Plate heat exchanger with built-in liquid storage tank and automobile heat management system

Abstract

The utility model relates to the technical field of plate heat exchangers, in particular to a plate heat exchanger with a built-in liquid storage tank and an automobile heat management system. The plate heat exchanger with the built-in liquid storage tank comprises a plate heat exchanger body and a cover body assembly. The plate heat exchanger body comprises a first cavity, a top plate and a bottom plate, the top plate is provided with a first medium inlet, a second medium inlet and a second medium outlet, the bottom plate is provided with a first medium outlet, the first medium inlet communicates with the first medium outlet through a first flow channel, and the second medium inlet communicates with the second medium outlet through a second flow channel. The first cavity communicates with the first medium outlet and the first flow channel. The cover body assembly is connected with the bottom plate, so that the cover body assembly and the first cavity jointly form a built-in liquid storage tank structure; a through hole is formed in the cover body assembly and communicates with the first medium outlet. The plate heat exchanger with the built-in liquid storage tank is high in integration level, the installation space can be saved, the working efficiency of assembly is improved, and the purpose of saving cost is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to plate heat exchanger technical field especially relates to a built -in liquid storage tank's plate heat exchanger and car heat management system. BACKGROUND

[0002] Car heat management system includes plate heat exchanger, liquid storage tank, compressor and a variety of components. The heat storage tank in prior art is usually arranged at the outside of plate heat exchanger, occupies larger installation layout space, thereby reduce the integration of car heat management system, simultaneously, the liquid storage tank in prior art needs to configure thicker liquid storage tank cylinder to realize the storage effect to medium, increases the part cost and weight, reduces the working efficiency of assembly.

[0003] Therefore, it is urgent to design a built -in liquid storage tank's plate heat exchanger and car heat management system to solve the above technical problems. UTILITY MODEL CONTENT

[0004] The first purpose of the utility model is to provide a built -in liquid storage tank's plate heat exchanger, simple structure, small size, high integration, improve the working efficiency of assembly, save the cost.

[0005] To achieve this purpose, the utility model adopts the following technical scheme:

[0006] The utility model provides a built -in liquid storage tank's plate heat exchanger, comprising:

[0007] Plate heat exchanger body, the plate heat exchanger body includes oppositely arranged top plate and bottom plate, the top plate is provided with first medium inlet, second medium inlet and second medium outlet, the bottom plate is provided with first medium outlet, the plate heat exchanger body is provided with mutually isolated first flow channel and second flow channel, the first medium inlet is communicated with the first medium outlet through the first flow channel, the second medium inlet is communicated with the second medium outlet through the second flow channel;

[0008] The first cavity is communicated with the first medium outlet and the first flow channel in the plate heat exchanger body;

[0009] Cover body assembly, the cover body assembly is connected with the bottom plate, so that the cover body assembly and the first cavity form built -in liquid storage tank structure together;The cover body assembly is provided with through -hole, and the through -hole is communicated with the first medium outlet.

[0010] As an optional technical scheme of a built -in liquid storage tank's plate heat exchanger, the first cavity is provided with drying bag and filter, the drying bag is configured to dry the first medium, and the filter is configured to filter the first medium.

[0011] As an alternative technical solution of the plate heat exchanger with an internal liquid storage tank, the bottom plate is provided with a flange extending away from the top plate, and the cover assembly is connected with the flange.

[0012] As an alternative technical solution of the plate heat exchanger with an internal liquid storage tank, the cover assembly is further provided with a sealing ring in interference fit with the inner wall of the flange.

[0013] As an alternative technical solution of the plate heat exchanger with an internal liquid storage tank, the cover assembly is further provided with external threads, and the inner wall of the flange is provided with internal threads in screw connection with the external threads.

[0014] As an alternative technical solution of the plate heat exchanger with an internal liquid storage tank, the cover assembly is provided with a snap spring in snap connection with the inner wall of the flange.

[0015] As an alternative technical solution of the plate heat exchanger with an internal liquid storage tank, the plate heat exchanger body has a plurality of first plates and a plurality of second plates, and the first plates and the second plates are arranged alternately.

[0016] A first flow channel is formed between one side of the first plate and the adjacent second plate, and a second flow channel is formed between the other side of the first plate and the adjacent second plate, and a first medium in the first flow channel and a second medium in the second flow channel flow in opposite directions.

[0017] As an alternative technical solution of the plate heat exchanger with an internal liquid storage tank, the first flow channel is provided with a first fin, and the second flow channel is provided with a second fin.

