CN217584857U - Liquid heater - Google Patents

Abstract

The application relates to a liquid heater, which is characterized in that a liquid tank is provided with a liquid inlet cavity, a liquid outlet cavity and a liquid flow cavity, and the liquid inlet cavity is provided with a liquid inlet pipe orifice; a liquid outlet pipe orifice is arranged on the liquid outlet cavity; flow the cavity interval and set up a plurality ofly, the inlet end and the feed liquor cavity intercommunication in flow the cavity, the play liquid end and the play liquid cavity intercommunication in flow the cavity, set up the core that generates heat between two adjacent flow liquid cavities, and the relative both sides wall that generates heat the core laminates with adjacent flow liquid cavity surface respectively, so make the both sides of the core that generates heat all contact with the liquid tank, the area of contact of the core that generates heat and liquid tank is fully increased, make the core that generates heat conduct the liquid for the liquid tank with the heat more high-efficiently, have the heat utilization efficiency and the heat exchange efficiency of improvement, improve volume power ratio and mass power ratio, reduce heat loss's effect.

Description

Liquid heater

Technical Field

The application relates to the technical field of heaters, in particular to a liquid heater.

Background

With the promotion of the double carbon policy of China, the energy storage system is developed vigorously; the lithium battery used in the energy storage system needs to be subjected to heat management, needs to be heated at a low temperature and needs to be cooled at a high temperature, so that a heat management unit using water cooling and water heating needs to be configured in the system.

The heat management units in the current market mostly adopt pipeline type PTC heaters, the heaters use round aluminum pipes or stainless steel pipes as water channels, PTC heating elements are wrapped outside the heaters, the PTC heaters are low in heat efficiency, and due to heat exchange at one side of the PTC heaters, the outside of the heaters faces to an open environment, the heat utilization rate is about 80%, and a large amount of heat waste is caused; the PTC heater is low in volume power ratio and mass power ratio, PTC power density is low due to PTC single-side heat exchange, and the heater is large in volume and weight under the same power requirement, so that waste of resources and volume is caused; in addition, the heater in the prior art has poor sealing performance, so that a large amount of heat is lost.

SUMMERY OF THE UTILITY MODEL

An object of this application is to provide a liquid heater, it can improve heat exchange efficiency, improves volume power ratio and quality power ratio.

To this end, in a first aspect, an embodiment of the present application provides a liquid heater, including a liquid tank, the liquid tank including: a liquid inlet cavity, on which a liquid inlet pipe orifice is arranged; a liquid outlet cavity, which is provided with a liquid outlet pipe orifice; and a plurality of flow liquid cavities are arranged at intervals, the liquid inlet end of each flow liquid cavity is communicated with the liquid inlet cavity, the liquid outlet end of each flow liquid cavity is communicated with the liquid outlet cavity, a heating core body is arranged between every two adjacent flow liquid cavities, and the two opposite side walls of each heating core body are respectively attached to the surfaces of the adjacent flow liquid cavities.

In a possible implementation manner, one side of the liquid inlet cavity, which is far away from the liquid flowing cavity, is an arc-shaped wall surface, and the arc-shaped wall surface is gradually close to the central axis of the liquid outlet pipe in the liquid inlet direction of the liquid inlet pipe.

In a possible implementation mode, the liquid inlet pipe is communicated with the liquid inlet pipe mouth, the liquid outlet pipe is communicated with the liquid outlet pipe mouth, the liquid heater further comprises an insulation box, and the insulation box comprises: the bottom shell is used for accommodating the liquid tank, and is provided with two installation parts which are respectively matched with the liquid inlet pipe and the liquid outlet pipe; and the top shell is detachably connected with the bottom shell.

In a possible implementation mode, the bottom shell is further provided with an insertion piece, and the liquid inlet pipe and the liquid outlet pipe are respectively limited on the bottom shell through the matching of the insertion piece and the installation part.

In a possible implementation mode, the insertion piece comprises a sealing groove, and sealing glue is arranged in the sealing groove to seal the connection position between the bottom shell, the liquid tank and the insertion piece.

In a possible implementation mode, be provided with on the drain pan and hold the platform, wear to be equipped with the pencil socket in holding the platform, the core that generates heat is connected with pencil socket electricity, and the one side that holds the platform and deviates from the liquid tank is provided with sealed plug.

In a possible implementation manner, a first temperature control switch is arranged on the liquid tank, and the first temperature control switch is connected with the heating core body in series to control the on-off of the circuit of the heating core body.

In a possible implementation manner, the liquid tank is further provided with a second temperature control switch, and the second temperature control switch is connected in series with the power supply device of the heating core body to control the on/off of the circuit of the power supply device.

