discharge cavity 100 is enhanced, and the uniform mixing of the liquid at all parts is facilitated.

Further, in order to guide the heated liquid around the heat generating portion 310 into the liquid discharge cavity 100 as much as possible, in some embodiments, preferably, the distance c1 between the outermost side of the first channel 211 and the heat generating portion 310 is in the range of: c1 is more than or equal to 0.5mm and less than or equal to 23 mm; or the ratio d1 between the distance between the outermost side of the first channel 211 and the heat generating portion 310 and the maximum width of the heating chamber 200 where the first channel 211 is located has the following value: d1 is not more than 1/3. The distance c1 between the outermost side of the first channel 211 and the heat generating portion 310 is the farthest distance between the channel wall of the first channel 211 and the heat generating portion 310.

Further, referring to fig. 1 to 3, in an embodiment, the heating cavity 200 and the liquid discharging cavity 100 are separated by a first partition 212, and the first passage 211 is disposed on the first partition 212. The first partition 212 forms a barrier for the liquid in the heating chamber 200, and the liquid hits the first partition 212 during flowing, and flows in different directions after being rebounded, as shown by the arrow below the first partition 212 in fig. 1, so as to form a flow-around effect, thereby enhancing the liquid fluidity in the heating chamber 200 and improving the uniformity of each part of the liquid.

Further, referring to fig. 1, 2 and 4, in an embodiment, the first partition 212 has a first through hole 213, and the first through hole 213 may be circular or have other shapes. The heat generating portion 310 extends into or through the first through hole 213 from the heating chamber 200, and the first channel 211 is a gap between the hole wall of the first through hole 213 and the heat generating portion 310. The first through hole 213 shown in this embodiment is directly communicated with the heat generating portion 310, so that the liquid can flow to the liquid discharging chamber 100 by adhering to the outer wall of the heat generating portion 310, and the heating effect is better. In this embodiment, the first channel 211 is an annular gap, and in other embodiments, the gap may be discontinuous or discontinuous.

Referring to fig. 3 and 5, in another embodiment, the first channel 211 includes a plurality of holes disposed around the heat generating portion 310. These holes are provided around the heat generating portion 310, so that the liquid around the heat generating portion 310 flows into the liquid discharge chamber 100 through the holes.

With continued reference to fig. 3 and 5, in one embodiment, the first partition 212 has a first through hole 213, and the first through hole 213 may be circular or have other shapes. The heat generating portion 310 extends from the heating chamber 200 into or through the first through hole 213, and the holes are disposed around the first through hole 213, for example, the holes are rotationally symmetrical or centrally symmetrical around the center of the first through hole 213. The heat generating portion 310 and the first through hole 213 may be hermetically connected, but a gap as shown in fig. 1 and 2 may be formed, so that the liquid is supplied to the liquid discharge chamber 100 through the gap and the hole.

On the other hand, the heating chamber 200 may be only one chamber, and the liquid enters the chamber, is heated by the heat generating portion 310, and then flows into the liquid discharging chamber 100 through the first channel 211. Preferably, however, in some embodiments, the heating chamber 200 comprises at least two sub-heating chambers. The sub-heating cavities are sequentially butted, and the sub-heating cavity positioned at the outermost end of one side is communicated with the liquid discharge cavity 100. The first passage 211 is disposed between the sub-heating cavities located at the outermost end of one side and the liquid discharge cavity 100 (for example, on the first partition plate described above), and adjacent sub-heating cavities are communicated with each other through the second passage, and at least one sub-heating cavity is provided with a liquid inlet 201. The sub-heating cavities are connected in sequence, and each sub-heating cavity can uniformly mix liquid, so that the uniformity of the liquid temperature is improved. The heating portion 310 is located in at least one sub-heating cavity and is used for heating the liquid in the corresponding sub-heating cavity. In one embodiment, each sub-heating chamber has a heat generating portion 310, so as to increase the contact area between the liquid and the heat generating portion 310 and improve the heating efficiency.

