CN219302624U

CN219302624U - New energy battery pack testing high-low temperature integrated machine

Info

Publication number: CN219302624U
Application number: CN202222814227.2U
Authority: CN
Inventors: 周定山; 祝新生; 江再宽; 宋健
Original assignee: Suzhou Aode High End Equipment Co ltd
Current assignee: Suzhou Aode High End Equipment Co ltd
Priority date: 2022-10-19
Filing date: 2022-10-19
Publication date: 2023-07-04
Anticipated expiration: 2032-10-19

Abstract

The utility model discloses a high-low temperature integrated machine for testing a new energy battery pack, which comprises a variable frequency compressor, an oil separator, a heat recoverer, a condenser, a drying filter, an electronic expansion valve, an evaporator, a hot gas bypass valve, a thermal spray valve, an expansion tank, a variable frequency circulating pump, an electric heater, a liquid filter, a pressure sensor, a temperature sensor, a flow sensor, a valve and a plurality of pipelines. The utility model has the beneficial effects that: the variable frequency compressor has the characteristics of stable starting current, energy saving in operation, accurate temperature control and low noise, the electronic expansion valve can better prevent liquid impact and protect the safety of the compressor, ensure normal oil return, the exhaust temperature of the compressor is controlled by the thermal liquid spraying valve not to exceed a set upper limit, the temperature control of the variable frequency circulating pump is realized between minus 40 ℃ and +100 ℃, the requirements of high temperature control precision and low energy consumption are met, and the proper proportion of refrigeration output and heating output can be intelligently selected under the complex and changeable conditions.

Description

New energy battery pack testing high-low temperature integrated machine

Technical Field

The utility model relates to the technical field of high-low temperature detection equipment, in particular to a high-low temperature integrated machine for testing a new energy battery pack.

Background

With the development of new energy automobile industry, research and development, production and product detection links of related equipment such as a battery pack and a battery controller continuously put more and more demands on water-cooling temperature control equipment.

For example, to study and verify the performance of a battery pack during charging and discharging, it is necessary to simulate the performance of the battery pack and battery controller during various operations under different air environmental conditions and at different temperatures of the automobile antifreeze. In the aspect of the temperature range of the automobile antifreeze, the temperature test range required by the national standard and industry at present is generally between-40 ℃ and +100 ℃.

Because the industry develops rapidly in recent years, the traditional equipment is difficult to meet various new technical requirements of the rapid development of new industries, and special testing equipment which has the advantages of simple principle and structure, stability and reliability, low energy consumption, wide-range variable adjustment of temperature and flow, accurate control and intelligent operation is urgently needed in the market.

Disclosure of Invention

The utility model aims to provide a new energy battery pack testing high-low temperature integrated machine so as to solve the problems in the background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a new energy battery package test high low temperature all-in-one, includes first pipeline, be equipped with oil separator, inverter compressor and heat recoverer on the first pipeline in proper order, the heat recoverer respectively through second pipeline, third pipeline with first pipeline, condenser are connected, the heat recoverer lower extreme is equipped with the fourth pipeline of being connected with it, and its other end is equipped with the evaporimeter of being connected with it, the condenser with be equipped with the fifth pipeline of being connected between the evaporimeter, be equipped with on the fourth pipeline with the sixth pipeline of being connected with the fifth pipeline, the evaporimeter one end is equipped with seventh pipeline and the eighth pipeline of being connected with it respectively, the seventh pipeline other end is equipped with the electric heater of being connected with it, the eighth pipeline other end is equipped with the stop outlet valve of being connected with it, the electric heater is kept away from the other end of seventh pipeline is equipped with the ninth pipeline of being connected with it, and it keeps away from the other end of electric heater is equipped with the medium import valve.

Preferably, a tenth pipeline connected with the first pipeline between the oil separator and the variable frequency compressor is further arranged on the first pipeline, and the other end of the tenth pipeline is connected with the fifth pipeline.

Preferably, a hot gas bypass valve is arranged on the tenth pipeline.

Preferably, a thermal spray valve is arranged on the sixth pipeline.

Preferably, the fifth pipeline is sequentially provided with a dry filter and an electronic expansion valve.

Preferably, the eighth pipeline is sequentially provided with a liquid filter, a pressure sensor, a temperature sensor and a flow sensor.

Preferably, the other end of the condenser far away from the third pipeline is respectively provided with an eleventh pipeline and a twelfth pipeline which are connected with the condenser, and the other end of the condenser is respectively provided with a cooling outlet valve and a cooling inlet valve.

Preferably, the ninth pipeline is sequentially provided with a variable-frequency circulating pump and an expansion tank.