[0018] As an alternative technical solution of the plate heat exchanger with an internal liquid storage tank, the first plate and / or the second plate is provided with N guide ribs configured to change the flow direction of the first medium and / or the second medium.

[0019] In the X-axis direction, the adjacent two guide ribs are arranged in staggered manner, so that the first medium forms N+1 flow processes in the first flow channel, and / or the second medium forms N+1 flow processes in the second flow channel.

[0020] The second purpose of the present application is to provide an automobile thermal management system, which has simple structure, small size, high integration, can improve the work efficiency of assembly, and achieve the purpose of saving cost.

[0021] To achieve this purpose, the utility model adopts the following technical scheme:

[0022] The utility model provides a kind of automobile thermal management system, the automobile thermal management system includes the plate heat exchanger of built-in liquid storage tank above.

[0023] The utility model has at least the following beneficial effects:

[0024] The utility model provides a kind of plate heat exchanger of built-in liquid storage tank, the plate heat exchanger of built-in liquid storage tank includes plate heat exchanger body and cover body assembly. Among them, plate heat exchanger body includes oppositely arranged top plate and bottom plate, top plate is provided with first medium inlet, second medium inlet and second medium outlet, and bottom plate is provided with first medium outlet, and first flow channel and second flow channel isolated from each other are arranged in plate heat exchanger body, first medium inlet is communicated with first medium outlet by first flow channel, and second medium inlet is communicated with second medium outlet by second flow channel. First cavity is also provided in plate heat exchanger body, and first cavity is communicated with first medium outlet and first flow channel. Cover body assembly is connected with bottom plate to make cover body assembly and first cavity form built-in liquid storage tank structure together;Through hole is provided on cover body assembly, and through hole is communicated with first medium outlet.

[0025] Above, by setting first cavity in plate heat exchanger body, cover body assembly is connected with bottom plate to make cover body assembly and first cavity form built-in liquid storage tank structure together, so as to realize the purpose that liquid storage tank is built in plate heat exchanger body. The through hole on cover body assembly is communicated with the first medium outlet on bottom plate, so that the first medium can flow out of plate heat exchanger body, to realize the circulation flow of first medium. Generally, the pressure of first medium in first flow channel is almost the same as the pressure of second medium in second flow channel, so the thickness of plate heat exchanger body can meet the sealing condition of liquid storage tank in the prior art, so that the cylinder structure in the prior art is not needed, the use of parts is reduced, the assembly efficiency is improved, and the cost is saved. At the same time, the space surrounded by first cavity and cover body assembly is used as built-in liquid storage tank structure, which not only realizes the purpose that liquid storage tank is built in plate heat exchanger, saves installation space and improves the integration of the automobile thermal management system. At the same time, the heat exchange area of plate heat exchanger body can be increased, and the heat exchange efficiency is improved.

[0026] The utility model also provides a kind of automobile thermal management system, which is simple in structure, small in size, high in integration, can improve the work efficiency of assembly and achieve the purpose of cost saving. BRIEF DESCRIPTION OF DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the description of the embodiments of the present application. Obviously, the drawings described in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained according to the contents of the embodiments of the present application and the drawings without any creative effort.

[0028] Figure 1 is a structural schematic view of the plate heat exchanger with the built-in liquid storage tank provided by the embodiments of the present application;

[0029] Figure 2 is an explosion view of the plate heat exchanger with the built-in liquid storage tank provided by the embodiments of the present application; Figure 1 ;

[0030] Figure 3 is a first medium flow direction schematic view of the plate heat exchanger with the built-in liquid storage tank provided by the embodiments of the present application;

[0031] Figure 4 is a top view of the first plate provided by the embodiments of the present application;

[0032] Figure 5 is a structural schematic view of the first fin provided by the embodiments of the present application.

[0033] Reference signs

[0034] 100, plate heat exchanger body; 110, top plate; 120, bottom plate; 1201, flange; 130, first medium inlet; 140, first medium outlet; 150, second medium inlet; 160, second medium outlet; 170, first flow channel; 180, second flow channel; 190, first cavity; 1001, first plate; 1002, second plate; 1003, first fin; 1004, second fin; 1005, avoiding position; 1006, guide rib;

[0035] 200, cover assembly; 210, through hole;

[0036] 300, drying bag; 400, filter; 500, sealing ring; 600, clasp spring. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical solutions and advantages of the embodiments of the present application more clear, the following will combine the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, not all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0038] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of the application. Based upon the embodiments of the present application, all other embodiments that would be obvious to one of ordinary skill in the art based upon the present application are intended to be within the scope of the present application.

