CN111674257A - Thermal management module for vehicle and working method thereof - Google Patents

Thermal management module for vehicle and working method thereof Download PDF

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Publication number
CN111674257A
CN111674257A CN201910181018.9A CN201910181018A CN111674257A CN 111674257 A CN111674257 A CN 111674257A CN 201910181018 A CN201910181018 A CN 201910181018A CN 111674257 A CN111674257 A CN 111674257A
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CN
China
Prior art keywords
thermal management
vehicle
module
plunger assembly
management module
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201910181018.9A
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Chinese (zh)
Inventor
汪路
杨炳春
奥拉夫埃克哈德·韦伯
李祎文
吴寒
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Schaeffler Technologies AG and Co KG
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Schaeffler Technologies AG and Co KG
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Publication date
Application filed by Schaeffler Technologies AG and Co KG filed Critical Schaeffler Technologies AG and Co KG
Priority to CN201910181018.9A priority Critical patent/CN111674257A/en
Publication of CN111674257A publication Critical patent/CN111674257A/en
Pending legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K11/00—Arrangement in connection with cooling of propulsion units
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K1/00—Arrangement or mounting of electrical propulsion units
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K11/00—Arrangement in connection with cooling of propulsion units
    • B60K11/02—Arrangement in connection with cooling of propulsion units with liquid cooling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K1/00—Arrangement or mounting of electrical propulsion units
    • B60K2001/003—Arrangement or mounting of electrical propulsion units with means for cooling the electrical propulsion units

Abstract

The invention provides a thermal management module for a vehicle and a working method thereof. The thermal management module for a vehicle implements control of the flow rate of a medium through an outlet duct using a plunger assembly that reciprocates in an inner space of a module body, and the plunger is capable of implementing a static seal with the module body at different locations. In this way, the static seal achieved by the thermal management module for a vehicle is less sensitive to vibration, less demanding on material properties and processing parameters, and less risking leakage than the dynamic seals of prior art rotary valves. In addition, the thermal management module for a vehicle has a relatively simple overall structure compared to the thermal management module for a vehicle of the related art, and thus requires a small space and is low in cost.

Description

Thermal management module for vehicle and working method thereof
Technical Field
The invention relates to the field of vehicles, in particular to a thermal management module for a vehicle and a working method thereof.
Background
In the field of vehicles, thermal management modules are becoming increasingly important both in conventional engine-only drive systems and in electric-only or hybrid drive systems. However, the thermal management module of the existing thermal management system usually adopts a rotary valve or the like to control the flow of the medium, and a rotary sealing manner is adopted between the rotary valve and the outlet pipe in the thermal management module, so that the following disadvantages exist:
1. the device is very sensitive to vibration and is easy to cause failure by vibration;
2. the requirements on the properties and processing parameters of materials such as plastics are high;
3. there is a high risk of leakage in the shaft and interface seals;
4. a relatively larger space is required; and
5. the cost is higher.
Disclosure of Invention
The present invention has been made in view of the above-mentioned disadvantages of the prior art. It is an object of the present invention to provide a thermal management module for a vehicle that overcomes at least one of the above-mentioned disadvantages. Another object of the present invention is to provide a method for operating the thermal management module for a vehicle.
In order to achieve the above object, the present invention adopts the following technical solutions.
The present invention provides a thermal management module for a vehicle, including: a module body formed with an inner space; a plurality of pipes fixed to different portions of the module body to be spaced apart from each other and each communicating with an inner space of the module body; and a plunger assembly integrally extending in an axial direction of the module body and movably disposed in a predetermined range in the axial direction in an inner space of the module body, the plunger assembly being capable of selectively achieving static sealing with a plurality of locations in the axial direction of the module body as the plunger assembly moves, such that at least a portion of the plurality of conduits do not communicate with each other when the plunger assembly is in sealing contact with different locations of the module body and the plurality of conduits communicate with each other when the plunger assembly is not in sealing contact with the module body.
Preferably, the locations of the module body connected to the plurality of pipes and the locations of the module body for achieving static sealing with the plunger assembly are alternately arranged in the axial direction.