In a possible implementation mode, the heat preservation box further comprises a connecting sheet, and the connecting sheet is used for connecting the liquid box and the heat preservation box.

In a second aspect, an embodiment of the present application provides an energy storage system, including a lithium battery; the liquid heater is used for carrying out thermal management on the lithium battery.

According to the liquid heater provided by the embodiment of the application, the liquid tank is provided with the liquid inlet cavity, the liquid outlet cavity and the liquid flow cavity, and the liquid inlet cavity is provided with the liquid inlet pipe orifice; a liquid outlet pipe orifice is arranged on the liquid outlet cavity; the liquid cavity interval sets up a plurality ofly, the feed liquor end and the feed liquor chamber intercommunication in flow liquid cavity, the play liquid end and the play liquid cavity intercommunication in flow liquid cavity, set up the core that generates heat between two adjacent liquid cavities, and the relative both sides wall of the core that generates heat is laminated with adjacent flow liquid cavity surface respectively, so make the both sides of the core that generates heat all contact with the liquid tank, the area of contact of the core that generates heat and liquid tank is fully increased, make the core that generates heat conduct the liquid of liquid tank with the heat more high-efficient, the utility model has the efficiency of improving heat utilization and heat exchange, improve volume power ratio and mass power ratio, reduce heat loss's effect.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts. In addition, in the drawings, like parts are denoted by like reference numerals, and the drawings are not drawn to actual scale.

Fig. 1 is a schematic perspective view illustrating a liquid heater according to an embodiment of the present disclosure;

FIG. 2 is a schematic diagram illustrating a top view of a liquid heater according to an embodiment of the present disclosure;

fig. 3 is a schematic diagram illustrating an explosion structure of a liquid heater provided in an embodiment of the present application;

FIG. 4 is a schematic perspective view illustrating a liquid tank of a liquid heater according to an embodiment of the present disclosure;

fig. 5 shows a schematic top view structure diagram of a liquid tank in a liquid heater provided by an embodiment of the application.

Description of reference numerals:

1. a liquid tank; 11. a liquid inlet cavity; 111. a liquid inlet pipe orifice; 12. a liquid outlet cavity; 121. a liquid outlet pipe opening; 13. a fluid chamber; 14. an arc-shaped wall surface; 15. a liquid inlet pipe; 16. a liquid outlet pipe; 17. a harness receptacle;

2. a heating core; 3. a heat preservation box; 31. a bottom case; 311. an installation part; 32. a top shell; 312. inserting sheets; 312a, a seal groove; 313. an accommodating table;

4. sealing the rubber plug; 5. a first temperature control switch; 6. a second temperature control switch; 7. and (7) connecting the sheets.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

As shown in fig. 1 to 5, an embodiment of the present application provides a liquid heater, including a liquid tank 1, where the liquid tank 1 includes: a liquid inlet cavity 11, on which a liquid inlet pipe orifice 111 is arranged; a liquid outlet cavity 12, on which a liquid outlet pipe opening 121 is opened; and a plurality of liquid flow cavities 13 are arranged at intervals, the liquid inlet end of each liquid flow cavity 13 is communicated with the liquid inlet cavity 11, the liquid outlet end of each liquid flow cavity 13 is communicated with the liquid outlet cavity 12, liquid flows in from the liquid inlet pipe orifice 111 and flows out from the liquid outlet pipe orifice 121 after flowing through the liquid flow cavity 13, a heating core body 2 is arranged between every two adjacent liquid flow cavities 13, the two opposite side walls of the heating core body 2 are respectively attached to the surfaces of the adjacent liquid flow cavities 13, and the heating core body 2 conducts heat to the liquid in the liquid flow cavities 13 and the liquid flow cavities 13 attached to the heating core body.

According to the liquid heater provided by the embodiment of the application, the liquid tank 1 is provided with the liquid inlet cavity 11, the liquid outlet cavity 12 and the liquid flow cavity 13, and the liquid inlet cavity 11 is provided with the liquid inlet pipe orifice 111; the liquid outlet cavity 12 is provided with a liquid outlet pipe opening 121; flow cavity 13 interval sets up a plurality ofly, the inlet end and the feed liquor chamber 11 intercommunication of flow cavity 13, the play liquid end and play liquid cavity 12 intercommunication of flow cavity 13, set up the core 2 that generates heat between two adjacent flow cavities 13, and the relative both sides wall that generates heat core 2 laminates with adjacent flow cavity 13 surface respectively, so make the both sides that generate heat core 2 all contact with liquid tank 1, the area of contact of core 2 and liquid tank 1 is generated heat in the abundant increase, make the core 2 that generates heat conduct the liquid in the liquid tank 1 with the heat more high-efficiently, it rates and heat exchange efficiency to have the improvement, volume power ratio and mass power ratio are improved, reduce heat loss's effect.

