Plate heat exchanger and automobile

Abstract

The utility model discloses a plate heat exchanger and an automobile, comprising: a pressing plate, the lower end face of which is provided with a refrigerant inlet joint, a refrigerant outlet joint, a cooling liquid inlet joint and a cooling liquid outlet joint in a concentrated manner; the upper end face of the pressing plate is provided with a refrigerant inlet runner groove communicated with the refrigerant inlet connector, and a refrigerant outlet runner groove communicated with the refrigerant outlet connector. The refrigerant outlet runner groove is communicated with the refrigerant outlet connector; the cooling liquid inlet runner groove is communicated with the cooling liquid inlet joint; the cooling liquid outlet runner groove is communicated with the cooling liquid outlet joint; the core body is installed on the upper end face of the pressing plate and communicates with the refrigerant inlet runner groove and the refrigerant outlet runner groove, and a refrigerant is introduced into the core body; the cooling liquid inlet runner groove and the cooling liquid outlet runner groove are further communicated with the cooling liquid inlet runner groove and the cooling liquid outlet runner groove respectively; a top plate is arranged on the core body. According to the technical scheme, all the connectors are arranged on the lower end face of the pressing plate in a centralized mode, the problem that space in an automobile is wasted in use is solved, the technical effect of improving the space utilization rate is achieved, and the purpose of improving economic benefits is achieved.

Description

Technical Field

[0001] This utility model application belongs to the technical field of plate heat exchangers, and particularly relates to a plate heat exchanger and an automobile. Background Art

[0002] With the booming development of China's automobile industry today, the competition in the supporting industries related to automobiles is becoming increasingly fierce. New energy vehicles are attracting more and more attention from consumers due to their zero environmental pollution and low noise. All kinds of automobile parts are developing in the direction of being light, efficient, economical, and energy-saving.

[0003] The plate heat exchanger in new energy vehicles is currently a widely used automobile heat exchanger. A plate heat exchanger is a highly efficient heat exchanger composed of several metal sheets of specific shapes stacked together. Thin rectangular channels are formed between various plates, and heat exchange is carried out through the plates. The plate heat exchanger is an ideal device for liquid-liquid and liquid-vapor heat exchange. It has the characteristics of high heat exchange efficiency, small heat loss, compact and lightweight structure, small floor area, wide application, long service life, etc. Under the same pressure loss condition, its heat transfer coefficient is 3-5 times higher than that of a tubular heat exchanger, the floor area is one-third of that of a tubular heat exchanger, and the heat recovery rate can be as high as over 90%. A plate heat exchanger usually has two circuits for introducing fluids respectively, and heat exchange between the coolant and the refrigerant, and between the coolant and the coolant is realized by using these two circuits.

[0004] However, in the prior art, the following problems are faced: Due to the four interfaces arranged outside the plate heat exchanger, these four interfaces are respectively the inlet interfaces and outlet interfaces of two fluids. When the plate heat exchanger is installed on the automobile, it will cause a certain waste of the internal space of the automobile. The general development trend of automobile parts is to become smaller and smaller in volume, that is, to make full use of the interior space of the vehicle as much as possible and improve the space utilization rate of the automobile.

[0005] Therefore, it is urgent to design a new type of automobile plate heat exchanger to make the design of the four interface positions more reasonable. On the basis of ensuring the performance of the automobile heat exchanger and realizing its heat exchange function normally, the volume occupied by the plate heat exchanger in the automobile is controlled to the greatest extent, avoiding its excessive and unreasonable occupation of the internal space of the automobile and the waste of the internal space of the automobile, so as to achieve the technical effect of improving the space utilization rate of the automobile, meeting the needs of customers for products, and ultimately achieving the purpose of improving economic benefits. Summary of the Utility Model

[0006] This utility model application discloses a plate heat exchanger and an automobile to solve the problems existing in the above prior art.

