Multi-loop heat management device of electric automobile

Abstract

The utility model provides a multi-loop heat management device of an electric automobile, belongs to the technical field of heat management of electric automobiles, and aims to solve the problem that the maintenance efficiency of a plate heat exchanger is affected due to the fact that a relatively long time is consumed when a staggered plate sheet is replaced. Comprising a plate heat exchanger body, a positioning mounting plate, a limiting mounting plate, a pressed sliding block, an audible and visual alarm and a circuit communication block. The positioning mounting plate is in bolted connection with the outer side of the plate heat exchanger main body; the limiting mounting plate is in bolted connection with the outer side of the positioning mounting plate; the pressed sliding block is connected to the inner side of the positioning mounting plate in a sliding manner; the audible and visual alarm is connected to the outer side of the limiting mounting plate through a bolt; the circuit communication block is fixedly connected to the inner side of the limiting mounting plate; according to the plate heat exchanger, maintenance personnel can be reminded of the positions of the staggered plates, inconvenience caused by checking the plates one by one is avoided, a large amount of time is saved, and the maintenance efficiency of the plate heat exchanger is effectively improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to electric automobile heat management technical field, more specifically, it is especially related to a kind of electric automobile multi-loop heat management device. BACKGROUND

[0002] Multi-loop heat management system can ensure that each key component of electric automobile such as battery pack, motor and electric control system can run in the optimum temperature range, to ensure the safety of electric automobile, multi-loop heat management system is usually composed of plate heat exchanger, compressor, evaporator, cooling liquid pump and other devices, in heat management process, R290 refrigerant is handled through each component, and then it passes through vehicle cabin air conditioner evaporator or cold plate in battery pack, R290 refrigerant absorbs heat and then evaporates continuously and returns to compressor through expansion valve to complete the whole cycle, wherein plate heat exchanger is used to transfer heat between different loops, to ensure the heat exchange effect.

[0003] For example, CN207045140U discloses a kind of intelligent multi-loop electric automobile heat management system, including power battery pack, drive motor, motor controller, vehicle-mounted charger, DC / DC converter, battery radiator, battery refrigerator, motor radiator, electric water pump, electric oil pump, expansion water tank, PTC heater, heat exchanger, electric compressor, condenser, liquid storage drying pot, evaporator, electronic expansion valve, warm air core, connected by pipeline and straight-through valve, three-way valve and four-way valve arranged in pipeline, form multiple heat management control loops;Compared with prior art, the utility model forms multiple loops to meet different cooling or heating needs, these loops are selectively opened and closed according to the characteristics and working state of power battery pack, electric drive module and passenger cabin air conditioner of electric automobile, to ensure temperature balance of electric automobile, ensure efficient operation of electric automobile, system energy saving is remarkable, vehicle range is longer, and vehicle economy is better.

[0004] Based on the above, plate heat exchanger is prone to misalignment due to large changes in medium flow and pressure after long-term use, and leakage of plate heat exchanger is prone to occur when heat exchanger plate is offset, plate needs to be adjusted or replaced in time, but when replacing misaligned plate, multiple plates need to be checked one by one to determine the position of misaligned plate, which takes a long time and affects the maintenance efficiency of plate heat exchanger. UTILITY MODEL CONTENTS

[0005] In order to solve the above technical problems, the utility model provides a kind of electric vehicle multi-loop heat management device, to solve the problem that plate heat exchanger is prone to misplacement due to medium flow and pressure change is larger after long-term use, it is prone to cause plate heat exchanger to leak when heat exchanger plate piece appears deviation, plate piece needs to be adjusted or replaced in time, but when replacing misplacement plate piece, it also needs to check one by one to determine the position of misplacement plate piece, it needs to spend long time, the maintenance efficiency of plate heat exchanger is affected.

[0006] The purpose and function of the electric vehicle multi-loop heat management device are achieved by the following specific technical means.