In some examples, the projection of the liquid flowing cavity along the main view direction of the liquid tank completely covers the projection of the heating core, so that the heat loss of the heating core is avoided, and the heat utilization rate is improved.

In some examples, the heating core 2 is a rectangular three-dimensional structure, the rectangular containing cavity is arranged between two adjacent liquid flowing cavities 13, the heating core 2 is embedded in the rectangular containing cavity, the rectangular containing cavity is corresponding to the external dimension of the heating core 2, so that the rectangular containing cavity better contains the heating core 2, the heating core 2 is more tightly attached to the containing cavity, namely, the heating core 2 is more tightly attached to the surface of the liquid flowing cavities 13, and therefore the effect of improving the heat exchange efficiency is achieved, in addition, the rectangular containing cavity is tightly arranged to improve the space utilization rate, and the volume power ratio and the quality power ratio are improved.

In some examples, the heat generating core 2 is not limited to a rectangular solid structure, for example, the heat generating core 2 is a cylindrical structure, and accordingly, the liquid flowing chambers 13 have cylindrical receiving chambers therebetween, and the plurality of cylindrical receiving chambers are closely arranged.

In some embodiments, as shown in fig. 5, one side of the liquid inlet cavity 11 facing away from the liquid outlet cavity 13 is an arc-shaped wall surface 14, the arc-shaped wall surface 14 is gradually close to the central axis of the liquid outlet pipe orifice 121 in the liquid inlet direction of the liquid inlet pipe orifice 111, the arrow direction in the figure is the liquid flowing direction in the liquid tank 1, and by arranging the arc-shaped wall surface 14, the liquid is uniformly guided to flow into each liquid outlet cavity 13, so that the liquid flowing uniformity is improved, the heat exchange efficiency is improved, and uneven heat transfer caused by strong local liquid fluidity is avoided.

In some examples, the side of the liquid outlet cavity 12 facing away from the liquid outlet cavity 13 is an arc-shaped wall surface 14, so that the liquid flows uniformly, the heat transfer is uniform, and the heat exchange efficiency is stable.

In some embodiments, the liquid inlet pipe orifice 111 is communicated with a liquid inlet pipe 15, the liquid outlet pipe orifice 121 is communicated with a liquid outlet pipe 16, the liquid heater further includes an insulation box 3, and the insulation box 3 includes: the bottom shell 31 is used for accommodating the liquid tank 1, two installation parts 311 are arranged on the bottom shell 31, and the two installation parts 311 are respectively matched with the liquid inlet pipe 15 and the liquid outlet pipe 16; and top shell 32, can dismantle with drain pan 31 and be connected, through setting up liquid tank 1 in insulation can 3, greatly reduced 1 heat loss of liquid tank, improved the heat utilization efficiency of the core 2 that generates heat.

In some embodiments, bottom shell 31 is further provided with an insertion sheet 312, insertion sheet 312 and mounting portion 311 cooperate to form circular holes corresponding to pipe diameters of liquid inlet pipe and liquid outlet pipe, and respectively clamp liquid inlet pipe 15 and liquid outlet pipe 16, and fixing insertion sheet 312 on bottom shell 31 through a fixing member, for example, fixing insertion sheet 312 on bottom shell 31 through a screw, so as to facilitate mounting or dismounting liquid tank 1 and bottom shell 31.

In some embodiments, the insertion piece 312 includes a sealing groove 312a, and a sealant is disposed in the sealing groove 312a to seal the joint between the bottom case 31, the liquid tank 1 and the insertion piece 312, so as to improve the sealing performance of the thermal insulation box 3, further improve the thermal insulation effect of the thermal insulation box 3, prevent heat loss, and improve the heat utilization rate of the heating core 2.

In some embodiments, it holds platform 313 to be provided with on drain pan 31, it wears to be equipped with pencil socket 17 in the platform 313 to hold, the core 2 that generates heat is connected with pencil socket 17 electricity, it is provided with sealed plug 4 to hold one side that platform 313 deviates from liquid case 1, be provided with the through-hole corresponding with the jack on the pencil socket 17 on the sealed plug 4, hold the space between platform 313 and the pencil socket 17 through setting up the shutoff of sealed plug 4, in order to improve insulation can 3's leakproofness, and then improve insulation can 3's heat preservation effect, prevent heat loss, improve the heat utilization efficiency of the core 2 that generates heat.

