DE102019119884A1 - A fluid circuit system regulating the temperature of a plurality of different operating modules - Google Patents

Abstract

In a fluid circulation system (100) with a fluid that can be circulated between a cold side (110) and a warm side (120) by means of at least one feed pump (101, 102), the efficiency of a plurality of heat- or cold-producing operating modules (150, 151, 152, 153) is achieved by the fact that the plurality of heat-generating operating modules (150, 151, 152, 153) to be cooled, or alternatively, cold-producing operating modules (150, 151, 152, 153) that are to be cooled and that are to be heated, are arranged between the cold side (110) and the warm side (120) so that there is a parallel flow ) is selectable bidirectional flow through the fluid.

Description

The invention relates to a fluid circuit system with a fluid that can be circulated between a cold side and a warm side by means of at least one feed pump.

Fluid circuit systems of the type mentioned at the beginning are known in the prior art for temperature control of operating modules that are either to be heated or to be cooled. The known fluid circuit systems all have the disadvantage that simultaneous heating of operating modules to be heated to a predetermined extent for the purpose of maximizing efficiency and cooling of operating modules to be cooled to a predetermined extent for the purpose of maximizing efficiency cannot be carried out.

The object of the invention is therefore to create a fluid circuit system which enables heating of a plurality of operating modules to be heated to a predetermined extent for the purpose of maximizing efficiency with simultaneous possible cooling of a plurality of operating modules to be cooled to a predetermined extent for the purpose of maximizing efficiency.

For a fluid circulation system of the type mentioned at the outset, this object is achieved according to the invention for a first embodiment, according to which a first plurality of operating modules to be regularly cooled and a second plurality of operating modules to be heated regularly is provided in that a first plurality of operating modules that can be flown through in parallel between the cold side and the warm side Heat-generating operating modules to be cooled can be flowed through by the fluid for the purpose of cooling in a first flow direction leading from the cold side to the warm side, and a second plurality of cold-producing operating modules to be heated, arranged in parallel between the cold side and the warm side, can be flowed through by the fluid for the purpose of heating can be flowed through in a second flow direction, opposite to the first flow direction, leading from the warm side to the cold side.

For a fluid circuit system of the type mentioned at the outset, this object is achieved according to the invention for the second embodiment, according to which a given plurality of operating modules, depending on the operating state and specification of corresponding measuring sensors, is possibly to be heated or possibly to be cooled in order to ensure maximum operating efficiency, in that a A plurality of heat-generating operating modules to be cooled, or alternatively, cold-producing operating modules to be heated, arranged parallel to flow through between the cold side and the warm side, through which fluid can selectively flow bidirectionally.

Preferred embodiments of the invention are the subject matter of the subclaims, the elements of which act in the sense of a further improvement of the approach to the solution of the object on which the invention is based.

In the fluid circuit system according to the invention according to the first embodiment, with the help of the combination of features, a first plurality of heat-generating operating modules to be cooled, which are arranged in parallel between the cold side and the warm side, can be flown through by the fluid in a first flow direction leading from the cold side to the warm side for the purpose of cooling can be flowed through and a second plurality of cold-producing operating modules to be heated, arranged in parallel between the cold side and the warm side, can be flown through by the fluid for the purpose of heating in a second flow direction opposite the first flow direction, leading from the warm side to the cold side, with comparatively simple means an optimization of the operating temperature of the operating modules concerned is achieved.

In the fluid circuit system according to the invention according to the second embodiment, with the aid of the combination of features that a plurality of heat-generating operating modules to be cooled, or alternatively to be heated, cold-producing operating modules arranged in parallel between the cold side and the warm side, the fluid can selectively flow through bi-directionally, still comparatively simple means solved the complex task of optimizing the operating temperature of the temperature-sensitive operating modules concerned.

According to a first preferred embodiment of the fluid circuit system according to the invention according to the first embodiment it is provided that upstream of each heat-generating operating module to be cooled, a control valve is connected upstream or downstream in order to regulate the amount of fluid flowing from the cold side to the warm side.