Generally, the sub-heating chambers may be disposed in a vertical direction from bottom to top. However, in some specific embodiments, the sub-heating cavities may be arranged in a transverse, oblique or other direction.

Referring to fig. 1 to 3, as a more specific embodiment, the heating cavity 200 includes a first heating cavity 210 and a second heating cavity 220, a first channel 211 is disposed between the first heating cavity 210 and the liquid discharging cavity 100, the first heating cavity 210 and the second heating cavity 220 are separated, and a second channel 221 is disposed therebetween, the first heating cavity 210 and the second heating cavity 220 are communicated via the second channel 221, a liquid inlet 201 is communicated with the second heating cavity 220, and a heat generating portion 310 is disposed in at least the second heating cavity 220 of the first heating cavity 210 and the second heating cavity 220.

Of course, in order to increase the contact area between the liquid and the heat generating portion 310, the heat generating portion 310 may be extended from the second heating cavity 220 into the first heating cavity 210, and both the liquid in the first heating cavity 210 and the liquid in the second heating cavity 220 may be heated by the heat generating portion 310. Further, the heat generating portion 310 may also extend from the second heating cavity 220 into and through the first heating cavity 210 and into the liquid drainage cavity 100, so that the heat generating portion 310 may also heat the liquid in the liquid drainage cavity 100.

The liquid heated in the second heating chamber 220 needs to enter the first heating chamber 210 through the second passage 221, and when a part of the liquid flows to the first heating chamber 210 through the second passage 221, other liquid moves in the second heating chamber 220, so that the uniform mixing of all the liquid in the second heating chamber 220 is enhanced, and all the liquid has more consistent initial temperature. Similar to the first passage 211, in some embodiments, the second passage 221 is located above the heat generating portion 310 or around the heat generating portion 310, so that the liquid entering the first heating chamber 210 from the second heating chamber 220 is mainly the liquid located around the heat generating portion 310, which can ensure that the liquid entering the first heating chamber 210 can be heated more sufficiently, and the temperature of the liquid flowing into the first heating chamber 210 can be more consistent, and the liquid entering the first heating chamber 210 is further mixed in the first heating chamber 210, so as to improve the uniformity of the liquid in the first heating chamber 210, and the heated liquid finally flows into the liquid discharging chamber 100 through the first passage 211.

Specifically, as shown in fig. 1, in some embodiments, the second channel 221 is disposed around the heat generating portion 310, and since the portion of the liquid contacting with the heat generating portion 310 is heated first, and the density of the heated liquid becomes lower, and the heated liquid flows upward easily, so that as shown by the arrow at the second channel 221 in fig. 1, most of the heated liquid flows into the first heating cavity 210 from the corresponding second channel 221, the heated liquid is ensured to flow into the first heating cavity 210 as much as possible, the heating efficiency is improved, the heat carried to the outer wall of the apparatus by the liquid is reduced, the heat is prevented from being emitted to the outside of the apparatus, and the heating efficiency is improved. The liquid in the second heating cavity 220 has a more uniform initial temperature after being mixed, so that the temperature difference of the liquid is not large when the liquid is heated and flows into the first heating cavity 210 from the second channel 221, that is, the temperature of the liquid entering the first heating cavity 210 is more uniform.

In addition to the second channel 221 surrounding the heat generating portion 310, the second channel 221 may be located above the heat generating portion 310, for example, the heat generating portion 310 is only located in the second heating cavity 220, the heat generating portion 310 is located below the second channel 221, and the liquid heated by the heat generating portion 310 will flow upward after the density is reduced due to heat, so as to flow into the first heating cavity 210 from the second channel 221.