Advantageous effects

The high-low temperature integrated machine for testing the new energy battery pack provided by the utility model adopts the variable frequency compressor, has the characteristics of stable starting current, energy saving in operation, accurate temperature control and low noise, and the electronic expansion valve can better prevent liquid impact and protect the safety of the compressor, the compressor can avoid too low suction pressure when the compressor operates, ensure the normal oil return of the compressor, the thermal spray valve can control the exhaust temperature of the compressor not to exceed the set upper limit, the variable frequency circulating pump can control the medium output flow, the temperature control is realized between minus 40 ℃ and plus 100 ℃, the requirements of high temperature control precision and low energy consumption are met, and the proper proportion of refrigeration output and heating output can be intelligently selected under the condition that the tested products of customers are various complicated and changeable.

Drawings

Fig. 1 is a schematic plan view of the overall structure of the present utility model.

Detailed Description

The following are specific embodiments of the present utility model and the technical solutions of the present utility model will be further described with reference to the accompanying drawings, but the present utility model is not limited to these embodiments.

Examples

As shown in fig. 1, a high-low temperature integrated machine for testing a new energy battery pack comprises a first pipeline 4, wherein an oil separator 1, a variable frequency compressor 2 and a heat recoverer 3 are sequentially arranged on the first pipeline 4, the heat recoverer 3 is respectively connected with the first pipeline 4 and a condenser 8 through a second pipeline 33 and a third pipeline 32, a fourth pipeline 7 connected with the heat recoverer 3 is arranged at the lower end of the heat recoverer 3, an evaporator 6 connected with the fourth pipeline is arranged at the other end of the heat recoverer, a fifth pipeline 10 connected with the evaporator is arranged between the condenser 8 and the evaporator 6, a sixth pipeline 9 connected with the fifth pipeline 10 is arranged on the fourth pipeline 7, a seventh pipeline 15 and an eighth pipeline 22 connected with the evaporator 6 are respectively arranged at one end of the evaporator 6, an electric heater 16 connected with the electric heater 16 is arranged at the other end of the seventh pipeline 15, a stop outlet valve 23 connected with the electric heater 16 is arranged at the other end of the eighth pipeline 22, a ninth pipeline 17 connected with the electric heater 16 is arranged at the other end far from the seventh pipeline 15, and a medium inlet valve 20 is arranged at the other end far from the electric heater 16.

In this embodiment, the tenth pipeline 5 connected with the first pipeline 4 between the oil separator 1 and the variable frequency compressor 2 is further arranged on the first pipeline 4, the other end of the tenth pipeline is connected with the fifth pipeline 10, the tenth pipeline 5 is provided with a hot gas bypass valve 13, the compressor can be automatically started when the air suction pressure is too low, the minimum air suction pressure of the compressor can be constant, the air suction pressure is prevented from being too low when the compressor runs, and the normal oil return of the compressor is ensured.

The sixth pipeline 9 is provided with a thermal spray valve 14, the spray flow is automatically controlled according to the exhaust temperature of the compressor, the exhaust temperature of the compressor is controlled to be not more than the set upper limit, the operation safety of the compressor is protected, the service life of the compressor is prolonged, the fifth pipeline 10 is sequentially provided with a dry filter 11 and an electronic expansion valve 12, the opening of a valve motor can be automatically operated and adjusted through PID through the feedback of the pressure and the temperature of the refrigerant in a large range, and the device has the advantages of high response speed, accurate temperature control, better liquid impact prevention and compressor safety protection;

the eighth pipeline 22 is sequentially provided with a liquid filter 27, a pressure sensor 24, a temperature sensor 25 and a flow sensor 26, the other end of the condenser 8 far away from the third pipeline 32 is respectively provided with an eleventh pipeline 28 and a twelfth pipeline 29 which are connected with the condenser, the other end of the condenser is respectively provided with a cooling outlet valve 30 and a cooling inlet valve 31, the ninth pipeline 17 is sequentially provided with a variable frequency circulating pump 18 and an expansion tank 21, and closed circulation is adopted, so that equipment is prevented from being damaged by expansion caused by heat and contraction caused by cold of liquid, and the inlet of the variable frequency circulating pump is communicated with the bottom of the expansion tank.

The variable frequency compressor automatically controls the output frequency and power of the compressor through the PID controller according to the difference between the set medium temperature and the actual measured medium temperature, and has the characteristics of stable starting current, energy saving in operation, accurate temperature control, low noise and the like.

The electronic expansion valve is used as a throttling device, and is characterized in that the opening of a valve motor can be automatically operated and regulated through PID through the feedback of the pressure and the temperature of the refrigerant in a large range, and the electronic expansion valve has the advantages of high response speed, accurate temperature control, better liquid impact prevention and compressor safety protection.

