Variable flow heat exchanger device for electric vehicles

Abstract

The present invention provides a variable flow heat exchanger device suitable for electric vehicles, comprising: an off-vehicle heat exchanger body 1; the off-vehicle heat exchanger body 1 comprises: a first header 2, an inlet assembly 3, an outlet assembly 4, a second header 9, and a flat tube component 10; the inlet assembly 3 is connected to the first header 2; the outlet assembly 4 is connected to the first header 2; the flat tube component 10 is respectively connected to the first header 2 and the second header 9; the off-vehicle heat exchanger body 1 also comprises: a first bellows regulating valve 5, a second bellows regulating valve 6, a first side plate 7 and a second side plate 8; the first bellows regulating valve 5 can be closed or separated from the second side plate 8; the second bellows regulating valve 6 can be closed or separated from the first side plate 7; the present invention can realize self-adjusting variable flow distribution.

Description

Technical Field

[0001] The present invention relates to the field of thermal management of new energy vehicles, and in particular to a variable flow heat exchanger device suitable for electric vehicles. Background Art

[0002] With the development of automobile technology, electric vehicles have a higher and higher share in vehicles, and electric vehicle heat pump air conditioning technology has been increasingly studied and applied. Many electric vehicles at home and abroad have been equipped with heat pump air conditioning systems. The outdoor heat exchanger is not only used as a condenser but also as an evaporator in the heat pump air conditioning system, and is an important component in the heat pump air conditioning system. At present, most electric vehicle heat pump air conditioning systems use outdoor heat exchangers that have the same flow distribution when used as condensers and evaporators, which greatly attenuates the heat exchange efficiency and makes the heat pump air conditioning system less effective. Therefore, it is necessary to develop an outdoor heat exchanger that can realize variable flow distribution as a condenser and evaporator, which can not only improve the heat exchange efficiency of the outdoor heat exchanger, but also simplify the pipe connection of the heat pump air conditioning system, which not only saves costs, but also improves the heat exchange capacity of the heat pump air conditioning system.

[0003] Patent document CN106705498B discloses a heat exchanger, comprising: a flat tube, which is arranged on a header and communicated with the header; and a fin, which is arranged between adjacent flat tubes. At least one drainage hole extending along the length direction of the flat tube is formed in at least one of the flat tubes; and a water inlet opening communicated with the drainage hole is formed on the wall surface of the drainage hole, so that condensed water on the surface of the heat exchanger can flow into the drainage hole through the water inlet opening and be discharged through the drainage hole. This patent is not well applicable to variable flow heat exchange of electric vehicles. Summary of the invention

[0004] In view of the defects in the prior art, an object of the present invention is to provide a variable flow heat exchanger device suitable for electric vehicles.

[0005] According to the present invention, a variable flow heat exchanger device suitable for electric vehicles includes: an off-vehicle heat exchanger body 1; the off-vehicle heat exchanger body 1 includes: a first header 2, an inlet assembly 3, an outlet assembly 4, a second header 9, and a flat tube component 10; the inlet assembly 3 is connected to the first header 2; the outlet assembly 4 is connected to the first header 2; the flat tube component 10 is respectively connected to the first header 2 and the second header 9; the off-vehicle heat exchanger body 1 also includes: a first bellows regulating valve 5, a second Bellows regulating valve 6, first side plate 7 and second side plate 8; the first bellows regulating valve 5 and the second side plate 8 are arranged at one end of the first collecting pipe 2; the second bellows regulating valve 6 and the first side plate 7 are arranged at the other end of the first collecting pipe 2; the first bellows regulating valve 5 can be closed or separated from the second side plate 8; the second bellows regulating valve 6 can be closed or separated from the first side plate 7; the inlet component is adjacent to the first bellows regulating valve 5; the outlet component is adjacent to the second bellows regulating valve 6.

