CN219346836U

CN219346836U - Battery thermal management module and plate heat exchanger assembly applied by same

Info

Publication number: CN219346836U
Application number: CN202222874515.7U
Authority: CN
Inventors: 刘志刚; 左盛; 耿强; 李慧敏; 向文川; 孙键淇; 李和胜; 陆亚威
Original assignee: Powertrain Thermal Systems Branch of Valeo Automotive Air Conditioning Hubei Co Ltd
Current assignee: Powertrain Thermal Systems Branch of Valeo Automotive Air Conditioning Hubei Co Ltd
Priority date: 2022-10-27
Filing date: 2022-10-27
Publication date: 2023-07-14
Anticipated expiration: 2032-10-27

Abstract

The utility model relates to a battery thermal management module and a plate heat exchanger assembly applied to the battery thermal management module. Wherein, the plate heat exchanger subassembly includes at least: plate heat exchanger and expansion valve disk seat; the expansion valve seat is arranged on the plate heat exchanger; the plate heat exchanger comprises a first refrigerant port and a second refrigerant port; the expansion valve seat comprises a first seat channel and a second seat channel; the first valve seat port of the first valve seat channel is in communication with the first refrigerant port, and the third valve seat port of the second valve seat channel is in communication with the second refrigerant port. The expansion valve seat is directly arranged on the core body of the plate heat exchanger, so that the number of parts is reduced, and the requirements of light weight, small assembly volume and the like are met.

Description

Battery thermal management module and plate heat exchanger assembly applied by same

Technical Field

The utility model relates to the technical field of vehicle thermal management, in particular to a battery thermal management module and a plate heat exchanger assembly applied to the battery thermal management module.

Background

Plate heat exchangers and expansion valves are common components in battery thermal management modules. In general, after the plate heat exchanger is assembled with the expansion valve, the state of the refrigerant is controlled by the throttle action of the expansion valve, thereby performing heat exchange with the cooling liquid flowing through the expansion valve.

In general, an expansion valve connecting flange is welded on a core body of the plate heat exchanger, and an expansion valve seat is assembled with the connecting flange on the plate heat exchanger through screws, sealing gaskets and the like. However, such an assembly scheme has been difficult to meet the demands of customers for light weight, low cost, small space occupation, etc. on the whole vehicle.

Disclosure of Invention

In view of the above drawbacks of the prior art, an object of the present utility model is to provide a battery thermal management module and a plate heat exchanger assembly applied thereto, for solving the above problems of the prior art.

To achieve the above and other related objects, the present application provides a plate heat exchanger assembly, comprising at least: plate heat exchanger and expansion valve disk seat; the expansion valve seat is arranged on the plate heat exchanger; wherein the plate heat exchanger comprises a first refrigerant port and a second refrigerant port; the expansion valve seat comprises a first seat channel and a second seat channel; the first valve seat port of the first valve seat channel is in communication with the first refrigerant port, and the third valve seat port of the second valve seat channel is in communication with the second refrigerant port.

In an embodiment of the utility model, the plate heat exchanger assembly further comprises: a spool assembly and a coil assembly; wherein, the case subassembly inserts and locates the expansion valve disk seat.

In an embodiment of the present utility model, the expansion valve seat is a first expansion valve seat, and the coil assembly is a first coil assembly; the first expansion valve seat is provided with at least one mounting arm at the end part for mounting the valve core assembly; the at least one mounting arm is provided with a first mounting hole for fixing the first coil assembly; or the expansion valve seat is a second expansion valve seat, and the coil assembly is a second coil assembly; the second expansion valve seat is provided with a third mounting hole at the end part for mounting the valve core assembly, and the third mounting hole is used for fixing a bracket of the second coil assembly.

In an embodiment of the utility model, the expansion valve seat is integrated.

In an embodiment of the utility model, the expansion valve seat is split; the split expansion valve seat comprises a first valve seat and a second valve seat, wherein the first valve seat channel is arranged on the first valve seat, and the second valve seat channel is arranged on the second valve seat.

In an embodiment of the present utility model, the valve core assembly is inserted into the first valve seat; the first valve seat is provided with two mounting arms at the end part for mounting the valve core assembly; the two mounting arms are respectively arranged on two sides of the end part.

In an embodiment of the present utility model, a second mounting hole is provided near the second valve seat port of the first valve seat channel and/or the fourth valve seat port of the second valve seat channel for connecting the counter piece.

In an embodiment of the present utility model, at least one first positioning portion is disposed on a bottom surface of the expansion valve seat; at least one second positioning part is arranged on the surface of the top plate of the plate heat exchanger; the at least one first positioning part is matched with the at least one second positioning part.

