CN222941112U - Electrical box assembly and electrical equipment - Google Patents

Abstract

The present application provides an electrical box assembly and an electrical device. The electrical box assembly comprises: an electrical box (1), which is used for an electrical device (100), and comprises a box body (11) and an electrical device unit (16), wherein the electrical device unit (16) is arranged in the box body (11) and comprises at least one electrical component (17); and a temperature control system (2), which is thermally coupled to the electrical device unit (16) and adjusts the temperature of the electrical device unit (16) according to the ambient temperature. In this way, the operating reliability of the electrical box can be improved.

Description

Electrical box assembly and electrical equipment

Technical Field

The application relates to the technical field of electrical equipment, in particular to an electrical box assembly and electrical equipment.

Background

The electric box is an important component of electric equipment such as an air conditioner, and a large number of components are arranged in the electric box and perform functions such as control in the working process of the electric equipment.

In the related art, when the environmental temperature of components in the electrical box is higher or lower, the performance is poor, and the operation reliability of the electrical box is affected.

Disclosure of utility model

The application aims to solve the technical problem of improving the operation reliability of the electrical box.

In order to solve the above technical problem, a first aspect of the present application provides an electrical box assembly, which includes:

An electrical box for an electrical apparatus and comprising a box body and an electrical device unit, the electrical device unit being arranged in the box body and comprising at least one electrical element, and

And the temperature control system is thermally coupled with the electric device unit and adjusts the temperature of the electric device unit according to the ambient temperature.

In some embodiments, the temperature control system cools and/or heats the electrical device unit based on ambient temperature.

In some embodiments, the electrical device unit includes a first element unit including the IPM module and a second element unit having a smaller heat generation amount than the first element unit, and the temperature control system cools the first element unit and/or cools and/or heats the second element unit according to an ambient temperature.

In some embodiments, the temperature control system is configured to at least one of:

When the environmental temperature is greater than or equal to T1, the temperature control system cools the first element unit and the second element unit;

When the environmental temperature is less than T0, the temperature control system respectively cools and heats the first element unit and the second element unit;

when the environmental temperature is greater than or equal to T0 and less than T1, the temperature control system adjusts the temperature of the first element unit according to the previous working state, and does not adjust the temperature of the second element unit;

Wherein T1 is greater than T0.

In some embodiments, when the ambient temperature is less than T0, the temperature control system transfers heat from the first element unit to the second element unit to cool and warm the first element unit and the second element unit, respectively.

In some embodiments, the temperature control system includes a refrigerant flow path and a temperature control device, the refrigerant flow path is used for being connected with a refrigerant circulation loop of the electrical equipment so as to guide a refrigerant in the refrigerant circulation loop into the refrigerant flow path, and the temperature control device is arranged on the refrigerant flow path and is thermally coupled with the electrical equipment unit so as to adjust the temperature of the electrical equipment unit by exchanging heat between the refrigerant in the refrigerant flow path and the electrical equipment unit.

In some embodiments, the temperature control device is thermally coupled to a first element unit of the electrical element unit including the IPM module and a second element unit having a heat generation amount less than that of the first element unit to adjust temperatures of the first element unit and the second element unit by exchanging heat of a refrigerant in the refrigerant flow path with the first element unit and the second element unit.

In some embodiments, the refrigerant flow path includes a first flow path connected to the refrigerant circulation loop, the temperature control device is disposed on the first flow path and includes a first temperature control device and a second temperature control device, which are respectively thermally coupled with the first element unit and the second element unit to respectively adjust temperatures of the second element unit and the first element unit by respectively exchanging heat between the refrigerant in the first flow path and the first element unit and the second element unit.

In some embodiments, the first temperature control device comprises a heat exchange element, the heat exchange element is located on the first flow path and is thermally coupled with the first element unit to realize heat exchange between the refrigerant flowing through the heat exchange element and the first element unit to regulate the temperature of the first element unit, and/or the second temperature control device comprises a heat conduction element and a fan, the heat conduction element is located on the first flow path, the fan is thermally coupled with the heat conduction element and blows air into the box body to realize heat exchange between the refrigerant flowing through the heat conduction element and the second element unit to regulate the temperature of the second element unit.

In some embodiments, the heat exchange member is attached to the first element unit to effect thermal coupling between the heat exchange member and the first element unit, and/or the fan is attached to the heat transfer member to effect thermal coupling between the fan and the heat transfer member.

In some embodiments, the second temperature control device and the first temperature control device are arranged in sequence along a direction in which the refrigerant flows from the refrigerant circulation circuit into the first flow path.

In some embodiments, the first flow path includes a first pipe and a second pipe, the first pipe is connected to the refrigerant circulation loop, the second pipe is connected to the first temperature control device and the second temperature control device, so that the refrigerant can circulate between the first temperature control device and the second temperature control device through the first pipe and the second pipe, the temperature control system further includes a driving mechanism, the driving mechanism drives the refrigerant to circulate between the first temperature control device and the second temperature control device, so that the heat of the first element unit is transferred to the second element unit by the refrigerant, the temperature of the first element unit is reduced, and the temperature of the second element unit is raised, and/or the refrigerant flow path further includes a second flow path, and the second flow path is connected to the refrigerant circulation loop in parallel with the first flow path.

In some embodiments, the drive mechanism is located within the first temperature control device and/or the second flow path is in parallel with the first flow path first conduit.

In some embodiments, the refrigerant flow path is on-off connectable to the refrigerant circulation loop.

In some embodiments, the temperature control system includes an on-off control device, which is disposed on the refrigerant flow path and controls on-off between the refrigerant flow path and the refrigerant circulation loop to realize on-off connection between the refrigerant flow path and the refrigerant circulation loop.

In some embodiments, the on-off control device includes a first valve disposed at an inlet of the refrigerant flow path to control on-off between the inlet of the refrigerant flow path and the refrigerant circulation loop.

In some embodiments, the refrigerant flow path includes a first flow path and a second flow path connected in parallel with each other to the refrigerant circulation loop, and a first valve is provided at inlets of the first flow path and the second flow path to control on-off between the inlets of the first flow path and the second flow path and the refrigerant circulation loop.

In some embodiments, the on-off device further includes a second valve disposed at the outlet of the refrigerant flow path to control on-off between the outlet of the refrigerant flow path and the refrigerant circulation loop.

In some embodiments, the refrigerant flow path includes a first flow path and a second flow path connected to the refrigerant circulation loop in parallel with each other, and a second valve is provided at outlets of the first flow path and the second flow path to control on-off between the outlets of the first flow path and the second flow path and the refrigerant circulation loop.

In some embodiments, the electrical device unit includes a main control board, and the main control board detects an ambient temperature and is in signal connection with the temperature control system to control the temperature control system to adjust the temperature of the electrical device unit according to the ambient temperature.

In addition, the second aspect of the application also provides an electrical device comprising the electrical box assembly of any embodiment.

In some embodiments, the electrical device is an air conditioner.

Through setting up temperature control system, according to ambient temperature, adjust the temperature of electric device unit in the electrical apparatus box, can make the temperature of electric device unit in the electrical apparatus box adapt to ambient temperature change better, satisfy operational environment demand better, like this, can prevent effectively that the electric device unit in the electrical apparatus box from getting worse when ambient temperature is higher or lower, consequently, be favorable to promoting the operational reliability of electrical apparatus box.

Other features of the present application and its advantages will become apparent from the following detailed description of exemplary embodiments of the application, which proceeds with reference to the accompanying drawings.

Drawings

In order to more clearly illustrate the embodiments of the application or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic diagram of an electrical apparatus in an embodiment of the present application.

Fig. 2 is a diagram illustrating an operation state of the electrical box assembly according to an embodiment of the present application when an ambient temperature is greater than or equal to T1.

Fig. 3 is a diagram illustrating an operation state of the electrical box assembly according to the embodiment of the application when the ambient temperature is less than T0 and the temperature of the first element unit is lower than a preset value.

Fig. 4 is a diagram illustrating an operation state of the electrical box assembly according to the embodiment of the application when the ambient temperature is less than T0 and the temperature of the first element unit is greater than or equal to the preset value.

Fig. 5 is a control flow chart of the electrical box assembly in the embodiment of the application.

Reference numerals illustrate:

100. 101, air conditioner;

10. 20, a refrigerant circulation loop;

1. The device comprises an electric appliance box, 11, a box body, 12, a first element unit, 13, a second element unit, 14, a main control board, 15, an IPM module, 16, an electric appliance unit, 17 and an electric appliance element;

2. Temperature control system, 21, refrigerant flow path, 211, first flow path, 212, second flow path, 213, first pipeline, 214, second pipeline, 22, temperature control device, 221, first temperature control device, 222, second temperature control device, 223, heat conducting piece, 224, fan, 225, heat exchanging piece, 23, driving mechanism, 24, on-off control device, 241, first valve, 242, second valve.

Detailed Description

The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the application, its application, or uses. All other embodiments, which can be made by one of ordinary skill in the art without undue burden on the person of ordinary skill in the art based on embodiments of the present application, are within the scope of the present application.

Techniques, methods, and electrical devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, should be considered part of the specification.

In the description of the present application, it should be understood that the azimuth or positional relationships indicated by the azimuth terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal", and "top, bottom", etc., are generally based on the azimuth or positional relationships shown in the drawings, and are merely for convenience of describing the present application and simplifying the description, and these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of the present application, and the azimuth terms "inside and outside" refer to inside and outside with respect to the outline of each component itself.

