CN219181204U

CN219181204U - Charging device

Info

Publication number: CN219181204U
Application number: CN202223052848.8U
Authority: CN
Inventors: 尹斌; 请求不公布姓名
Original assignee: Hangzhou Sanhua Research Institute Co Ltd
Current assignee: Hangzhou Sanhua Research Institute Co Ltd
Priority date: 2022-11-16
Filing date: 2022-11-16
Publication date: 2023-06-13
Anticipated expiration: 2032-11-16

Abstract

The utility model discloses a charging device which comprises a charging unit, a power supply, a heat exchange unit and a cabinet body, wherein the charging unit is electrically connected with the power supply, and the heat exchange unit is used for cooling the charging unit; the power supply is positioned in the cabinet body, and at least part of the heat exchange unit and the power supply are positioned in the same cabinet body. Thus, the integration degree of the charging device is improved.

Description

Charging device

Technical Field

The utility model relates to the technical field of charging devices, in particular to a charging device.

Background

The charging device comprises a charging gun, a charging cable and a power cabinet, wherein a power supply is arranged in the power cabinet, and the power supply supplies power to the charging gun through the charging cable. In order to solve the problem of heat generation of the charging device, it is necessary to provide cooling devices for the charging gun and the charging cable. In the related art, the cooling device is provided independently of the power cabinet, resulting in a low integration degree of the charging device.

Therefore, it is necessary to provide a charging device with a high degree of integration.

Disclosure of Invention

The utility model aims to provide a charging device with high integration degree.

The aim of the utility model is achieved by the following technical scheme:

the charging device comprises a charging unit, a power supply, a heat exchange unit and a cabinet body, wherein the charging unit is electrically connected with the power supply, and the heat exchange unit is used for cooling the charging unit; the power supply is positioned in the cabinet body, and at least part of the heat exchange unit and the power supply are positioned in the same cabinet body.

In the charging device, at least part of the heat exchange unit and the power supply are positioned in the same cabinet body, and the cabinet body is shared by at least part of the heat exchange unit and the power supply, so that the integration degree of the charging device is improved.

Drawings

FIG. 1 is a schematic diagram of a charging device according to the present utility model;

FIG. 2 is a schematic diagram of a first embodiment of the charging device shown in FIG. 1;

FIG. 3 is a schematic diagram of the heat exchange unit of FIG. 2;

FIG. 4 is a schematic diagram of a second embodiment of the charging device shown in FIG. 1;

fig. 5 is a schematic view of the heat exchange member of the region a in fig. 1.

Detailed Description

Exemplary embodiments of the present utility model will be described in detail below with reference to the accompanying drawings. If there are several specific embodiments, the features in these embodiments can be combined with each other without conflict. When the description refers to the accompanying drawings, the same numbers in different drawings denote the same or similar elements, unless otherwise specified. What is described in the following exemplary embodiments does not represent all embodiments consistent with the utility model; rather, they are merely examples of apparatus, articles, and/or methods that are consistent with aspects of the utility model as set forth in the claims.

The terminology used in the present utility model is for the purpose of describing particular embodiments only and is not intended to limit the scope of the present utility model. As used in the specification and claims of the present utility model, the singular forms "a," "an," or "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

It should be understood that words such as "first," "second," and the like, used in the description and in the claims of the present utility model, do not denote any order, quantity, or importance, but rather are names used to distinguish one feature from another. Likewise, the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one. Unless otherwise indicated, the terms "front," "rear," "upper," "lower," and the like are used herein for convenience of description and are not limited to a particular location or to a spatial orientation. The word "comprising" or "comprises", and the like, is an open-ended expression, meaning that elements appearing before "comprising" or "including", encompass the elements appearing after "comprising" or "including", and equivalents thereof, and not exclude that elements appearing before "comprising" or "including", may also include other elements. In the present utility model, if a plurality of the above-mentioned components are present, the meaning of the above-mentioned components is two or more.

Referring to fig. 1 to 3, the present utility model discloses a charging device, which includes a charging unit 1 and a power source 2, wherein the power source 2 is electrically connected to the charging unit 1 for supplying power to the charging unit 1. Specifically, the charging unit 1 is connected to the power source 2 through a first wire 10.

Referring to fig. 1, the charging device further includes a cabinet body 5, the cabinet body 5 is hollow, the power supply 2 is accommodated in the cavity of the cabinet body 5, and the cabinet body 5 protects the power supply 2. The charging unit 1 is located in the external space of the cabinet 5, and the power supply 2 is located in the cabinet 5.