In one embodiment of the utility model, the expansion valve seat is welded to the plate heat exchanger.

To achieve the above and other related objects, the present application provides a battery thermal management module including a plate heat exchanger assembly as described above.

The battery thermal management module and the plate heat exchanger component applied to the same have the advantages that the expansion valve seat is directly arranged on the core body of the plate heat exchanger, the number of parts is reduced, the production cost is reduced, and the requirements of light weight, small assembly volume and the like are met. In addition, compared with the valve seat of the integrated expansion valve, the valve seat of the split expansion valve has lighter weight and simple process, and is more convenient for flexible arrangement on the core body.

Drawings

The above and other features, properties and advantages of the present utility model will become more apparent from the following description in conjunction with the accompanying drawings and embodiments, in which:

FIG. 1 is a schematic view of a plate heat exchanger assembly according to an embodiment of the present utility model;

FIG. 2 is a schematic view of the plate heat exchanger of FIG. 1;

FIGS. 3 a-3 b are schematic views of the first valve seat of FIG. 1 at different viewing angles;

FIG. 4 is a schematic view of the coil assembly of FIG. 1;

FIGS. 5 a-5 b are schematic views of the second valve seat of FIG. 1 at different viewing angles;

FIG. 6 is a schematic view of the longitudinal cross-sectional structure of FIG. 3 a;

fig. 7 is a schematic structural view of a plate heat exchanger assembly according to another embodiment of the present utility model.

Detailed Description

The following discloses various embodiments or examples of the subject technology of the different implementations. Specific examples of components and arrangements are described below for purposes of simplifying the disclosure, and of course, these are merely examples and are not intended to limit the scope of the utility model. For example, a first feature described later in this specification may be distributed over a second feature, and may include embodiments in which the first and second features are distributed in a direct relationship, and may also include embodiments in which additional features are formed between the first and second features, such that no direct relationship between the first and second features is possible. In addition, the reference numerals and/or letters may be repeated in the various examples. This repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. Further, where a first element is described as being coupled or combined with a second element, the description includes embodiments in which the first and second elements are directly coupled or combined with each other, and also includes embodiments in which one or more other intervening elements are added to indirectly couple or combine the first and second elements with each other.

It is noted that the drawings are by way of example only, are not drawn to scale, and should not be construed to limit the scope of the utility model as actually claimed.

Referring to fig. 1, fig. 1 is a plate heat exchanger assembly 1 in an embodiment of the present application.

The plate heat exchanger assembly 1 comprises: plate heat exchanger 2, electronic expansion valve, wherein, electronic expansion valve includes: an expansion valve seat 3 (i.e., a first expansion valve seat), a spool assembly 4, a coil assembly 5 (i.e., a first coil assembly). In particular, the expansion valve seat 3 is directly fixed to the plate heat exchanger 2, more particularly the expansion valve seat 3 is welded to the core of the plate heat exchanger 2. The plate heat exchanger assembly 1 will be described in detail below.

As shown in fig. 1, the core of the plate heat exchanger 2 is formed by stacking a plurality of plates, each plate having a through hole, and a core flow passage is formed inside the plate heat exchanger 2 after stacking. The plate heat exchanger 2 has two separate core flow channels at its left end, wherein one core flow channel has a first coolant tube 25 at its port and the other core flow channel has a second coolant tube 26 at its port. As shown in fig. 2, the plate heat exchanger 2 has two independent core flow passages at the right end thereof, wherein one of the core flow passages has a first refrigerant port 21 as a port, and the other core flow passage has a second refrigerant port 22 as a port. The plate heat exchanger 2 is provided with a coolant and a refrigerant for heat exchange, and the internal structure of the core is not innovative in the present application, and therefore will not be described in detail.

Referring to fig. 1 and 6, the valve core assembly 4 is assembled with the coil assembly 5 into a unitary structure, and then inserted into the expansion valve seat 3, and then the coil assembly 5 is fixed to the expansion valve seat 3.

Referring to fig. 1, the expansion valve seat 3 includes a first seat passage 31 and a second seat passage 32. The expansion valve seat 3 may be of an integral structure or a split structure. In the present embodiment, the split expansion valve seat 3 includes: the first valve seat 3a shown in fig. 3a and 3b, and the second valve seat 3b shown in fig. 5a and 5 b. Wherein, a first valve seat channel 31 is arranged in the first valve seat 3a, and a second valve seat channel 32 is arranged in the second valve seat 3b.