The second channel 221 may be various structures capable of allowing the liquid to flow, such as slits, holes, etc., having various shapes. In some embodiments, the maximum width a2 of the second channel 221 has a value range as follows: 0.5 mm. ltoreq. a 2. ltoreq.6 mm, and may be, for example, 0.8mm, 1mm, 2mm, 3mm, 4mm, 5mm, or the like; or, the ratio b2 between the maximum width of the second channel 221 and the maximum width of the sub-heating cavity (e.g., the second heating cavity 220) in which the second channel 221 is located has a value range: 1/15. ltoreq. b 2. ltoreq. 1/3, and may be 1/10, 1/8, 1/5, or the like. The maximum width of the sub-heating cavity in which the second channel 221 is located refers to the maximum width of the side of the sub-heating cavity (e.g., the second heating cavity 220) that is in butt joint with the entrance of the second channel 221, where the second channel 221 is located. The size design can enable the liquid flowing into the first heating cavity 210 from the second heating cavity 220 to form a fountain-like spraying effect, enhance the liquid flowing effect in the first heating cavity 210 and facilitate the uniform mixing of the liquid in all parts.

Further, in order to guide the heated liquid around the heat generating portion 310 into the first heating cavity 210 as much as possible, in some embodiments, preferably, the distance c2 between the outermost side of the second channel 221 and the heat generating portion 310 is in the range of: c2 is more than or equal to 0.5mm and less than or equal to 23 mm; or the ratio d2 between the distance between the outermost side of the second channel 221 and the heat generating portion 310 and the maximum width of the sub-heating cavity (e.g., the second heating cavity 220) in which the second channel 221 is located has the following value: d2 is not more than 1/3. The distance c2 between the outermost side of the second channel 221 and the heat generating portion 310 is the farthest distance between the channel wall of the second channel 221 and the heat generating portion 310.

Further, referring to fig. 1 to 3, in an embodiment, adjacent sub-heating cavities (e.g., the first heating cavity 210 and the second heating cavity 220) are separated by a second partition 222, and the second channel 221 is disposed on the second partition 222. The second partition 222 blocks the liquid in the second heating cavity 220, and the liquid collides with the second partition 222 during flowing, and flows in different directions after being rebounded, so that a flow-around effect is formed, the liquidity of the liquid in the second heating cavity 220 can be enhanced, and the uniformity of each part of the liquid can be improved.

Further, referring to fig. 1, 2 and 4, in an embodiment, the second partition 222 has a second through hole 223, and the second through hole 223 may be circular or have other shapes. In one embodiment, the structure may be similar to the first via 213 shown in FIG. 4. The heat generating portion 310 extends into or through the second through hole 223 from the second heating cavity 220, and the second channel 221 is a gap between the hole wall of the second through hole 223 and the heat generating portion 310. The second through hole 223 shown in this embodiment is directly communicated with the heat generating portion 310, and the liquid can flow to the first heating cavity 210 by adhering to the outer wall of the heat generating portion 310, so that the heating effect is better. In this embodiment, the second channel 221 is an annular gap, and in other embodiments, the gap may be discontinuous or discontinuous.

Referring to fig. 3, in another embodiment, the second channel 221 includes a plurality of holes disposed around the heat generating portion 310. The holes are disposed around the heat generating portion 310 so that the liquid around the heat generating portion 310 can flow into the first heating chamber 210 through the holes.

With continued reference to fig. 3 and 5, in one embodiment, the second partition 222 has a second through hole 223, and in one embodiment, the structure is similar to the first through hole 213 shown in fig. 5, the heat generating portion 310 extends into or through the second through hole 223 from the second heating cavity 220, the holes are disposed around the second through hole 223, for example, the holes are rotationally symmetrical or centrosymmetrically around the center of the second through hole 223, and the second through hole 223 may be circular or other shapes. The heat generating portion 310 and the second through hole 223 can be connected in a sealing manner, but a gap as shown in fig. 1 and 2 can also be formed, so that the liquid can be input into the first heating cavity 210 through the gap and the hole.

Further, referring to fig. 1 to 3, in one embodiment, the length of the first heating cavity 210 in the vertical direction is longer than the length of the second heating cavity 220 in the vertical direction. The first heating cavity 210 has a larger length, and the heat generating part 310 penetrates through the first heating cavity 210, so as to increase the contact area between the heat generating part 310 and the liquid in the first heating cavity 210, and the first heating cavity 210 can be used as a main heating area.