More preferably, the plurality of pipes includes a first pipe, a second pipe and a third pipe, the module body is formed with a first sealing portion and a second sealing portion for achieving static sealing with the plunger assembly, and a portion of the module body connected with the first pipe, the first sealing portion, a portion of the module body connected with the second pipe, the second sealing portion and a portion of the module body connected with the third pipe are sequentially arranged from one axial side to the other axial side on the module body.
More preferably, the module body includes a body large diameter portion, a body small diameter portion located at both axial sides of the body large diameter portion, and a shoulder portion for transitionally connecting the body large diameter portion and the body small diameter portion, and the first sealing portion and the second sealing portion are located at the shoulder portion.
More preferably, the plunger assembly comprises: the plug head is positioned inside the large-diameter part of the main body and comprises a small-diameter part of the plug head and large-diameter parts of the plug head positioned on two axial sides of the small-diameter part of the plug head;
the two sealing rings are respectively fixed on the large diameter part of the plug head and used for abutting against the corresponding shoulder part to realize static sealing; and the connecting rod is fixedly connected with the plug head.
Preferably, the thermal management module for a vehicle further includes a solenoid valve assembly and an elastic member, the solenoid valve assembly includes a push rod and a coil located radially outside the push rod, the push rod extends along the axial direction and abuts against the plunger assembly, the push rod can push the plunger assembly to move toward one axial side by energizing the coil, one end of the elastic member is fixed relative to the module body, and the other end of the elastic member abuts against the plunger assembly so that the plunger assembly can move toward the other axial side under the elastic force of the elastic member.
More preferably, the thermal management module for a vehicle further includes a fixing component for fixing the elastic member, the fixing component includes an axial support rod and a plurality of radial support rods, one axial end of the axial support rod is fixedly connected to the radial inner ends of the plurality of radial support rods, the other axial end of the axial support rod extends into the plunger assembly to support the plunger assembly, and the elastic member is sleeved on the axial support rod and the one end of the elastic member abuts against the radial support rod.
More preferably, the module body is formed as a split structure with at least one interface surface located at the body major diameter.
The invention also provides an operating method of the vehicle thermal management module in any one of the above technical solutions, wherein at least one pipeline in the vehicle thermal management module is used as an inlet pipeline and the rest of pipelines are used as outlet pipelines, the operating method comprising the following steps: a low flow phase, wherein the flow of at least one of the outlet conduits is gradually increased to a maximum and the flow of the remaining outlet conduits is zero by controlling the movement of the plunger assembly of the thermal management module for the vehicle and/or the flow within the inlet conduits; and a partial loading phase in which the flow of the at least one outlet conduit is maintained at the maximum value and the flow of the remaining outlet conduits is gradually increased by controlling the movement of the plunger assembly of the thermal management module for a vehicle and/or the flow in the inlet conduit.
Preferably, the working method further comprises: a zero flow phase, wherein flow in all of the outlet conduits is maintained at zero by controlling movement of a plunger assembly of the thermal management module for the vehicle and/or flow in the inlet conduits; and a full load phase, wherein the flow rate of all of the outlet conduits is maintained at a maximum by controlling the movement of the plunger assembly of the thermal management module for a vehicle and/or the flow rate within the inlet conduits.
By adopting the technical scheme, the invention provides a novel thermal management module for a vehicle and a working method thereof. In this way, the static seal achieved by the thermal management module for a vehicle is less sensitive to vibration, less demanding on material properties and processing parameters, and less risking leakage than the dynamic seals of prior art rotary valves. In addition, the thermal management module for a vehicle has a relatively simple overall structure compared to the thermal management module for a vehicle of the related art, and thus requires a small space and is low in cost.
Drawings
Fig. 1 is a sectional view of a thermal management module for a vehicle taken along an axial direction according to an embodiment of the present invention.
Fig. 2 is a graph for explaining the method of operation of the thermal management module for a vehicle in fig. 1, in which the flow rate of the medium via the two outlet ducts is plotted against time.