[0006] Preferably, when the first bellows regulating valve 5 and the second side plate 8 are closed, and the second bellows regulating valve 6 and the first side plate 7 are closed, the first collecting pipe 2 is divided into the following three areas: - the first collecting pipe first area; - the first collecting pipe second area; - the first collecting pipe third area; the first collecting pipe first area, the first collecting pipe second area, and the first collecting pipe third area are respectively connected to the flat tube component 10.

[0007] Preferably, the flat tube component 10 comprises: an upper side plate, a lower side plate, and a flat tube; the upper side plate and the lower side plate are parallel to the flat tube.

[0008] Preferably, one or more fins are provided on the upper plate and the flat tube, and there is a gap between two adjacent fins.

[0009] Preferably, it also includes: a third side plate 12, a first internal interface 13, a liquid storage tube 14 and a second internal interface 15; the third side plate 12 is arranged in the second collecting pipe 9; the first internal interface 13 and the second internal interface 15 are arranged on both sides of the third side plate 12; the liquid storage tube 14 is connected to the first internal interface 13 and the second internal interface 15 respectively.

[0010] Preferably, the first bellows regulating valve 5 and the second bellows regulating valve 6 constitute a bellows regulating valve; the bellows regulating valve comprises: a bellows, a valve stem, and a valve stem sealing ring; the bellows is connected to the valve stem; the valve stem sealing ring is arranged on the top rod of the valve stem.

[0011] Preferably, the exterior heat exchanger body 1 adopts any one of the following states: - condenser state; - evaporator state.

[0012] Preferably, the flat tube component 10 further includes: one or more channels; the channels are arranged along the length direction of the flat tube component 10; and the multiple channels are arranged in parallel.

[0013] According to the present invention, a variable flow heat exchanger device suitable for electric vehicles includes: an off-vehicle heat exchanger body 1; the off-vehicle heat exchanger body 1 includes: a first header 2, an inlet assembly 3, an outlet assembly 4, a second header 9, a flat tube component 10 and a third side plate 12; the inlet assembly 3 is connected to the first header 2; the outlet assembly 4 is connected to the first header 2; the flat tube component 10 is connected to the first header 2 and the second header 9 respectively; the off-vehicle heat exchanger body 1 also includes: a first bellows regulating valve 5 , a second bellows regulating valve 6, a first side plate 7 and a second side plate 8; the first bellows regulating valve 5 and the second side plate 8 are arranged at one end of the second collecting pipe 9; the second bellows regulating valve 6 and the first side plate 7 are arranged at one end of the first collecting pipe 2; the third side plate 12 is arranged at the other end of the first collecting pipe 2; the first bellows regulating valve 5 can be closed or separated from the second side plate 8; the second bellows regulating valve 6 can be closed or separated from the first side plate 7; the outlet assembly 4 is adjacent to the second bellows regulating valve 6.

[0014] Preferably, when the first bellows regulating valve 5 and the second side plate 8 are closed, the second collecting pipe 9 is divided into the following two areas: - the first area of ​​the second collecting pipe; - the second area of ​​the second collecting pipe; the first area of ​​the second collecting pipe and the second area of ​​the second collecting pipe are respectively connected to the flat tube component 10; when the second bellows regulating valve 6 and the first side plate 7 are closed, the first collecting pipe 2 is divided into the following three areas by the second bellows regulating valve 6, the first side plate 7 and the third side plate 12: - the first area of ​​the first collecting pipe; - the second area of ​​the first collecting pipe; - the third area of ​​the first collecting pipe; the first area of ​​the first collecting pipe, the second area of ​​the first collecting pipe and the third area of ​​the first collecting pipe are respectively connected to the flat tube component 10.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The present invention can realize self-adjusting variable process allocation;

[0017] 2. The present invention can simultaneously meet the process allocation requirements of the condenser and the evaporator;

[0018] 3. The present invention can achieve fewer interfaces, one in and one out, and optimize system pipeline connections. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Other features, objects and advantages of the present invention will become more apparent from the detailed description of non-limiting embodiments made with reference to the following drawings:

[0020] Figure 1 A first structural schematic diagram of the present invention.