Referring to the first valve seat 3a shown in fig. 3a and 3b, the first valve seat port 31a of the first valve seat channel 31 is configured to communicate with the first refrigerant port 21, the second valve seat port 31b of the first valve seat channel 31 is configured to communicate with an external opponent tube, and the second mounting hole 35 near the second valve seat port 31b is configured to fix the opponent tube, for example, threads are provided in the second mounting hole 35, and the opponent tube can be fixed in the second mounting hole 35 by a bolt. The bore 37 of the first valve seat 3a allows the insert of the valve element assembly 4 to connect the valve element assembly 4 with the first valve seat channel 31.

In this embodiment, the first valve seat 3a is generally cross-shaped, and the left and right sides thereof extend respectively to the mounting arms 33. The mounting arm 33 is provided with a first mounting hole 34 at the end of the mounting spool assembly 4. In other embodiments, the valve seat of the integrated expansion valve is also provided with mounting arms on two sides close to the valve core assembly 4, the mounting arms may also be fins grown from the side surface of the valve seat of the expansion valve, the outer contour shape of the fins is arbitrary, such as polygonal, semicircular, etc., and the first mounting holes are formed on the fins.

As shown in fig. 2 and 3b, the plate heat exchanger 2 is provided with a second positioning portion 24 on the top plate 23, which is specifically disposed at a position close to the first refrigerant port 21, and the first valve body 3a is provided with a first positioning portion 36 at the bottom, which is adapted to the position and shape of the second positioning portion 24, specifically, the second positioning portion 24 is a convex portion, and the first positioning portion 36 is a concave portion, and the two portions are clamped and connected to define the positions of the plate heat exchanger 2 and the first valve seat 3 a.

Referring to fig. 4, the coil block 5 of the present embodiment is provided with bolt sleeves 51 on both left and right sides thereof, and bolts 52 are provided inside thereof. The bolt 52 may be rotated clockwise or counterclockwise within the bolt sleeve 51 so as to advance or retreat in the length direction of the bolt sleeve 51. The position and external threads of the bolt 52 are respectively matched with the position and internal threads of the first mounting hole 34, when the bolt 52 is screwed into the first mounting hole 34, the coil assembly 5 and the expansion valve seat 3 can be fixedly connected, and when the bolt 52 is screwed out of the first mounting hole 34, the coil assembly 5 and the expansion valve seat 3 can be separated.

Referring to fig. 5a and 5b, the third seat port 32a of the second seat channel 32 is configured to communicate with the second refrigerant port 22, the fourth seat port 32b of the second seat channel 32 is configured to communicate with an external opponent tube, and the second mounting hole 35' near the fourth seat port 32b is configured to fix the opponent tube, for example, the second mounting hole 35' is internally provided with threads, and the opponent tube is fixed in the second mounting hole 35' by a bolt. Further, a limiting surface 35a is disposed in the second mounting hole 35' for limiting the position of the opponent tube.

As shown in fig. 2 and 5b, the plate heat exchanger 2 is provided with a second positioning portion 24' on the top plate 23, which is specifically disposed at a position close to the second refrigerant port 21, and the second valve body 3b is provided with a first positioning portion 36' at the bottom, which is adapted to the position and shape of the second positioning portion 24', specifically, the second positioning portion 24' is a convex portion, and the first positioning portion 36' is a concave portion, and the two are connected to define the positions of the plate heat exchanger 2 and the second valve seat 3b.

Referring to fig. 2 and 6, the refrigerant enters the first valve seat channel 31 through the second valve seat port 31b, and after being throttled and expanded by the valve core assembly 4, flows out through the second valve seat port 31a, and then enters the core flow channel of the plate heat exchanger 2 through the first refrigerant port 21. After flowing out of the second refrigerant port 22 of the plate heat exchanger 2, the refrigerant enters the second valve seat passage 32 through the third valve seat port 32a, and flows out of the fourth valve seat port 32b of the second valve seat passage 32.

In this embodiment, the first valve seat 3a and the second valve seat 3b are two independent components, the second valve seat port 31b and the fourth valve seat port 32b are disposed on different end surfaces of the expansion valve seat 3, and the production process of the split expansion valve seat is simpler, which is also beneficial to reducing the volume and weight of the expansion valve seat 3, and further is beneficial to meeting the requirements of light weight, small volume and the like of the plate heat exchanger assembly.