With continued reference to fig. 1, the charging device further comprises a heat exchange unit 3 and a control mechanism 4. The heat exchange unit 3 is used to cool the charging unit 1. The heat exchange unit 3 includes a heat exchange member 30, and the heat exchange member 30 is used for exchanging heat with the charging unit 1. The charging unit 1 comprises a charging cable and a charging gun 11, which charging cable and charging gun 11 may be assembled together in actual use, the heat exchanging member 30 being adapted to exchange heat with at least one of the charging cable and charging gun 11. The heat exchanging member 30 may be a pipe, a liquid cooling plate, or other heat exchanging element provided in the charging unit 1.

At least part of the heat exchange unit 3 and the power supply 2 are positioned in the same cabinet body 5, so that the integration degree of the charging device is improved. The control mechanism 4 is electrically connected to the power supply 2, and is used for controlling the power supply of the power supply 2. At least part of the heat exchange unit 3 is electrically connected to the control mechanism 4. For example, the electrical part of the heat exchange unit 3, the control mechanism 4 is used for controlling the electrical part. Specifically, the control mechanism 4 is connected to the power source 2 via the second wire 20. The control mechanism 4 is located in the cabinet 5.

Fig. 2 shows a schematic view of a first embodiment of the charging device of the present application. The heat exchange unit 3 adopts a compressor liquid cooling system. As shown in fig. 2, the heat exchange unit 3 includes a first flow path 301 and a second flow path 302, the first flow path 301 being a refrigerant circulation flow path, and the second flow path 302 being a coolant circulation flow path for cooling the charging cable of the charging unit 1. The first flow path 301 and the second flow path 302 each have a passage for fluid communication. The first flow path 301 is provided with a compressor 31, a condenser 32, and an evaporator 33. The compressor 31, the condenser 32 and the evaporator 33 are arranged in series. The second flow path 302 is provided with a first liquid pump 351 and a heat exchange member 30. An evaporator 33 is also provided on the second flow path 302, and the first liquid pump 351, the heat exchange member 30, and the evaporator 33 are provided in series. The power supply 2 is used for supplying power to the charging unit 1, and can also be used for supplying power to the electric part of the heat exchange unit 3; the heat exchange unit 3 provides cold for the charging cable of the charging unit 1.

At least one of the compressor 31, the condenser 32, the evaporator 33, the first throttling element 34 and the first liquid pump 351 is located inside the cabinet 5, and the heat exchanging element 30 is located outside the cabinet 5. The compressor 31 and the first liquid pump 351 are electrically connected to the power source 2. Specifically, referring to fig. 3, the evaporator 33 includes a first interface 331, a second interface 332, a third interface 333, and a fourth interface 334. The first and

second ports

331 and 332 communicate with the passage of the first flow path 301, and the third and

fourth ports

333 and 334 communicate with the passage of the second flow path 302. The heat exchange member 30 includes an inlet 3001 for inflow of the cooling liquid and an outlet 3002 for outflow of the cooling liquid. The compressor 31 has a first inlet 311 for inflow of refrigerant and a first outlet 312 for outflow of refrigerant, and the condenser 32 has a second inlet 321 for inflow of refrigerant and a second outlet 322 for outflow of refrigerant. The first outlet 312 of the compressor 31 communicates with the second inlet 321 of the condenser 32. The second outlet 322 of the condenser 32 communicates with the second port 332 of the evaporator 33; the first port 331 of the evaporator 33 communicates with the first inlet 311 of the compressor 31. The first liquid pump 351 includes a third inlet 3501 for inflow of the cooling liquid and a third outlet 3502 for outflow of the cooling liquid. The fourth interface 334 of the evaporator 33 communicates with the third inlet 3501 of the first liquid pump 351; the third outlet 3502 of the first liquid pump 351 communicates with the inlet 3001 of the heat exchange element 30; the outlet 3002 of the heat exchange member 30 communicates with the third port 333 of the evaporator 33. The cooling liquid cools the charging cable of the charging unit 1, the evaporator 33 is used for exchanging heat with the cooling liquid, the compressor 31 receives the gaseous refrigerant of the evaporator 33 and then compresses the gaseous refrigerant into high-temperature and high-pressure gaseous refrigerant, the high-temperature and high-pressure gaseous refrigerant enters the condenser 32 again, the condenser 32 condenses the high-temperature and high-pressure gaseous refrigerant into low-temperature and high-pressure refrigerant, and the low-temperature and high-pressure refrigerant enters the evaporator 33 again for exchanging heat.

