CN-114992735-B - Cold accumulation device and air conditioning unit

Abstract

The invention provides a cold accumulation device and an air conditioning unit. The cold accumulation device comprises a shell, at least two cold accumulation layers, wherein all the cold accumulation layers are distributed in the shell in parallel along the vertical direction, and at least one cold accumulation unit is arranged in the cold accumulation layers. The cold accumulation device and the air conditioning unit provided by the invention have the advantages that the cold accumulation units arranged in a staggered manner are utilized to form the bending flow channels with fixed positions in the shell, so that collision caused by impact of the cold accumulation units in the shell can be avoided, and meanwhile, the circulating resistance of the stacked cold accumulation units to the refrigerant can be avoided, so that the reliability of the cold accumulation device and the air conditioning unit is effectively ensured. The cold accumulation unit is arranged in a shape of big end down, so that the cold accumulation unit can be always in contact with the shell for refrigeration in the process of continuously melting the ice accumulation agent, and the heat exchange efficiency of the cold accumulation unit is further increased by arranging the heat conducting core body, so that the cold release rate of the cold accumulation unit is effectively ensured, and the reliability of the cold accumulation device is further improved.

Inventors

• ZHANG LONGAI
• WANG CHUANHUA
• LIU JINXI
• CHEN YI
• YANG BING

Assignees

• 珠海格力电器股份有限公司

Dates

Publication Date

20260505

Application Date

20220613

Claims (9)

1. 1. A cold accumulation device is characterized by comprising: a housing (1); At least two cold accumulation layers, all of which are distributed in the shell (1) in parallel along the vertical direction; At least one cold accumulation unit (2) is arranged in the cold accumulation layer, and the cold accumulation units (2) in two adjacent cold accumulation layers are arranged in a staggered mode; The cold accumulation unit (2) comprises a shell (21) and an ice accumulation agent (22) arranged in the shell (21), and the sectional area of the shell (21) is gradually reduced from the lower end of the cold accumulation unit (2) to the upper end of the cold accumulation unit (2); The shell (21) comprises a conical portion (211), a deformation portion (212) and a bottom surface portion (213), wherein the bottom surface portion (213) forms the lower end of the cold accumulation unit (2), the bottom surface portion (213) is connected with the conical portion (211) through the deformation portion (212), and the bottom surface portion (213) can be far away from or close to the conical portion (211) under the deformation of the deformation portion (212).
2. 2. The cold accumulation device as in claim 1, characterized in that the cold accumulation unit (2) further comprises a heat conductive core (23), the heat conductive core (23) being disposed within the housing (21), and a portion of the heat conductive core (23) protruding out of the housing (21).
3. 3. The cold accumulation device as in claim 2, characterized in that the upper and lower ends of the heat conducting core (23) protrude from the outer shell (21), and the upper end of the heat conducting core (23) is provided with a first connecting member (24), the lower end of the heat conducting core (23) is provided with a second connecting member, and two cold accumulation units (2) connected to each other are connected through the first connecting member (24) and the second connecting member.
4. 4. The cold accumulation device as in claim 1, wherein the number of the cold accumulation layers is at least three, the cold accumulation layers in the singular are sequentially connected, and the cold accumulation layers in the even number are sequentially connected.
5. 5. The cold accumulation device as in claim 1 further comprising a liquid separation plate (3), wherein a communication port is provided on the housing (1), and the liquid separation plate (3) is located between the communication port and the cold accumulation layer adjacent to the communication port.
6. 6. The cold accumulation device as in claim 5, wherein a first communication port (11) is provided at the upper end of the casing (1), a second communication port (12) is provided at the lower end of the casing (1), the liquid separation plate (3) is provided between the first communication port (11) and the uppermost cold accumulation layer, and the liquid separation plate (3) is provided between the second communication port (12) and the lowermost cold accumulation layer.
7. 7. The cold accumulation device as in claim 6, characterized in that the axis of the first communication port (11) is not collinear with the axis of the second communication port (12).
8. 8. The cold accumulation device as in claim 1, wherein the cold accumulation units (2) in adjacent two of the cold accumulation layers together constitute a folded flow path.
9. 9. An air conditioning unit comprising a cold storage device according to any one of claims 1 to 8.