Fig. 3 and 4 are graphs for explaining results of tests performed by the thermal management module for a vehicle in fig. 1.
Description of the reference numerals
1 module body 1a first body part 1b second body part 11 body large diameter portion 12 first body small diameter portion 13 second body small diameter portion 14 first shoulder 15 second shoulder 2a first pipe 2b second pipe 2c third pipe 3 plunger assembly 31 plug 311 plug small diameter portion 312 plug large diameter portion 3121 first convex portion 3122 concave portion 3123 second convex portion 313 blind hole 32 rod 33 seal ring 4 fixing assembly 41 axial support rod 42 radial support rod 43 retainer ring 5 spring 6 support ring 7 solenoid assembly 71 push rod 72 coil
S interior space P1 first axial portion P2 second axial portion P3 third axial portion P4 fourth axial portion P5 fifth axial portion
The A axis is R radial.
Detailed Description
Exemplary embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood that the detailed description is intended only to teach one skilled in the art how to practice the invention, and is not intended to be exhaustive or to limit the scope of the invention.
First, in the following embodiments, the module body 1 of the thermal management module for a vehicle has a substantially cylindrical shape, and unless otherwise specified, "axial direction", "radial direction", and "circumferential direction" refer to the axial direction, the radial direction, and the circumferential direction of the module body 1, respectively, and "one axial side" refers to the left side in fig. 1, and "the other axial side" refers to the right side in fig. 1.
The following description will explain a specific structure of a thermal management module for a vehicle according to an embodiment of the present invention with reference to the accompanying drawings.
(concrete Structure of thermal management Module for vehicle)
As shown in fig. 1, the thermal management module for a vehicle according to the embodiment of the present invention includes a module body 1, three tubes (a first tube 2a, a second tube 2b, and a third tube 2c), a plunger assembly 3, a fixing assembly 4, an elastic member 5, a support ring 6, and a solenoid valve assembly 7 assembled together.
Specifically, in the present embodiment, the module main body 1 has a cylindrical shape as a whole, and the module main body 1 is formed in a hollow structure and is formed with an internal space S for mounting the plunger assembly 3 and the like.
Further, the module main body 1 includes a main body large diameter portion 11, and a first main body small diameter portion 12 located on one axial side of the main body large diameter portion 11 and a second main body small diameter portion 13 located on the other axial side of the main body large diameter portion 11, the outer diameter of the main body large diameter portion 11 is larger than the outer diameter of the first main body small diameter portion 12 and the outer diameter of the second main body small diameter portion 13, and the inner diameter of the main body large diameter portion 11 is larger than the inner diameter of the first main body small diameter portion 12 and the inner diameter of the second main body small diameter portion 13. The module body 1 further includes a first shoulder 14 between the body large diameter portion 11 and the first body small diameter portion 12 and a second shoulder 15 between the body large diameter portion 11 and the second body small diameter portion 13. The first shoulder 14 is used for the transitional connection between the body large diameter portion 11 and the first body small diameter portion 12 and both the outer diameter and the inner diameter of the first shoulder 14 are gradually reduced from the body large diameter portion 11 toward the first body small diameter portion 12, the second shoulder 15 is used for the transitional connection between the body large diameter portion 11 and the second body small diameter portion 13 and both the outer diameter and the inner diameter of the second shoulder 15 are gradually reduced from the body large diameter portion 11 toward the second body small diameter portion 13.
In addition, in order to facilitate the installation of the plunger assembly 3 and the like in the internal space S of the module main body 1, in the present embodiment, the module main body 1 is also formed in a split structure such that the module main body 1 is assembled from the first main body part 1a and the second main body part 1 b. The first body part 1a comprises a major part of the body major diameter 11, a first body minor diameter 12 and a first shoulder 14, and the second body part 1b comprises a minor part of the body major diameter 11, a second shoulder 15 and a second body minor diameter 13, such that the interface between the first body part 1a and the second body part 1b is located at a portion of the body major diameter 11 adjacent the second shoulder 15.