The heating chamber 200 (including the sub-heating chambers) and the liquid discharge chamber 100 may be formed by different containers or may be divided by the same container. For example, with continued reference to fig. 1 to 3, an embodiment includes a heating container, the cavity of the heating container is divided into three cavities from bottom to top, and the cavities are a second heating cavity 220, a first heating cavity 210 and a liquid discharging cavity 100 from bottom to top.

The heat generating unit may be of various structures capable of heating liquid, for example, referring to fig. 1 to 3, in an embodiment, the heat generating portion 310 is a strip structure, for example, a heating rod, and the heat generating portion 310 is vertically disposed in the heating cavity 200 and the liquid discharging cavity 100, such as in the liquid discharging cavity 100, the first heating cavity 210 and the second heating cavity 220.

In the present apparatus, the arrangement of the liquid inlet 201 and the liquid outlet 101 can be selected according to the requirement, for example, referring to fig. 1 to 8, the liquid inlet 201 can be located on the bottom wall and/or the side wall of the heating cavity 200 (including any sub-heating cavity). And liquid outlet 101 is located in the top wall and/or side wall of liquid discharge chamber 100. Specifically, as shown in fig. 1 to 3, the liquid outlet 101 is disposed on the top wall of the liquid discharging cavity 100, and the liquid inlet 201 is disposed on the side wall of the second heating cavity 220. As shown in fig. 6, the liquid outlet 101 is disposed on the top wall of the liquid discharging cavity 100, and the liquid inlet 201 is disposed on the bottom wall of the second heating cavity 220. As shown in fig. 7, the liquid outlet 101 is disposed on a side wall of the liquid discharging chamber 100, and the liquid inlet 201 is disposed on a side wall of the second heating chamber 220. As shown in fig. 8, the liquid outlet 101 is disposed on the top wall of the liquid discharging chamber 100, and the liquid inlet 201 is disposed on the side wall of the second heating chamber 220.

Further, referring to fig. 1 to 3, in an embodiment, the liquid discharge device further includes a temperature detection unit 400, and the temperature detection unit 400 is communicated with the liquid discharge chamber 100 and is used for detecting the temperature of the liquid in the liquid discharge chamber 100, so as to control the heating condition of the heating device according to the detected temperature and keep the temperature at a required degree. The temperature detection unit 400 may be disposed at various positions of the liquid discharge chamber 100. The temperature detection unit 400 may be a temperature sensor. In other embodiments, the heating device may not be provided with the temperature detection unit 400, but the temperature detection unit 400 is provided on a pipeline where the liquid outlet 101 of the heating device is butted, and the heating device is controlled by detecting the temperature of the liquid in the pipeline.

Further, referring to fig. 1 to 3, in an embodiment, a temperature protection switch 500 is further included, and the temperature protection switch 500 plays a role of protection to prevent the liquid from being heated to an excessive temperature.

On the other hand, referring to fig. 1 to 3, in one embodiment, a liquid heating apparatus of a sample analysis device is provided, which includes a heating chamber 200, a liquid discharge chamber 100 and a heating unit 300. The heating chamber 200 comprises a first heating chamber 210 and a second heating chamber 220, the first heating chamber 210 and the second heating chamber 220 are separated by a second partition 222, the second partition 222 has a second through hole 223, and the second heating chamber 220 is communicated with the liquid inlet 201 for the liquid to enter into the second heating chamber 220. The liquid discharge cavity 100 is provided with a liquid outlet 101 for outputting heated liquid; the first heating chamber 210 and the liquid discharge chamber 100 are partitioned by a first partition 212, and the first partition 212 has a first through hole 213. The heating unit 300 has a heat generating portion 310, the heat generating portion 310 extends from the second heating cavity 220 into the first heating cavity 210 through the second through hole 223, and extends from the second heating cavity 220 into the liquid discharge cavity 100 through the first through hole 213; a gap is formed between the hole wall of the second through hole 223 and the heat generating portion 310, so that the liquid in the second heating chamber 220 flows into the first heating chamber 210 through the gap between the second through hole 223 and the heat generating portion 310 along the heat generating portion 310, and a gap is formed between the hole wall of the first through hole 213 and the heat generating portion 310, so that the liquid in the first heating chamber 210 flows into the liquid drainage chamber 100 through the gap between the first through hole 213 and the heat generating portion 310 along the heat generating portion 310.