Description

Cold accumulation device and air conditioning unit Technical Field The invention relates to the technical field of air treatment equipment, in particular to a cold accumulation device and an air conditioning unit. Background According to statistics, the electricity load of the urban air conditioner is more than half of the total load of urban peak power, and the characteristics of the air conditioner load and the electric load are extremely matched, namely, the electricity consumption of the air conditioner is the main reason for causing the larger peak-valley load difference of the power grid. Therefore, the time-of-use electricity price policy of the plurality of peaks Gu Ping is put out, and particularly, a trigger is provided for the development of the energy storage air conditioner aiming at various preferential policies of the energy storage air conditioner technical popularization. The cold accumulation air conditioning system stores the refrigerating capacity of the refrigerator during night electricity consumption low valley time (the electricity price is cheaper at the moment) with lower air conditioning load, and releases the refrigerating capacity during the daytime electricity consumption peak time (the electricity price is expensive) so as to meet the peak electricity consumption requirement required by production and life. Most of the power consumption of the system occurs in the night power consumption valley period, so that the peak shifting and valley filling of the power consumption load can be realized. However, the cold accumulation devices in the prior art all adopt the structure of the randomly unordered ice hockey balls or the ice hockey ball chains for accumulating cold, and when the refrigerant enters the cold accumulation device, the ice hockey balls or the ice hockey ball chains can generate collision-free flow impact due to the refrigerant, so that the problem that the circulation resistance of the refrigerant is increased and the cold accumulation device is unreliable is solved. Disclosure of Invention In order to solve the technical problem that the cold accumulation equipment is unreliable due to collision of ice balls in the cold accumulation equipment in the prior art, the cold accumulation device and the air conditioning unit which are reasonably arranged to reduce the circulation resistance are provided. A cold storage device, comprising: A housing; at least two cold accumulation layers, all of which are distributed in the shell in parallel along the vertical direction; At least one cold accumulation unit is arranged in the cold accumulation layer, and the cold accumulation units in two adjacent cold accumulation layers are arranged in a staggered mode. The cold accumulation unit comprises a shell and an ice accumulation agent arranged in the shell, and the sectional area of the shell is gradually reduced from the lower end of the cold accumulation unit to the upper end of the cold accumulation unit. The shell comprises a conical portion, a deformation portion and a bottom surface portion, wherein the bottom surface portion forms the lower end of the cold accumulation unit, the bottom surface portion is connected with the conical portion through the deformation portion, and the bottom surface portion can be far away from or close to the conical portion under deformation of the deformation portion. The cold accumulation unit further comprises a heat conduction core body, wherein the heat conduction core body is arranged in the shell, and part of the heat conduction core body protrudes out of the shell. The upper end and the lower extreme of heat conduction core all outstanding the shell, just the upper end of heat conduction core is provided with first connecting piece, the lower extreme of heat conduction core is provided with the second connecting piece, and two cold-storage units of interconnect pass through first connecting piece with the second connecting piece links to each other. The number of the cold accumulation layers is at least three, the cold accumulation layers in the singular number are sequentially connected, and the cold accumulation layers in the even number are sequentially connected. The cold accumulation device further comprises a liquid separation plate, a communication port is formed in the shell, and the liquid separation plate is located between the communication port and the cold accumulation layer adjacent to the communication port. The upper end of casing is provided with first communication port, the lower extreme of casing is provided with the second communication port, be provided with between first communication port and the cold-storage layer of upper strata divide the liquid board, be provided with between second communication port and the cold-storage layer of lower floor divide the liquid board. The axis of the first communication port is not collinear with the axis of the second communication port. The cold accumulation units in two ad