[0007] A kind of electric vehicle multi-loop heat management device, including plate heat exchanger main body, positioning mounting plate, limiting mounting plate, pressure receiving sliding block, anti-loose structure, connecting structure, sound-light alarm and circuit communication block;The positioning mounting plate is provided with multiple, multiple positioning mounting plates are evenly distributed bolt connection on the outside of plate heat exchanger main body;The limiting mounting plate is provided with multiple, multiple limiting mounting plates are bolted to the outside of multiple positioning mounting plates respectively;The pressure receiving sliding block is provided with multiple, multiple pressure receiving sliding blocks are evenly distributed and slidably connected to the inside of multiple positioning mounting plates;The anti-loose structure is provided with multiple, multiple anti-loose structures are all arranged in the lower part of plate heat exchanger main body;The sound-light alarm is provided with multiple, multiple sound-light alarms are evenly distributed and bolted to the outside of multiple limiting mounting plates;The circuit communication block is provided with multiple groups, multiple groups of circuit communication blocks are evenly distributed and fixedly connected to the inside of multiple limiting mounting plates;The connecting structure is provided with multiple, multiple connecting structures are respectively arranged in the inside of multiple limiting mounting plates.

[0008] Further, the anti-loose structure includes positioning connecting lug and position limiting sleeve;The position limiting sleeve is provided with multiple, multiple position limiting sleeves are all arranged in the lower part of plate heat exchanger main body;The positioning connecting lug is provided with multiple, multiple positioning connecting lugs are respectively fixedly connected to the outside of multiple position limiting sleeves, and multiple positioning connecting lugs are bolted to the lower part of plate heat exchanger main body.

[0009] Further, the anti-loose structure further includes refrigerant flow passage and refrigerant flow passage pipeline;The refrigerant flow passage is provided with multiple, multiple refrigerant flow passages are evenly distributed and opened in the lower part of plate heat exchanger main body;The refrigerant flow passage pipeline is provided with multiple, multiple refrigerant flow passage pipelines are respectively sleeved on the outside of multiple refrigerant flow passages.

[0010] Further, the anti-loosening structure further comprises pipeline connecting screws and pipeline fixing nuts; the pipeline connecting screws are provided in plurality, and the plurality of pipeline connecting screws are uniformly distributed and fixedly connected to the outer sides of the plurality of refrigerant flow-through openings; the pipeline fixing nuts are provided in plurality, and the plurality of pipeline fixing nuts are respectively threadedly connected to the outer sides of the plurality of pipeline connecting screws.

[0011] Further, the anti-loosening structure further comprises first limiting bosses and second limiting bosses; the first limiting bosses are provided in plurality, and the plurality of first limiting bosses are uniformly distributed and fixedly connected to the inner sides of the plurality of position limiting sleeves, and the first limiting bosses are in arc-shaped structures; the second limiting bosses are provided in plurality, and the plurality of second limiting bosses are uniformly distributed and fixedly connected to the outer sides of the plurality of pipeline fixing nuts, and the second limiting bosses are in arc-shaped structures.

[0012] Further, the connecting structure comprises metal guide plates and reset elastic members; the metal guide plates are provided in plurality, and the plurality of metal guide plates are respectively fixedly connected to the outer sides of the plurality of pressure receiving sliding blocks, and the plurality of metal guide plates are respectively slidably connected to the plurality of positioning installation plates; the reset elastic members are provided in plurality, and the plurality of pressure receiving sliding blocks are respectively elastically connected to the plurality of positioning installation plates through the plurality of reset elastic members.

[0013] Compared with the prior art, the anti-loosening structure has the following beneficial effects:

[0014] The first limiting bosses and the second limiting bosses limit the pipeline fixing nuts, avoid loosening of the pipeline fixing nuts during automobile operation, improve the connection stability of the pipeline fixing nuts, ensure the sealing performance of the pipeline interface, effectively avoid refrigerant leakage at the pipeline connection, ensure the thermal management effect, and enable the sound-light alarm to issue an alarm to remind the user to timely perform maintenance when the plate is misaligned, reduce the risk of accidents caused by problems of the electric automobile thermal management system due to untimely discovery, effectively reduce the safety hazards during use of the electric automobile, improve the safety factor of the electric automobile, remind the maintenance personnel of the position of the misaligned plate through the sound-light alarm, avoid the inconvenience of checking each plate one by one, save a large amount of time, and effectively improve the maintenance efficiency of the plate heat exchanger. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a schematic diagram of the overall structure of the utility model.