In some examples, the thermal insulation box 3 has a rectangular parallelepiped structure, and the size of the inner space of the thermal insulation box 3 is adapted to the external size of the liquid tank 1.

In some examples, the incubator 3 is not limited to a rectangular parallelepiped structure, for example, a cylindrical structure.

In some examples, in order to improve the sealing performance of the incubator 3, a sealing gasket is provided at the joint of the bottom shell 31 and the top shell 32 to prevent heat loss.

In some examples, bottom shell 31 is hinged to one side of top shell 32, so that liquid tank 1 can be assembled or disassembled from insulation box 3 more quickly and conveniently.

In some examples, it is preferable that bottom shell 31 and top shell 32 are connected by screws, and a plurality of screws are uniformly distributed at the connection position of bottom shell 31 and top shell 32, so that bottom shell 31 and top shell 32 are connected and fastened, and the sealing performance is improved.

In some examples, the bottom case 31 and the top case 32 are not limited to be connected by screws, for example, by a snap connection, so that the bottom case 31 and the top case 32 can be opened and closed quickly.

In some examples, two marks are provided on the top case 32, the two marks respectively correspond to the positions of the liquid inlet pipe 15 and the liquid outlet pipe 16, and the marks are not specific arrows or characters, and the arrows or characters are used for marking the liquid inlet and outlet directions, so that the operator can conveniently identify the liquid inlet and outlet directions.

In some embodiments, the liquid tank 1 is provided with a first temperature control switch 5, and when there is only one heating core 2, the first temperature control switch 5 is connected in series with the heating core 2 to control the on/off of the circuit of the heating core 2; when a plurality of heating core bodies 2 are provided, the plurality of heating core bodies 2 are connected in parallel, and the first temperature control switch 5 is connected in series with the parallel circuit of the plurality of heating core bodies 2 to control the plurality of heating core bodies 2 to be connected or disconnected simultaneously.

In some embodiments, the liquid tank 1 is further provided with a second temperature-controlled switch 6, the second temperature-controlled switch 6 is connected in series with the power supply device of the heating core 2 to control the on/off of the circuit of the power supply device, the power supply device of the heating core 2 is not shown in the figure, the power supply device is a battery or a generator, and the battery or the generator is well known to those skilled in the art and therefore will not be described in detail.

In some examples, the first temperature controlled switch 5 and the second temperature controlled switch 6 are preferably provided on the liquid tank 1, but are not limited to being provided on the liquid tank 1.

In some examples, when the temperature of the liquid in the liquid tank 1 reaches a predetermined value, the heating core 2 is not required to continue to generate heat, and by arranging two temperature control loops and respectively arranging the first temperature control switch 5 and the second temperature control switch 6 in the two temperature control loops, the heating core 2 can be closed in time when the temperature of the liquid in the liquid tank 1 reaches a set value, so that a dual protection effect is achieved, the heating core 2 cannot be closed when one temperature control switch fails, the heating core 2 is caused to continue to generate heat, and the temperature of the liquid in the liquid tank 1 is abnormal, so that normal use is influenced.

In some embodiments, the thermal insulation box 3 further comprises a connecting piece 7, and the connecting piece 7 is used for connecting the liquid tank 1 and the thermal insulation box 3, so that the liquid tank 1 and the thermal insulation box 3 are stably connected.

An embodiment of the present application provides an energy storage system, including: a lithium battery; and the liquid heater is used for carrying out thermal management on the lithium battery.

According to the liquid heater provided by the embodiment of the application, the liquid tank 1 is provided with the liquid inlet cavity 11, the liquid outlet cavity 12 and the liquid flow cavity 13, and the liquid inlet cavity 11 is provided with the liquid inlet pipe orifice 111; the liquid outlet cavity 12 is provided with a liquid outlet pipe opening 121; a plurality of liquid flowing cavities 13 are arranged at intervals, the liquid inlet end of each liquid flowing cavity 13 is communicated with the liquid inlet cavity 11, the liquid outlet end of each liquid flowing cavity 13 is communicated with the liquid outlet cavity 12, the heating core body 2 is arranged between every two adjacent liquid flowing cavities 13, and the two opposite side walls of each heating core body 2 are respectively attached to the surfaces of the adjacent liquid flowing cavities 13, so that the two sides of each heating core body 2 are in contact with the liquid tank 1, the contact area of the heating core body 2 and the liquid tank 1 is fully increased, the heating core body 2 can more efficiently conduct heat to the liquid in the liquid tank 1, and the heat exchange efficiency and the heat utilization rate are improved, the volume power ratio and the mass power ratio are improved, and the heat loss is reduced; through setting up liquid tank 1 in insulation can 3 to through setting up the leakproofness that improves insulation can 3 such as inserted sheet 312 and sealed plug 4, greatly reduced 1 heat loss of liquid tank, improved the heat utilization efficiency of the core 2 that generates heat.