In the present embodiment, the three ducts (the first duct 2a, the second duct 2b, and the third duct 2c) are preferably each formed of a hollow pipe having a circular cross section and are preferably formed integrally with the module main body 1.
These three ducts are fixed to the module body 1 at different points (first axial point P1, third axial point P3 and fifth axial point P5) spaced apart from each other and all communicating with the internal space S of the module body 1. Specifically, the first duct 2a extends in the axial direction a and the first duct 2a is fixedly connected to an axial one-side end of the first body small diameter portion 12 with its central axis coinciding with the central axis of the module body 1, the second duct 2b extends in the radial direction R and the second duct 2b is fixedly connected to the body large diameter portion 11, and the third duct 2c extends in the radial direction R and the third duct 2c is fixedly connected to the second body small diameter portion 13.
In the present embodiment, the central axis of the plunger assembly 3 as a whole coincides with the central axis of the module body 1, and the plunger assembly 3 includes a plug 31, a connecting rod 32, and two seal rings 33, wherein the plug 31 and the connecting rod 32 are preferably formed integrally.
Specifically, the plug 31 is made of, for example, plastic and is located inside the main body large diameter portion 11. The plug 31 is allowed to perform a predetermined range of reciprocating motion inside the main body large diameter portion 11 as the plunger assembly 3 moves in the axial direction a. The plug 31 includes a plug small-diameter portion 311 and plug large-diameter portions 312 located on both sides of the plug small-diameter portion 311 in the axial direction. The plug small-diameter portion 311 has an outer diameter smaller than that of the plug large-diameter portion 312, and the plug small-diameter portion 311 and the plug large-diameter portion 312 form a stepped structure. The two plug large diameter portions 312 are mirror images with respect to the center line in the axial direction a of the plug 31. Each plug head large diameter portion 312 includes a first convex portion 3121 and a second convex portion 3123 disposed opposite to each other in the axial direction a, and a concave portion 3122 located between the first convex portion 3121 and the second convex portion 3123, and the radial dimension of the first convex portion 3121 is larger than the radial dimension of the second convex portion 3123. In addition, the plug head 31 is also formed with a blind hole 313 that is open toward one axial side and has a central axis that coincides with the central axis of the plug head 31, the blind hole 313 being used for insertion of the axial support rod 41 of the fixing assembly 4 and for installation of the retainer ring 43.
The link 32 is fixedly connected to the plug large-diameter portion 312 of the plug 31 on the other axial side and abuts against the push rod 71 of the solenoid valve assembly 7, and the central axis of the link 32 coincides with the central axis of the plug 31.
Two sealing rings 33 are fixed to the recess 3122 of the plug head large diameter portion 312 and are used to abut against the second axial point P2 and the fourth axial point P4 of the corresponding shoulders 14, 15 to achieve a static seal between the plunger assembly 3 and the module body 1.
In the present embodiment, the fixing member 4 is used for mounting the elastic member 5 and for supporting the plunger assembly 3. Specifically, the fixing assembly 4 includes one axial support bar 41, a plurality of radial support bars 42, and a retainer ring 43, wherein the axial support bar 41 and the radial support bars 42 are preferably formed as one body.
The axial support bar 41 extends in the axial direction and the central axis of the axial support bar 41 coincides with the central axis of the module body 1. One axial end of the axial support rod 41 is fixedly connected to the radial inner ends of all the radial support rods 42, and the other axial end of the axial support rod 41 extends into the blind hole 313 of the plug 31.
A plurality of radial support rods 42 (only one radial support rod 42 is shown in the drawings) extend from the inner peripheral wall of the first body small diameter portion 12 toward the radially inner side. The axial support bar 41 is fixed relative to the module body 1 by a plurality of radial support bars 42. Preferably, a plurality of radial support bars 42 are evenly distributed in the circumferential direction of the module body 1.
The retainer ring 43 is sleeved on the axial support rod 41 and is located in the blind hole 313 of the plug head 31, so that the axial support rod 41 can support the plunger assembly 3 through the retainer ring 43. One axial end of the retainer ring 43 abuts against the elastic member 5 and the other axial end abuts against a stepped surface formed in the blind hole 313, and the retainer ring 43 is movable relative to the axial support rod 41 in the axial direction.
