A heat exchange device for heating and cooling a working medium

Abstract

A heat exchange device for heating and cooling a working fluid, comprising a left core group, a right core group and a three-way valve, wherein the three-way valve comprises a working fluid total inlet, a left working fluid inlet and a right working fluid inlet, the left core group comprises a mutually independent heating agent flow channel and a left working fluid flow channel, the two ends of the heating agent flow channel are respectively connected to the heating agent inlet and the heating agent outlet, the two ends of the left working fluid flow channel are respectively connected to the left working fluid inlet and the left working fluid outlet, the right core group comprises a mutually independent refrigerant flow channel and a right working fluid flow channel, the two ends of the refrigerant flow channel are respectively connected to the refrigerant inlet and the refrigerant outlet, and the two ends of the right working fluid flow channel are respectively connected to the right working fluid inlet and the right working fluid outlet. This design not only has both cooling and heating functions, and has a high heat exchange efficiency, but also has a good control effect on the heat exchange amount, and has a high degree of intelligence.

Description

Technical Field

[0001] The invention relates to a heat exchange device, belongs to the field of pure electric vehicles, and in particular to a heat exchange device for heating and cooling a working medium. Background Art

[0002] At present, pure electric vehicles are developing faster and faster, and the thermal management system of batteries is indispensable. As an important component in the thermal management system, the heat exchange device of the battery working fluid is particularly important.

[0003] The existing heat exchange device for battery working fluid has a single structure, heating and cooling are completed in different devices, the heat exchange efficiency is low and the heat exchange amount is difficult to control, and the working fluid flow resistance is large. Therefore, it is necessary to develop a heat exchange device with high heat exchange efficiency, controllable heat exchange amount and small flow resistance.

[0004] The information disclosed in this background technology section is only intended to increase the understanding of the overall background of this patent application, and should not be regarded as acknowledging or suggesting in any form that the information constitutes the prior art already known to ordinary technicians in this field. Summary of the invention

[0005] The purpose of the present invention is to overcome the defects and problems of low heat exchange efficiency in the prior art and to provide a heat exchange device for heating and cooling a working medium with high heat exchange efficiency.

[0006] To achieve the above objectives, the technical solution of the present invention is: a heat exchange device for heating and cooling a working medium, comprising a left core group, a right core group and a three-way valve, wherein the three-way valve comprises a working medium main inlet and a left working medium inlet and a right working medium inlet communicating therewith;

[0007] The left core group includes a heating agent flow channel and a left working fluid flow channel which are independent of each other, the two ends of the heating agent flow channel are respectively connected to the heating agent inlet and the heating agent outlet, and the two ends of the left working fluid flow channel are respectively connected to the left working fluid inlet and the left working fluid outlet;

[0008] The right core group includes a refrigerant flow channel and a right working fluid flow channel which are independent of each other. The two ends of the refrigerant flow channel are respectively connected to the refrigerant inlet and the refrigerant outlet. The two ends of the right working fluid flow channel are respectively connected to the right working fluid inlet and the right working fluid outlet.

[0009] The three-way valve is an electronic three-way water valve, which includes a vertical pipe, a horizontal pipe and a control signal interface. The top of the vertical pipe is provided with a total working fluid inlet, the bottom end of the vertical pipe is vertically connected with the top of the middle part of the horizontal pipe, the bottom of the middle part of the horizontal pipe is respectively connected with the top of the lower left straight pipe and the lower right straight pipe, the bottom end of the lower left straight pipe is provided with a left working fluid inlet, the bottom end of the lower right straight pipe is provided with a right working fluid inlet, and the control signal interface is connected with the horizontal pipe.

[0010] The heat exchange device also includes a left outer tube, a middle outer tube and a right outer tube. The two ends of the left outer tube are respectively provided with a total working fluid outlet and a left working fluid interface. The left working fluid interface is correspondingly connected to the left working fluid outlet. The middle part of the left outer tube is connected to one end of the middle outer tube, the other end of the middle outer tube is connected to one end of the right outer tube, and the other end of the right outer tube is correspondingly connected to the right working fluid outlet.

[0011] The heat exchange device further comprises a refrigeration box, one end of which is provided with a refrigerant external inlet and a refrigerant external outlet, and the other end of the refrigeration box is provided with a refrigerant inlet;

[0012] The refrigerant external inlet is connected to the refrigerant inlet via the refrigeration box, and the refrigerant external outlet is connected to the refrigerant outlet via the refrigeration box and the refrigeration pipe in sequence.

[0013] The refrigerant inlet is connected to the outlet of the electromagnetic expansion valve via a refrigeration box and a refrigerant external inlet in sequence; the refrigerant outlet is connected to the compressor via a refrigeration pipe, a refrigeration box and a refrigerant external outlet in sequence.

[0014] The heat exchange device also includes a hollow connecting box, a left working fluid inlet pipe and a right working fluid inlet pipe passing through the top surface of the connecting box, the top end of the left working fluid inlet pipe is connected to the left working fluid inlet, the bottom end of the left working fluid inlet pipe passes through the box cavity and is connected to the end of the left working fluid flow channel, the top end of the right working fluid inlet pipe is connected to the right working fluid inlet, and the bottom end of the right working fluid inlet pipe passes through the box cavity and is connected to the end of the right working fluid flow channel.

[0015] The left core group includes a left inlet cover plate, a left outlet cover plate and a left lamination group sandwiched therebetween, the left inlet cover plate is provided with a left cover plate through hole, the left outlet cover plate is provided with a left working fluid outlet, a heating agent inlet and a heating agent outlet, a heating agent flow channel and a left working fluid flow channel are provided in the left lamination group, and the left working fluid inlet pipe is connected to the left working fluid outlet after passing through the left cover plate through hole and the left working fluid flow channel in sequence;

[0016] The right core group includes a right inlet cover plate, a right outlet cover plate and a right lamination group sandwiched therebetween. The right inlet cover plate is provided with a right cover plate through hole. The right outlet cover plate is provided with a right working fluid outlet, a refrigerant inlet and a refrigerant outlet. The right lamination group is provided with a refrigerant flow channel and a right working fluid flow channel. The right working fluid inlet pipe is connected to the right working fluid outlet after passing through the right cover plate through hole and the right working fluid flow channel in sequence.