It should be noted that the liquid heater provided in the embodiment of the present application is not limited to perform thermal management on a lithium battery, and may also be applied to other devices that need to be heated, for example, a plastic packaging device, a wax melting device, a warming device, a massager, and the like, and is not described again.

It should be noted that references in the specification to "one embodiment," "an example embodiment," "some embodiments," etc., indicate that the embodiment described may include a particular feature, structure, or characteristic, but every embodiment may not necessarily include the particular feature, structure, or characteristic. Moreover, such phrases are not necessarily referring to the same embodiment. Further, when a particular feature, structure, or characteristic is described in connection with an embodiment, it is within the knowledge of one skilled in the art to effect such feature, structure, or characteristic in connection with other embodiments whether or not explicitly described.

It should be readily understood that "on 8230" \ 8230on "," on 82303030, and "on 82308230; \ 8230on" \ 8230, and "on 8230;" on 8230, should be interpreted in the broadest sense in this disclosure, such that "on 8230;" on not only means "directly on something", but also includes the meaning of "on something" with intervening features or layers therebetween, and "above 8230or" above 8230 "\8230"; not only includes the meaning of "above something" or "above" but also includes the meaning of "above something" or "above" with no intervening features or layers therebetween (i.e., directly on something).

Furthermore, spatially relative terms, such as "under," "below," "beneath," "above," "over," and the like, may be used herein for ease of description to describe one element or feature's illustrated relationship to another element or feature. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. The device may have other orientations (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly as well.

It is noted that, in this document, relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising a," "8230," "8230," or "comprising" does not exclude the presence of additional like elements in a process, method, article, or apparatus that comprises the element.

Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present application.

Claims (10)

1. A liquid heater comprising a liquid tank, the liquid tank comprising:

a liquid inlet cavity, on which a liquid inlet pipe orifice is arranged;

a liquid outlet cavity, which is provided with a liquid outlet pipe orifice; and

the interval of flowing liquid chamber is provided with a plurality ofly, the feed liquor end in flowing liquid chamber with feed liquor chamber intercommunication, the play liquid end in flowing liquid chamber with go out the liquid chamber intercommunication, adjacent two be provided with the core that generates heat between the flowing liquid chamber, just the relative both sides wall of the core that generates heat respectively with adjacent flow liquid chamber surface laminating.

2. The liquid heater of claim 1, wherein a side of the liquid inlet chamber facing away from the liquid outlet chamber is an arc-shaped wall surface, and the arc-shaped wall surface is gradually close to a central axis of the liquid outlet pipe in a liquid inlet direction of the liquid inlet pipe.

3. The liquid heater of claim 1, wherein the liquid inlet pipe is connected to the liquid inlet pipe opening, the liquid outlet pipe is connected to the liquid outlet pipe opening, the liquid heater further comprises an insulation box, and the insulation box comprises:

the bottom shell is used for accommodating the liquid tank, and two installation parts are arranged on the bottom shell and are respectively matched with the liquid inlet pipe and the liquid outlet pipe; and

the top shell is detachably connected with the bottom shell.

4. The liquid heater of claim 3, wherein the bottom casing is further provided with an insertion sheet, and the liquid inlet pipe and the liquid outlet pipe are respectively limited on the bottom casing through the matching of the insertion sheet and the installation part.

5. The liquid heater of claim 4, wherein the insert comprises a sealed groove having a sealant disposed therein to seal the connection between the base, the liquid tank and the insert.

6. The liquid heater of claim 3, wherein the bottom shell is provided with a holding table, a wiring harness socket penetrates through the holding table, the heating core is electrically connected with the wiring harness socket, and a sealing rubber plug is arranged on one side of the holding table, which is away from the liquid tank.

7. The liquid heater of claim 6, wherein the liquid tank is provided with a first temperature control switch, and the first temperature control switch is connected with the heating core body in series to control the on-off of the circuit of the heating core body.

8. The liquid heater of claim 7, wherein the liquid tank is further provided with a second temperature control switch, and the second temperature control switch is connected in series with the power supply device of the heating core body to control the on/off of a circuit of the power supply device.

9. The liquid heater of claim 3, further comprising a connecting tab for connecting the tank and the incubator.

10. An energy storage system, comprising:

a lithium battery;

a liquid heater according to any one of claims 1 to 9, for use in thermal management of the lithium battery.

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