In the description of the present application, it should be understood that the terms "first," "second," and the like are used for defining the components, and are merely for convenience in distinguishing the corresponding components, and the terms are not meant to have any special meaning unless otherwise indicated, so that the scope of the present application is not to be construed as being limited.

In addition, the technical features of the different embodiments of the present application described below may be combined with each other as long as they do not collide with each other.

Electric appliances such as washing machines and air conditioners generally comprise an electric box, so that the working process is controlled by components in the electric box.

Generally, various components such as an IPM module (INTELLIGENT POWER MODULE, an intelligent power module), a diode, an IGBT (Insulated Gate Bipolar Transistor, an insulated gate bipolar transistor), a rectifier bridge, an inductor, a capacitor, a resistor and the like are arranged in the electrical box, and heat is generated in the operation process of these components, wherein some components (such as a small resistor, a small capacitor and the like) generate less heat, and other components generate more heat, for example, the IPM module generates about 60% of the total heat of the electrical box, and the IPM module belongs to components with particularly large heat. Components with a large heat generation amount, such as IPM modules, are also called high-power components.

However, the performance of components with a large heat generation amount such as IPM modules and other components with a small heat generation amount is affected by temperature.

In practice, it is found that the performance of components in the electrical box is deteriorated when the ambient temperature is high and low.

For example, an electrical box of an air conditioner is usually disposed on an outdoor unit, in which case, an outdoor environment is a working environment of the electrical box, and an outdoor temperature is an ambient temperature. In the working process, when the outdoor unit is in a high-temperature environment, in other words, when the environment temperature is high, the temperature in the electric box is overall higher, the temperature of components such as an IPM module in the electric box is too high, the performance is poor, and the operation reliability of the electric box and the whole machine is affected. When the outdoor unit is in a low-temperature environment, in other words, when the environment temperature is low, the temperature in the electric box is low as a whole, and components in the electric box, especially components with small heating value, are easy to be unable to work normally due to low temperature, and the performance is reduced, so that the operation reliability of the electric box and the whole machine is affected.

Therefore, when the ambient temperature is higher or lower, the performance of components in the electrical box can be deteriorated, and the operation reliability of the electrical box and the electrical equipment is affected.

In view of the above, the application provides an electrical box assembly, a control method thereof and electrical equipment.

Fig. 1 to 5 exemplarily show an electric device, an electric box assembly, and a control method of the electric box assembly in the present application.

Referring to fig. 1-5, in the present application, an electrical box assembly 10 includes an electrical box 1 and a temperature control system 2. The electrical box 1 is for an electrical apparatus 100 and comprises a box body 11 and an electrical device unit 16, which electrical device unit 16 is arranged in the box body 11 and comprises at least one electrical element 17. The temperature control system 2 is thermally coupled to the electrical device unit 16 and adjusts the temperature of the electrical device unit 16 based on the ambient temperature.

Based on the above setting, the temperature of the electric device unit 16 in the electric box 1 can be effectively adjusted along with the change of the environmental temperature under the action of the temperature control system 2, so that the temperature of the electric device unit 16 in the electric box 1 can be better adapted to the change of the environmental temperature, and the working environment requirement can be better met, thus, the electric device unit 16 in the electric box 1 can be effectively prevented from being degraded when the environmental temperature is higher or lower, thus being beneficial to improving the operation reliability of the electric box 1 and the electric equipment 100 and prolonging the service lives of the electric box 1 and the electric equipment 100.

It is understood that thermal coupling refers to a coupling mode capable of heat exchange, and is not limited to a mating mode in which heat exchange is performed by direct contact, but includes a mating mode in which heat exchange is performed by an intermediate heat transfer medium or an intermediate heat transfer member.

In the present application, the temperature control system 2 may adjust the temperature of the electric device unit 16 only by cooling, only by heating, or may both heat and cool, that is, the temperature control system 2 may warm and/or cool the electric device unit 16 according to the ambient temperature.

The cooling of the electrical device unit 16 is particularly suitable for the situation of higher environmental temperature, and is particularly suitable for cooling components with larger heating value such as the IPM module and other components with smaller heating value when the environmental temperature is higher, so that components with larger heating value such as the IPM module and other components with smaller heating value can have lower temperature at higher environmental temperature, and the performance is prevented from being reduced due to too high temperature.

The heating of the electric device unit 16 is particularly suitable for the condition of low ambient temperature, and is particularly suitable for heating the components with smaller heating value when the ambient temperature is low, so that the components with smaller heating value can keep higher temperature at lower ambient temperature, and the performance is prevented from being reduced due to too low temperature.

It can be seen that the temperature control system 2 heats and/or cools the electrical device unit 16 according to the ambient temperature, so as to meet different temperature adjustment requirements.

In addition, when the ambient temperature is low, the heat generation amount of some components such as the IPM module is still relatively high, and the temperature of the components is still relatively high, and in this case, the components may be cooled to reduce the temperature of the components as much as possible, so as to improve the performance of the components.

As an example of the temperature control system 2 performing temperature reduction and/or increase on the electric device unit 16 according to the ambient temperature, referring to fig. 1 to 5, in some embodiments, the electric device unit 16 includes a first element unit 12 and a second element unit 13, the first element unit 12 includes the IPM module 15, the second element unit 13 generates less heat than the first element unit 12, the temperature control system 2 performing temperature reduction and/or increase on the first element unit 12 according to the ambient temperature, and performing temperature reduction and/or increase on the second element unit 13.

In the above-mentioned solution, the first element unit 12 is the electrical element 17 with a relatively large heat value including the IPM module 15, the second element unit 13 is the set of at least one electrical element 17 with a relatively small heat value, in which case, the temperature control system 2 may cool the first element unit 12 according to the ambient temperature, and cool and/or heat the second element unit 13, so that, for the first element unit 12 with a relatively large heat value including the IPM module 15, no matter the ambient temperature is relatively high or relatively low, the temperature control system 2 only cools, so that like the IPM module 15, the components with a relatively high temperature can effectively dissipate heat when the ambient temperature is relatively high or relatively low, and for the second element unit 13 with a relatively small heat value, the temperature control system 2 may cool only when the ambient temperature is relatively high, or only when the ambient temperature is relatively low, or both when the ambient temperature is relatively high and also when the ambient temperature is relatively low, so as to improve the performance of the components with a relatively low heat value as much as possible.

In the above scheme, the temperature control system 2 implements different temperature adjustment strategies for the first element unit 12 with a larger heating value and the second element unit 13 with a smaller heating value, including the IPM module 15, which is more beneficial to improving the performance of these elements and improving the operational reliability of the electrical box 1 and the electrical equipment 100.

It is understood that the first element unit 12 may include only the IPM module 15, or may include other elements similar to the amount of heat generated by the IPM module 15 in addition to the IPM module 15, and the second element unit 13 may include all other elements except the first element 12 in the electrical box 1, or may include only a part of the elements except the first element 12 in the electrical box 1.

As an example of temperature control system 2 in the above scenario, referring to fig. 1-5, in some embodiments temperature control system 2 is configured to at least one of:

when the environmental temperature is greater than or equal to T1, the temperature control system 2 cools the first element unit 12 and the second element unit 13;

When the environmental temperature is less than T0, the temperature control system 2 respectively reduces and heats the first element unit 12 and the second element unit 13;

When the environmental temperature is greater than or equal to T0 and less than T1, the temperature control system 2 adjusts the temperature of the first element unit 12 according to the previous working state, and does not adjust the temperature of the second element unit 13;

Wherein T1 is greater than T0.

In the above scheme, when the environmental temperature is greater than or equal to T1, the temperature control system 2 cools the first element unit 12 and the second element unit 13, so that the first element unit 12 and the second element unit 13 can both be cooled when the environmental temperature is higher, so that the performance of the first element unit 12 and the second element unit 13 is prevented from being lowered due to overhigh temperature, and the first element unit 12 and the second element unit 13 can work normally when the environmental temperature is higher.

When the environmental temperature is less than T0, the temperature control system 2 cools and heats the first element unit 12 and the second element unit 13 respectively, so that the first element unit 12 and the second element unit 13 respectively lower and raise the temperature when the environmental temperature is lower, and thus, the temperature of the first element unit 12 with larger heating value can be reduced as much as possible, the performance of the first element unit 12 is prevented from being reduced due to the higher temperature, the temperature of the second element unit 13 with smaller heating value is prevented from being raised as much as possible, the performance of the second element unit 13 is prevented from being reduced due to the lower temperature, and the first element unit 12 and the second element unit 13 both have more proper temperatures when the environmental temperature is lower, so that the first element unit 12 and the second element unit 13 can work better.

In addition, when the environmental temperature is greater than or equal to T0 and less than T1, the temperature control system 2 adjusts the temperature of the first element unit 12 according to the previous operating state, and does not adjust the temperature of the second element unit 13, so that when the environmental temperature is neither too high nor too low, the temperatures of the first element unit 12 and the second element unit 13 maintain the previous operating state, which is beneficial to maintaining the stable temperature of the electrical box 1 in the corresponding environment, reducing the adjustment complexity, and simplifying the adjustment process.