[0017] The structures of the left lamination group and the right lamination group are consistent, and both include alternately stacked A chips and B chips. The number of A chips and B chips is at least two, and an inter-chip liquid storage cavity is sandwiched between adjacent stacked A chips and B chips; the four corners of the A chips and B chips are sequentially provided with working fluid upper holes, agent upper holes, working fluid lower holes and agent lower holes; in the stacked A chips and B chips, the connection structure between the working fluid upper holes, agent upper holes, working fluid lower holes and agent lower holes is any one of the following:

[0018] The first type is that the two working fluid upper holes are connected to form a working fluid upper sealing tube, the two working fluid lower holes are sealed, the agent upper hole and the agent lower hole are both conductive, and the agent upper hole and the agent lower hole are both connected to the inter-plate liquid storage cavity;

[0019] The second type is that the two working fluid lower holes are connected to form a working fluid lower sealing tube, the two working fluid upper holes are sealed, the agent upper hole and the agent lower hole are both connected, and the agent upper hole and the agent lower hole are both connected to the inter-plate liquid storage cavity;

[0020] The third type is that the upper working hole on chip A is sealed, and the lower working hole is connected, and the upper working hole on chip B is connected, and the lower working hole is sealed, or the upper working hole on chip A is connected, and the lower working hole is sealed, and the upper working hole on chip B is sealed, and the lower working hole is connected, so as to form two kinds of working medium oblique flow channels, and the working medium oblique flow channels are connected with the inter-chip liquid storage cavity; while forming the working medium oblique flow channel, the connection structure of the upper working hole and the lower working hole is any one of the following:

[0021] The two upper holes are connected to form an upper sealed tube, and the two lower holes are sealed; or, the two lower holes are connected to form a lower sealed tube, and the two upper holes are sealed; or, the two upper holes are connected to form an upper sealed tube, and the two lower holes are connected to form a lower sealed tube;

[0022] In the left lamination group, all the upper working fluid sealing tubes, lower working fluid sealing tubes, and working fluid oblique flow channels are interconnected to form the left working fluid flow channel, and all the upper agent sealing tubes and lower agent sealing tubes are interconnected through the inter-plate liquid storage cavity to form the heating agent flow channel. Of the two adjacent inter-plate liquid storage cavities, one is only connected to the heating agent flow channel, and the other is only connected to the left working fluid flow channel;

[0023] In the right lamination group, all the upper working fluid sealed tubes, lower working fluid sealed tubes, and working fluid inclined flow channels are interconnected to form the right working fluid flow channel, and all the upper agent sealed tubes and lower agent sealed tubes are communicated with each other through the inter-plate liquid storage cavity to form the refrigerant flow channel. Of the two adjacent inter-plate liquid storage cavities, one is only connected to the refrigerant flow channel, and the other is only connected to the right working fluid flow channel.

[0024] Of the two working fluid upper holes in the working fluid upper sealing tube, one is an outward convex structure and the other is an inward concave structure, and the two working fluid upper holes are inserted and connected;

[0025] Of the two working fluid lower holes in the working fluid lower sealing tube, one is an outward convex structure and the other is an inward concave structure, and the two working fluid lower holes are inserted and connected;

[0026] Of the two upper holes in the upper sealing tube, one is an outward convex structure and the other is an inward concave structure, and the two upper holes are inserted and connected;

[0027] Of the two lower-dose holes in the lower-dose sealing tube, one is an outwardly convex structure and the other is an inwardly concave structure, and the two lower-dose holes are inserted and connected.

[0028] The A chip and the B chip are both provided with an inward-recessed protrusion, the two ends of the inward-recessed protrusion are a convex tip portion and a concave portion respectively, and the maximum width of the convex tip portion is greater than the maximum width of the concave portion;

[0029] In the stacked A chip and B chip, the protruding portion on the A chip and the recessed portion on the B chip are correspondingly inserted and matched.

[0030] Compared with the prior art, the present invention has the following beneficial effects:

[0031] 1. A heat exchange device for heating and cooling a working fluid of the present invention comprises a left core group, a right core group and a three-way valve, wherein the three-way valve comprises a working fluid total inlet, a left working fluid inlet and a right working fluid inlet, and a heating agent flow channel and a left working fluid flow channel are arranged in the left core group, and a refrigerant flow channel and a right working fluid flow channel are arranged in the right core group. In application, the left working fluid inlet is responsible for inputting the working fluid into the left working fluid flow channel, the heating agent flow channel is responsible for the flow of the heating agent, the right working fluid inlet is responsible for inputting the working fluid into the right working fluid flow channel, and the refrigerant flow channel is responsible for the flow of the refrigerant, so that the design has not only a working fluid heating function, but also a working fluid cooling function, and the setting can be performed simultaneously for left heating and right cooling to improve the heat exchange efficiency of the working fluid and improve the controllability of the heat exchange amount; in addition, the design combines the two functions of cooling and heating in one device, realizes an integrated design, and compared with the prior art, reduces the occupied space of the equipment and reduces the cost. Therefore, the present invention not only has the functions of cooling and heating, and has a high heat exchange efficiency, but also reduces the occupied space and reduces the manufacturing and installation costs.