[0039] It should be noted that like reference numerals and letters refer to like items in the several views of the drawings, and as such, definitions and explanations of such items need not be repeated in further detail in the several views.

[0040] In the description of the present application, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the present application is usually placed during use, and are merely for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third", and the like are merely used for differentiation in description and cannot be understood as indicating or implying relative importance. In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0041] In the description of the present application, it should also be noted that, unless otherwise explicitly specified and limited, the terms "provided", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected. For those of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0042] In the present application, unless otherwise explicitly specified and limited, "on" or "under" of a first feature to a second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, "on", "above", and "on" of the first feature to the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. "Below", "below", and "below" of the first feature to the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0043] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0044] This embodiment provides a plate heat exchanger with a built-in liquid storage tank, which has a simple structure, small size, and high integration, thereby improving assembly efficiency and achieving cost savings.

[0045] like Figures 1-3 As shown, the plate heat exchanger with an internal storage tank mainly includes a plate heat exchanger body 100 and a cover assembly 200. The plate heat exchanger body 100 includes a top plate 110 and a bottom plate 120 arranged opposite each other. The top plate 110 is provided with a first medium inlet 130, a second medium inlet 150, and a second medium outlet 160. The bottom plate 120 is provided with a first medium outlet 140. The plate heat exchanger body 100 has a first flow channel 170 and a second flow channel 180 that are isolated from each other. The first medium inlet 130 is connected to the first medium outlet 140 through the first flow channel 170, and the second medium inlet 150 is connected to the second medium outlet 160 through the second flow channel 180. The plate heat exchanger body 100 also has a first cavity 190, which is connected to both the first medium outlet 140 and the first flow channel 170. The cover assembly 200 is connected to the base plate 120 so that the cover assembly 200 and the first cavity 190 together form an internal liquid storage tank structure; the cover assembly 200 is provided with a through hole 210, which is connected to the first medium outlet 140.

[0046] Based on the above design, in the embodiment, the first cavity 190 is arranged inside the plate heat exchanger body 100, and the cover assembly 200 is connected with the bottom plate 120, so that the cover assembly 200 and the first cavity 190 jointly form an embedded liquid storage tank structure, thereby achieving the purpose of embedding the liquid storage tank inside the plate heat exchanger body 100. The through hole 210 on the cover assembly 200 is in communication with the first medium outlet 140 on the bottom plate 120, thereby facilitating the outflow of the first medium from the plate heat exchanger body 100, so as to realize the circulating flow of the first medium. Generally, the pressure of the first medium in the first flow channel 170 is almost the same as the pressure of the second medium in the second flow channel 180, so the thickness of the plate heat exchanger body 100 can meet the sealing condition of the liquid storage tank in the prior art, thereby eliminating the need to set the cylinder structure in the prior art, reducing the use of parts, improving the assembly efficiency, and saving costs; at the same time, the space surrounded by the first cavity 190 and the cover assembly 200 is used as an embedded liquid storage tank structure, which not only realizes the purpose of embedding the liquid storage tank in the plate heat exchanger, saves installation space, and improves the integration of the automobile thermal management system; at the same time, it can also increase the heat exchange area of the plate heat exchanger body 100, thereby improving the heat exchange efficiency.

[0047] The first medium inlet 130, the first flow channel 170, the first cavity 190, and the second medium outlet 160 are sequentially communicated to form a flow path for the first medium to flow through. The second medium inlet 150, the second flow channel 180, and the second medium outlet 160 are sequentially communicated to form a flow path for the second medium to flow through. The first medium and the second medium exchange heat inside the plate heat exchanger.

[0048] Exemplarily, the first medium in the embodiment can be set as a refrigerant such as R134a, R1234yf or other kinds of refrigerants, and the second medium can be water, coolant, oil, etc.

[0049] As shown in Figures 2-3 In the embodiment, the first cavity 190 is provided with a drying bag 300 and a filter 400. The drying bag 300 is configured to dry the first medium, thereby reducing the water content of the refrigerant; and the filter 400 is configured to filter the first medium, thereby reducing impurities in the refrigerant.

[0050] The drying bag 300 is provided with common drying agents on the market, such as calcium oxide, aluminum oxide, silica gel, etc. The filter material in the filter 400 can be a metal filter screen, glass wool, activated carbon, etc.

[0051] As shown in Figures 1-2As shown, in the embodiment, the bottom plate 120 is provided with a flange 1201 extending away from the top plate 110, and the cover assembly 200 is connected with the flange 1201. The flange 1201 facilitates the convenience and reliability of the connection of the bottom plate 120 of the cover assembly 200, and reduces the risk of the cover assembly 200 falling off.