[0021] Figure 2 Schematic diagram of the first condenser implementation scheme in an embodiment of the present invention.

[0022] Figure 3 Schematic diagram of the first evaporator implementation scheme in an embodiment of the present invention.

[0023] Figure 4 A second structural schematic diagram of the present invention.

[0024] Figure 5 Schematic diagram of the second condenser implementation scheme in an embodiment of the present invention.

[0025] Figure 6 Schematic diagram of a second evaporator implementation scheme in an embodiment of the present invention.

[0026] Figure 7 A third structural schematic diagram of the present invention.

[0027] Figure 8 A schematic diagram of a third condenser implementation scheme in an embodiment of the present invention.

[0028] Fig. 9 Schematic diagram of a third evaporator implementation scheme in an embodiment of the present invention.

[0029] Fig.10 A schematic structural diagram of a fourth embodiment of the present invention.

[0030] Fig.11 Schematic diagram of a fourth condenser implementation scheme in an embodiment of the present invention.

[0031] Fig.12 Schematic diagram of a fourth evaporator implementation scheme in an embodiment of the present invention. DETAILED DESCRIPTION

[0032] The present invention is described in detail below in conjunction with specific embodiments. The following embodiments will help those skilled in the art to further understand the present invention, but are not intended to limit the present invention in any form. It should be noted that, for those of ordinary skill in the art, several changes and improvements can also be made without departing from the concept of the present invention. These all belong to the protection scope of the present invention.

[0033] like Figure 1-12As shown, a variable flow heat exchanger device suitable for electric vehicles according to the present invention comprises: an off-vehicle heat exchanger body 1; the off-vehicle heat exchanger body 1 comprises: a first header 2, an inlet assembly 3, an outlet assembly 4, a second header 9, and a flat tube component 10; the inlet assembly 3 is connected to the first header 2; the outlet assembly 4 is connected to the first header 2; the flat tube component 10 is connected to the first header 2 and the second header 9 respectively; the off-vehicle heat exchanger body 1 also comprises: a first bellows regulating valve 5, a first bellows regulating valve 6, a second bellows regulating valve 7, a second bellows regulating valve 8, a second bellows regulating valve 9, a first bellows regulating valve 9, a first bellows regulating valve 10, a first bellows regulating valve 11, a first bellows regulating valve 12, a first bellows regulating valve 13, a first bellows regulating valve 14, a first bellows regulating valve 15, a first bellows regulating valve 16, a first bellows regulating valve 17, a first bellows regulating valve 18, a first bellows regulating valve 19 ... Two bellows regulating valves 6, a first side plate 7 and a second side plate 8; the first bellows regulating valve 5 and the second side plate 8 are arranged at one end of the first collecting pipe 2; the second bellows regulating valve 6 and the first side plate 7 are arranged at the other end of the first collecting pipe 2; the first bellows regulating valve 5 can be closed or separated from the second side plate 8; the second bellows regulating valve 6 can be closed or separated from the first side plate 7; the inlet component is adjacent to the first bellows regulating valve 5; the outlet component is adjacent to the second bellows regulating valve 6.

[0034] Preferably, when the first bellows regulating valve 5 and the second side plate 8 are closed, and the second bellows regulating valve 6 and the first side plate 7 are closed, the first collecting pipe 2 is divided into the following three areas: - the first collecting pipe first area; - the first collecting pipe second area; - the first collecting pipe third area; the first collecting pipe first area, the first collecting pipe second area, and the first collecting pipe third area are respectively connected to the flat tube component 10.

[0035] Preferably, the flat tube component 10 comprises: an upper side plate, a lower side plate, and a flat tube; the upper side plate and the lower side plate are parallel to the flat tube.

[0036] Preferably, one or more fins are provided on the upper plate and the flat tube, and there is a gap between two adjacent fins.