[0032] 2. In a heat exchange device for heating and cooling a working fluid of the present invention, when the working fluid is subjected to heat exchange operation, there are three working conditions, which are as follows: only the total working fluid inlet and the left working fluid inlet are opened to input the working fluid into the left core group so that the working fluid and the heating agent are subjected to heat exchange; only the total working fluid inlet and the right working fluid inlet are opened to input the working fluid into the right core group so that the working fluid and the refrigerant are subjected to heat exchange; the total working fluid inlet, the left working fluid inlet, and the right working fluid inlet are fully opened, but the opening amplitude of the left working fluid inlet and the right working fluid inlet is controlled to control the flow rate of the working fluid flowing into the left working fluid inlet and the right working fluid inlet, adjust the proportion of the working fluid entering the left and right core groups, and use part of the working fluid for heating and part of the working fluid for cooling, thereby improving the control effect of the heat exchange amount, achieving a higher control accuracy, and widening the control range. Therefore, the controllability of the present invention is relatively strong, and the control effect of the heat exchange amount is relatively good.

[0033] 3. In a heat exchange device for heating and cooling a working medium of the present invention, the three-way valve is an electronic three-way water valve, which includes a vertical pipe, a horizontal pipe and a control signal interface. When used, a control signal is sent to the electronic three-way water valve through the control signal interface to control the opening and closing degree of the left working medium inlet and the right working medium inlet to perform preset heating or cooling, which is not only highly accurate but also easy to operate, realizing intelligent and contactless operation. Therefore, the present invention has a high degree of intelligence.

[0034] 4. In a heat exchange device for heating and cooling a working medium of the present invention, the left and right core groups both include an inlet cover plate, an outlet cover plate and a stack of laminations sandwiched therebetween, and the stack of laminations includes alternately stacked A chips and B chips, and the fitting spacing between the two chips is very small. In addition, the liquid flow channel between the A chip and the B chip includes four types of upper sealing tubes for the working medium, lower sealing tubes for the working medium, upper sealing tubes for the agent, and upper sealing tubes for the agent, all of which are direct docking between holes (preferably concave and convex insertion connections), which not only improves the sealing effect and has a stronger positioning function, but also reduces the length of the sealing tube and reduces the spacing between the chips. It can be seen that no matter the stacking distance of the chips or the length of the sealing tube between the chips, the shorter spacing between the A chip and the B chip, that is, the shorter width of the inter-chip liquid storage cavity, can be ensured, thereby having a lower flow resistance, thereby ensuring that when the working medium, heating agent or refrigerant enters the inter-chip liquid storage cavity, it can quickly fill the inter-chip liquid storage cavity and improve the heat exchange efficiency. Therefore, the working medium flow resistance in the present invention is small and the heat exchange efficiency is high.

[0035] 5. In a heat exchange device for heating and cooling a working fluid of the present invention, a left outer tube, a middle outer tube and a right outer tube are additionally provided, wherein the two ends of the left outer tube are respectively provided with a total working fluid outlet and a left working fluid interface, the left working fluid interface is correspondingly connected to the left working fluid outlet, the middle of the left outer tube is connected to one end of the middle outer tube, the other end of the middle outer tube is connected to one end of the right outer tube, and the other end of the right outer tube is correspondingly connected to the right working fluid outlet. This design enables the working fluid after cooling and heating to flow out from the same outlet, i.e., the total working fluid outlet, thereby improving the utilization rate of the equipment, reducing the number and cost of parts, and facilitating use, management and maintenance. Therefore, the utilization rate of parts of the present invention is relatively high. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is a three-dimensional structural schematic diagram of the present invention.

[0037] Figure 2 yes Figure 1 Schematic diagram of the three-dimensional structure when viewed from behind.

[0038] Figure 3 yes Figure 2 Schematic diagram of the three-dimensional structure when viewed from above.

[0039] Figure 4 It is an exploded view of the present invention.

[0040] Figure 5 yes Figure 1 Schematic diagram of the docking of the middle left lamination group.

[0041] Figure 6 yes Figure 1 Schematic diagram of the docking of the middle right lamination group.

[0042] Figure 7 yes Figure 4 A magnified schematic diagram of the top of the chip in the middle.

[0043] Figure 8 yes Figure 4 A magnified schematic diagram of the top of chip B.

[0044] In the figure: heating agent inlet 1, heating agent outlet 11, refrigerant inlet 2, refrigerant outlet 21, three-way valve 3, working fluid total inlet 31, left working fluid inlet 32, left working fluid outlet 321, right working fluid inlet 33, right working fluid outlet 331, vertical pipe 34, horizontal straight pipe 35, left lower straight pipe 351, right lower straight pipe 352, control signal interface 36, left core group 4, heating agent flow channel 41, left working fluid flow channel 42, left inlet cover plate 43, left cover plate through hole 431, left outlet cover plate 44, left lamination group 45, right core group 5, refrigerant flow channel 51, right working fluid flow channel 52, right inlet cover plate 53, right cover plate through hole 531, right outlet cover plate 54, right lamination group 46, right lamination group 47, right lamination group 48, right lamination group 49, right lamination group 50, right lamination group 51, right working fluid flow channel 52, right inlet cover plate 53, right cover plate through hole 531, right outlet cover plate 54, right lamination group 55, right lamination group 56, right lamination group 57, right lamination group 58, right lamination group 59, right lamination group 60, right lamination group 61, right lamination group 62, right lamination group 63, right lamination group 64, right lamination group 65, right lamination group 66, right lamination group 67, right lamination group 68, right lamination group 69, right lamination group 70, right lamination group 71, right lamination group 72, right lamination group 73, right lamination group 74, right lamination group 75 Plate group 55, left outer tube 6, middle outer tube 61, right outer tube 62, working fluid total outlet 63, left working fluid interface 64, refrigeration box 7, refrigerant external inlet 71, refrigerant external outlet 72, refrigeration pipe 73, connection box 8, left working fluid inlet pipe 81, right working fluid inlet pipe 82, box inner cavity 83, mounting bracket 84, A chip 9, working fluid upper hole 91, working fluid upper sealing tube 911, agent upper hole 92, agent upper sealing tube 921, working fluid lower hole 93, working fluid lower sealing tube 931, agent lower hole 94, agent lower sealing tube 941, working fluid oblique flow channel 95, sunken protrusion 96, convex tip 961, recessed portion 962, plate frame 97, B chip 10, inter-plate liquid storage cavity 101. DETAILED DESCRIPTION

[0045] The present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0046] See also Figure 1 — Figure 8 , a heat exchange device for heating and cooling a working medium, comprising a left core group 4, a right core group 5 and a three-way valve 3, wherein the three-way valve 3 comprises a working medium total inlet 31 and a left working medium inlet 32 ​​and a right working medium inlet 33 communicating therewith;

[0047] The left core group 4 includes a heating agent flow channel 41 and a left working medium flow channel 42 which are independent of each other. The two ends of the heating agent flow channel 41 are respectively connected to the heating agent inlet 1 and the heating agent outlet 11, and the two ends of the left working medium flow channel 42 are respectively connected to the left working medium inlet 32 ​​and the left working medium outlet 321.