Therefore, according to the scheme, the T0 and the T1 are used as the demarcation points of the temperature control system 2 by adopting different temperature regulation strategies, so that the temperature of components in the electrical box 1 can better meet the requirements of the working environment, and the operation reliability of the electrical box 1 and the electrical equipment 100 can be further effectively improved.

Wherein, to enable the temperature control system 2 to cool and warm the first element unit 12 and the second element unit 13, respectively, when the ambient temperature is less than T0, referring to fig. 1-5, in some embodiments, the temperature control system 2 transfers heat of the first element unit 12 to the second element unit 13 to cool and warm the first element unit 12 and the second element unit 13, respectively, when the ambient temperature is less than T0.

In the above-mentioned scheme, the temperature control system 2 does not cool and heat the first element unit 12 and the second element unit 13 separately, but absorbs the heat of the first element unit 12, cools the first element unit 12, and heats the second element unit 13 by using the absorbed heat of the first element unit 12, so that the heat of the first element unit 12 is cooled, that is, the heat of the second element unit 13 is raised, and the characteristic that the heat of the first element unit 12 is larger than the heat of the second element unit 13 can be fully exerted, and the heat of the first element unit 12 is reused to realize the heat of the second element unit 13, so that the first element unit 12 and the second element unit 13 can work reliably when the environmental temperature is low, and therefore, the operation reliability of the electrical box 1 and the electrical equipment 100 can be improved and the service life of the electrical box 1 and the electrical equipment 100 can be prolonged under the conditions of saving energy and reducing heat waste.

In order to achieve the temperature regulation function in the foregoing embodiments, referring to fig. 1 to 5, the temperature control system 2 includes a temperature control device 22, and the temperature control device 22 is thermally coupled to the electric device unit 16 and regulates the temperature of the electric device unit 16 by exchanging heat with the electric device unit 16.

Where the electrical device unit 16 includes the aforementioned first element unit 12 and second element unit 13, referring to fig. 1-5, the temperature control device 22 may be thermally coupled to the first element unit 12 and second element unit 13 to regulate the temperature of the first element unit 12 and second element unit 13.

In addition, the temperature control device 22 may adjust the temperature of the electric device unit 16 by exchanging heat between the electric device unit 16 and a heat transfer medium such as gas or liquid.

For example, referring to fig. 1-5, in some embodiments, the temperature control system 2 includes not only the temperature control device 22, but also a refrigerant flow path 21, the refrigerant flow path 21 being configured to be connected to the refrigerant circulation loop 20 of the electrical device 100 to introduce the refrigerant in the refrigerant circulation loop 20 into the refrigerant flow path 21, the temperature control device 22 being disposed on the refrigerant flow path 21 and being thermally coupled to the electrical device unit 16 to regulate the temperature of the electrical device unit 16 by exchanging heat between the refrigerant in the refrigerant flow path 21 and the electrical device unit 16.

Based on the above-described arrangement, the temperature control system 2 is able to adjust the temperature of the electric device unit 16 by exchanging heat between the refrigerant and the electric device unit 16. The refrigerant is an effective heat transfer medium, so that the heat transfer efficiency is high, and the flow path is conveniently controlled to accurately exchange heat, thereby being beneficial to realizing a better temperature control effect. Further, since the refrigerant originates from the refrigerant circulation circuit 20, the temperature of the refrigerant in the refrigerant circulation circuit 20 is correlated with the ambient temperature. The refrigerant from the refrigerant circulation loop 20 is utilized to exchange heat with the electric device unit 16, so that the temperature control system 2 can adjust the temperature of the electric device unit 16 according to the ambient temperature more conveniently. Meanwhile, since the refrigerant originates from the refrigerant circulation circuit 20 of the electrical equipment 100, no additional refrigerant supply source is required, and thus the structure is also relatively simple.

It can be seen that, based on the refrigerant flow path 21 and the temperature control device 22, the temperature control system 2 can efficiently and accurately adjust the temperature of the electric device unit 16 according to the environmental temperature based on a simpler structure, thus being more beneficial to improving the performance of the electric device unit 16, improving the reliability of the electric box 1 and the electric device 100, and prolonging the service lives of the electric box 1 and the electric device 100.

In the case where the temperature control system 2 includes the aforementioned refrigerant flow path 21 and the temperature control device 22, and the electric device unit 16 includes the aforementioned first and second element units 12 and 13, in order to achieve temperature adjustment of the first and second element units 12 and 13, referring to fig. 1 to 5, the temperature control device 22 is thermally coupled with the first and second element units 12 and 13 to adjust the temperatures of the first and second element units 12 and 13 by exchanging heat between the refrigerant in the refrigerant flow path 21 and the first and second element units 12 and 13.

Based on the above arrangement, the temperature control system 2 can efficiently and accurately adjust the temperatures of the first element unit 12 and the second element unit 13 by performing heat exchange between the refrigerant from the refrigerant circulation circuit 20 and the first element unit 12 and the second element unit 13, so that the temperatures of the first element unit 12 and the second element unit 13 are better matched with the working environment, thereby improving the performance of the first element unit 12 and the second element unit 13, improving the reliability of the electrical box 1 and the electrical equipment 100, and prolonging the service lives of the electrical box 1 and the electrical equipment 100.

With continued reference to fig. 1-5, in some embodiments, the refrigerant flow path 21 includes a first flow path 211, the first flow path 211 is connected to the refrigerant circulation loop 20, the temperature control device 22 is disposed on the first flow path 211 and includes a first temperature control device 221 and a second temperature control device 222, the first temperature control device 221 and the second temperature control device 222 are respectively thermally coupled to the first element unit 12 and the second element unit 13 to respectively regulate the temperature of the second element unit 13 and the first element unit 12 by respectively exchanging heat between the refrigerant in the first flow path 211 and the first element unit 12 and the second element unit 13.

In the above arrangement, since the first temperature control device 221 and the second temperature control device 222 respectively perform temperature adjustment on the first element unit 12 and the second element unit 13, the first element unit 12 and the second element unit 13 respectively have special temperature control devices, so that efficient and accurate temperature adjustment processes on the first element unit 12 and the second element unit 13 are more conveniently realized, and meanwhile, different temperature raising and lowering strategies are more conveniently and pointedly adopted on the first element unit 12 and the second element unit 13, for example, as described above, the first element unit 12 and the second element unit 13 are more conveniently cooled and warmed when the environmental temperature is lower.

1-5, In some embodiments, the second temperature control device 222 and the first temperature control device 221 are sequentially arranged along a direction in which the refrigerant flows from the refrigerant circulation circuit 20 into the first flow path 211. Based on this, along the direction that the refrigerant flows into the first flow path 211 from the refrigerant circulation loop 20, the second temperature control device 222 is located upstream of the first temperature control device 221, so that in the process that the refrigerant in the refrigerant circulation loop 20 flows through the first flow path 211, the second temperature control device 222 exchanges heat with the corresponding refrigerant before the first temperature control device 221, so that the corresponding refrigerant is convenient to take away the heat of the second element unit 13 with lower temperature and the first element unit 12 with higher temperature in sequence, and in this case, when the refrigerant exchanges heat with the second element unit 13, the refrigerant does not exchange heat with the first element unit 12 yet, the temperature is still lower, so that the heat of the second element unit 13 can be effectively taken away, the second element unit 13 is fully cooled, and the refrigerant exchanged with the second element unit 13 with lower temperature still has lower temperature, so that when the corresponding refrigerant exchanges heat with the first element unit 12 later, the corresponding refrigerant can still effectively take away the heat of the first element unit 12, and the first element unit 12 is fully cooled, therefore, the problem that the refrigerant is difficult to fully cool the first element unit 12 with high temperature can be simultaneously achieved, and the first element unit 13 is fully cooled.

In addition, first temperature control device 221 and second temperature control device 222 may take a variety of configurations.

For example, referring to fig. 1-5, as an example of the first temperature control device 221, the first temperature control device 221 includes a heat exchanging element 225, where the heat exchanging element 225 is located on the first flow path 211 and is thermally coupled to the first element unit 12 to realize heat exchange between the refrigerant flowing through the heat exchanging element 225 and the first element unit 12, and temperature-adjusting the first element unit 12. Like this, when refrigerant flows through heat exchange element 225, can carry out the heat exchange through heat exchange element 225 and first element unit 12, realize the temperature regulation to first element unit 12, and is simple and convenient, moreover, the heat exchange element 225 who sets up can cooperate with second temperature control device 222, realizes the circulation flow of refrigerant between first element unit 12 and second element unit 13, realizes the heat exchange between first element unit 12 and the second element unit 13, utilizes the heat of first element unit 12 to heat second element unit 13. Wherein the thermal coupling between the heat exchanging element 225 and the first element unit 12 may be achieved by direct contact or may also be achieved by an intermediate heat transfer medium or heat transfer member. For example, referring to fig. 1-5, in some embodiments, the heat exchanging element 225 is attached to the first element unit 12 to achieve thermal coupling between the heat exchanging element 225 and the first element unit 12. In this case, the heat exchange member 225 is directly contacted with the first element unit 12 to realize thermal coupling, so that not only is the heat exchange efficiency higher, which is advantageous for more efficiently and accurately adjusting the temperature of the first element unit 12, but also the structure is simpler because an intermediate heat transfer medium or a heat transfer member can be omitted.