In the present embodiment, the elastic member 5 is a helical cylindrical spring fitted around the axial support rod 41, and one axial end of the helical cylindrical spring abuts against the radial support rod 42, while the other axial end abuts against the retaining ring 43. Thus, when the plunger assembly 3 moves toward one axial side under the action of the solenoid valve assembly 7, the retainer ring 43 can compress the elastic member 5 as the plunger assembly 3 moves toward one axial side; when the plunger assembly 3 loses the action of the solenoid valve assembly 7, the retainer ring 43 can push the plunger assembly 3 to move towards the other axial side under the action of the elastic member 5.
In the present embodiment, the support ring 6 is fixed to the module body 1 at the other axial side than the third pipe 2c, and the link 32 of the plunger assembly 3 penetrates the support ring 6. The support ring 6 serves, on the one hand, to prevent the medium flowing in the interior S of the module body 1 from continuing to flow toward the other axial side and, on the other hand, to support the plunger assembly 3. The axial support rod 41 and the support ring 6 can effectively ensure that the central axis of the plunger assembly 3 as a whole is consistent with the central axis of the module body 1.
In the present embodiment, the solenoid valve assembly 7 includes a push rod 71 and a coil 72 located radially outside the push rod 71, the push rod 71 extends in the axial direction a and abuts against the link 32 of the plunger assembly 3 from the other axial side, and the push rod 71 can push the plunger assembly 3 in the axial direction a to move toward the one axial side by energizing the coil 72. Since the solenoid valve assembly 7 may employ a prior art solenoid valve assembly, its detailed configuration will not be described herein.
In this way, by employing the thermal management module for a vehicle having the above-described structure, it is possible to realize the static seal in which the plunger assembly 3 can selectively come into contact with two points (the second axial point P2 and the fourth axial point P4) in the axial direction of the module main body 1 in accordance with the movement of the plunger assembly 3, so that the three tubes 2a, 2b, 2c realize different communication patterns when the plunger assembly 3 comes into static seal with the two points of the module main body 1.
Further, in order to achieve a plurality of different communication modes of the three pipes 2a, 2b, 2c, the locations where the three pipes 2a, 2b, 2c are connected to the module body 1 and the locations where the plunger assembly 3 achieves static sealing with the module body 1 are arranged alternately in the axial direction a. Specifically, as shown in fig. 1, the portion of the module body 1 connected to the first pipe 2a is a first axial portion P1, the first sealing portion of the module body 1 for statically sealing with the plunger assembly 3 is a second axial portion P2, the portion of the module body 1 connected to the second pipe 2b is a third axial portion P3, the second sealing portion of the module body 1 for statically sealing with the plunger assembly 3 is a fourth axial portion P4, the portion of the module body 1 connected to the third pipe 2c is a fifth axial portion P5, and the first axial portion P1, the second axial portion P2, the third axial portion P3, the fourth axial portion P4 and the fifth axial portion P5 are sequentially arranged in the axial direction a.
It should be noted that, since the second pipe 2b and the third pipe 2c have a certain size in the axial direction a, the third axial position P3 and the fifth axial position P5 should be understood as a range corresponding to the above size.
The specific structure of the thermal management module for a vehicle according to the present invention has been described above in detail, and the operation method of the thermal management module for a vehicle will be described below.
(working method of thermal management Module for vehicle)
When the thermal management module for a vehicle is used in, for example, a cooling system of an engine, as shown in fig. 2, the operating method of the thermal management module for a vehicle mainly includes four stages, i.e., a zero flow stage, a small flow stage, a partial load stage, and a full load stage.
In the zero-flow phase, the flow in all the pipes 2a, 2b, 2c is kept at zero by controlling the movement of the plunger assembly 3 and/or the flow in the inlet pipe of the thermal management module for a vehicle, and the engine can be rapidly warmed up in a cold start state.