[0048] The right core group 5 includes a refrigerant flow channel 51 and a right working fluid flow channel 52 which are independent of each other. The two ends of the refrigerant flow channel 51 are respectively connected to the refrigerant inlet 2 and the refrigerant outlet 21 , and the two ends of the right working fluid flow channel 52 are respectively connected to the right working fluid inlet 33 and the right working fluid outlet 331 .

[0049] The three-way valve 3 is an electronic three-way water valve, which includes a vertical pipe 34, a horizontal pipe 35 and a control signal interface 36. The top of the vertical pipe 34 is provided with a total working fluid inlet 31, the bottom end of the vertical pipe 34 is vertically connected to the top of the middle part of the horizontal pipe 35, and the bottom of the middle part of the horizontal pipe 35 is respectively connected to the top of the lower left straight pipe 351 and the lower right straight pipe 352. The bottom end of the lower left straight pipe 351 is provided with a left working fluid inlet 32, and the bottom end of the lower right straight pipe 352 is provided with a right working fluid inlet 33, and the control signal interface 36 is connected to the horizontal pipe 35.

[0050] The heat exchange device also includes a left outer tube 6, a middle outer tube 61 and a right outer tube 62. The two ends of the left outer tube 6 are respectively provided with a total working fluid outlet 63 and a left working fluid interface 64. The left working fluid interface 64 is correspondingly connected to the left working fluid outlet 321. The middle part of the left outer tube 6 is connected to one end of the middle outer tube 61, the other end of the middle outer tube 61 is connected to one end of the right outer tube 62, and the other end of the right outer tube 62 is correspondingly connected to the right working fluid outlet 331.

[0051] The heat exchange device further comprises a refrigeration box 7, one end of which is provided with a refrigerant external inlet 71 and a refrigerant external outlet 72, and the other end of the refrigeration box 7 is provided with a refrigerant inlet 2;

[0052] The refrigerant external inlet 71 is connected to the refrigerant inlet 2 via the refrigeration box 7, and the refrigerant external outlet 72 is connected to the refrigerant outlet 21 via the refrigeration box 7 and the refrigeration pipe 73 in sequence.

[0053] The refrigerant inlet 2 is connected to the outlet of the electromagnetic expansion valve via the refrigeration box 7 and the refrigerant external inlet 71 in sequence; the refrigerant outlet 21 is connected to the compressor via the refrigeration pipe 73, the refrigeration box 7, and the refrigerant external outlet 72 in sequence.

[0054] The heat exchange device also includes a hollow connection box 8, the top surface of which is passed through a left working fluid inlet pipe 81 and a right working fluid inlet pipe 82, the top end of the left working fluid inlet pipe 81 is connected to the left working fluid inlet 32, the bottom end of the left working fluid inlet pipe 81 passes through the box inner cavity 83 and is connected to the end of the left working fluid flow channel 42, the top end of the right working fluid inlet pipe 82 is connected to the right working fluid inlet 33, the bottom end of the right working fluid inlet pipe 82 passes through the box inner cavity 83 and is connected to the end of the right working fluid flow channel 52. The interior of the connection box 8 is the box inner cavity 83, the bottom surface of the connection box 8 is connected to one end of a mounting bracket 84, and the other end of the mounting bracket 84 is connected to the vehicle body.

[0055] The left core group 4 includes a left inlet cover plate 43, a left outlet cover plate 44 and a left lamination group 45 sandwiched therebetween. The left inlet cover plate 43 is provided with a left cover plate through hole 431. The left outlet cover plate 44 is provided with a left working medium outlet 321, a heating agent inlet 1 and a heating agent outlet 11. The left lamination group 45 is provided with a heating agent flow channel 41 and a left working medium flow channel 42. The left working medium inlet pipe 81 is connected to the left working medium outlet 321 after passing through the left cover plate through hole 431 and the left working medium flow channel 42 in sequence.

[0056] The right core group 5 includes a right inlet cover plate 53, a right outlet cover plate 54 and a right lamination group 55 sandwiched therebetween. The right inlet cover plate 53 is provided with a right cover plate through hole 531. The right outlet cover plate 54 is provided with a right working fluid outlet 331, a refrigerant inlet 2 and a refrigerant outlet 21. The right lamination group 55 is provided with a refrigerant flow channel 51 and a right working fluid flow channel 52. The right working fluid inlet pipe 82 is connected to the right working fluid outlet 331 after passing through the right cover plate through hole 531 and the right working fluid flow channel 52 in sequence.