As another example, referring to fig. 1 to 5, as the second temperature control device 222, the second temperature control device 222 includes a heat conducting member 223 and a fan 224, the heat conducting member 223 is located on the first flow path 211, the fan 224 is thermally coupled with the heat conducting member 223 and blows air into the case 11, so as to realize heat exchange between the refrigerant flowing through the heat conducting member 223 and the second element unit 13, and temperature adjustment is performed on the second element unit 13. Like this, when refrigerant flows through heat conduction spare 223, can carry out the heat exchange through heat conduction spare 223 and fan 224 and second component unit 13, realize the temperature regulation to second component unit 13, and is simple and convenient, moreover, the heat conduction spare 223 of setting, conveniently with first temperature control device 221 cooperation, realize the circulation flow of refrigerant between first component unit 12 and second component unit 13, accomplish the heat exchange between first component unit 12 and the second component unit 13, utilize the heat of first component unit 12 to heat second component unit 13. Wherein the thermal coupling between the fan 224 and the heat conductive member 223 may be achieved by direct contact or may also be achieved by an intermediate heat transfer medium or an intermediate heat transfer member. For example, referring to fig. 1-5, in some embodiments, the fan 224 is attached to the heat conductive member 223 to achieve thermal coupling between the fan 224 and the heat conductive member 223. In this way, the fan 224 and the heat conducting member 223 are directly contacted to realize thermal coupling, so that the heat exchange efficiency is high, the temperature of the second element unit 13 can be regulated more efficiently and accurately, and the intermediate heat transfer medium or the heat transfer component can be omitted, so that the structure is simpler. In addition, the fan 224 is adopted to realize heat exchange between the refrigerant and the second element unit 13, which has the advantages that the fan 224 blows air, which can cover the whole space in the box 11, is convenient for temperature adjustment of the scattered components in the second element unit 13, and realizes the integral adjustment of the temperature in the electrical box 1.

In addition, referring to fig. 1-5, in some embodiments, the first flow path 211 includes a first pipe 213 and a second pipe 214, the first pipe 213 is connected to the refrigerant circulation loop 20, the second pipe 214 is connected to the first temperature control device 221 and the second temperature control device 222, so that the refrigerant can circulate between the first temperature control device 221 and the second temperature control device 222 through the first pipe 213 and the second pipe 214, and the temperature control system 2 further includes a driving mechanism 23, wherein the driving mechanism 23 drives the refrigerant to circulate between the first temperature control device 221 and the second temperature control device 222, so that the heat of the first element unit 12 is transferred to the second element unit 13 by the refrigerant, and the temperature of the first element unit 12 and the temperature of the second element unit 13 are reduced.

Based on the above arrangement, the temperature control system 2 can realize the cooling of the first element unit 12 and the heating of the second element unit 13 by the circulating flow (may simply be referred to as internal circulation) of the refrigerant between the first temperature control device 221 and the second temperature control device 222, and in this case, the temperature control system 2 does not separately perform the cooling and the heating of the first element unit 12 and the second element unit 13, but uses the heat of the first element unit 12 to heat the second element unit 13, and heats the second element unit 13 while realizing the cooling of the first element unit 12, so that the characteristic that the temperature of the first element unit 12 is higher than the temperature of the second element unit 13 can be fully exerted, and the cooling of the first element unit 12 and the heating of the second element unit 13 can be simultaneously realized by recycling the heat of the first element unit 12, so that the first element unit 12 and the second element unit 13 can reliably operate when the environmental temperature is low, thereby improving the operation reliability of the electrical box 1 and the apparatus 100 and prolonging the service life of the electrical box 1 and the electrical apparatus 100 while reducing the heat waste.

The driving mechanism 23 is an important structural component for driving the refrigerant to flow in a circulation flow path (which may be referred to as an internal circulation loop) between the first temperature control device 221 and the second temperature control device 222, and provides power for the refrigerant to perform corresponding internal circulation, and may be a mechanism capable of driving the refrigerant, especially, a liquid refrigerant (the refrigerant flowing through the internal circulation loop, or even the refrigerant flowing through the temperature control device 2 is actually a liquid refrigerant) to flow, for example, a pump, and may be disposed at any position of the circulation flow path (which may be referred to as an internal circulation loop) between the first temperature control device 221 and the second temperature control device 222. As one example, the drive mechanism 23 is located on a portion of the internal circulation loop (e.g., the second line 214) that is located outside of the first temperature control device 221. As another example thereof, referring to fig. 1-5, drive mechanism 23 is located within first temperature control device 221. In this way, the drive mechanism 23 does not require additional space, and therefore, is more advantageous in terms of volume reduction.

Referring to fig. 1-5, in some embodiments, the refrigerant flow path 21 includes not only the first flow path 211, but also a second flow path 212, the second flow path 212 being connected to the refrigerant circulation circuit 20 in parallel with the first flow path 211, that is, the second flow path 212 being connected to the refrigerant circulation circuit 20 and being connected in parallel with the first flow path 211.

Based on the above arrangement, the refrigerant in the refrigerant circulation circuit 20 can be distributed between the first flow path 211 and the second flow path 212 according to the actual situation, so that the temperature adjustment process can be conveniently realized without affecting the normal operation of the refrigerant circulation circuit 20.

For example, referring to fig. 3 and 4, in the case where the ambient temperature is low (for example, the ambient temperature is lower than T0 as described above), the temperature control system 2 performs cooling and heating on the first element unit 12 and the second element unit 13, respectively, based on the internal circulation of the refrigerant, the first flow path 211 receives at most a part of the refrigerant in the refrigerant circulation circuit 20, that is, the first flow path 211 receives only a part of the refrigerant in the refrigerant circulation circuit 20, or does not receive the refrigerant in the refrigerant circulation circuit 20 at all, in which case, the second flow path 212 may receive the remaining or all of the refrigerant in the refrigerant circulation circuit 20, so that the refrigerant in the refrigerant circulation circuit 20 can normally circulate and the refrigerant circulation circuit 20 can normally operate when the temperature control system 2 normally performs cooling and heating on the first element unit 12 and the second element unit 13, respectively, through the internal circulation.

For another example, when the temperature of the electric device unit 16 is not required to be adjusted, the refrigerant in the refrigerant circulation circuit 20 can flow through the second flow path 212 instead of the first flow path 211, so as to keep the temperature of the electric device unit 16 stable while the normal operation of the refrigerant circulation circuit 20 is realized.

It can be seen that by arranging the refrigerant flow path 21 to include the first flow path 211 and the second flow path 212 connected in parallel with each other to the refrigerant circulation loop 20, the refrigerant that the first flow path 211 cannot receive is conveniently shared by the second flow path 212 according to actual situations, so as to reduce the interaction between the temperature adjustment process of the temperature control system 2 and the normal operation process of the refrigerant circulation loop 20.

1-5, In some embodiments, where the first flow path 211 includes the aforementioned first conduit 213 and second conduit 214, the second flow path 212 in parallel with the first flow path 211 is specifically in parallel with the first conduit 213. In this way, the second flow path 212 can share the refrigerant that the first flow path 211 cannot receive, and does not affect the internal circulation between the first temperature control device 221 and the second temperature control device 222, so that the temperature control system 2 is convenient to realize different temperature adjustment modes under the condition of higher and lower ambient temperature.

Referring to fig. 1-5, in some embodiments, the refrigerant flow path 21 is connected to the refrigerant circulation loop 20. In this way, the refrigerant flow path 21 is conveniently controlled to be connected or disconnected with the refrigerant circulation loop 20 according to different conditions, and how the refrigerant flow path 21 is particularly connected with the refrigerant circulation loop 20, so as to further meet different temperature regulation requirements.

For example, referring to fig. 2, in some embodiments, when the ambient temperature is high (e.g., the ambient temperature is greater than or equal to T1 as described above), the first flow path 211 and the second flow path 212 of the refrigerant flow path 21 are respectively connected to and disconnected from the refrigerant circulation loop 20, so that the refrigerant in the refrigerant circulation loop 20 flows through the temperature control device 22 on the first flow path 211 completely, and the electrical device unit 16 is fully cooled.

For another example, referring to fig. 3, in some embodiments, when the ambient temperature is low (e.g., the ambient temperature is less than T0 as described above) and the temperature of the first element unit 12 is lower than the preset value, the first flow path 211 and the second flow path 212 of the refrigerant flow path 21 are disconnected from and connected to the refrigerant circulation loop 20, respectively, so as to facilitate the internal circulation of the temperature control device 22, and the heat of the first element unit 12 is used to heat the second element unit 13.

For example, referring to fig. 4, in some embodiments, when the ambient temperature is low (e.g. the ambient temperature is less than T0 as described above) and the temperature of the first element unit 12 is greater than or equal to the preset value, the first flow path 211 and the second flow path 212 of the refrigerant flow path 21 are both communicated with the refrigerant circulation loop 20, so that the heat of the first element unit 12 is further taken away by the refrigerant in the refrigerant circulation loop 20 on the premise that the temperature control device 22 is convenient for internal circulation, and the use safety of the first element unit 12 is affected.

It can be seen that the refrigerant flow path 21 and the refrigerant circulation loop 20 are connected in an on-off manner, so that the temperature control system 2 can be conveniently switched between different working modes.