According to another preferred embodiment of the fluid circuit system according to the invention according to the first embodiment, it is provided that a control valve is connected upstream or downstream of each cold-producing operating module to be heated in order to regulate the amount of fluid flowing from the warm side to the cold side.

According to a first preferred embodiment of the fluid circuit system according to the invention according to the second embodiment, it is provided that each operating module, in the event of cooling downstream of the cold side, upstream of an operating module, is preceded by a cold-side 3-way switchover valve and downstream of an operating module, a warm-side 3-way switchover valve is connected downstream, with the In the event of heating of a relevant operating module, the warm-side 3-way switch valve is connected upstream of the relevant operating module downstream of the warm side and upstream of the operating module and the cold-side 3-way switch valve is connected downstream of the operating module.

A cold-side 3-way switch valve is preferably connected between an output of the cold side and an input of each operating module, which can be activated in the event of a cooling of the operating module concerned in order to introduce the fluid from the cold side into the operating module, and between the output of the operating module and a warm side 3-way switch valve is connected to the inlet of the warm side, which can be activated in the event of cooling of the operating module concerned in order to introduce the fluid downstream of the operating module into the inlet of the warm side.

In the same way, a control valve is preferably connected between the output of the cold-side 3-way switch valve and the input of the warm-side 3-way switch valve, which can be activated in the case of cooling of a relevant operating module in order to control the temperature of the operating module adjust the fluid passing through the operating module to a predetermined level.

The warm side 3-way changeover valve is preferably connected between an output of the warm side and an input of each operating module and can be activated in the case of heating of the relevant operating module in order to introduce the fluid from the warm side into the operating module, with the cold side 3-way changeover valve between is connected to the output of the operating module and the input of the cold side and can be activated in the case of heating of the operating module concerned in order to introduce the fluid downstream of the operating module into the input of the cold side.

The control valve connected between the output of the 3-way switch valve on the warm side and the input of the 3-way switch valve on the cold side can also be activated in the case of heating of the operating module concerned in order to increase the amount of fluid passing through the operating module for the purpose of regulating the temperature of the operating module to set a predetermined amount.

According to a further preferred embodiment of the fluid circuit system according to the invention according to the second embodiment, a first bus line is laid downstream of the cold side and upstream of the cold side 3-way switch valve of each operating module, via which the input of each cold side 3-way switch valve is connected to the output of the cold side and via which the fluid can be introduced into the inlet of the cold-side switchover valve.

In a corresponding manner, a second bus line is preferably placed downstream of the warm side and upstream of the warm side 3-way switch valve of each operating module, via which the input of each warm side 3-way switch valve is connected to the output of the warm side and via which the fluid enters the input of the heat-side switching valve can be introduced.

Both embodiments of the circulatory system according to the invention have in common that the fluid is formed by a liquid, as a rule, but not necessarily, water.

Furthermore, both embodiments of the circulatory system according to the invention have in common that the warm side is preferably formed by a heat reservoir and the cold side is preferably formed by a cold reservoir, the heat reservoir and the cold reservoir being formed by the warm side or cold side of a refrigeration machine. The heat reservoir is preferably provided with a buffer store and the cold reservoir with a buffer store.

It is also common to both embodiments of the circulatory system according to the invention that at least one operating module is provided with a temperature sensor in order to determine whether this operating module has an operating temperature that is too high or too low compared to an optimal temperature that requires maximum operating efficiency, the temperature sensor having a control device for activating and Control of the relevant control valves and, depending on the embodiment, also connected to the relevant 3-way switchover valves.

The fluid circuit system according to the invention can be used in particular for mobile work machines in which different vehicle components such as batteries, heating / air conditioning units, motors, transmissions, vehicle electronics, drive trains or the like are to be temperature controlled.

• 1 eine erste bevorzugte Ausführungsform des erfindungsgemäßen Fluidkreislaufsystems in Form eines schematisierten Diagramms;
• 2 eine zweite bevorzugte Ausführungsform des erfindungsgemäßen Fluidkreislaufsystems in Form eines schematisierten Diagramms,
• 3 Eine dritte bevorzugte Ausführungsform des erfindungsgemäßen Fluidkreislaufsystems in Form eines schematisierten Diagramms.