[0037] Preferably, it also includes: a third side plate 12, a first internal interface 13, a liquid storage tube 14 and a second internal interface 15; the third side plate 12 is arranged in the second collecting pipe 9; the first internal interface 13 and the second internal interface 15 are arranged on both sides of the third side plate 12; the liquid storage tube 14 is connected to the first internal interface 13 and the second internal interface 15 respectively.

[0038] Preferably, the first bellows regulating valve 5 and the second bellows regulating valve 6 constitute a bellows regulating valve; the bellows regulating valve comprises: a bellows, a valve stem, and a valve stem sealing ring; the bellows is connected to the valve stem; the valve stem sealing ring is arranged on the top rod of the valve stem.

[0039] Preferably, the exterior heat exchanger body 1 adopts any one of the following states: - condenser state; - evaporator state.

[0040] Preferably, the flat tube component 10 further includes: one or more channels; the channels are arranged along the length direction of the flat tube 10; and the multiple channels are arranged in parallel.

[0041] Specifically, in one embodiment, Figure 1 The variable flow vehicle off-board heat exchanger assembly of the present invention, Figure 2 This is an implementation scheme of the heat exchanger as a condenser. High-temperature and high-pressure refrigerant gas enters the first manifold from the inlet, and the first manifold includes two bellows regulating valves and two side plates. The high-pressure refrigerant gas pushes open the valve stem of the first bellows regulating valve (the refrigerant pressure is greater than the bellows preload), so that the second side plate channel opens, and the high-pressure refrigerant gas passes through to the first side plate. The high pressure causes the valve stem of the second bellows regulating valve to be tightly closed with the first side plate, so that the first flow path is formed between the first side plate and the inlet, and the refrigerant gas passes through the flat tube to reach the second manifold and then passes through the flat tube to reach the outlet, which is the second flow path. Figure 3 This is an implementation scheme of the heat exchanger as an evaporator. The low-temperature and low-pressure two-phase refrigerant enters the first header from the inlet. At this time, the valve stem of the first bellows regulating valve is tightly closed with the second side plate (the refrigerant pressure is less than the bellows preload), and the refrigerant cannot pass through. The second side plate and the inlet form a first flow process; the refrigerant reaches the second header through the flat tube. At this time, the valve stem of the second bellows regulating valve is separated from the first side plate, the first side plate channel is opened, and the refrigerant reaches the outlet through the remaining flat tubes.

[0042] Those skilled in the art may understand the variable flow heat exchanger device suitable for electric vehicles provided by the present invention as an embodiment of other schemes provided by the present invention (such as a vertical variable flow heat exchanger device and the case where the collecting pipes are respectively arranged on two collecting pipes).

[0043] According to the present invention, a variable flow heat exchanger device suitable for electric vehicles includes: an off-vehicle heat exchanger body 1; the off-vehicle heat exchanger body 1 includes: a first header 2, an inlet assembly 3, an outlet assembly 4, a second header 9, a flat tube component 10 and a third side plate 12; the inlet assembly 3 is connected to the first header 2; the outlet assembly 4 is connected to the first header 2; the flat tube component 10 is connected to the first header 2 and the second header 9 respectively; the off-vehicle heat exchanger body 1 also includes: a first bellows regulating valve 5 , a second bellows regulating valve 6, a first side plate 7 and a second side plate 8; the first bellows regulating valve 5 and the second side plate 8 are arranged at one end of the second collecting pipe 9; the second bellows regulating valve 6 and the first side plate 7 are arranged at one end of the first collecting pipe 2; the third side plate 12 is arranged at the other end of the first collecting pipe 2; the first bellows regulating valve 5 can be closed or separated from the second side plate 8; the second bellows regulating valve 6 can be closed or separated from the first side plate 7; the outlet assembly 4 is adjacent to the second bellows regulating valve 6.