[0007] To achieve the above object, a first aspect of the present utility model provides a plate heat exchanger, comprising: a pressing plate, on the lower end face of which there are centrally provided a refrigerant inlet joint, a refrigerant outlet joint, a coolant inlet joint, and a coolant outlet joint; on the upper end face of the pressing plate, there are respectively formed: a refrigerant inlet flow channel groove communicating with the refrigerant inlet joint; a refrigerant outlet flow channel groove communicating with the refrigerant outlet joint; a coolant inlet flow channel groove communicating with the coolant inlet joint; a coolant outlet flow channel groove communicating with the coolant outlet joint; a core body installed on the upper end face of the pressing plate, the core body being respectively communicated with the refrigerant inlet flow channel groove and the refrigerant outlet flow channel groove to form a first flow channel, and the refrigerant flows in from the refrigerant inlet joint, passes through the core body, and then flows out from the refrigerant outlet joint; the core body is also respectively communicated with the coolant inlet flow channel groove and the coolant outlet flow channel groove to form a second flow channel, and the coolant flows in from the coolant inlet joint, passes through the core body, and then flows out from the coolant outlet joint; a top plate installed on the upper end face of the core body.

[0008] Further, the refrigerant inlet joint, the refrigerant outlet joint, the coolant inlet joint, and the coolant outlet joint are centrally provided in the middle of the lower end face of the pressing plate; one end slots of the refrigerant inlet flow channel groove, the refrigerant outlet flow channel groove, the coolant inlet flow channel groove, and the coolant outlet flow channel groove are all centrally provided in the middle of the pressing plate, and the other end slots are respectively located at the four corners of the pressing plate.

[0009] Further, positioning holes are formed on the pressing plate.

[0010] Further, the core body is composed of a plurality of chips stacked, and through holes are respectively formed at the four corners of the chips for fluid circulation.

[0011] Further, corrugated flow channel grooves are formed on the chips.

[0012] Further, on the edges of the two corners on one side of the lower end face of the chip, L-shaped protrusions are respectively formed, and on the other side, the two through holes respectively extend downward along the hole walls to form annular arc-shaped protrusions.

[0013] Further, it further comprises: a lower bottom plate installed between the core body and the pressing plate; an upper top plate installed between the core body and the top plate; and holes for fluid circulation are respectively formed at the four corners of the lower bottom plate and the upper top plate.

[0014] A second aspect of the present disclosure provides a vehicle, comprising the plate heat exchanger provided above.

[0015] The advantages and positive effects of the present utility model are:

[0016] 1. For the plate heat exchanger disclosed in the application of the present utility model, compared with the case where each inlet / outlet joint is dispersedly arranged on the lower end surface of the pressing plate, concentrating each joint on the lower end surface of the pressing plate. This design enables the plate heat exchanger to promote the rational utilization of the vehicle interior space, improve the utilization rate of the remaining space inside the vehicle, and reduce the waste of the vehicle interior space under the condition of the same volume and the same occupied space inside the vehicle.

[0017] This design is scientific and reasonable. On the basis of ensuring the normal heat exchange function of the vehicle heat exchanger, it maximally controls the volume occupied by the plate heat exchanger in the vehicle, avoids the excessive and unreasonable occupation of the vehicle interior space in the prior art, solves the problem of waste of the vehicle interior space, achieves the technical effect of improving the utilization rate of the vehicle space, meets the customer's requirements for the product, and ultimately realizes the purpose of improving economic benefits.

[0018] 2. For the plate heat exchanger disclosed in the application of the present utility model, one ends of the refrigerant inlet flow channel groove, refrigerant outlet flow channel groove, coolant inlet flow channel groove, and coolant outlet flow channel groove are all concentrated in the middle of the pressing plate, and the other ends are respectively located at the four corners of the pressing plate. This design makes the manufacturing process of the four flow channel grooves on the pressing plate simpler and more convenient. Overall, it also saves more materials for the overall manufacturing of the pressing plate component.

[0019] 3. For the plate heat exchanger disclosed in the application of the present utility model, corrugated flow channel grooves are made on the chips of the core body, which can not only improve the pressure resistance of the chips but also overall enhance the heat exchange performance of the present plate heat exchanger.

[0020] 4. For the plate heat exchanger disclosed in the application of the present utility model, the L-shaped convex structure made on the chips of the core body can also reduce the resistance generated by the medium flow, thereby reducing the water resistance of the present plate heat exchanger and achieving the effect of low water resistance and high performance.

[0021] 5. The vehicle disclosed in the application of the present utility model has all the advantages of the above-mentioned plate heat exchanger due to including the above-mentioned plate heat exchanger. To avoid repetition, it will not be elaborated here.