In the low flow phase, one of the three conduits 2a, 2b, 2c is selected as the inlet conduit and the other two conduits are selected as the outlet conduits, such that the flow of the first of the outlet conduits is gradually increased to a maximum value and the flow of the second outlet conduit is kept at zero by controlling the movement of the plunger assembly 3 of the thermal management module for a vehicle and/or the flow within the inlet conduits.
In the partial loading phase, the engine needs to enter a temperature control mode after the temperature of the engine rises, in which case the engine needs a higher constant temperature, by controlling the movement of the plunger assembly 3 and/or the flow in the inlet duct of the thermal management module for a vehicle, so that the flow in the first outlet duct described above remains at a maximum and the flow in the second outlet duct increases gradually.
During the full load phase, the engine needs to transition from a higher constant temperature to a lower constant temperature as quickly as possible, by controlling the movement of the plunger assembly 3 of the thermal management module for a vehicle and/or the flow in the inlet duct so that the flow in all outlet ducts is kept at a maximum.
Although the specific embodiments of the present application are described in detail in the above, it should be noted that:
I. although it has been described in the above embodiment that the respective ducts 2a, 2b, 2c are formed integrally with the module main body 1, the present invention is not limited thereto. The pipes 2a, 2b, 2c may be fixed to the module body 1 by, for example, welding.
Although it is described in the above specific embodiment that the number of the tubes of the thermal management module for a vehicle according to the embodiment of the present invention is three, the present invention is not limited thereto, and more than three tubes may be provided as needed. Furthermore, in the present application, a plurality of outlet conduits share a plunger assembly, which is simpler in structure than the case where one plunger assembly is used for each outlet conduit.
In the small flow phase of the operating method of the thermal management module for a vehicle according to the present invention, after the engine is started via cold, the medium flowing out via the outlet duct may be flowed into the vehicle cabin to supply heat to the vehicle cabin or may also preheat gasoline in winter season where the outside ambient temperature is low.
Compared to the prior art thermal management module using a rotary valve, the thermal management module according to the present invention achieves a static seal with the plunger assembly 3 and the module body 1, which has lower requirements on material performance and wear resistance, and which is insensitive to vibration, thus avoiding leakage problems due to vibration, and omitting the prior art shaft seal of the thermal management module for a vehicle. Specifically, a good static seal can be achieved by a strong electromagnetic force at the first seal portion (second axial portion P2), and a good static seal can be achieved by a fluid pressure at the second seal portion (fourth axial portion P4).
In addition, the thermal management module according to the invention is simple in construction, low in cost and saves space compared to prior art thermal management modules.
In addition, the solenoid valve assembly 7 may employ a prior art solenoid valve assembly, such as a solenoid valve assembly for a centralized timing system, which saves development costs.
V. through computational fluid dynamics analysis, the flow change process of the outlet pipeline of the thermal management module can realize various changes under different pressure drops, so that a good thermal management effect can be ensured.
For example, fig. 3 and 4 respectively show the results of experiments performed on the thermal management module for a vehicle according to the embodiment of the present invention. As shown in FIG. 3, the flow rate of the first outlet conduit (e.g., the second conduit 2b) at an absolute pressure of 1ba reached a maximum of 38L/min at a pump speed of 4000rpm, while the static seal of the second outlet conduit (e.g., the third conduit 2c) was very good. Fig. 4 shows the variation of current versus flow rate, which is distributed approximately proportionally between the first outlet conduit (e.g., the second conduit 2b) and the second outlet conduit (e.g., the third conduit 2c) as the current applied to the solenoid valve assembly 7 increases.

Claims (10)

1. A thermal management module for a vehicle, comprising:
a module body formed with an inner space;
a plurality of pipes fixed to different portions of the module body to be spaced apart from each other and each communicating with an inner space of the module body; and
a plunger assembly extending generally along an axial direction of the module body and movably disposed within a predetermined range along the axial direction within an interior space of the module body, the plunger assembly being selectively capable of achieving static sealing with a plurality of locations in the axial direction of the module body as the plunger assembly moves such that at least a portion of the plurality of conduits do not communicate with each other when the plunger assembly is in sealing contact with different locations of the module body and the plurality of conduits communicate with each other when the plunger assembly is not in sealing contact with the module body.