The fluid circuit system according to the invention is explained below with reference to a preferred embodiment which is shown in the figures of the drawing. Show in it:

• 1 a first preferred embodiment of the fluid circuit system according to the invention in the form of a schematic diagram;
• 2 a second preferred embodiment of the fluid circuit system according to the invention in the form of a schematic diagram,
• 3 A third preferred embodiment of the fluid circuit system according to the invention in the form of a schematic diagram.

This in 1 illustrated fluid circuit system according to the invention 100 contains one by means of two feed pumps 101 , 102 between a warm side 120 and a cold side 110 circulable fluid, with a first plurality between the cold side 110 and the warm side 120 Heat-generating operating modules to be cooled and arranged in parallel so that there is a flow 132 , 134, 136 from the fluid in for the purpose of cooling in a first, from the cold side 110 to the warm side 120 leading flow direction is flowable through and a second plurality between the cold side 110 and the warm side 120 Cold-producing operating modules that are to be heated and are arranged in parallel so that there is a flow 131 , 133, 135 from the fluid for the purpose of heating in a second, the first flow direction opposite, from the warm side 120 to the cold side 110 leading flow direction is flowable.

Upstream of each heat generating operating module to be cooled 132 , 134, 136 is a control valve 141 upstream to the amount of the from the cold side 110 to the warm side 120 to regulate flowing fluid, and upstream of each cold-producing operating module to be heated 131 , 133, 135 is a control valve 142 upstream to the amount of from the warm side 120 to the cold side 110 to regulate flowing fluid.

This in 2 illustrated fluid circuit system according to the invention 100 contains one by means of two feed pumps 101 , 102 between a warm side 120 and a cold side 110 circulable fluid, with a plurality between the cold side 110 and the warm side 120 Heat-generating operating modules to be cooled and arranged in parallel so that there is a flow 150 , 151 , 152 , 153 or alternatively, operating modules that produce warming and cold 150 , 151 , 152 , 153 is selectable bidirectional flow through the fluid.

Every operating module 150 , 151 , 152 , 153 is downstream of the cold side in the case of cooling 110 upstream of an operating module 150 , 151 , 152 , 153 a 3-way switch valve on the cold side 161 upstream and downstream of an operating module 150 , 151 , 152 , 153 a 3-way switch valve on the heat side 162 downstream, in the case of heating a relevant operating module 150 , 151 , 152 , 153 the 3-way switch valve on the heating side 162 the relevant operating module 150 , 151 , 152 , 153 downstream of the warm side 120 and upstream of the operating module 150 , 151 , 152 , 153 is connected upstream and downstream of the operating module 150 , 151 , 152 , 153 the cold side 3-way switch valve 161 is downstream.

Between an exit on the cold side 110 and an input of each operating module 150 , 151 , 152 , 153 is a 3-way switch valve on the cold side 161 switched, in the case of cooling of the operating module concerned 150 , 151 , 152 , 153 can be activated to the fluid from the cold side 110 into the operating module 150 , 151 , 152 , 153 initiate, and between the output of the operating module 150 , 151 , 152 , 153 and the entrance on the warm side 120 a 3-way switch valve on the heat side 162 is switched, in the case of cooling of the operating module concerned 150 , 151 , 152 , 153 can be activated to the fluid downstream of the operating module 150 , 151 , 152 , 153 in the entrance on the warm side 120 initiate.

Between the outlet of the cold side 3-way switch valve 161 and the input of the 3-way switch valve on the heating side 162 is a control valve 141 , 142 switched on, in the case of cooling of a relevant operating module 150 , 151 , 152 , 153 can be activated in order to regulate the temperature of the operating module 150 , 151 , 152 , 153 the amount of the operating module 150 , 151 , 152 , 153 adjusting the passing fluid to a predetermined level.