[0022] 6. The technical solution disclosed in the application of the present utility model has the advantages of simple structure, firm pressure resistance, strong sealing performance, stable performance, material saving, easy manufacturing, safety and reliability, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 FIG. is an exploded view of a plate heat exchanger provided in the first aspect of the present utility model;

[0024] Figure 2 FIG. is a structural schematic diagram of the lower end surface of the pressing plate in the present plate heat exchanger;

[0025] Figure 3 Structural schematic diagram of the upper end face of the clamping plate in this plate heat exchanger;

[0026] Figure 4 Structural schematic diagram of the chip of the core body in this plate heat exchanger;

[0027] Figure 5 is Figure 4 bottom view of;

[0028] Figure 6 Structural schematic diagram of the upper top plate in this plate heat exchanger;

[0029] Figure 7 Structural schematic diagram of the lower bottom plate in this plate heat exchanger.

[0030] Explanation of reference numerals

[0031] 1, top plate; 2, upper top plate; 3, core body; 301, chip; 301a, through hole; 301b, L-shaped protrusion; 301c, annular arc-shaped protrusion; 301d, corrugated flow channel groove; 4, lower bottom plate; 5, clamping plate; 501, refrigerant inlet joint; 501a, refrigerant inlet flow channel groove; 502, refrigerant outlet joint; 502a, refrigerant outlet flow channel groove; 503, coolant inlet joint; 503a, coolant inlet flow channel groove; 504, coolant outlet joint; 504a, coolant outlet flow channel groove; 6, positioning hole. Specific embodiments

[0032] The following will describe in detail the specific embodiments of the application of the present utility model with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only for the purpose of illustration and explanation of the present disclosure, and are not used to limit the present disclosure.

[0033] In the technical solution disclosed in the application of the present utility model, unless otherwise specified, the orientation terms such as "upper, lower, left, right" are usually defined based on the drawing direction of the corresponding drawing. In addition, it should be noted that the terms such as "first, second" are used to distinguish one element from another, and do not have an order or importance. In addition, in the description with reference to the drawings, the same reference numerals in different drawings represent the same elements.

[0034] According to the first aspect of the application of the present utility model, a plate heat exchanger is disclosed, as shown in Figure 1 , Figure 2 , Figure 3 shown, including: a clamping plate 5, on the lower end face, a refrigerant inlet joint 501, a refrigerant outlet joint 502, a coolant inlet joint 503, and a coolant outlet joint 504 are centrally provided;

[0035] On the upper end face of the clamping plate 5, there are respectively made:

[0036] The refrigerant inlet flow channel groove 501a is communicated with the refrigerant inlet joint 501;

[0037] The refrigerant outlet flow channel groove 502a is communicated with the refrigerant outlet joint 502;

[0038] The coolant inlet flow channel groove 503a is communicated with the coolant inlet joint 503;

[0039] The coolant outlet flow channel groove 504a is communicated with the coolant outlet joint 504;

[0040] The core body 3 is installed on the upper end surface of the pressing plate 5. The core body 3 is respectively communicated with the refrigerant inlet flow channel groove 501a and the refrigerant outlet flow channel groove 502a to form a first flow channel. After the refrigerant flows into the core body 3 from the refrigerant inlet joint 501, it flows out from the refrigerant outlet joint 502;

[0041] The core body 3 is also respectively communicated with the coolant inlet flow channel groove 503a and the coolant outlet flow channel groove 504a to form a second flow channel. After the coolant flows into the core body 3 from the coolant inlet joint 503, it flows out from the coolant outlet joint 504;

[0042] The top plate 1 is installed on the upper end surface of the core body 3.

[0043] In the above technical solution, compared with the situation where each joint is dispersedly arranged on the lower end surface of the pressing plate 5, concentrating each joint on the lower end surface of the pressing plate 5 makes the plate heat exchanger further promote the reasonable utilization of the vehicle interior space and improve the utilization rate of the remaining space inside the vehicle under the condition of the same volume size and the same occupied space inside the vehicle, reducing the waste of the vehicle interior space. The specific process is as follows: for the first flow channel, the refrigerant enters the core body 3 from the refrigerant inlet joint 501; for the second flow channel, the coolant enters the core body 3 from the coolant inlet joint 503. The two fully conduct heat exchange in the two flow channels of the core body 3. After the heat exchange is completed, the refrigerant then flows out of the core body 3 and finally flows out from the refrigerant outlet joint 502, while the coolant also flows out of the core body 3 and finally flows out from the coolant outlet joint 504. On the basis of ensuring the normal heat exchange function of the vehicle heat exchanger, this design maximally controls the volume occupied by the plate heat exchanger in the vehicle, avoids its excessive and unreasonable occupation of the vehicle interior space, solves the problem of waste of the vehicle interior space, achieves the technical effect of improving the utilization rate of the vehicle space, is scientific and reasonable, meets the customer's requirements for the product, and finally realizes the purpose of improving economic benefits.