In order to realize the on-off connection between the refrigerant flow path 21 and the refrigerant circulation loop 20, referring to fig. 1-5, in some embodiments, the temperature control system 2 includes an on-off control device 24, where the on-off control device 24 is disposed on the refrigerant flow path 21 and controls the on-off connection between the refrigerant flow path 21 and the refrigerant circulation loop 20 to realize the on-off connection between the refrigerant flow path 21 and the refrigerant circulation loop 20. Based on this, the on-off control device 24 is controlled to switch between different working states, so that the on-off of the refrigerant flow path 21 between the refrigerant circulation loop 20 can be controlled, and the on-off between the refrigerant flow path 21 and the refrigerant circulation loop 20 can be automatically controlled, so that the method is simple, convenient, efficient and accurate.

As an example, referring to fig. 1-5, in some embodiments, the on-off control device 24 includes a first valve 241, where the first valve 241 is disposed at an inlet of the refrigerant flow path 21 to control on-off between the inlet of the refrigerant flow path 21 and the refrigerant circulation circuit 20. In this way, the first valve 241 can be controlled to control whether the refrigerant in the refrigerant circulation loop 20 flows into the refrigerant flow path 21, so as to conveniently meet different requirements of whether the electrical box 1 needs to perform temperature control.

Specifically, referring to fig. 1 to 5, in the case where the refrigerant flow path 21 includes the first flow path 211 and the second flow path 212, and the first flow path 211 and the second flow path 212 are connected to the refrigerant circulation circuit 20 in parallel with each other, the inlet of the refrigerant flow path 21 is the inlet of the first flow path 211 and the second flow path 212, and thus, in this case, the first valve 241 is disposed at the inlet of the refrigerant flow path 21, that is, the first valve 241 is disposed at the inlet of the first flow path 211 and the second flow path 212. In this way, the first valve 241 not only can control whether the refrigerant in the refrigerant circulation loop 20 flows into the refrigerant flow path 21, but also can further control how the refrigerant flowing into the refrigerant flow path 21 from the refrigerant circulation loop 20 is distributed between the first flow path 211 and the second flow path 212, so as to conveniently realize different temperature regulation modes under the working conditions of lower ambient temperature and higher ambient temperature, and meet different temperature regulation requirements under the working conditions of lower ambient temperature and higher ambient temperature.

In addition, referring to fig. 1-5, in some embodiments, the on-off control device 24 includes not only the first valve 241, but also the second valve 242, where the second valve 242 is disposed at the outlet of the refrigerant flow path 21 to control on-off between the outlet of the refrigerant flow path 21 and the refrigerant circulation circuit 20. In this way, under the action of the first valve 241 and the second valve 242, the on-off control device 24 can control not only the on-off of the refrigerant flow path 21 and the refrigerant circulation circuit 20 at the inlet, but also the on-off of the refrigerant flow path 21 and the refrigerant circulation circuit 20 at the outlet, so that the reliability of on-off control can be enhanced, and more reliable on-off control between the refrigerant flow path 21 and the refrigerant circulation circuit 20 can be realized.

Specifically, referring to fig. 1 to 5, in the case where the refrigerant flow path 21 includes the first flow path 211 and the second flow path 212, and the first flow path 211 and the second flow path 212 are connected to the refrigerant circulation circuit 20 in parallel with each other, the outlet of the refrigerant flow path 21 is the outlet of the first flow path 211 and the second flow path 212, and thus, in this case, the first valve 241 is disposed at the outlet of the refrigerant flow path 21, that is, the first valve 241 is disposed at the outlet of the first flow path 211 and the second flow path 212. In this way, the on-off control device 24 can reliably control the on-off of the refrigerant flow path 21 and the refrigerant circulation circuit 20 at both the inlet and the outlet of the refrigerant flow path 21.

It will be appreciated that the specific configuration of the first valve 241 and the second valve 242 is not limited, and may be a single valve (e.g., a four-way valve) or a combination of valves. As an example of employing a combination of valves, the first valve 241 and/or the second valve 242 includes a three-way valve having a first port connected to the cooling circulation circuit 20 and a second port and a third port connected to the first port and connected to the first flow path 211 and the second flow path 212, respectively, and an on-off valve provided between the second port and the first port, and the on-off valve controls the on-off between the second port and the first port to control whether or not the first flow path 211 communicates with the refrigerant circulation circuit 20, thereby satisfying

In the foregoing embodiments, the detecting means may be provided to detect the ambient temperature, so that the temperature control system 2 adjusts the temperature of the electrical device unit 16 according to the ambient temperature in real time, thereby better meeting the working environment requirements and more effectively improving the operational reliability of the electrical box 1 and the electrical apparatus 100.

As an example, referring to fig. 1-5, the electric device unit 16 includes a main control board 14, and the main control board 14 detects an ambient temperature and is in signal connection with the temperature control system 2 to control the temperature control system 2 to adjust the temperature of the electric device unit 16 according to the ambient temperature. At this time, the main control board 14 in the electrical box 1 is used as a detection component for detecting the ambient temperature, and also controls the temperature control system 2 to work, so that the electrical box is richer in function and high in integration level, and because the detection component is not required to be additionally arranged to detect the ambient temperature, and the controller is not required to be additionally arranged to control the temperature control system 2 to work, the electrical box is simpler in structure, lower in cost and less in occupied space. Moreover, the main control board 14 for detecting the ambient temperature is utilized to control the temperature control system 2, so that the temperature control system 2 can adjust the temperature of the electric device unit 16 according to the ambient temperature more conveniently. There are various ways to enable the main control board 14 to realize the function of detecting the ambient temperature, including but not limited to using the temperature sensing bulb and the temperature sensor existing or added on the main control board 14 to detect the ambient temperature.

Based on the electrical box assembly 10 of the foregoing embodiments, the present application also provides an electrical apparatus 100. Referring to fig. 1, a corresponding electrical device 100 includes an electrical box assembly 10. Also, referring to fig. 1, in some embodiments, the electrical device 100 is an air conditioner 101. At this time, the electrical apparatus 100 has the refrigerant circulation loop 20, so that the temperature control system 2 of the electrical box assembly 10 can more conveniently perform temperature adjustment based on the refrigerant, and the operation reliability of the air conditioner 101 is improved.

In addition, based on the electrical box assembly 10 of the foregoing embodiments, the present application also provides a control method. Referring to fig. 2-5, the corresponding control method includes:

detecting an ambient temperature;

based on the ambient temperature, the temperature control system 2 is controlled to operate to regulate the temperature of the electrical device unit 16.

Based on the above scheme, the temperature of the electric device unit 16 in the electric box 1 can be better adapted to the environmental temperature change, the requirement of the working environment can be better met, the electric device unit 16 in the electric box 1 is prevented from being deteriorated when the environmental temperature is higher or lower, and the operation reliability of the electric box 1 and the electric equipment 100 is further improved.

2-5, In some embodiments, where the electrical device unit 16 includes the aforementioned first element unit 12 and second element unit 13, controlling the operation of the temperature control system 2 to adjust the temperature of the electrical device unit 16 based on the ambient temperature includes at least one of:

When the ambient temperature is greater than or equal to T1, the temperature control system 2 is controlled to take away the heat of the first element unit 12 and the second element unit 13 by utilizing the refrigerant so as to cool the first element unit 12 and the second element unit 13;

When the ambient temperature is less than T0, the temperature control system 2 is controlled to transfer the heat of the first element unit 12 to the second element unit 13 by utilizing the refrigerant so as to respectively reduce and raise the temperature of the first element unit 12 and the second element unit 13;

when the ambient temperature is greater than or equal to T0 and less than T1, the temperature control system 2 is controlled to perform temperature adjustment on the first element unit 12 according to the previous operation state, and not to perform temperature adjustment on the second element unit 13.

According to the scheme, the T0 and the T1 are used as the demarcation points of the temperature control system 2 by adopting different temperature regulation strategies, so that the temperature of components in the electrical box 1 can better meet the requirements of working environments, and the operation reliability of the electrical box 1 and the electrical equipment 100 can be further effectively improved.

Specifically, referring to fig. 2-5, in some embodiments, when the ambient temperature is less than T0, controlling the temperature control system 2 to transfer heat of the first element unit 12 to the second element unit 13 using the refrigerant to respectively cool and heat the first element unit 12 and the second element unit 13 includes:

When the ambient temperature is less than T0 and the temperature of the first element unit 12 is less than a preset value, the temperature control system 2 is controlled to transfer heat of the first element unit 12 to the second element unit 13 by using the refrigerant to lower and raise the temperature of the first element unit 12 and the second element unit 13, respectively, and/or,

When the ambient temperature is less than T0 and the temperature of the first element unit 12 is greater than or equal to the preset value, the temperature control system 2 is controlled to transfer the heat of the first element unit 12 to the second element unit 13 by using the refrigerant, so as to respectively cool and heat the first element unit 12 and the second element unit 13, and control the refrigerant in the refrigerant circulation loop 20 of the electrical equipment 100 to take away the heat of the first element unit 12 and cool the first element unit 12.

In the above-mentioned scheme, the preset value may be used as a safety threshold of the first element unit 12, and may be the protection temperature Tmax of the first element unit 12, or may be less than the protection temperature Tmax of the first element unit 12, which is the difference between the protection temperature Tmax of the first element unit 12 and the set value, so as to further improve the working safety of the first element unit 12.