[0057] The structures of the left lamination group 45 and the right lamination group 55 are consistent, and both include alternately stacked A chips 9 and B chips 10. The number of the A chips 9 and the B chips 10 is at least two, and an inter-chip liquid storage cavity 101 is sandwiched between the adjacent stacked A chips 9 and B chips 10; the four corners of the A chips 9 and the B chips 10 are sequentially opened with a working fluid upper hole 91, an agent upper hole 92, a working fluid lower hole 93 and an agent lower hole 94; in the stacked A chips 9 and B chips 10, the connection structure between the working fluid upper hole 91, the agent upper hole 92, the working fluid lower hole 93 and the agent lower hole 94 is any one of the following:

[0058] The first type is that the two upper working medium holes 91 are connected to form an upper working medium sealing tube 911, the two lower working medium holes 93 are sealed, the upper agent hole 92 and the lower agent hole 94 are both connected, and the upper agent hole 92 and the lower agent hole 94 are both connected to the inter-plate liquid storage cavity 101;

[0059] The second type is that the two working fluid lower holes 93 are connected to each other to form a working fluid lower sealing tube 931, the two working fluid upper holes 91 are sealed, the agent upper hole 92 and the agent lower hole 94 are both connected, and the agent upper hole 92 and the agent lower hole 94 are both connected to the inter-plate liquid storage cavity 101;

[0060] The third type is that the upper working hole 91 on the A chip 9 is sealed, and the lower working hole 93 is connected, and the upper working hole 91 on the B chip 10 is connected, and the lower working hole 93 is sealed, or the upper working hole 91 on the A chip 9 is connected, and the lower working hole 93 is sealed, and the upper working hole 91 on the B chip 10 is sealed, and the lower working hole 93 is connected, so as to form two kinds of working medium oblique flow channels 95, and the working medium oblique flow channels 95 are connected with the inter-chip liquid storage cavity 101; while forming the working medium oblique flow channel 95, the connection structure of the upper working hole 92 and the lower working hole 94 is any one of the following:

[0061] The two upper holes 92 are connected to form an upper sealed tube 921, and the two lower holes 94 are sealed, or the two lower holes 94 are connected to form a lower sealed tube 941, and the two upper holes 92 are sealed, or the two upper holes 92 are connected to form an upper sealed tube 921, and the two lower holes 94 are connected to form a lower sealed tube 941;

[0062] In the left lamination group 45, all the upper working medium sealing tubes 911, the lower working medium sealing tubes 931, and the working medium oblique flow channel 95 are interconnected to form the left working medium flow channel 42, and all the upper agent sealing tubes 921 and the lower agent sealing tubes 941 are interconnected through the inter-sheet liquid storage cavity 101 to form the heating agent flow channel 41. Of the two adjacent inter-sheet liquid storage cavities 101, one is only communicated with the heating agent flow channel 41, and the other is only communicated with the left working medium flow channel 42;

[0063] In the right lamination group 55, all the upper working fluid sealed tubes 911, the lower working fluid sealed tubes 931, and the working fluid inclined flow channel 95 are interconnected to form the right working fluid flow channel 52, and all the upper agent sealed tubes 921 and the lower agent sealed tubes 941 are communicated with each other through the inter-plate liquid storage cavity 101 to form the refrigerant flow channel 51. Of the two adjacent inter-plate liquid storage cavities 101, one is only connected to the refrigerant flow channel 51, and the other is only connected to the right working fluid flow channel 52.

[0064] Of the two working fluid upper holes 91 in the working fluid upper sealing tube 911, one is an outward convex structure and the other is an inward concave structure, and the two working fluid upper holes 91 are inserted and connected;

[0065] Of the two working fluid lower holes 93 in the working fluid lower sealing tube 931, one is an outward convex structure and the other is an inward concave structure, and the two working fluid lower holes 93 are inserted and connected;

[0066] Of the two upper holes 92 in the upper sealing tube 921, one is an outward convex structure and the other is an inward concave structure, and the two upper holes 92 are inserted and connected;

[0067] Of the two lower-dose holes 94 in the lower-dose sealing tube 941 , one is an outwardly convex structure, and the other is an inwardly concave structure, and the two lower-dose holes 94 are inserted and connected.

[0068] The A chip 9 and the B chip 10 are both provided with an inwardly sunken protrusion 96, the two ends of the inwardly sunken protrusion 96 are a convex tip portion 961 and a concave portion 962, and the maximum width of the convex tip portion 961 is greater than the maximum width of the concave portion 962;

[0069] In the stacked A chip 9 and B chip 10 , the convex tip portion 961 on the A chip 9 and the concave portion 962 on the B chip 10 are correspondingly inserted and matched.

[0070] The principle of the present invention is described as follows:

[0071] When the present invention is on a vehicle production line, the mounting bracket 84 is first assembled to the hole position to be mounted on the vehicle, the heating agent inlet 1 and the heating agent outlet 11 are respectively connected to the inlet and outlet pipes of the heating agent by means of clamps, the refrigerant inlet 2 is connected to the outlet of the electromagnetic expansion valve, the refrigerant outlet 21 is connected to the compressor through a pipeline, the working fluid total inlet 31 and the working fluid total outlet 63 are respectively connected to the inlet and outlet pipes of the battery working fluid circulation system by means of clamps, and the control signal interface 36 communicates with the VCU (vehicle control unit) through a connector.

[0072] The left outer tube 6 in the present invention is preferably a straight tube structure, the middle outer tube 61 is preferably a U-shaped structure, and the right outer tube 62 is preferably an L-shaped structure.

[0073] In the present invention, the upper sealing tube 911 of the working fluid, the lower sealing tube 931 of the working fluid, the upper sealing tube 921 of the agent, and the lower sealing tube 941 of the agent are all directly connected between holes (preferably concave-convex connection, such as Figure 7 , Figure 8 As shown), this connection method can not only realize the connection between the two holes, but also ensure the sealing after the connection, so that there is no interference with the inter-sheet liquid storage cavity 101 where the sealing tube is located, that is, the liquid flowing in the sealing tube and the liquid flowing in the inter-sheet liquid storage cavity 101 where the sealing tube is located are of different types.

[0074] The working fluid inclined flow channel 95 in the present invention refers to the interconnection between two oblique holes on the A chip 9 and the B chip 10 (not connected to form a pipeline), that is, on the basis that the A chip 9 and the B chip 10 are stacked on each other and sandwiched into an inter-chip liquid storage cavity 101, regarding the circulation of the working fluid: only the working fluid upper hole 91 in the A chip 9 passes through the inter-chip liquid storage cavity 101 and circulates with the working fluid lower hole 93 in the B chip 10, or, only the working fluid lower hole 93 in the A chip 9 passes through the inter-chip liquid storage cavity 101 and circulates with the working fluid upper hole 91 in the B chip 10.