In this embodiment, the bottom surface of the expansion valve seat 3 and the top plate 23 of the plate heat exchanger 2 are both planar, and are bonded and welded. Through the arrangement, after being throttled in the electronic expansion valve, the refrigerant can directly enter the core body of the plate heat exchanger 2 to exchange heat, so that the phenomenon of gas-liquid layering of the refrigerant caused by a connecting pipeline is reduced, gas-liquid mixing distribution is uniform, and the influence on heat exchange performance is less. In addition, the expansion valve seat and the plate heat exchanger are assembled without additionally adopting parts such as screws, sealing gaskets and the like, so that the expansion valve seat and the plate heat exchanger are simple in structure, good in anti-seismic effect and greatly reduced in refrigerant leakage risk.

Fig. 7 is a schematic view of a plate heat exchanger assembly according to another embodiment of the present utility model. Unlike the previous embodiments, the plate heat exchanger assembly 1 of the present embodiment is provided with an expansion valve seat 3' (i.e. a second expansion valve seat) of unitary construction on the plate heat exchanger 2. The coil assembly 5' (i.e., the second coil assembly) extends out of the bracket 5'1, and the bracket 5'1 is provided with a mounting hole. The expansion valve seat 3' is provided with a third mounting hole at the end where the valve element assembly 4 is mounted. The fixed connection of the expansion valve seat 3 'and the coil assembly 5' can be realized through the mounting hole of the screw connection bracket 5'1 and the third mounting hole of the expansion valve seat 3'.

While the utility model has been described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the utility model, and that any changes, equivalents, and modifications to the above embodiments in accordance with the technical principles of the utility model fall within the scope of the utility model as defined in the appended claims.

Claims

1. Plate heat exchanger assembly (1), characterized in that it comprises at least: a plate heat exchanger (2) and an expansion valve seat; the expansion valve seat is arranged on the plate heat exchanger (2); wherein,,

the plate heat exchanger (2) comprises a first refrigerant port (21) and a second refrigerant port (22);

the expansion valve seat comprises a first seat channel (31) and a second seat channel (32); a first valve seat port (31 a) of the first valve seat channel (31) is communicated with the first refrigerant port (21), and a third valve seat port (32 a) of the second valve seat channel (32) is communicated with the second refrigerant port (22).

2. A plate heat exchanger assembly (1) according to claim 1, further comprising: a valve core assembly (4) and a coil assembly; wherein, case subassembly (4) inserts and locates expansion valve disk seat.

3. A plate heat exchanger assembly (1) according to claim 2, wherein the expansion valve seat is a first expansion valve seat (3) and the coil assembly is a first coil assembly (5); the first expansion valve seat (3) is provided with at least one mounting arm (33) at the end part for mounting the valve core assembly (4); -said at least one mounting arm (33) is provided with a first mounting hole (34) for fixing said first coil assembly (5); alternatively, the expansion valve seat is a second expansion valve seat (3 '), and the coil assembly is a second coil assembly (5'); the end part of the second expansion valve seat (3 ') where the valve core assembly (4) is arranged is provided with a third mounting hole for fixing a bracket (5'1) of the second coil assembly (5 ').

4. A plate heat exchanger assembly (1) according to claim 3, wherein the expansion valve seat (3) is one-piece.

5. A plate heat exchanger assembly (1) according to claim 3, wherein the expansion valve seat (3) is of a split type; the split expansion valve seat (3) comprises a first valve seat (3 a) and a second valve seat (3 b), the first valve seat channel (31) is arranged on the first valve seat (3 a), and the second valve seat channel (32) is arranged on the second valve seat (3 b).

6. A plate heat exchanger assembly (1) according to claim 5, wherein the valve core assembly (4) is inserted in the first valve seat (3 a); the first valve seat (3 a) is provided with two mounting arms (33) at the end part for mounting the valve core assembly (4); the two mounting arms (33) are respectively arranged at two sides of the end part.

7. A plate heat exchanger assembly (1) according to claim 5, wherein a second mounting hole (35) is provided at the second valve seat port (31 b) adjacent to the first valve seat channel (31) and/or at the fourth valve seat port (32 b) of the second valve seat channel (32) for connecting a counter piece.

8. A plate heat exchanger assembly (1) according to claim 1, wherein at least one first positioning portion (36) is provided on the bottom surface of the expansion valve seat (3); the top plate (23) of the plate heat exchanger (2) is provided with at least one second positioning part (24) on the surface; the at least one first positioning portion (36) is adapted to the at least one second positioning portion (24).

9. A plate heat exchanger assembly (1) according to claim 1, wherein the expansion valve seat (3) is welded to the plate heat exchanger (2).

10. A battery thermal management module, comprising: a plate heat exchanger assembly (1) according to any one of claims 1-9.