[0044] Preferably, when the first bellows regulating valve 5 and the second side plate 8 are closed, the second collecting pipe 9 is divided into the following two areas: - the first area of ​​the second collecting pipe; - the second area of ​​the second collecting pipe; the first area of ​​the second collecting pipe and the second area of ​​the second collecting pipe are respectively connected to the flat tube component 10; when the second bellows regulating valve 6 and the first side plate 7 are closed, the first collecting pipe 2 is divided into the following three areas by the second bellows regulating valve 6, the first side plate 7 and the third side plate 12: - the first area of ​​the first collecting pipe; - the second area of ​​the first collecting pipe; - the third area of ​​the first collecting pipe; the first area of ​​the first collecting pipe, the second area of ​​the first collecting pipe and the third area of ​​the first collecting pipe are respectively connected to the flat tube component 10.

[0045] The present invention can realize self-adjusting variable process distribution; the present invention can simultaneously meet the process distribution requirements of the condenser and the evaporator; the present invention can realize fewer interfaces, one inlet and one outlet, and optimize the system pipeline connection.

[0046] The present invention uses a bellows regulating valve to achieve flow distribution with more first flows and less second flows when used as a condenser (when used as a condenser, the inlet is gas, requiring more volume; the outlet is liquid, requiring less volume); when used as an evaporator, the flow distribution with less first flows and more second flows (when used as an evaporator, the inlet is mainly liquid, requiring less volume; the outlet is mainly gas, requiring more volume); and at the same time improve the heat exchange effect of the condenser and the evaporator. The present invention uses a heat exchanger with one inlet and one outlet. Whether it is a condenser or an evaporator, the inlet is always the inlet and the outlet is always the outlet, reducing the number of interfaces and simplifying the connection of pipelines.

[0047] Those skilled in the art know that, in addition to realizing the system and its various devices, modules, and units provided by the present invention in a purely computer-readable program code, it is entirely possible to realize the same functions in the form of logic gates, switches, application-specific integrated circuits, programmable logic controllers, and embedded microcontrollers by logically programming the method steps. Therefore, the system and its various devices, modules, and units provided by the present invention can be considered as a hardware component, and the devices, modules, and units included therein for realizing various functions can also be regarded as structures within the hardware component; the devices, modules, and units for realizing various functions can also be regarded as both software modules for realizing the method and structures within the hardware component.

[0048] In the description of the present application, it should be understood that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0049] The above describes the specific embodiments of the present invention. It should be understood that the present invention is not limited to the above specific embodiments, and those skilled in the art can make various changes or modifications within the scope of the claims, which does not affect the essence of the present invention. In the absence of conflict, the embodiments of the present application and the features in the embodiments can be combined with each other arbitrarily.

Claims

1. A variable flow heat exchanger device suitable for electric vehicles, characterized in that: include: An external heat exchanger body (1); The off-vehicle heat exchanger body (1) comprises: a first header (2), an inlet assembly (3), an outlet assembly (4), a second header (9), and a flat tube component (10); The inlet assembly (3) is connected to the first manifold (2); The outlet assembly (4) is connected to the first manifold (2); The flat tube component (10) is connected to the first header (2) and the second header (9) respectively; The off-vehicle heat exchanger body (1) further comprises: a first bellows regulating valve (5), a second bellows regulating valve (6), a first side plate (7) and a second side plate (8); The first bellows regulating valve (5) and the second side plate (8) are arranged at one end of the first manifold (2); The second bellows regulating valve (6) and the first side plate (7) are arranged at the other end of the first manifold (2); The first bellows regulating valve (5) can be closed or separated from the second side plate (8); The second bellows regulating valve (6) can be closed or separated from the first side plate (7); The inlet assembly is adjacent to the first bellows regulating valve (5); The outlet assembly is adjacent to the second bellows regulating valve (6).