According to the scheme, under the working condition that the ambient temperature is less than T0, whether the temperature of the first element unit 12 reaches the preset value is further distinguished, and different temperature adjustment strategies are adopted, so that the temperature of the first element unit 12 is controlled to be lower than the preset value, and the working reliability and safety of the first element unit 12 are improved. When the ambient temperature is less than T0 and the temperature of the first element unit 12 is lower than a preset value, the first element unit 12 transfers heat to the second element unit 13 while the temperature of the first element unit 12 is higher than the second element unit 13, but still within a safe range, so that the cooling requirement of the first element unit 12 and the heating requirement of the second element unit 13 can be met, the temperature control system 2 is controlled to only perform internal circulation of the refrigerant, the heat of the first element unit 12 is transferred to the second element unit 13 by utilizing the refrigerant, the first element unit 12 is cooled, the characteristics that the temperature of the first element unit 12 is higher than the second element unit 13 can be fully utilized, the cooling of the first element unit 12 and the heating of the second element unit 13 can be effectively realized under the condition of saving energy and reducing heat waste, and when the temperature of the first element unit 12 is higher than or equal to the preset value, the temperature of the first element unit 12 is higher than or equal to the safe range, the temperature of the first element unit 12 is exceeded, the heat of the first element unit 12 can be easily transferred to the first element unit 12 by utilizing the first element unit 12, the heat of the first element unit 12 can be more fully utilized, the heat of the first element unit 12 can be more fully brought into the cooling system, and the cooling requirement of the first element unit 12 can be more fully brought into the cooling system by the first element unit 12, and the heat of the refrigerant can be more fully cooled by the first element unit 12, and the heat can be more fully brought into the condition by the cooling system 12, and the first element unit 20.

More specifically, referring to fig. 3-5, in some embodiments, controlling the refrigerant in the refrigerant circulation circuit 20 of the electrical device 100 to remove heat from the first element unit 12 includes:

The first pipeline 213 of the temperature control system 2 is communicated with the refrigerant circulation loop 20, so that the refrigerant in the refrigerant circulation loop 20 flows back to the refrigerant circulation loop 20 after flowing through the first pipeline 213, thereby taking away the heat of the first element unit 12 and cooling the first element unit 12.

Based on the above scheme, the refrigerant in the refrigerant circulation loop 20 can be introduced into the temperature control system 2 to further take away the heat of the first element unit 12, cool the first element unit 12, so as to quickly reduce the temperature of the first element unit 12 to a suitable range, and the refrigerant introduced into the temperature control system 2 to cool the first element unit 12 can flow back to the refrigerant circulation loop 20 via the first pipeline 213, so that the influence on the refrigerant circulation loop 20 is small, and the refrigerant circulation loop 20 can work normally.

In addition, referring to fig. 3 to 5, in some embodiments, in the process of controlling the refrigerant in the refrigerant circulation loop 20 to take away the heat of the first element unit 12 and cooling the first element unit 12, if the variation of the temperature of the first element unit 12 within the preset time is smaller than the design value, the refrigerant in the refrigerant circulation loop 20 stops taking away the heat of the first element unit 12.

In the above-mentioned scheme, the change amount of the temperature of the first element unit 12 in the preset time is smaller than the design value, which can indicate that the temperature of the first element unit 12 has been reduced to a certain extent, and the refrigerant of the refrigerant circulation loop 20 is continuously introduced to dissipate heat, so that the effect is not obvious any more, in this case, the refrigerant introduced into the refrigerant circulation loop 20 can be stopped, and the first element unit 12 is cooled, so that in the corresponding case, the heat is still transferred from the first element unit 12 to the second element unit 13 only through the internal circulation of the refrigerant, and the first element unit 12 is cooled, so that the control process is simplified, the influence on the refrigerant circulation loop 20 is reduced, and the energy consumption of the system can be reduced.

Referring to fig. 3-5, in some embodiments, controlling temperature control system 2 to transfer heat of first element unit 12 to second element unit 13 using a refrigerant to cool and warm first element unit 12 and second element unit 13, respectively, includes:

The driving mechanism 23 of the temperature control system 2 is controlled to be started to drive the refrigerant to circulate between the first temperature control device 221 and the second temperature control device 222 of the temperature control system 2 so as to transfer the heat of the first element unit 12 to the second element unit 13 by utilizing the refrigerant, and the temperature of the first element unit 12 and the second element unit 13 is respectively reduced and increased.

Based on the above-mentioned scheme, the temperature control system 2 can be conveniently controlled to realize the circulating flow (which may be simply referred to as internal circulation) of the refrigerant between the first temperature control device 221 and the second temperature control device 222, and the heat of the first element unit 12 is utilized to heat the second element unit 13.

In addition, referring to fig. 3 to 5, in some embodiments, when the temperature control system 2 is controlled to transfer heat of the first element unit 12 to the second element unit 13 by using the refrigerant to lower and raise the temperature of the first element unit 12 and the second element unit 13, the second flow path 212 of the temperature control system 2 is also controlled to be communicated with the refrigerant circulation loop 20 of the electrical apparatus 100, so that the refrigerant in the refrigerant circulation loop 20 flows back to the refrigerant circulation loop 20 after flowing through the second flow path 212. In this way, under the corresponding working condition, the second flow path 212 shares the refrigerant which cannot be received by the first flow path 211, so that the refrigerant in the refrigerant circulation loop 20 can normally circulate and the refrigerant circulation loop 20 can normally work under the condition that the temperature control system 2 normally passes through the internal circulation to cool and warm the first element unit 12 and the second element unit 13 respectively.

Referring to fig. 3-5, in some embodiments, controlling temperature control system 2 to remove heat from first element unit 12 and second element unit 13 using a coolant to cool first element unit 12 and second element unit 13 includes:

the first flow path 211 of the temperature control system 2 is controlled to be communicated with the refrigerant circulation loop 20 of the electrical equipment 100, so that the refrigerant in the refrigerant circulation loop 20 flows through the temperature control device 22 on the first flow path 211 to take away heat of the first element unit 12 and the second element unit 13 and cool the first element unit 12 and the second element unit 13.

According to the scheme, when the ambient temperature is greater than or equal to T1, the refrigerant of the refrigerant circulation loop 20 is introduced into the first flow path 211 of the temperature control system 2, the characteristic that the temperature of the refrigerant in the refrigerant circulation loop 20 is lower under corresponding working conditions can be utilized to sufficiently cool the first element unit 12 and the second element unit 13, the performance of the first element unit 12 and the second element unit 13 under corresponding working conditions is effectively improved, the operation reliability of the electrical box 1 and the electrical equipment 100 is improved, and the service lives of the electrical box 1 and the electrical equipment 100 are prolonged.

In addition, referring to fig. 3 to fig. 5, in some embodiments, when the first flow path 211 of the temperature control system 2 is controlled to be in communication with the refrigerant circulation loop 20 of the electrical apparatus 100, so that the refrigerant in the refrigerant circulation loop 20 flows through the temperature control device 22 on the first flow path 211 to take away heat of the first element unit 12 and the second element unit 13, and when the temperature of the first element unit 12 and the second element unit 13 is reduced, the second flow path 212 of the temperature control system 2 is also controlled to be disconnected. In this way, under the corresponding working condition, the refrigerant in the refrigerant circulation loop 20 does not flow through the second flow path 212, but flows through the temperature control device 22 entirely, so that the heat of the first element unit 12 and the second element unit 13 can be taken away sufficiently, and a better cooling effect can be achieved.

The application will be further described with reference to the embodiments shown in fig. 1-5.

As shown in fig. 1 to 5, in this embodiment, the electrical apparatus 100 is an air conditioner 101 that includes not only the refrigerant circulation circuit 20 but also the electrical box assembly 10.

The refrigerant circulation loop 20 is used for realizing refrigeration and heating functions through refrigerant circulation. Although not shown, it is understood that the refrigerant circulation circuit 20 is provided with a compressor, an outdoor heat exchanger, an indoor heat exchanger, a throttle element, and the like. In this embodiment, the refrigerant circulation circuit 20 performs a cooling mode when the ambient temperature is greater than or equal to T1, and performs a heating mode when the ambient temperature is less than T0.

The electrical box assembly 10 includes an electrical box 1 and a temperature control system 2.

The electrical box 1 is used for controlling the refrigerant circulation circuit 20 to work, is arranged on the outdoor unit, and comprises a box body 11 and an electrical device unit 16 arranged in the box body 11. The electric device unit 16 includes a first element unit 12 and a second element unit 13. The first element unit 12 is an IPM module 15. The IPM module 15 is used for controlling the operation of the compressor, and belongs to high-power components and parts, and the heat generation is serious. The second component unit 13 includes all components in the case 11 except the IPM module 15, such as a main control board 14 and small-sized components such as resistors. The heat generation amount of each component in the second component unit 13 is smaller than that of the IPM module 15. During operation of the air conditioner 101, whether during cooling or heating, the temperature of the second element unit 13 is always lower than the temperature of the first element unit 12, and the temperatures of the first element unit 12 and the second element unit 13 are always higher than the temperature of the refrigerant in the refrigerant circulation circuit 20.