[0044] Furthermore, in this embodiment, as Figure 1 、 Figure 2 、 Figure 3As shown, the refrigerant inlet joint 501, the refrigerant outlet joint 502, the coolant inlet joint 503 and the coolant outlet joint 504 are centrally arranged at the middle of the lower end surface of the pressing plate 5;

[0045] One end notches of the refrigerant inlet flow channel groove 501a, the refrigerant outlet flow channel groove 502a, the coolant inlet flow channel groove 503a and the coolant outlet flow channel groove 504a are all concentrated in the middle of the pressing plate 5, and the other end notches are respectively located at the four corners of the pressing plate 5. This design makes the manufacturing process of the four flow channels on the pressing plate 5 simpler and more convenient, and overall, it is more material-saving for the manufacturing of the component pressing plate 5.

[0046] In this embodiment, if Figure 3 As shown, the pressing plate 5 is provided with positioning holes 6, which are used in the process of assembling the plate heat exchanger.

[0047] In this embodiment, if Figure 1 , Figure 4 As shown, the core 3 is composed of a plurality of stacked chips 301, and through holes 301a are formed at the four corners of the chips 301 for circulating fluid. Through holes 301a are formed at the four corners of each chip 301, and channels for fluid flow are formed between each adjacent chip 301, and the number of chips 301 can be increased or decreased as needed. In some embodiments, as Figure 4 As shown, the chip 301 is also provided with a corrugated flow channel 301d. The main purpose of this design is to increase the rigidity of the chip 301, improve the pressure resistance, and prevent the chip 301 from deforming when under pressure. At the same time, it also enhances the turbulence of the fluid and increases the heat exchange area. In addition, the corrugated structure of the flow channel is staggered in the fluid channel formed between two adjacent chips 301. The fluid advances in the spiral track formed by these contacts, generating strong disturbances and promoting turbulence. Therefore, in summary, this design improves the heat exchange performance of the plate heat exchanger as a whole.

[0048] In this embodiment, if Figure 4 , Figure 5As shown, at the edges of two corners on one side of the lower end face of the chip 301, L-shaped protrusions 301b are respectively made. On the other side, the two through holes 301a respectively extend downward along the hole walls to form annular arc-shaped protrusions 301c. The design of the L-shaped protrusions 301b and the annular arc-shaped protrusions 301c is beneficial to connecting the adjacent upper and lower chips 301 during the assembly of this plate heat exchanger and the overall brazing of this plate heat exchanger. At the same time, the structure of the L-shaped protrusions 301b and the annular arc-shaped protrusions 301c of the chip 301 can form multi-level, independent and sealed flow channels in the core body 3. Moreover, the L-shaped protrusion structure 301b can also reduce the resistance generated by the medium flow, thereby reducing the water resistance of this plate heat exchanger and producing the effect of low water resistance and high performance.

[0049] In this embodiment, as Figure 1 、 Figure 6 、 Figure 7 shown, this plate heat exchanger further includes:

[0050] A lower bottom plate 4, installed between the core body 3 and the pressing plate 5;

[0051] An upper top plate 2, installed between the core body 3 and the top plate 1;

[0052] Holes for fluid circulation are made at the four corners of the lower bottom plate 4 and the upper top plate 2. The upper top plate 2 and the lower bottom plate 4 are respectively installed on the upper and lower end faces of the core body 3, which can make the performance of this plate heat exchanger better.

[0053] On the basis of the above technical solutions, the second aspect of the present disclosure further provides an automobile, including the above plate heat exchanger. Since the automobile provided by the present disclosure has all the characteristics and beneficial effects of the above plate heat exchanger, to avoid repetition, it will not be elaborated here.