The present invention has been described in terms of specific examples, which are provided to aid understanding of the invention and are not intended to be limiting. For a person skilled in the art to which the invention pertains, several simple deductions, modifications or substitutions may be made according to the idea of the invention.

Claims (25)

1. A liquid heating apparatus for a sample analyzing apparatus, comprising:

the heating cavity is provided with a liquid inlet, and liquid enters the heating cavity;

the liquid discharging cavity is provided with a liquid outlet and is used for outputting heated liquid;

and a heating unit having a heat generating portion, of the heating chamber and the liquid discharge chamber, at least the heat generating portion being provided in the heating chamber, for heating the liquid in the heating chamber; the heating cavity and the liquid discharging cavity are separated, a first channel is arranged between the heating cavity and the liquid discharging cavity, the heating cavity and the liquid discharging cavity are communicated through the first channel, and the first channel is located above the heating portion or arranged around the heating portion.

2. A liquid heating apparatus as claimed in claim 1, wherein said heat generating portion extends from the heating chamber into the liquid discharge chamber for heating liquid in said liquid discharge chamber.

3. A liquid heating apparatus as claimed in claim 1, wherein the maximum width a1 of the first channel is in the range: a1 is more than or equal to 0.5mm and less than or equal to 6 mm; or the value range of the ratio b1 of the maximum width of the first channel to the maximum width of the heating cavity where the first channel is located is as follows: 1/15 is not less than b1 is not less than 1/3.

4. The liquid heating apparatus as claimed in claim 1, wherein a distance c1 between an outermost side of the first passage and the heat generating portion is in a range of: c1 is more than or equal to 0.5mm and less than or equal to 23 mm; or the value range of the ratio d1 between the distance between the outermost side of the first channel and the heating part and the maximum width of the heating cavity where the first channel is located is as follows: d1 is not more than 1/3.

5. A liquid heating apparatus as claimed in claim 1, wherein said heating chamber and said drainage chamber are separated by a first partition, said first passage being provided in said first partition.

6. A liquid heating apparatus as claimed in claim 5, wherein said first partition has a first through hole, said heat generating portion extends from said heating chamber into or through said first through hole, and said first passage is a gap between a wall of said first through hole and said heat generating portion.

7. The liquid heating apparatus according to claim 5, wherein said first channel comprises a plurality of holes disposed around said heat generating portion.

8. A liquid heating apparatus as claimed in claim 7, wherein said first partition has a first through-hole, said heat-generating portion extends from said heating chamber into or through said first through-hole, and said aperture is provided around said first through-hole.

9. The liquid heating apparatus as claimed in claim 1, wherein the heating chambers comprise at least two sub-heating chambers, the sub-heating chambers are connected in an abutting manner, the sub-heating chamber located at the outermost end of one side is communicated with the liquid discharging chamber, the first passage is disposed between the sub-heating chamber located at the outermost end of one side and the liquid discharging chamber, adjacent sub-heating chambers are communicated with each other through the second passage, at least one of the sub-heating chambers has a liquid inlet, and the heat generating portion is located in at least one of the sub-heating chambers and is used for heating the liquid in the corresponding sub-heating chamber.

10. A liquid heating apparatus as claimed in claim 9, wherein said heating chambers include a first heating chamber and a second heating chamber, said first passageway is provided between the first heating chamber and the drain chamber, said first heating chamber and said second heating chamber are spaced apart and a second passageway is provided therebetween, said first heating chamber and said second heating chamber are in communication via said second passageway, said liquid inlet is in communication with said second heating chamber, and said heat generating portion is provided in at least said second of said first heating chamber and said second heating chamber.