In this embodiment, the main control board 14 is used to detect the outdoor temperature (i.e., the ambient temperature) and the temperature of the IPM module 15, and control the operation of the components of the air conditioner 101. The main control board 14 is in signal connection with the on-off control device 24 and the driving mechanism 23 to realize signal connection with the temperature control system 2, so as to control the temperature control system 2 to switch between different modes according to the environmental temperature change, and realize different temperature regulation processes of the electrical box 1.

The temperature control system 2 is used for adjusting the temperature of the electrical box 1, so that the temperature in the electrical box 1 meets the requirement of the working environment, and the operation reliability of the electrical box 1 and the air conditioner 101 is improved. As shown in fig. 1 to 4, in this embodiment, the temperature control system 2 includes a refrigerant flow path 21, a temperature control device 22, a driving mechanism 23, and an on-off control device 24. The refrigerant flow path 21 includes a first flow path 211 and a second flow path 212, and the first flow path 211 includes a first pipe 213 and a second pipe 214. Temperature control device 22 includes a first temperature control device 221 and a second temperature control device 222, and first temperature control device 221 includes a heat exchanging element 225 and second temperature control device 222 includes a heat conducting element 223 and a fan 224. The drive mechanism 23 is a pump that is disposed within the heat exchange member 225. The on-off control device 24 includes a first valve 241 and a second valve 242.

As can be seen from fig. 1 to 4, in this embodiment, the inlet and outlet of the first pipe 213 are connected to the refrigerant circulation circuit 20 through the first valve 241 and the second valve 242, respectively, so that the first pipe 213 can be connected to or disconnected from the refrigerant circulation circuit 20 under the control of the first valve 241 and the second valve 242, and when the first pipe 213 is connected to the refrigerant circulation circuit 20, the refrigerant in the refrigerant circulation circuit 20 can flow into the first pipe 213 and flow back to the refrigerant circulation circuit 20 after flowing through the first pipe 213.

The inlet and outlet of the second flow path 212 are connected to a first valve 241 and a second valve 242, respectively. As such, the second flow path 212 is connected to the refrigerant circulation circuit 20 in parallel with the first pipe 213, and the second flow path 212 can be connected to or disconnected from the refrigerant circulation circuit 20 under the control of the first valve 241 and the second valve 242, and when the second flow path 212 is connected to the refrigerant circulation circuit 20, the refrigerant in the refrigerant circulation circuit 20 can flow into the second flow path 212 and flow back to the refrigerant circulation circuit 20 after flowing through the second flow path 212. The first valve 241 and the second valve 242 are electromagnetic valves, so as to be matched with the main control board 14 conveniently, and realize automatic control of on-off of a flow path.

The heat conducting member 223 and the heat exchanging member 225 are disposed on the first pipeline 213, and are sequentially disposed along the direction in which the refrigerant flows into the first pipeline 213 from the refrigerant circulation circuit 20, so that the heat conducting member 223 is located upstream of the heat exchanging member 225 along the direction in which the refrigerant flows into the first pipeline 213 from the refrigerant circulation circuit 20, and the refrigerant flowing into the first pipeline 213 from the refrigerant circulation circuit 20 can sequentially flow through the heat conducting member 223 and the heat exchanging member 225. The heat exchanging member 225 is specifically a liquid-cooled heat sink, and is attached to the IPM module 15 serving as the first element unit 12 to dissipate heat from the IPM module 15. The heat conductive member 223 is specifically a heat conductive sheet, and is attached to a fan 224 blowing air into the case 11, and the fan 224 is attached to an end of the heat conductive member 223 facing the inside of the case 11, so as to radiate or heat the second element unit 13 by blowing cold air or hot air into the case 11.

The second pipe 214 is connected between the heat exchanging member 225 and the heat conducting member 223, and is connected in parallel with a portion of the first pipe 213 between the heat exchanging member 225 and the heat conducting member 223. In this way, an internal circulation loop can be formed between the heat exchanging element 225 and the heat conducting element 223 based on the portion of the first pipe 213 between the heat exchanging element 225 and the heat conducting element 223 and the second pipe 214, so that when the driving mechanism 23 on the corresponding internal circulation loop is started, the refrigerant can circulate between the heat exchanging element 225 and the heat conducting element 223 to transfer the heat of the first element unit 12 to the second element unit 13 by the refrigerant, thereby realizing the cooling of the first element unit 12 and the heating of the second element unit 13.

Based on the above structural arrangement, the electrical box assembly 10 of this embodiment can realize the following four modes of operation:

(1) When the main control board 14 detects that the ambient temperature is equal to or higher than T1, the refrigerant circulation circuit 20 is in a cooling state, and the temperature of the refrigerant in the refrigerant circulation circuit 20 is low when the refrigerant flows through the outdoor unit, in this case, as shown in fig. 3 and 5, the main control board 14 sends signals to the first valve 241 and the second valve 242, so that the first valve 241 and the second valve 242 operate, the first pipeline 213 is communicated with the refrigerant circulation circuit 20, and the second pipeline 212 is disconnected from the refrigerant circulation circuit 20, at this time, the driving mechanism 23 does not operate, and the refrigerant in the refrigerant circulation circuit 20 returns to the refrigerant circulation circuit 20 after flowing through the heat conducting member 223 and the heat exchanging member 225 on the first pipeline 213. In the corresponding process, the heat conducting member 223 exchanges heat with the refrigerant in preference to the heat exchanging member 225, at this time, the temperature of the heat conducting member 223 is the same as the temperature of the refrigerant, the fan blows cool air into the box 11 to dissipate heat of the second element unit 13 in the box 11, and at the same time, when the refrigerant flows through the heat exchanging member 225, the heat of the IPM module 15 is taken away to dissipate heat of the IPM module 15. In this way, the IPM module 15 and the second element unit 13 are both cooled by the refrigerant in the refrigerant circulation loop 20, the electrical box 1 is not in a high temperature environment, and each element in the electrical box 1 works normally.

(2) When the main control board 14 detects that the ambient temperature < T0, the refrigerant circulation circuit 20 is in a heating state, the temperature of the refrigerant in the refrigerant circulation circuit 20 is higher when flowing through the outdoor unit, but still lower than the temperature of the IPM module 15 and the second element unit 13, in this case, if the main control board 14 detects that the temperature of the IPM module 15 is less than the preset value (Tmax-10) ° C, as shown in fig. 4 and 5, the main control board 14 sends a signal to the first valve 241, the second valve 242 and the driving mechanism 23, so that the driving mechanism 23 is started, the first valve 241 and the second valve 242 operate, the first pipeline 213 is disconnected from the refrigerant circulation circuit 20, and the second flow path 212 is connected to the refrigerant circulation circuit 20, at this time, the refrigerant in the refrigerant circulation circuit 20 completely flows back to the refrigerant circulation circuit 20 through the second flow path 212, and an internal circulation circuit is formed between the heat conducting member 223 and the heat exchanging member 225, at this time, the heat of the IPM module 15 is led into the internal through the heat exchanging member 225, so that the internal temperature of the heat conducting member 223 is raised, and the temperature of the heat conducting member 223 is also affected by the second element 11, and the heat conducting member 223 is raised by the temperature of the heat conducting member 11, and the heat conducting member 224 is blown by the heat of the second element 11. In the corresponding process, since the temperature of the air blown by the fan 224 is lower than the temperature of the IPM module 15, the fan 224 blows warm air into the electrical box 1, and heats the second element unit 13, and at the same time, the temperature of the IPM module 15 is not increased, and the temperature of the IPM module 15 is reduced under the action of internal circulation, so as to realize heat dissipation.

(3) When the main control board 14 detects that the ambient temperature < T0, if the refrigerant circulation circuit 20 in the heating state is in the maximum capacity heating state, the temperature of the IPM module 15 continuously rises, in this case, if the main control board 14 detects that the temperature of the IPM module 15 reaches the preset value, the main control board 14 controls the first valve 241 and the second valve 242 to communicate the second flow path 212 with the refrigerant circulation circuit 20, and simultaneously further communicates the first pipe 213 with the refrigerant circulation circuit 20 to introduce new refrigerant into the internal circulation, at this time, the internal circulation heat is carried out by the refrigerant introduced into the first pipe 213 by the refrigerant circulation circuit 20, and enters the refrigerant circulation circuit 20, and the temperature of the IPM module 15 continuously decreases, and in the corresponding process, the main control board 14 continuously monitors the temperature of the IPM module 15, and if the temperature change of the IPM module 15 is less than the design value (for example, 3 ℃) within the preset time (for example), the first valve 241 and the second valve 242 switch off the first pipe 213 again, so that the system 2 returns to the internal circulation state described in the above (2).

(4) When the main control board 14 detects that the ambient temperature is within T0-T1, the main control board 14 controls the first valve 241 and the second valve 242 to maintain the previous working state (i.e. the on-off condition of the first valve 241 and the second valve 242 is the same as the previous working state, the previous working state is the same as how the first valve 241 and the second valve 242 are on-off, how the first valve 241 and the second valve 242 are still on-off, and no change is performed, where it is not easy to understand that the previous working state refers to a working state before the current control action is performed, specifically, refers to a working state of the first valve 241 and the second valve 242 before the main control board 14 sends signals to the first valve 241 and the second valve 242 each time), and the fan 224 does not work, so that the temperature control system 2 performs temperature adjustment on the first element unit 12 according to the previous working state, and does not perform temperature adjustment on the second element unit 13. The temperature of the second element unit 13 is not adjusted, and the fan 224 does not blow warm air into the electrical box 1 when the temperature is at a higher point between T0 and T1, and does not blow cool air into the electrical box 1 when the temperature is at a lower point, so as to maintain the internal temperature of the electrical box 1 at a steady state.