[0075] In the present invention, a chip frame 97 may be provided around the periphery of the A chip 9 and the B chip 10 to seal the inter-chip liquid storage cavity 101 .

[0076] Embodiment 1:

[0077] See also Figure 1 — Figure 8A heat exchange device for heating and cooling a working medium comprises a left core group 4, a right core group 5 and a three-way valve 3, wherein the three-way valve 3 comprises a working medium total inlet 31 and a left working medium inlet 32 ​​and a right working medium inlet 33 communicated therewith; the left core group 4 comprises a heating agent flow channel 41 and a left working medium flow channel 42 which are independent of each other, the two ends of the heating agent flow channel 41 are respectively communicated with the heating agent inlet 1 and the heating agent outlet 11, and the two ends of the left working medium flow channel 42 are respectively communicated with the left working medium inlet 32 ​​and the left working medium outlet 321; the right core group 5 comprises a refrigerant flow channel 51 and a right working medium flow channel 52 which are independent of each other, the two ends of the refrigerant flow channel 51 are respectively communicated with the refrigerant inlet 2 and the refrigerant outlet 21, and the two ends of the right working medium flow channel 52 are respectively communicated with the right working medium inlet 33 and the right working medium outlet 331.

[0078] Embodiment 2:

[0079] The basic content is the same as that of Example 1, except that:

[0080] The three-way valve 3 is an electronic three-way water valve, which includes a vertical pipe 34, a horizontal pipe 35 and a control signal interface 36. The top of the vertical pipe 34 is provided with a total working fluid inlet 31, the bottom end of the vertical pipe 34 is vertically connected to the top of the middle part of the horizontal pipe 35, and the bottom of the middle part of the horizontal pipe 35 is respectively connected to the top of the lower left straight pipe 351 and the lower right straight pipe 352. The bottom end of the lower left straight pipe 351 is provided with a left working fluid inlet 32, and the bottom end of the lower right straight pipe 352 is provided with a right working fluid inlet 33, and the control signal interface 36 is connected to the horizontal pipe 35.

[0081] Embodiment 3:

[0082] The basic content is the same as that of Example 1, except that:

[0083] The left core group 4 includes a left inlet cover plate 43, a left outlet cover plate 44 and a left lamination group 45 sandwiched therebetween. The left inlet cover plate 43 is provided with a left cover plate through hole 431. The left outlet cover plate 44 is provided with a left working medium outlet 321, a heating agent inlet 1 and a heating agent outlet 11. The left lamination group 45 is provided with a heating agent flow channel 41 and a left working medium flow channel 42. The left working medium inlet pipe 81 is connected to the left working medium outlet 321 after passing through the left cover plate through hole 431 and the left working medium flow channel 42 in sequence.

[0084] The right core group 5 includes a right inlet cover plate 53, a right outlet cover plate 54 and a right lamination group 55 sandwiched therebetween. The right inlet cover plate 53 is provided with a right cover plate through hole 531. The right outlet cover plate 54 is provided with a right working fluid outlet 331, a refrigerant inlet 2 and a refrigerant outlet 21. The right lamination group 55 is provided with a refrigerant flow channel 51 and a right working fluid flow channel 52. The right working fluid inlet pipe 82 is connected to the right working fluid outlet 331 after passing through the right cover plate through hole 531 and the right working fluid flow channel 52 in sequence.

[0085] Embodiment 4:

[0086] The basic content is the same as that of Example 3, except that:

[0087] like Figure 4 , Figure 5 and Figure 6 As shown, the structures of the left lamination group 45 and the right lamination group 55 are consistent, and both include alternately stacked A chips 9 and B chips 10, the number of the A chips 9 and the B chips 10 is at least two, and an inter-chip liquid storage cavity 101 is sandwiched between the adjacent stacked A chips 9 and B chips 10; the four corners of the A chips 9 and the B chips 10 are sequentially opened with a working fluid upper hole 91, an agent upper hole 92, a working fluid lower hole 93 and an agent lower hole 94; in the stacked A chips 9 and B chips 10, the connection structure between the working fluid upper hole 91, the agent upper hole 92, the working fluid lower hole 93 and the agent lower hole 94 is any one of the following:

[0088] The first type is that the two upper working medium holes 91 are connected to form an upper working medium sealing tube 911, the two lower working medium holes 93 are sealed, the upper agent hole 92 and the lower agent hole 94 are both connected, and the upper agent hole 92 and the lower agent hole 94 are both connected to the inter-plate liquid storage cavity 101;

[0089] The second type is that the two working fluid lower holes 93 are connected to each other to form a working fluid lower sealing tube 931, the two working fluid upper holes 91 are sealed, the agent upper hole 92 and the agent lower hole 94 are both connected, and the agent upper hole 92 and the agent lower hole 94 are both connected to the inter-plate liquid storage cavity 101;

[0090] The third type is that the upper working hole 91 on the A chip 9 is sealed, and the lower working hole 93 is connected, and the upper working hole 91 on the B chip 10 is connected, and the lower working hole 93 is sealed, or the upper working hole 91 on the A chip 9 is connected, and the lower working hole 93 is sealed, and the upper working hole 91 on the B chip 10 is sealed, and the lower working hole 93 is connected, so as to form two kinds of working medium oblique flow channels 95, and the working medium oblique flow channels 95 are connected with the inter-chip liquid storage cavity 101; while forming the working medium oblique flow channel 95, the connection structure of the upper working hole 92 and the lower working hole 94 is any one of the following:

[0091] The two upper holes 92 are connected to form an upper sealed tube 921, and the two lower holes 94 are sealed, or the two lower holes 94 are connected to form a lower sealed tube 941, and the two upper holes 92 are sealed, or the two upper holes 92 are connected to form an upper sealed tube 921, and the two lower holes 94 are connected to form a lower sealed tube 941;