The 3-way switch valve on the heating side 162 is between an exit on the warm side 120 and an input of each operating module 150 , 151 , 152 , 153 switched and in the case of heating of the operating module concerned 150 , 151 , 152 , 153 activatable to the fluid from the warm side 120 into the operating module 150 , 151 , 152 , 153 to initiate, whereby the cold side 3-way switch valve 161 between the output of the operating module 150 , 151 , 152 , 153 and the entrance of the cold side 110 is switched and in the case of heating of the operating module concerned 150 , 151 , 152 , 153 can be activated to the fluid downstream of the operating module 150 , 151 , 152 , 153 in the entrance of the cold side 110 initiate.

That between the output of the 3-way switch valve on the heating side 162 and the input of the 3-way switch valve on the cold side 161 switched control valve 141 , 142 is in the case of heating of the operating module concerned 150 , 151 , 152 , 153 can be activated for the purpose of regulating the temperature of the operating module 150 , 151 , 152 , 153 the amount of the operating module 150 , 151 , 152 , 153 adjusting the passing fluid to a predetermined level.

Downstream of the cold side 110 and upstream of the cold side 3-way switch valve 161 of each operating module 150 , 151 , 152 , 153 is a first bus line 181 , 181 ' placed, via which the input of each cold-side 3-way switch valve 161 with the exit of the cold side 110 is connected and through which the fluid enters the inlet of the cold-side switchover valve 161 can be initiated.

The same is true downstream of the warm side 120 and upstream of the 3-way switching valve on the heating side 162 of each operating module 150 , 151 , 152 , 153 a second bus line 182 , 182 ' placed, via which the input of each 3-way switch valve on the heating side 162 with the exit of the warm side 120 is connected and through which the fluid enters the inlet of the heat-side switching valve 162 can be initiated.

Every operational module 150 , 151 , 152 , 153 is provided with a temperature sensor to determine whether this operating module 150 , 151 , 152 , 153 has an operating temperature that is too high or too low compared to an optimum temperature that causes maximum operating efficiency, the temperature sensor having a control device for activating and regulating both the relevant 3-way switchover valves 161 , 162 as well as the relevant control valves 141 , 142 connected is.

Both of the above embodiments have in common that the fluid is formed by a liquid, usually water.

Furthermore is the warm side 120 formed by a heat reservoir and the cold side 110 formed by a cold reservoir, wherein the heat reservoir and the cold reservoir are formed by the warm side and cold side of a refrigeration machine. The cold reservoir is with a buffer tank 171 and the heat reservoir with a buffer storage tank 172 Mistake.

This in 3 illustrated fluid circuit system according to the invention 100 corresponds to in 2 fluid circuit system shown and contains an operating module to be cooled 132 and an operating module to be heated 131 .

The exemplary embodiments of the invention explained above only serve the purpose of a better understanding of the teaching according to the invention given by the claims, which as such are not restricted by the exemplary embodiments.

List of reference symbols

100

Fluid circuit system

101, 102

Feed pump

110

Cold side

120

Warm side

131

cold-producing operating modules

132

heat-generating operating modules

141, 142

Control valves

150, 151, 152, 153

Operating modules

161, 162

Changeover valves

171, 172

Buffer storage

181, 181 '; 182, 182 '

Bus lines

Claims (10)