The first port 331 of the evaporator 33 is an outlet for the outflow of the refrigerant, the second port 332 of the evaporator 33 is an inlet for the inflow of the refrigerant, the third port 333 of the evaporator 33 is an inlet for the inflow of the cooling liquid, and the fourth port 334 of the evaporator 33 is an outlet for the outflow of the refrigerant.

Referring to fig. 2, the heat exchange unit 3 further includes a first throttling element 34, the first throttling element 34 being disposed in the first flow path 301 for controlling the flow rate of the liquid refrigerant to the evaporator 33. In the embodiment illustrated in the present application, the compressor 31, the condenser 32, the evaporator 33 and the first throttling element 34 are arranged in series, the first throttling element 34 being connected between the condenser 32 and the evaporator 33. Wherein the first throttling element 34 may be a throttle valve. In the illustrated embodiment of the present application, the compressor 31, the condenser 32, the evaporator 33, the first throttling element 34, the first liquid pump 351 and the control mechanism 4 are all accommodated in the cavity of the cabinet 5, so that the occupied space is small, and the on-site installation, maintenance and use are convenient.

Referring to fig. 3, the second flow path 302 includes a first main path 3021 and at least two first branches 3022, the at least two first branches 3022 are arranged in parallel, the at least two first branches 3022 are each in communication with the first main path 3021, and the first branches 3022 are provided with the heat exchange member 30. The first liquid pump 351 is provided in the first main passage 3021.

Referring to fig. 2 and 3, in some embodiments, the heat exchange unit 3 further comprises

temperature sensors

36, 37, the

temperature sensors

36, 37 being provided in the second flow path 302, the second flow path 302 being for the circulation of a cooling liquid. The heat exchange member 30 includes an inlet 3001 for inflow of the cooling liquid and an outlet 3002 for outflow of the cooling liquid, and the

temperature sensors

36, 37 include a first temperature sensor 36 and a second temperature sensor 37, the first temperature sensor 36 being close to the inlet 3001 with respect to the outlet 3002, the second temperature sensor 37 being close to the outlet 3002 with respect to the inlet 3001.

Specifically, the second temperature sensor 37 is provided on the first main passage 3021 of the second flow passage 302, and the second temperature sensor 37 is provided near the third port 333 of the evaporator 33. The first temperature sensor 36 is disposed in the first main passage 3021 of the second flow passage 302, and the first temperature sensor 36 is located near the third outlet 3502 with respect to the third inlet 3501 of the first liquid pump 351. The first temperature sensor 36 is used to detect the temperature of the coolant flowing out of the third outlet 3502 of the first liquid pump 351, referred to as the feed-liquid temperature, and the second temperature sensor 37 is used to detect the temperature of the coolant entering the third interface 333 of the evaporator 33, referred to as the return-liquid temperature. The first temperature sensor 36 and the second temperature sensor 37 are also positioned in the cabinet body 5, and the cabinet body 5 plays a role in protection. Of course, the first temperature sensor 26 and the second temperature sensor 37 may be provided outside the cabinet 5, which is not limited herein. In other embodiments, the heat exchange unit 3 may also be provided with only the first temperature sensor 36 and without the second temperature sensor 37.

As shown in fig. 3, the heat exchange unit 3 further includes a plurality of control valves 38, where the plurality of control valves 38 are correspondingly disposed in the plurality of first branches 3022 for conducting or blocking the second flow paths 302 where the plurality of charging guns 11 are located. The control valves 38 are arranged in one-to-one correspondence with the first branches 3022. The control valve 38 may be a solenoid valve.

The heat exchange unit 3 is at least partially electrically connected to the power supply 2. For example an electrical part, which is supplied with power by a power supply 2. Specifically, the compressor 31, the first liquid pump 351, the first temperature sensor 36, the second temperature sensor 37, and the control valve 38 are all electrically connected to the power supply 2. The control mechanism 4 is electrically connected with the electric part of the heat exchange unit 3 and is used for controlling the cooling of the heat exchange unit 3. The compressor 31, the first liquid pump 351, the first temperature sensor 36, the second temperature sensor 37 and the control valve 38 are all electrically connected with the control mechanism 4, and the opening or closing of the compressor 31, the first liquid pump 351 and the control valve 38 is controlled by the control mechanism 4; and meanwhile, the temperature sensor is also used for receiving detection signals of the first temperature sensor 36 and the second temperature sensor 37, and processing and analyzing the detection signals.