[0092] In the left lamination group 45, all the upper working medium sealing tubes 911, the lower working medium sealing tubes 931, and the working medium oblique flow channel 95 are interconnected to form the left working medium flow channel 42, and all the upper agent sealing tubes 921 and the lower agent sealing tubes 941 are interconnected through the inter-sheet liquid storage cavity 101 to form the heating agent flow channel 41. Of the two adjacent inter-sheet liquid storage cavities 101, one is only communicated with the heating agent flow channel 41, and the other is only communicated with the left working medium flow channel 42;

[0093] In the right lamination group 55, all the upper working fluid sealed tubes 911, the lower working fluid sealed tubes 931, and the working fluid inclined flow channel 95 are interconnected to form the right working fluid flow channel 52, and all the upper agent sealed tubes 921 and the lower agent sealed tubes 941 are communicated with each other through the inter-plate liquid storage cavity 101 to form the refrigerant flow channel 51. Of the two adjacent inter-plate liquid storage cavities 101, one is only connected to the refrigerant flow channel 51, and the other is only connected to the right working fluid flow channel 52.

[0094] Embodiment 5:

[0095] The basic content is the same as that of Example 3, except that:

[0096] like Figure 7 and Figure 8 As shown, both the A chip 9 and the B chip 10 are provided with an inward protrusion 96, and the two ends of the inward protrusion 96 are respectively a convex tip portion 961 and a concave portion 962, and the maximum width of the convex tip portion 961 is greater than the maximum width of the concave portion 962; in the A chip 9 and the B chip 10 stacked on each other, the convex tip portion 961 on the A chip 9 and the concave portion 962 on the B chip 10 are correspondingly inserted and matched.

[0097] The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiment. Any equivalent modifications or changes made by ordinary technicians in this field based on the contents disclosed by the present invention should be included in the protection scope recorded in the claims.

Claims

1. A heat exchange device for heating and cooling a working medium, characterized in that: The heat exchange device comprises a left core group (4), a right core group (5) and a three-way valve (3), and the three-way valve (3) comprises a working fluid main inlet (31) and a left working fluid inlet (32) and a right working fluid inlet (33) which are in communication with the main inlet (31). The left core group (4) comprises a heating agent flow channel (41) and a left working fluid flow channel (42) which are independent of each other; the two ends of the heating agent flow channel (41) are respectively connected to the heating agent inlet (1) and the heating agent outlet (11); and the two ends of the left working fluid flow channel (42) are respectively connected to the left working fluid inlet (32) and the left working fluid outlet (321); The right core group (5) comprises a refrigerant flow channel (51) and a right working fluid flow channel (52) which are independent of each other; the two ends of the refrigerant flow channel (51) are respectively connected to the refrigerant inlet (2) and the refrigerant outlet (21); and the two ends of the right working fluid flow channel (52) are respectively connected to the right working fluid inlet (33) and the right working fluid outlet (331); The heat exchange device further comprises a left outer tube (6), a middle outer tube (61) and a right outer tube (62); the two ends of the left outer tube (6) are respectively provided with a working fluid total outlet (63) and a left working fluid interface (64); the left working fluid interface (64) is correspondingly connected to the left working fluid outlet (321); the middle portion of the left outer tube (6) is connected to one end of the middle outer tube (61); the other end of the middle outer tube (61) is connected to one end of the right outer tube (62); and the other end of the right outer tube (62) is correspondingly connected to the right working fluid outlet (331); The heat exchange device further comprises a refrigeration box (7), one end of the refrigeration box (7) being provided with a refrigerant external inlet (71) and a refrigerant external outlet (72), and the other end of the refrigeration box (7) being provided with a refrigerant inlet (2); The refrigerant external inlet (71) is connected to the refrigerant inlet (2) via the refrigeration box (7), and the refrigerant external outlet (72) is connected to the refrigerant outlet (21) via the refrigeration box (7) and the refrigeration pipe (73) in sequence; The heat exchange device further comprises a hollow connection box (8), a left working fluid inlet pipe (81) and a right working fluid inlet pipe (82) passing through the top surface of the connection box (8), the top end of the left working fluid inlet pipe (81) being connected to the left working fluid inlet (32), the bottom end of the left working fluid inlet pipe (81) passing through the box inner cavity (83) and being connected to the end of the left working fluid flow channel (42), the top end of the right working fluid inlet pipe (82) being connected to the right working fluid inlet (33), and the bottom end of the right working fluid inlet pipe (82) passing through the box inner cavity (83) and being connected to the end of the right working fluid flow channel (52).

2. A heat exchange device for heating and cooling a working medium according to claim 1, characterized in that: The three-way valve (3) is an electronic three-way water valve, comprising a vertical tube (34), a horizontal tube (35) and a control signal interface (36); the top of the vertical tube (34) is provided with a total working fluid inlet (31); the bottom of the vertical tube (34) is vertically connected to the top of the middle of the horizontal tube (35); the bottom of the middle of the horizontal tube (35) is respectively connected to the top of the lower left straight tube (351) and the top of the lower right straight tube (352); the bottom of the lower left straight tube (351) is provided with a left working fluid inlet (32); the bottom of the lower right straight tube (352) is provided with a right working fluid inlet (33); and the control signal interface (36) is connected to the horizontal tube (35).

3. A heat exchange device for heating and cooling a working medium according to claim 1, characterized in that: The refrigerant inlet (2) is connected to the outlet of the electromagnetic expansion valve via the refrigeration box (7) and the refrigerant external inlet (71) in sequence; the refrigerant outlet (21) is connected to the compressor via the refrigeration pipe (73), the refrigeration box (7) and the refrigerant external outlet (72) in sequence.