[0054] The working process of this plate heat exchanger is exemplarily described in this utility model application as follows:

[0055] During the working process of the automobile heat exchanger in summer,

[0056] S1. The coolant flowing through the surface of the power battery passes through the coolant inlet joint 503 of the pressing plate 5 and flows into the core body 3 of the heat exchanger through the coolant inlet flow channel groove 503a. At the same time, the refrigerant passes through the refrigerant inlet joint 501 of the pressing plate 5 and flows into the core body 3 of the heat exchanger through the refrigerant inlet flow channel groove 501a;

[0057] S2. The refrigerant cools down the coolant at a high temperature inside the core body 3 through heat conduction. The cooled coolant finally flows out from the coolant outlet joint 504 at the lower end face of the pressing plate 5 through the coolant outlet channel groove 504a, and then flows back to the surface of the power battery to cool the power battery; while the refrigerant after completing the heat exchange finally flows out from the refrigerant outlet joint 502 of the pressing plate 5 through the refrigerant outlet channel groove 502a, and thus the heat exchange work is completed.

[0058] The preferred embodiments of the present application for the utility model have been described in detail above in conjunction with the accompanying drawings. However, the present application is not limited to the specific details in the above embodiments. Within the scope of the disclosed technical concept, various simple modifications can be made to the technical solutions of the present application for the utility model, and these simple modifications all fall within the protection scope of the present application.

[0059] In addition, it should be noted that, among the various specific technical features described in the above specific embodiments, they can be combined in any suitable manner without contradiction. To avoid unnecessary repetition, the present application will not separately describe various possible combination methods.

[0060] Furthermore, any combination can be made between various different embodiments of the present application for the utility model, as long as it does not violate the idea of the present disclosure, and it should also be regarded as the content disclosed in the present application for the utility model.

Claims

1. A plate heat exchanger, characterized in that: include: The pressing plate (5) has a lower end surface centrally provided with a refrigerant inlet joint (501), a refrigerant outlet joint (502), a coolant inlet joint (503), and a coolant outlet joint (504); The upper end surface of the pressing plate (5) is respectively provided with: A refrigerant inlet flow channel (501a) connected to the refrigerant inlet connector (501); A refrigerant outlet flow channel groove (502a) connected to the refrigerant outlet joint (502); A coolant inlet flow channel (503a) connected to the coolant inlet connector (503); A coolant outlet flow channel (504a) connected to the coolant outlet connector (504); The core body (3) is installed on the upper end surface of the pressure plate (5), and the core body (3) is respectively connected with the refrigerant inlet flow channel groove (501a) and the refrigerant outlet flow channel groove (502a) to form a first flow channel. The refrigerant flows from the refrigerant inlet joint (501) into the core body (3) and then flows out from the refrigerant outlet joint (502); The core body (3) is also connected to the coolant inlet flow channel groove (503a) and the coolant outlet flow channel groove (504a) respectively to form a second flow channel, and the coolant flows from the coolant inlet joint (503) into the core body (3) and then flows out from the coolant outlet joint (504); The top plate (1) is mounted on the upper end surface of the core (3).

2. The plate heat exchanger according to claim 1, characterized in that: The refrigerant inlet joint (501), the refrigerant outlet joint (502), the coolant inlet joint (503) and the coolant outlet joint (504) are centrally arranged at the middle of the lower end surface of the pressing plate (5); One end slots of the refrigerant inlet flow channel groove (501a), the refrigerant outlet flow channel groove (502a), the coolant inlet flow channel groove (503a) and the coolant outlet flow channel groove (504a) are all concentrated in the middle of the pressure plate (5), and the other end slots are respectively located at the four corners of the pressure plate (5).

3. The plate heat exchanger according to claim 2, characterized in that: The pressing plate (5) is provided with a positioning hole (6).

4. The plate heat exchanger according to claim 3, characterized in that: The core body (3) is composed of a plurality of stacked chips (301), and through holes (301a) are respectively formed at the four corners of the chip (301) for circulating fluid.

5. The plate heat exchanger according to claim 4, characterized in that: The chip (301) is provided with a corrugated flow channel groove (301d).

6. The plate heat exchanger according to claim 5, characterized in that: The edges of the two corners on one side of the lower end surface of the chip (301) are respectively provided with L-shaped protrusions (301b), and the two through holes (301a) on the other side respectively extend downward along the hole wall to form annular arc-shaped protrusions (301c).

7. The plate heat exchanger according to any one of claims 1 to 6, characterized in that: Also includes: A lower base plate (4) installed between the core (3) and the pressing plate (5); An upper top plate (2) installed between the core (3) and the top plate (1); The four corners of the lower base plate (4) and the upper top plate (2) are provided with holes for fluid circulation.

8. A car, characterized in that: Comprising the plate heat exchanger according to any one of claims 1 to 7.

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