Fluid circuit system (100) with a fluid that can be circulated between a cold side (110) and a warm side (120) by means of at least one feed pump (101, 102), characterized in that a first plurality between the cold side (110) and the warm side (120) is parallel Heat-generating operating modules (132) that are arranged to be cooled and that are arranged to flow through can be flowed through by the fluid for the purpose of cooling in a first flow direction leading from the cold side (110) to the warm side (120) and a second plurality between the cold side (110) and the warm side (120) parallel flow through which is to be heated, cold-producing operating modules (131) can be flowed through by the fluid for the purpose of heating in a second flow direction opposite to the first flow direction, from the warm side (120) to the cold side (110). Fluid circulation system (100) according to Claim 1 , characterized in that upstream of each heat-generating operating module (132) to be cooled, a control valve (141) is connected upstream or downstream in order to control the amount of fluid flowing from the cold side (110) to the warm side (120). Fluid circulation system (100) according to Claim 1 , characterized in that a control valve (142) is connected upstream or downstream of each cold-producing operating module (131, 133, 135) to be heated, in order to regulate the amount of fluid flowing from the warm side (120) to the cold side (110). Fluid circuit system (100) with a fluid that can be circulated between a cold side (110) and a warm side (120) by means of at least one feed pump (101, 102), characterized in that a plurality of parallel flow between the cold side (110) and the warm side (120) arranged to be cooled, heat-generating operating modules (150, 151, 152, 153) or alternatively to be heated, cold-producing operating modules (150, 151, 152, 153) through which fluid can selectively flow bidirectionally. Fluid circulation system (100) according to Claim 4 , characterized in that each operating module (150, 151, 152, 153) in the case of cooling downstream of the cold side (110) upstream of an operating module (150, 151, 152, 153) is preceded by a cold-side 3-way switch valve (161) and downstream of an operating module (150, 151, 152, 153), a 3-way switch valve (162) on the heat side is connected, with the 3-way switch valve (162) on the heat side in the case of heating of a relevant operating module (150, 151, 152, 153) the relevant operating module (150, 151, 152, 153) is connected upstream of the hot side (120) and upstream of the operating module (150, 151, 152, 153) and downstream of the operating module (150, 151, 152, 153) the cold side 3- Way switching valve (161) is connected downstream. Fluid circuit system (100) according to one of the Claims 4 or 5 , characterized in that a cold-side 3-way switch valve (161) is connected between an output of the cold side (110) and an input of each operating module (150, 151, 152, 153) which, in the event of cooling of the operating module (150 , 151, 152, 153) can be activated to introduce the fluid from the cold side (110) into the operating module (150, 151, 152, 153), and between the output of the operating module (150, 151, 152, 153) and the At the inlet of the warm side (120), a warm-side 3-way switch valve (162) is connected, which can be activated in the case of cooling of the operating module (150, 151, 152, 153) in order to divert the fluid downstream of the operating module (150, 151, 152 , 153) to be introduced into the inlet of the warm side (120). Fluid circulation system (100) according to Claim 6 , characterized in that a control valve (141, 142) is connected between the output of the cold-side 3-way switchover valve (161) and the input of the warm-side 3-way switchover valve (162), which in the case of cooling of a relevant operating module (150, 151, 152, 153) can be activated in order to adjust the amount of fluid passing through the operating module (150, 151, 152, 153) to a predetermined level for the purpose of regulating the temperature of the operating module (150, 151, 152, 153). Fluid circuit system (100) according to one of the Claims 6 or 7th , characterized in that the 3-way switch valve (162) on the warm side is connected between an output of the warm side (120) and an input of each operating module (150, 151, 152, 153) and in the case of heating of the operating module concerned (150, 151, 152, 153) can be activated in order to introduce the fluid from the warm side (120) into the operating module (150, 151, 152, 153), the cold-side 3-way switch valve (161) between the outlet of the operating module (150, 151, 152, 153) and the input of the cold side (110) and can be activated in the event of heating of the operating module (150, 151, 152, 153) in order to circulate the fluid downstream of the operating module (150, 151, 152, 153 ) to be introduced into the inlet of the cold side (110). Fluid circulation system (100) according to Claim 8 , characterized in that a control valve (141, 142) is connected between the output of the heating-side 3-way switch valve (162) and the input of the cold-side 3-way switch valve (161), which in the case of heating of the operating module (150 , 151, 152, 153) can be activated in order to adjust the amount of fluid passing through the operating module (150, 151, 152, 153) to a predetermined level for the purpose of regulating the temperature of the operating module (150, 151, 152, 153). Fluid circuit system (100) according to one of the Claims 4 to 9 , characterized in that downstream of the cold side (110) and upstream of the cold side 3-way switch valve (161) of each operating module (150, 151, 152, 153) a first bus line (181, 181 ') is laid, via which the input of each cold-side 3-way switch valve (161) is connected to the output of the cold side (110) and via which the fluid can be introduced into the input of the cold-side switch valve (161).

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