A tee joint is arranged between an outlet pipeline of the compressor and an inlet pipeline of the evaporator, and a hot gas bypass valve is connected in parallel with the main loop, so that the compressor can be automatically started when the suction pressure of the compressor is too low, the minimum suction pressure of the compressor can be constant, the suction pressure is prevented from being too low when the compressor runs, and the normal oil return of the compressor is ensured.

A tee joint is arranged between the outlet pipeline of the drying filter and the outlet pipeline of the evaporator, and a thermal liquid spraying valve is connected in parallel with the main loop.

The variable frequency circulating pump controls the medium output flow, can realize that the output flow can be set in a certain range while saving energy, and can stably control the output flow.

The temperature control strategy can realize the requirements of high temperature control precision and low energy consumption between minus 40 ℃ and plus 100 ℃, and can intelligently select the proper proportion of refrigeration output and heating output under the condition that the tested products of clients are various complex and changeable. The program can automatically identify and judge whether the tested product is in an exothermic mode or an endothermic mode, and the corresponding relation between the refrigerating output and the heating output is more or less cold and more heat respectively, so that the intelligent energy-saving operation purpose of the full temperature area is mainly realized.

The heat recoverer is adopted, the cold side of the heat recovery is connected in series with the air suction pipeline of the compressor, and the hot side of the heat recovery is connected in series with the exhaust pipeline of the compressor, so that the purpose is to improve the energy efficiency ratio of the operation of the refrigerating system, save energy consumption, increase the air suction superheat degree and avoid the liquid impact of the compressor.

The closed circulation is adopted in the side circulation of the customer medium, and in order to avoid the equipment from being damaged by expansion with heat and contraction with cold of the liquid, the inlet of the variable-frequency circulating pump is communicated with the bottom of the expansion tank. Compared with open circulation, the closed circulation has smaller medium volume in the system pipe, higher temperature rising and falling speed, and the medium is not contacted with air, is not easy to oxidize, volatilize and pollute, and is more environment-friendly and energy-saving.

Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the summary of the present utility model within the scope of the present utility model.

Claims

1. The utility model provides a new forms of energy battery package test high low temperature all-in-one which characterized in that: including first pipeline (4), be equipped with oil separator (1), inverter compressor (2) and heat recoverer (3) on first pipeline (4) in proper order, heat recoverer (3) respectively through second pipeline (33), third pipeline (32) with first pipeline (4), condenser (8) are connected, heat recoverer (3) lower extreme is equipped with fourth pipeline (7) with it is connected, and its other end is equipped with evaporimeter (6) with it is connected, condenser (8) with be equipped with fifth pipeline (10) that are connected between evaporimeter (6), be equipped with on fourth pipeline (7) with sixth pipeline (9) that fifth pipeline (10) are connected, the seventh pipeline (15) and eighth pipeline (22) that are connected are equipped with respectively to one end of evaporimeter (6), the seventh pipeline (15) other end is equipped with electric heater (16) that are connected with it, the eighth pipeline (22) other end is equipped with stop outlet valve (23) that are connected with it, electric heater (16) other end that are equipped with that the seventh pipeline (16) are kept away from is equipped with electric heater (16) the other end that is connected with (20) of being kept away from.

2. The new energy battery pack testing high-low temperature all-in-one machine according to claim 1, wherein: a tenth pipeline (5) connected with the first pipeline (4) between the oil separator (1) and the variable frequency compressor (2) is further arranged on the first pipeline, and the other end of the tenth pipeline is connected with the fifth pipeline (10).

3. The new energy battery pack testing high-low temperature all-in-one machine according to claim 2, wherein: and a hot gas bypass valve (13) is arranged on the tenth pipeline (5).

4. The new energy battery pack testing high-low temperature all-in-one machine according to claim 1, wherein: the sixth pipeline (9) is provided with a thermal liquid spraying valve (14).

5. The new energy battery pack testing high-low temperature all-in-one machine according to claim 1, wherein: and a drying filter (11) and an electronic expansion valve (12) are sequentially arranged on the fifth pipeline (10).

6. The new energy battery pack testing high-low temperature all-in-one machine according to claim 1, wherein: the eighth pipeline (22) is sequentially provided with a liquid filter (27), a pressure sensor (24), a temperature sensor (25) and a flow sensor (26).

7. The new energy battery pack testing high-low temperature all-in-one machine according to claim 1, wherein: the other end of the condenser (8) far away from the third pipeline (32) is respectively provided with an eleventh pipeline (28) and a twelfth pipeline (29) which are connected with the condenser, and the other end of the condenser is respectively provided with a cooling outlet valve (30) and a cooling inlet valve (31).

8. The new energy battery pack testing high-low temperature all-in-one machine according to claim 1, wherein: and the ninth pipeline (17) is sequentially provided with a variable-frequency circulating pump (18) and an expansion tank (21).