4. A heat exchange device for heating and cooling a working medium according to claim 1, characterized in that: The left core group (4) comprises a left inlet cover plate (43), a left outlet cover plate (44) and a left lamination group (45) sandwiched therebetween; the left inlet cover plate (43) is provided with a left cover plate through hole (431); the left outlet cover plate (44) is provided with a left working fluid outlet (321), a heating agent inlet (1) and a heating agent outlet (11); a heating agent flow channel (41) and a left working fluid flow channel (42) are provided in the left lamination group (45); the left working fluid inlet pipe (81) is connected to the left working fluid outlet (321) after passing through the left cover plate through hole (431) and the left working fluid flow channel (42) in sequence; The right core group (5) comprises a right inlet cover plate (53), a right outlet cover plate (54) and a right lamination group (55) sandwiched therebetween; the right inlet cover plate (53) is provided with a right cover plate through hole (531); the right outlet cover plate (54) is provided with a right working fluid outlet (331), a refrigerant inlet (2) and a refrigerant outlet (21); a refrigerant flow channel (51) and a right working fluid flow channel (52) are provided in the right lamination group (55); the right working fluid inlet pipe (82) is connected to the right working fluid outlet (331) after passing through the right cover plate through hole (531) and the right working fluid flow channel (52) in sequence.

5. A heat exchange device for heating and cooling a working medium according to claim 4, characterized in that: The left stack (45) and the right stack (55) have the same structure, and both include alternately stacked A chips (9) and B chips (10). The number of the A chips (9) and B chips (10) is at least two, and an inter-chip liquid storage cavity (101) is formed between adjacent stacked A chips (9) and B chips (10). The four corners of the A chips (9) and B chips (10) are sequentially provided with working fluid upper holes (91), agent upper holes (92), working fluid lower holes (93), and agent lower holes (94). In the stacked A chips (9) and B chips (10), the connection structure between the working fluid upper holes (91), the agent upper holes (92), the working fluid lower holes (93), and the agent lower holes (94) is any one of the following: In the first type, the two working fluid upper holes (91) are connected to form a working fluid upper sealing tube (911), the two working fluid lower holes (93) are both sealed, the agent upper hole (92) and the agent lower hole (94) are both connected, and the agent upper hole (92) and the agent lower hole (94) are both in communication with the inter-plate liquid storage cavity (101); The second type is that the two working fluid lower holes (93) are connected to each other to form a working fluid lower sealing tube (931), the two working fluid upper holes (91) are both sealed, the agent upper hole (92) and the agent lower hole (94) are both connected, and the agent upper hole (92) and the agent lower hole (94) are both in communication with the inter-plate liquid storage cavity (101); The third type is that the upper working hole (91) on the A chip (9) is sealed and the lower working hole (93) is connected, and the upper working hole (91) on the B chip (10) is connected and the lower working hole (93) is sealed, or the upper working hole (91) on the A chip (9) is connected and the lower working hole (93) is sealed, and the upper working hole (91) on the B chip (10) is sealed and the lower working hole (93) is connected, so as to form two kinds of working medium oblique flow channels (95), and the working medium oblique flow channels (95) are connected to the inter-chip liquid storage cavity (101); while forming the working medium oblique flow channel (95), the connection structure of the upper working hole (92) and the lower working hole (94) is any one of the following: The two upper holes (92) are connected to each other to form an upper sealed tube (921), and the two lower holes (94) are both sealed; or, the two lower holes (94) are connected to each other to form a lower sealed tube (941), and the two upper holes (92) are both sealed; or, the two upper holes (92) are connected to each other to form an upper sealed tube (921), and the two lower holes (94) are connected to each other to form a lower sealed tube (941); In the left lamination group (45), all the working fluid upper sealing tubes (911), the working fluid lower sealing tubes (931), and the working fluid inclined flow channel (95) are interconnected to form a left working fluid flow channel (42); all the agent upper sealing tubes (921) and the agent lower sealing tubes (941) are interconnected via the inter-lamina liquid storage cavity (101) to form a heating agent flow channel (41); of two adjacent inter-lamina liquid storage cavities (101), one is only in communication with the heating agent flow channel (41), and the other is only in communication with the left working fluid flow channel (42); In the right lamination group (55), all the working fluid upper sealed tubes (911), the working fluid lower sealed tubes (931), and the working fluid inclined flow channel (95) are interconnected to form a right working fluid flow channel (52), and all the agent upper sealed tubes (921) and agent lower sealed tubes (941) are interconnected through the inter-lamina liquid storage cavity (101) to form a refrigerant flow channel (51). Of the two adjacent inter-lamina liquid storage cavities (101), one is only in communication with the refrigerant flow channel (51), and the other is only in communication with the right working fluid flow channel (52).

6. A heat exchange device for heating and cooling a working medium according to claim 5, characterized in that: Of the two working fluid upper holes (91) in the working fluid upper sealing tube (911), one is an outwardly convex structure and the other is an inwardly concave structure, and the two working fluid upper holes (91) are inserted and connected; Of the two working fluid lower holes (93) in the working fluid lower sealing tube (931), one is an outwardly convex structure and the other is an inwardly concave structure, and the two working fluid lower holes (93) are inserted and connected; Of the two upper agent holes (92) in the upper agent sealing tube (921), one is an outward convex structure and the other is an inward concave structure, and the two upper agent holes (92) are inserted and connected; Of the two lower-dose holes (94) in the lower-dose sealing tube (941), one is an outwardly convex structure and the other is an inwardly concave structure, and the two lower-dose holes (94) are inserted and connected.

7. A heat exchange device for heating and cooling a working medium according to claim 5, characterized in that: The A chip (9) and the B chip (10) are both provided with an inwardly sunken protrusion (96), the two ends of the inwardly sunken protrusion (96) are respectively a convex tip portion (961) and a concave portion (962), and the maximum width of the convex tip portion (961) is greater than the maximum width of the concave portion (962); In the mutually stacked A chip (9) and B chip (10), the convex tip portion (961) on the A chip (9) and the concave portion (962) on the B chip (10) are correspondingly inserted and matched.

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