[0052] Further, the cover assembly 200 in the embodiment is further provided with a sealing ring 500, which is in interference fit with the inner wall of the flange 1201, thereby improving the sealing performance of the built-in liquid storage tank structure and reducing or avoiding leakage of the first medium.

[0053] Optionally, in the embodiment, the cover assembly 200 is provided with a circlip 600, which is connected with the inner wall of the flange 1201 in a clamping manner, thereby achieving the connection of the cover assembly 200 and the bottom plate 120, facilitating the subsequent disassembly of the cover assembly 200 to realize the replacement of the filter 400 and the drying bag 300, and being convenient and efficient to operate.

[0054] Optionally, in some optional embodiments, the cover assembly 200 is further provided with an external thread, and the inner wall of the flange 1201 is provided with an internal thread, which is screwed with the external thread, thereby achieving the threaded connection of the cover assembly 200 and the bottom plate 120, facilitating the subsequent disassembly of the cover assembly 200 to realize the replacement of the filter 400 and the drying bag 300, and being convenient and efficient to operate.

[0055] As shown, Figure 2 In the embodiment, the plate heat exchanger body 100 has a plurality of first plates 1001 and a plurality of second plates 1002, and the first plates 1001 and the second plates 1002 are arranged alternately. A first flow channel 170 is formed between one side of the first plate 1001 and the adjacent second plate 1002, and a second flow channel 180 is formed between the other side of the first plate 1001 and the adjacent second plate 1002. The first medium in the first flow channel 170 and the second medium in the second flow channel 180 flow in opposite directions, thereby improving the heat exchange efficiency of the first medium and the second medium. The first flow channel 170 and the second flow channel 180 are isolated from each other to avoid the risk of mixing of the first medium and the second medium.

[0056] As shown, Figure 4 The first plate 1001 and / or the second plate 1002 is provided with N guide ribs 1006, which are configured to change the flow direction of the first medium and / or the second medium. Along the X-axis direction, two adjacent guide ribs 1006 are arranged in a staggered manner, so that the first medium forms N+1 flow processes in the first flow channel 170, and / or the second medium forms N+1 flow processes in the second flow channel 180. N is a positive integer, for example, N can be set to 1, 2, 3, etc.

[0057] For example, two guide ribs 1006 may be provided on the first plate 1001, and the two guide ribs 1006 are staggered along the X-axis. The provision of the two guide ribs 1006 can increase the flow path of the first medium, thereby making the heat exchange of the first medium more complete and improving the heat exchange efficiency. By providing two guide ribs 1006 in the first plate 1001, the first medium forms a three-pass flow within the first flow channel 170, which increases the flow velocity of the first medium, making the heat exchange more complete and improving the heat exchange efficiency.

[0058] Similarly, operators can also set different numbers of guide ribs 1006 in the second plate 1002 to make the second medium form multiple flows in the second flow channel 180, which will not be elaborated here.

[0059] Compared with the prior art, this embodiment can achieve the three-pass purpose of the first medium in the first flow channel 170 and / or the three-pass purpose of the second medium in the second flow channel 180 without the need to set up a drainage pipe. This simplifies the structure of the plate heat exchanger with built-in liquid storage tank, reduces the use of parts, and has a simple structure, saving costs. At the same time, it can also reduce the risk of welding failure of the drainage pipe.

[0060] like Figure 5 As shown, in this embodiment, a first fin 1003 is disposed in the first flow channel 170, and a second fin 1004 is disposed in the second flow channel 180. The arrangement of the first fin 1003 and the second fin 1004 can increase the heat transfer area, thereby improving the heat transfer efficiency of the plate heat exchanger. At the same time, the arrangement of the first fin 1003 and the second fin 1004 can respectively support and reinforce the first plate 1001 and the second plate 1002, improving the mechanical strength of the first plate 1001 and the second plate 1002.

[0061] Furthermore, in this embodiment, the first fin 1003 and / or the second fin 1004 are provided with a clearance position 1005, which is used to avoid the guide rib 1006.

[0062] Optionally, the first fin 1003 and the second fin 1004 in this embodiment can both be configured as straight fins, serrated fins, porous fins, corrugated fins, louvered fins, and other types.

[0063] Optionally, in some embodiments, the first medium inlet 130, the first medium outlet 140, the second medium inlet 150, and the second medium outlet 160 can all be disposed on the top plate 110, and the first medium inlet 130 and the first medium outlet 140 are disposed diagonally, as are the second medium inlet 150 and the second medium outlet 160.