When the heat exchange unit 3 adopts a compressor liquid cooling system, as shown in fig. 2, the working process of the charging device of the present application is as follows: when the charging unit 1 receives a working instruction, the power supply 2 transmits power to the charging unit 1 with load, the control mechanism 4 controls the first liquid pump 351 to be started, the cooling liquid is supplied to the charging unit 1 with load, and the first temperature sensor 36 and the second temperature sensor 37 collect the liquid supply temperature and the liquid return temperature; the control mechanism 4 comprehensively judges according to the power output of the power supply 2, the liquid supply temperature, the liquid return temperature, the power consumption rotation speed of the first liquid pump 351 and other parameters, if the liquid supply temperature is lower than the first preset temperature T1, the compressor 31 is not started temporarily, if the liquid supply temperature is not lower than the first preset temperature T1, the compressor 31 is started, the condenser 32 condenses the gaseous refrigerant compressed by the compressor 31 into a liquid state, the refrigerant enters the evaporator 33 through the first throttling element 34 to be evaporated, the refrigerating capacity generated by the evaporation of the refrigerant is transferred to the cooling liquid through the evaporator 33, the cooling liquid flows to the charging unit 1 to cool a charging cable, and then flows back to the evaporator 33 to exchange heat with the refrigerant. The charging device can automatically adjust the refrigerating capacity according to the parameters acquired by the first temperature sensor 36 and the second temperature sensor 37, so as to control the temperature of the charging cable and enable the charging unit 1 to be in a stable running state under low load or full load.

Fig. 4 shows a schematic diagram of a second embodiment of the charging device, which differs from the first embodiment in that: the heat exchange unit 3 adopts an air cooler liquid cooling system. The heat exchange unit 3 includes a heat exchange member 30, and the heat exchange member 30 is used for exchanging heat with the charging unit 1. As shown in fig. 4, the heat exchange unit 3 includes a circulation flow path 300, the circulation flow path 300 having a passage for fluid circulation, and the circulation flow path 300 is provided with an air condenser 39, a second liquid pump 352, and a heat exchanger 30. The air condenser 39, the second liquid pump 352 and the heat exchange member 30 are arranged in series. The air condenser 39 and the second liquid pump 352 are electrically connected to the power supply 2, and the air condenser 39 and the second liquid pump 352 are electrically connected to the control mechanism 4. The air condenser 39 includes a fan, and the control mechanism 4 adjusts the temperature of the cooling liquid by controlling the rotational speed of the fan. The air condenser 39 and the second liquid pump 352 are both positioned inside the cabinet 5, and the heat exchange member 30 is positioned outside the cabinet 5.

The air condenser 39 has a fourth inlet 391 for the inflow of cooling liquid and a fourth outlet 392 for the outflow of cooling liquid, and the second liquid pump 352 includes a fifth inlet 3503 for the inflow of cooling liquid and a fifth outlet 3504 for the outflow of cooling liquid. The fourth outlet 392 of the air condenser 39 communicates with the fifth inlet 3503 of the second liquid pump 352; the fifth outlet 3504 of the second liquid pump 352 communicates with the inlet 3001 of the heat exchange element 30. The outlet 3002 of the heat exchange member 30 communicates with a fourth inlet 391 of the air condenser 39. The cooling liquid of the heat exchange unit 3 may be an aqueous ethylene glycol solution, an aqueous propylene glycol solution, or the like, or may be an insulating liquid such as a fluorinated liquid or transformer oil.

Referring to fig. 4 and 5, the heat exchange unit 3 further includes a third temperature sensor 310, and the third temperature sensor 310 is disposed in the circulation flow path 300. Specifically, the third temperature sensor 310 is connected between the heat exchange member 30 and the air condenser 39. The third temperature sensor 310 is located close to the fourth inlet 391 of the air condenser 39 with respect to the fourth outlet 392 for detecting the temperature of the liquid flowing out of the heat exchange member 30. The third temperature sensor 310 may be disposed inside the cabinet 5 or may be disposed outside the cabinet 5. In addition, the third temperature sensor 310 may also be located near the outlet 3002 of the heat exchange member 30. The air condenser 39, the second liquid pump 352 and the third temperature sensor 310 are all electrically connected with the control mechanism 4; the air condenser 39, the second liquid pump 352, and the third temperature sensor 310 are also electrically connected to the power supply 2. The control mechanism 4 is electrically connected to the power supply 2.