2. The variable flow heat exchanger device suitable for electric vehicles according to claim 1, characterized in that: When the first bellows regulating valve (5) and the second side plate (8) are closed, and the second bellows regulating valve (6) and the first side plate (7) are closed, the first manifold (2) is divided into the following three areas: - a first region of a first header; - a second region of the first header; - the third region of the first header; The first region of the first current collecting pipe, the second region of the first current collecting pipe and the third region of the first current collecting pipe are respectively connected to the flat tube component (10).

3. The variable flow heat exchanger device suitable for electric vehicles according to claim 1, characterized in that: The flat tube component (10) comprises: an upper side plate, a lower side plate, and a flat tube; The upper side plate and the lower side plate are both parallel to the flat tube.

4. The variable flow heat exchanger device suitable for electric vehicles according to claim 3, characterized in that: One or more fins are arranged on the upper plate and the flat tube, and there is a gap between two adjacent fins.

5. The variable flow heat exchanger device suitable for electric vehicles according to claim 1, characterized in that: Also includes: A third side plate (12), a first inner interface (13), a liquid storage tube (14) and a second inner interface (15); The third side plate (12) is arranged in the second header (9); The first inner interface (13) and the second inner interface (15) are arranged on two sides of the third side plate (12); The liquid storage tube (14) is connected to the first internal interface (13) and the second internal interface (15) respectively.

6. The variable flow heat exchanger device suitable for electric vehicles according to claim 1, characterized in that: The first bellows regulating valve (5) and the second bellows regulating valve (6) constitute a bellows regulating valve; The bellows regulating valve comprises: a bellows, a valve stem, and a valve stem sealing ring; The bellows is connected to the valve stem; The valve stem sealing ring is arranged on the top rod of the valve stem.

7. The variable flow heat exchanger device suitable for electric vehicles according to claim 1, characterized in that: The external heat exchanger body (1) adopts any of the following states: -Condenser status; - Evaporator status.

8. The variable flow heat exchanger device suitable for electric vehicles according to claim 3, characterized in that: The flat tube component (10) further comprises: one or more holes; The hole is arranged along the length direction of the flat tube component (10); The multiple channels are arranged in parallel.

9. A variable flow heat exchanger device suitable for electric vehicles, characterized in that: include: An external heat exchanger body (1); The off-vehicle heat exchanger body (1) comprises: a first header (2), an inlet assembly (3), an outlet assembly (4), a second header (9), a flat tube component (10) and a third side plate (12); The inlet assembly (3) is connected to the first manifold (2); The outlet assembly (4) is connected to the first manifold (2); The flat tube component (10) is connected to the first header (2) and the second header (9) respectively; The off-vehicle heat exchanger body (1) further comprises: a first bellows regulating valve (5), a second bellows regulating valve (6), a first side plate (7) and a second side plate (8); The first bellows regulating valve (5) and the second side plate (8) are arranged at one end of the second manifold (9); The second bellows regulating valve (6) and the first side plate (7) are arranged at one end of the first manifold (2); The third side plate (12) is arranged at the other end of the first header (2); The first bellows regulating valve (5) can be closed or separated from the second side plate (8); The second bellows regulating valve (6) can be closed or separated from the first side plate (7); The outlet assembly (4) is adjacent to the second bellows regulating valve (6).

10. The variable flow heat exchanger device suitable for electric vehicles according to claim 9, characterized in that: When the first bellows regulating valve (5) and the second side plate (8) are closed, the second manifold (9) is divided into the following two areas: - a first region of a second header; - a second region of a second header; The first region of the second header and the second region of the second header are respectively connected to the flat tube component (10); When the second bellows regulating valve (6) and the first side plate (7) are closed, the first manifold (2) is divided into the following three areas by the second bellows regulating valve (6), the first side plate (7) and the third side plate (12): - a first region of a first header; - a second region of the first header; - the third region of the first header; The first region of the first current collecting pipe, the second region of the first current collecting pipe and the third region of the first current collecting pipe are respectively connected to the flat tube component (10).

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