It will be appreciated that parameters such as T0, T1, tmax, etc. may be adjusted according to the actual application environment of the electrical box 1.

It can be seen that, according to the electrical box assembly 10 of this embodiment, the on-off control device 24 and the driving mechanism 23 can be controlled to work according to the environmental temperature control, different loop modes are switched, the temperature in the electrical box 1 is adjusted, and the temperature of the electrical box 1 at different environmental temperatures is adjustable, so that the IPM module 15 and other components in the electrical box 1 can have proper temperature no matter the environmental temperature is higher or lower, thereby improving the performance of the components in the electrical box 1, improving the operation reliability of the electrical box 1 and the air conditioner 101, and prolonging the service lives of the electrical box 1 and the air conditioner 101.

The foregoing description of the exemplary embodiments of the application is not intended to limit the application to the particular embodiments disclosed, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the application.

Claims (22)

1. An electrical box assembly (10), comprising:

An electrical box (1) for an electrical device (100) and comprising a box body (11) and an electrical device unit (16), said electrical device unit (16) being arranged in said box body (11) and comprising at least one electrical element (17), and

A temperature control system (2) thermally coupled to the electrical device unit (16) and adjusting the temperature of the electrical device unit (16) in dependence on the ambient temperature.

2. The electrical box assembly (10) according to claim 1, wherein the temperature control system (2) is adapted to cool and/or warm the electrical device unit (16) in dependence of the ambient temperature.

3. The electrical box assembly (10) according to claim 2, wherein the electrical device unit (16) comprises a first element unit (12) and a second element unit (13), the first element unit (12) comprises an IPM module (15), the second element unit (13) has a smaller heating value than the first element unit (12), the temperature control system (2) cools the first element unit (12) and/or heats the second element unit (13) according to the ambient temperature.

4. An electrical box assembly (10) according to claim 3, wherein the temperature control system (2) is configured to at least one of:

The temperature control system (2) cools the first element unit (12) and the second element unit (13) when the ambient temperature is greater than or equal to T1;

When the environmental temperature is less than T0, the temperature control system (2) respectively cools and heats the first element unit (12) and the second element unit (13);

when the environmental temperature is greater than or equal to T0 and less than T1, the temperature control system (2) adjusts the temperature of the first element unit (12) according to the previous working state, and does not adjust the temperature of the second element unit (13);

Wherein T1 is greater than T0.

5. The electrical box assembly (10) according to claim 4, wherein the temperature control system (2) transfers heat of the first element unit (12) to the second element unit (13) to cool and warm the first element unit (12) and the second element unit (13), respectively, when the ambient temperature is less than T0.

6. The electrical box assembly (10) according to any one of claims 1-5, wherein the temperature control system (2) comprises a refrigerant flow path (21) and a temperature control device (22), the refrigerant flow path (21) is used for being connected with a refrigerant circulation loop (20) of the electrical equipment (100) so as to guide a refrigerant in the refrigerant circulation loop (20) into the refrigerant flow path (21), and the temperature control device (22) is arranged on the refrigerant flow path (21) and is thermally coupled with the electrical equipment unit (16) so as to adjust the temperature of the electrical equipment unit (16) by performing heat exchange on the refrigerant in the refrigerant flow path (21) and the electrical equipment unit (16).

7. The electrical box assembly (10) according to claim 6, wherein the temperature control device (22) is thermally coupled with a first element unit (12) of the electrical device unit (16) including an IPM module (15) and a second element unit (13) having a smaller heating value than the first element unit (12) to regulate the temperature of the first element unit (12) and the second element unit (13) by exchanging heat of the refrigerant in the refrigerant flow path (21) with the first element unit (12) and the second element unit (13).

8. The electrical box assembly (10) according to claim 7, wherein the refrigerant flow path (21) comprises a first flow path (211), the first flow path (211) is connected to the refrigerant circulation loop (20), the temperature control device (22) is disposed on the first flow path (211) and comprises a first temperature control device (221) and a second temperature control device (222), and the first temperature control device (221) and the second temperature control device (222) are respectively thermally coupled with the first element unit (12) and the second element unit (13) so as to respectively adjust the temperatures of the second element unit (13) and the first element unit (12) by respectively performing heat exchange on the refrigerant in the first flow path (211) and the first element unit (12) and the second element unit (13).

9. The electrical box assembly (10) according to claim 8, wherein the first temperature control device (221) comprises a heat exchanging element (225), the heat exchanging element (225) is located on the first flow path (211) and is thermally coupled with the first element unit (12) to enable heat exchange between the refrigerant flowing through the heat exchanging element (225) and the first element unit (12) to perform temperature adjustment on the first element unit (12), and/or the second temperature control device (222) comprises a heat conducting element (223) and a fan (224), the heat conducting element (223) is located on the first flow path (211), and the fan (224) is thermally coupled with the heat conducting element (223) and blows air into the box body (11) to enable heat exchange between the refrigerant flowing through the heat conducting element (223) and the second element unit (13) to perform temperature adjustment on the second element unit (13).

10. The electrical box assembly (10) according to claim 9, wherein the heat exchanging member (225) is attached to the first element unit (12) to achieve thermal coupling between the heat exchanging member (225) and the first element unit (12), and/or wherein the fan (224) is attached to the heat conducting member (223) to achieve thermal coupling between the fan (224) and the heat conducting member (223).

11. The electrical box assembly (10) according to claim 8, wherein the second temperature control device (222) and the first temperature control device (221) are arranged in sequence along a direction in which the refrigerant flows from the refrigerant circulation circuit (20) into the first flow path (211).

12. The electrical box assembly (10) according to claim 8, wherein the first flow path (211) comprises a first pipe (213) and a second pipe (214), the first pipe (213) is connected to the refrigerant circulation circuit (20), the second pipe (214) is connected to the first temperature control device (221) and the second temperature control device (222), so that the refrigerant can circulate between the first temperature control device (221) and the second temperature control device (222) through the first pipe (213) and the second pipe (214), the temperature control system (2) further comprises a driving mechanism (23), the driving mechanism (23) drives the refrigerant to circulate between the first temperature control device (221) and the second temperature control device (222) to transfer heat of the first element unit (12) to the second element unit (13) by the refrigerant, cooling of the first element unit (12) and heating of the second element unit (13) are achieved, or the driving mechanism (23) drives the refrigerant to circulate between the first temperature control device (221) and the second flow path (212) further comprises the second flow path (212) in parallel.

13. The electrical box assembly (10) according to claim 12, wherein the driving mechanism (23) is located within the first temperature control device (221) and/or the second flow path (212) is in parallel with the first flow path (211) first conduit (213).

14. The electrical box assembly (10) according to claim 6, wherein the refrigerant flow path (21) is connected to the refrigerant circulation circuit (20) in an on-off manner.

15. The electrical box assembly (10) according to claim 14, wherein the temperature control system (2) comprises an on-off control device (24), the on-off control device (24) is arranged on the refrigerant flow path (21) and controls on-off between the refrigerant flow path (21) and the refrigerant circulation loop (20) so as to realize on-off connection between the refrigerant flow path (21) and the refrigerant circulation loop (20).

16. The electrical box assembly (10) according to claim 15, wherein the on-off control device (24) comprises a first valve (241), the first valve (241) being disposed at an inlet of the refrigerant flow path (21) to control on-off between the inlet of the refrigerant flow path (21) and the refrigerant circulation circuit (20).

17. The electrical box assembly (10) according to claim 16, wherein the refrigerant flow path (21) comprises a first flow path (211) and a second flow path (212), the first flow path (211) and the second flow path (212) being connected to the refrigerant circulation circuit (20) in parallel with each other, the first valve (241) being provided at inlets of the first flow path (211) and the second flow path (212) to control on-off between inlets of the first flow path (211) and the second flow path (212) and the refrigerant circulation circuit (20).

18. The electrical box assembly (10) according to claim 16, wherein the on-off device further comprises a second valve (242), the second valve (242) being disposed at an outlet of the refrigerant flow path (21) to control on-off between the outlet of the refrigerant flow path (21) and the refrigerant circulation circuit (20).

19. The electrical box assembly (10) according to claim 18, wherein the refrigerant flow path (21) comprises a first flow path (211) and a second flow path (212), the first flow path (211) and the second flow path (212) being connected to the refrigerant circulation circuit (20) in parallel with each other, the second valve (242) being provided at outlets of the first flow path (211) and the second flow path (212) to control on-off between the outlets of the first flow path (211) and the second flow path (212) and the refrigerant circulation circuit (20).

20. The electrical box assembly (10) according to any one of claims 1-5, wherein the electrical device unit (16) comprises a main control board (14), and the main control board (14) detects the ambient temperature and is in signal connection with the temperature control system (2) to control the temperature control system (2) to adjust the temperature of the electrical device unit (16) according to the ambient temperature.

21. An electrical device (100) comprising an electrical box assembly (10) according to any one of claims 1-20.

22. The electrical device (100) according to claim 21, wherein the electrical device (100) is an air conditioner (101).