When the heat exchange unit 3 adopts the air cooler liquid cooling system, as shown in fig. 4, the working process of the charging device of the present application is as follows: when the charging unit 1 receives the working instruction, the power supply 2 transmits power to the charging unit 1 with load, the control mechanism 4 controls the second liquid pump 352 to be started, and the cooling liquid is supplied to the charging unit 1 with load; the third temperature sensor 310 collects the liquid return temperature; the control mechanism 4 comprehensively judges according to the parameters of the power output of the power supply 2, the liquid return temperature, the power consumption rotation speed of the second liquid pump 352 and the like, adjusts the rotation speed of the fan of the air condenser 39, thereby reducing the temperature of the cooling liquid flowing through the air condenser 39 and delivering the low-temperature cooling liquid to the charging unit 1. The charging device can automatically adjust the cooling load according to the parameter collected by the third temperature sensor 310, thereby controlling the temperature of the charging cable, and enabling the charging unit 1 to be in a stable running state both in a low load and a full load.

According to the power supply device, the power supply 2 is used for supplying power to the charging unit 1, and also can be used for supplying power to the electric part of the heat exchange unit 3, so that the number of power supply equipment is reduced, and the cost is lowered; the heat exchange unit 3 provides refrigerating capacity for the charging unit 1 for cooling the charging cable, so that the heating problem of the charging unit 1 is improved; the control means 4 controls the cooling of the heat exchange unit 3 so that the charging unit 1 is in a steady operation state both at a low load and at a full load.

The above embodiments are only for illustrating the present utility model and not for limiting the technical solutions described in the present utility model, and it should be understood that the present utility model should be based on those skilled in the art, and although the present utility model has been described in detail with reference to the above embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made to the present utility model without departing from the spirit and scope of the present utility model and modifications thereof should be covered by the scope of the claims of the present utility model.

Claims

1. The charging device is characterized by comprising a charging unit, a power supply, a heat exchange unit and a cabinet body, wherein the charging unit is electrically connected with the power supply, and the heat exchange unit is used for cooling the charging unit;

the power supply is positioned in the cabinet body, and at least part of the heat exchange unit and the power supply are positioned in the same cabinet body.

2. The charging device of claim 1, wherein the heat exchange unit comprises a heat exchange member for exchanging heat with the charging unit, the heat exchange unit comprising a first flow path and a second flow path, each having a passage for fluid communication;

the first flow path is provided with a compressor, a condenser, an evaporator and a first throttling element, and the compressor, the condenser, the evaporator and the first throttling element are arranged in series;

the second flow path is provided with a first liquid pump and the heat exchange piece, the evaporator is also arranged in the second flow path, and the first liquid pump, the heat exchange piece and the evaporator are arranged in series;

at least one of the compressor, the condenser, the evaporator, the first throttling element and the first liquid pump is located in the cabinet body, and the heat exchange member is located outside the cabinet body.

3. The charging device of claim 2, wherein the compressor and the first liquid pump are each electrically connected to the power source.

4. The charging device of claim 2, wherein the evaporator comprises a first port, a second port, a third port, and a fourth port, the first port and the second port being in communication with a passage of the first flow path, the third port and the fourth port being in communication with a passage of the second flow path.

5. The charging device according to claim 2, wherein the heat exchange unit includes a temperature sensor provided in the second flow path for circulation of a cooling liquid;

the heat exchange member includes an inlet for inflow of the cooling liquid and an outlet for outflow of the cooling liquid, and the temperature sensor includes a first temperature sensor and a second temperature sensor, the first temperature sensor being close to the inlet with respect to the outlet, and the second temperature sensor being close to the outlet with respect to the inlet.

6. The charging device according to claim 2, wherein the second flow path comprises a first main path and at least two first branches, the at least two first branches being arranged in parallel, each of the at least two first branches being in communication with the first main path, the first branches being provided with the heat exchange member.

7. The charging device of claim 6, wherein the heat exchange unit further comprises a control valve disposed in the first branch.

8. The charging device of claim 1, wherein the heat exchange unit comprises a heat exchange member for exchanging heat with the charging unit;

the heat exchange unit comprises a circulation flow path, the circulation flow path is provided with a channel for fluid circulation, the circulation flow path is provided with an air condenser, a second liquid pump and a heat exchange piece, the air condenser, the second liquid pump and the heat exchange piece are arranged in series, the air condenser and the second liquid pump are both positioned in the cabinet body, and the heat exchange piece is positioned outside the cabinet body;

the air condenser and the second liquid pump are electrically connected with the power supply.

9. The charging device of claim 8, wherein the heat exchange unit further comprises a third temperature sensor disposed in the circulation flow path, the third temperature sensor being connected between the heat exchange member and the air condenser.

10. A charging arrangement as claimed in claim 2 or 8, in which the charging arrangement includes a control mechanism, the power source being electrically connected to the control mechanism, and at least part of the heat exchange unit being electrically connected to the control mechanism, the control mechanism being located within the cabinet.