11. A liquid heating apparatus as claimed in claim 10, wherein said heat generating portion extends from said second heating chamber into said first heating chamber.

12. A liquid heating apparatus as claimed in claim 10, wherein said heat generating portion extends from said second heating chamber into and through said first heating chamber and into said drain chamber.

13. A liquid heating apparatus as claimed in claim 9, wherein the maximum width a2 of the second channel is in the range: a2 is more than or equal to 0.5mm and less than or equal to 6 mm; or the ratio b2 of the maximum width of the second channel to the maximum width of the second heating cavity has the following value range: 1/15 is not less than b2 is not less than 1/3.

14. A liquid heating apparatus as claimed in claim 9, wherein the distance c2 between the outermost side of said second channel and said heat generating portion is in the range: c2 is more than or equal to 0.5mm and less than or equal to 23 mm; or the value range of the ratio d2 between the distance between the outermost side of the second channel and the heating part and the maximum width of the second heating cavity is as follows: d2 is not more than 1/3.

15. A liquid heating apparatus as claimed in claim 9, wherein said second passage is located above or around said heat generating portion.

16. A liquid heating apparatus as claimed in claim 10, wherein adjacent sub-heating chambers are separated by a second partition, and said second passage is provided in said second partition.

17. A liquid heating apparatus as claimed in claim 16, wherein said second partition has a second through hole, said heat generating portion extends from said second heating cavity into or through said second through hole, and said second passage is a gap between a wall of said second through hole and said heat generating portion.

18. The liquid heating apparatus as claimed in claim 16, wherein said second channel comprises a plurality of holes disposed around said heat generating portion.

19. A liquid heating apparatus as claimed in claim 18, wherein said second partition has a second through-hole, said heat generating portion extends from said second heating cavity into or through said second through-hole, and said aperture is provided around said second through-hole.

20. A liquid heating apparatus as claimed in claim 10 wherein the length of said first heating chamber in the vertical direction is longer than the length of said second heating chamber in the vertical direction.

21. The liquid heating apparatus as claimed in claim 10, comprising a heating container, wherein the cavity of the heating container is divided into three cavities from bottom to top, and the three cavities are a second heating cavity, a first heating cavity and a liquid discharging cavity from bottom to top.

22. A liquid heating apparatus as claimed in claim 1, wherein said liquid inlet is located in a bottom wall and/or a side wall of said heating chamber; the liquid outlet is positioned on the top wall and/or the side wall of the liquid discharge cavity.

23. The liquid heating apparatus according to claim 1, further comprising a temperature detection unit in communication with the liquid discharge chamber for detecting a temperature of the liquid in the liquid discharge chamber.

24. A liquid heating apparatus as claimed in claim 1, wherein said heat generating portion is a strip structure vertically disposed in said heating chamber and said drain chamber.

25. A liquid heating apparatus for a sample analyzing apparatus, comprising:

the heating cavity comprises a first heating cavity and a second heating cavity, the first heating cavity and the second heating cavity are separated by a second partition plate, the second partition plate is provided with a second through hole, and the second heating cavity is communicated with the liquid inlet and is used for allowing liquid to enter the second heating cavity;

the liquid discharging cavity is provided with a liquid outlet and is used for outputting heated liquid; the first heating cavity and the liquid discharge cavity are separated by a first partition plate, and the first partition plate is provided with a first through hole;

the heating unit is provided with a heating part, and the heating part extends into the first heating cavity from the second heating cavity through the second through hole and extends into the liquid discharge cavity from the second heating cavity through the first through hole; and a gap is formed between the hole wall of the second through hole and the heating part, so that liquid in the second heating cavity flows into the first heating cavity along the heating part through the gap between the second through hole and the heating part, and a gap is formed between the hole wall of the first through hole and the heating part, so that the liquid in the first heating cavity flows into the liquid discharge cavity along the heating part through the gap between the first through hole and the heating part.

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