[0064] The embodiment also provides an automobile thermal management system, which comprises the plate heat exchanger with the built-in liquid storage tank.

[0065] The automobile thermal management system has simple structure, small size, high integration, can improve the work efficiency of assembly, and achieves the purpose of saving cost.

[0066] Obviously, the above only the preferred embodiments of the present application and the use of technical principles. Those skilled in the art will understand that the present application is not limited to the specific embodiments here, those skilled in the art can make various obvious changes, re-adjustment and replacement without departing from the scope of the present application. Therefore, although the above embodiments of the present application are described in more detail, the present application is not limited to the above embodiments, without departing from the concept of the present application, can also include more other equivalent embodiments, and the scope of the present application is determined by the appended claims.

[0067] Note that in the description of the present specification, the description referring to the terms "some embodiments", "other embodiments", and the like means that the specific features, structures, materials or characteristics described in connection with the embodiments or examples are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

Claims

1. Plate heat exchanger with built-in liquid reservoir, characterized in that The plate heat exchanger body (100) comprises oppositely arranged top plate (110) and bottom plate (120), the top plate (110) is provided with first medium inlet (130), second medium inlet (150) and second medium outlet (160), the bottom plate (120) is provided with first medium outlet (140), the plate heat exchanger body (100) is provided with mutually isolated first flow channel (170) and second flow channel (180), the first medium inlet (130) is communicated with the first medium outlet (140) through the first flow channel (170), the second medium inlet (150) is communicated with the second medium outlet (160) through the second flow channel (180); The plate heat exchanger body (100) is further provided with first cavity (190), the first cavity (190) is communicated with the first medium outlet (140) and the first flow channel (170); Cover assembly (200), the cover assembly (200) is connected with the bottom plate (120), so that the cover assembly (200) and the first cavity (190) form an internal liquid storage tank structure together;The through hole (210) is arranged on the cover assembly (200), and the through hole (210) is communicated with the first medium outlet (140). The first cavity (190) is provided with a drying bag (300) and a filter (400), the drying bag (300) is configured to dry the first medium, and the filter (400) is configured to filter the first medium.

2. The plate heat exchanger with built-in liquid reservoir according to claim 1, characterized in that The bottom plate (120) is provided with a flange (1201), the flange (1201) extends away from the top plate (110), and the cover assembly (200) is connected with the flange (1201).

3. The plate heat exchanger with built-in liquid reservoir according to claim 2, characterized in that The cover assembly (200) is further provided with a sealing ring (500), and the sealing ring (500) is in interference fit with the inner wall of the flange (1201).

4. The plate heat exchanger with built-in liquid reservoir according to claim 3, characterized in that The cover assembly (200) is further provided with an external thread, and the inner wall of the flange (1201) is provided with an internal thread, and the internal thread is screwed with the external thread.

5. The plate heat exchanger with built-in liquid reservoir according to claim 3, characterized in that The cover assembly (200) is provided with a clamping spring (600), and the clamping spring (600) is connected with the inner wall of the flange (1201) in clamping connection.

6. The plate heat exchanger with built-in liquid reservoir according to claim 3, characterized in that The plate heat exchanger body (100) has a plurality of first plates (1001) and a plurality of second plates (1002), the first plates (1001) and the second plates (1002) are arranged alternately; 7. The plate heat exchanger with built-in liquid reservoir according to claim 1, characterized in that The first flow channel (170) is surrounded by the first plate (1001) and the adjacent second plate (1002), and the second flow channel (180) is surrounded by the first plate (1001) and the adjacent second plate (1002), the first medium in the first flow channel (170) and the second medium in the second flow channel (180) form reverse flow. ​ 8. The plate heat exchanger with built-in liquid reservoir according to claim 7, characterized in that The first flow channel (170) is provided with a first fin (1003), and the second flow channel (180) is provided with a second fin (1004).

9. The plate heat exchanger with built-in liquid reservoir according to claim 7, characterized in that The first plate (1001) and / or the second plate (1002) are provided with N guide ribs (1006), which are configured to change the flow direction of the first medium and / or the second medium. In the X-axis direction, two adjacent guide ribs (1006) are arranged in a staggered manner, so that the first medium forms N+1 flow processes in the first flow channel (170), and / or the second medium forms N+1 flow processes in the second flow channel (180).

10. A vehicle thermal management system characterized by, The automobile thermal management system comprises the built-in liquid storage tank plate heat exchanger according to any one of claims 1-9.

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