Heat exchange device

A cooling system for cooling oil of a gearbox, comprising

• a gearbox,
• a heat exchange device, which comprises:
• a first heat exchanger,
• a mounting plate, and
• a connecting block,
• wherein the mounting plate and the connecting block are located at two sides, opposite to each other, of the first heat exchanger, the first heat exchanger comprises a plurality of first plates, a plurality of second plates, and an end plate and a bottom plate located at the two sides of the first heat exchanger,
• wherein each of the first plates and an adjacent second plate form a first flow passage and a second flow passage, the first flow passage and the second flow passage are not communicated, the first heat exchanger comprises a heat exchange core, the heat exchange core comprises the bottom plate, the end plate, the first plates and the second plates which are fixedly mounted, the mounting plate and the end plate are fixedly mounted, the connecting block and the bottom plate are fixedly mounted, the mounting plate comprises at least one communicating hole, the connecting block comprises a first connecting channel and a second connecting channel, and the first connecting channel is in communication with the first flow passage, and
• the heat exchange device further comprises a connecting passage running through the first heat exchanger, the connecting passage is in communication with the communicating hole and the second connecting channel, and the connecting passage is not in communication with the second flow passage,
• a second heat exchanger, and
• a third heat exchanger,
• wherein the heat exchange device further comprises a thermostatic valve component, the thermostatic valve component comprises a first inlet passage, a first outlet passage and a second outlet passage, and, the gearbox is fixedly mounted to the mounting plate by a screw, an outlet port of the gearbox is in communication with the first flow passage of the first heat exchanger, an inlet port of the gearbox is in communication with the connecting passage via the communicating hole, the first outlet passage of the thermostatic valve component is in communication with the connecting passage via the second connecting channel, and the first inlet passage of the thermostatic valve component is in communication with the first flow passage via the first connecting channel, the second outlet passage of the thermostatic valve component is in communication with an inlet of the second heat exchanger, and an outlet of the second heat exchanger is in communication with an inlet of the gearbox.

A cooling system for cooling oil of a gearbox, comprising:

• a gearbox,
• a heat exchange device, which comprises
• a first heat exchanger,
• a mounting plate, and
• a connecting block,
• wherein the mounting plate and the connecting block are located at two sides, opposite to each other, of the first heat exchanger, the first heat exchanger comprises a plurality of first plates, a plurality of second plates, and an end plate and a bottom plate located at the two sides of the first heat exchanger,
• wherein each of the first plates and an adjacent second plate form a first flow passage and a second flow passage, the first flow passage and the second flow passage are not communicated, the first heat exchanger comprises a heat exchange core, the heat exchange core comprises the bottom plate, the end plate, the first plates and the second plates which are fixedly mounted, the mounting plate and the end plate are fixedly mounted, the connecting block and the bottom plate are fixedly mounted, the mounting plate comprises at least one communicating hole, the connecting block comprises a first connecting channel and a second connecting channel, and the first connecting channel is in communication with the first flow passage, and
• the heat exchange device further comprises a connecting passage running through the first heat exchanger, the connecting passage is in communication with the communicating hole and the second connecting channel, and the connecting passage is not in communication with the second flow passage,
• a second heat exchanger, and
• a third heat exchanger,
• wherein, the heat exchange device further comprises a thermostatic valve component, the thermostatic valve component comprises a first inlet passage, a first outlet passage, a second outlet passage and a second inlet passage, the second inlet passage is in communication with the first outlet passage, the gearbox is fixedly mounted to the mounting plate by a screw, an outlet port of the gearbox is in communication with the first flow passage of the first heat exchanger, an inlet port of the gearbox is in communication with the connecting passage via the communicating hole, the first outlet passage of the thermostatic valve component is in communication with the connecting passage via the second connecting channel, and the first inlet passage of the thermostatic valve component is in communication with the first flow passage via the first connecting channel, the second outlet passage of the thermostatic valve component is in communication with an inlet of the second heat exchanger, and the second inlet passage of the thermostatic valve component is in communication with an outlet of the second heat exchanger, and the outlet of the second heat exchanger is in communication with an inlet of the gearbox via the second inlet passage, the first outlet passage, the second connecting channel, the connecting passage and the communicating hole.