2. The thermal management module for a vehicle of claim 1, wherein a site of the module body connected to the plurality of tubes and a site of the module body for achieving a static seal with the plunger assembly are alternately arranged in the axial direction.
3. The thermal management module for a vehicle of claim 2, wherein the plurality of conduits includes a first conduit, a second conduit, and a third conduit,
the module body is formed with a first sealing site and a second sealing site for static sealing with the plunger assembly, and
the portion of the module main body connected to the first pipe, the first seal portion, the portion of the module main body connected to the second pipe, the second seal portion, and the portion of the module main body connected to the third pipe are sequentially arranged from one axial side to the other axial side.
4. The thermal management module for a vehicle of claim 3, wherein the module body includes a body large diameter portion, a body small diameter portion located on both axial sides of the body large diameter portion, and a shoulder portion for transitionally connecting the body large diameter portion and the body small diameter portion, the first sealing portion and the second sealing portion being located on the shoulder portion.
5. The thermal management module for a vehicle of claim 4, wherein the plunger assembly comprises:
the plug head is positioned inside the large-diameter part of the main body and comprises a small-diameter part of the plug head and large-diameter parts of the plug head positioned on two axial sides of the small-diameter part of the plug head;
the two sealing rings are respectively fixed on the large diameter part of the plug head and used for abutting against the corresponding shoulder part to realize static sealing; and
and the connecting rod is fixedly connected with the plug head.
6. The thermal management module for a vehicle of any of claims 1-5, further comprising a solenoid valve assembly and an elastomeric member,
the electromagnetic valve assembly comprises a push rod and a coil located on the radial outer side of the push rod, the push rod extends along the axial direction and abuts against the plunger assembly, the coil is electrified to enable the push rod to push the plunger assembly to move towards one axial side, and
one end of the elastic piece is fixed relative to the module main body, and the other end of the elastic piece abuts against the plunger assembly, so that the plunger assembly can move towards the other axial side under the action of the elastic force of the elastic piece.
7. The thermal management module for a vehicle of claim 6, further comprising a fixing member for fixing the elastic member, wherein the fixing member comprises an axial support bar and a plurality of radial support bars, one axial side end of the axial support bar is fixedly connected to a radial inner side end of the plurality of radial support bars, the other axial side end of the axial support bar extends into the plunger assembly to support the plunger assembly, and
the elastic piece is sleeved outside the axial supporting rod, and one end of the elastic piece abuts against the radial supporting rod.
8. The thermal management module for a vehicle of claim 4 or 5, wherein the module body is formed as a split structure with at least one interface surface located at the body major diameter.
9. A method of operating a thermal management module for a vehicle according to any one of claims 1 to 8, wherein at least one of the tubes in the thermal management module for a vehicle is an inlet tube and the remaining tubes are outlet tubes, the method comprising:
a low flow phase, wherein the flow of at least one of the outlet conduits is gradually increased to a maximum and the flow of the remaining outlet conduits is zero by controlling the movement of the plunger assembly of the thermal management module for the vehicle and/or the flow within the inlet conduits; and
a partial loading phase in which the flow of the at least one outlet conduit is maintained at the maximum value and the flow of the remaining outlet conduits is gradually increased by controlling the movement of the plunger assembly of the thermal management module for a vehicle and/or the flow in the inlet conduit.
10. The method of operation of claim 9, further comprising:
a zero flow phase, wherein flow in all of the outlet conduits is maintained at zero by controlling movement of a plunger assembly of the thermal management module for the vehicle and/or flow in the inlet conduits; and
a full load phase in which the flow rate in all of the outlet conduits is maintained at a maximum by controlling the movement of the plunger assembly of the thermal management module for a vehicle and/or the flow rate in the inlet conduits.
CN201910181018.9A 2019-03-11 2019-03-11 Thermal management module for vehicle and working method thereof Pending CN111674257A (en)

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