[0016] Figure 2 is a schematic diagram of the installation position of the position limiting sleeve.

[0017] Figure 3It is the split structure schematic view of position limiting sleeve and plate heat exchanger main body of the utility model.

[0018] Figure 4 It is the position relation schematic view of positioning installation plate, limiting installation plate and pressure receiving sliding block of the utility model.

[0019] Figure 5 It is the split structure schematic view of pressure receiving sliding block and limiting installation plate of the utility model.

[0020] In the drawing, the correspondence of component name and drawing number is as follows:

[0021] 1, plate heat exchanger main body;101, positioning connecting ear plate;102, position limiting sleeve;103, first limiting boss;104, pipeline connecting screw;105, pipeline fixing nut;106, second limiting boss;107, refrigerant flow-through port;108, refrigerant flow-through pipeline;2, positioning installation plate;3, limiting installation plate;4, pressure receiving sliding block;401, metal guide plate;402, reset elastic piece;5, sound and light alarm;6, circuit communication block. Specific implementation

[0022] The implementation of the utility model will be described in further detail below in combination with the drawings and examples.

[0023] Example one:

[0024] As shown in the accompanying Figure 1 to the accompanying Figure 3 As shown:

[0025] The utility model provides a kind of electric vehicle multi-loop heat management device, including plate heat exchanger main body 1, positioning installation plate 2, limiting installation plate 3, pressure receiving sliding block 4, anti-loose structure, sound and light alarm 5 and circuit communication block 6;Positioning installation plate 2 is provided with multiple, multiple positioning installation plate 2 is evenly distributed bolt connection in the outside of plate heat exchanger main body 1;Limiting installation plate 3 is provided with multiple, and multiple limiting installation plate 3 is bolted connection in the outside of multiple positioning installation plate 2 respectively;Pressure receiving sliding block 4 is provided with multiple, and multiple pressure receiving sliding block 4 is evenly distributed sliding connection in the inside of multiple positioning installation plate 2;Anti-loose structure is provided with multiple, and multiple anti-loose structures are all arranged in the lower part of plate heat exchanger main body 1;Sound and light alarm 5 is provided with multiple, and multiple sound and light alarms 5 are evenly distributed bolt connection in the outside of multiple limiting installation plate 3;Circuit communication block 6 is provided with multiple groups, and multiple groups of circuit communication block 6 are evenly distributed fixed connection in the inside of multiple limiting installation plate 3.

[0026] Among them, the anti-loosening structure includes a positioning and connecting ear plate 101 and a position limiting sleeve 102; there are multiple position limiting sleeves 102, and the multiple position limiting sleeves 102 are all arranged at the lower part of the plate heat exchanger body 1; there are multiple positioning and connecting ear plates 101, and the multiple positioning and connecting ear plates 101 are respectively fixedly connected to the outside of the multiple position limiting sleeves 102, and the multiple positioning and connecting ear plates 101 are all bolted to the lower part of the plate heat exchanger body 1.

[0027] Among them, the anti-loosening structure also includes a refrigerant circulation port 107 and a refrigerant circulation pipe 108; there are multiple refrigerant circulation ports 107, and multiple refrigerant circulation ports 107 are evenly distributed and opened in the lower part of the plate heat exchanger body 1; there are multiple refrigerant circulation pipes 108, and multiple refrigerant circulation pipes 108 are respectively arranged on the outside of the multiple refrigerant circulation ports 107.

[0028] Among them, the anti-loosening structure also includes a pipe connecting screw 104 and a pipe fixing nut 105; there are multiple pipe connecting screws 104, and the multiple pipe connecting screws 104 are evenly distributed and fixedly connected to the outside of multiple refrigerant circulation ports 107; there are multiple pipe fixing nuts 105, and the multiple pipe fixing nuts 105 are respectively threadedly connected to the outside of multiple pipe connecting screws 104.

[0029] Among them, the anti-loosening structure also includes a first limiting boss 103 and a second limiting boss 106; there are multiple first limiting bosses 103, and multiple first limiting bosses 103 are evenly distributed and fixedly connected to the inner side surfaces of multiple position limiting sleeves 102, and the first limiting bosses 103 are arc-shaped structures; there are multiple second limiting bosses 106, and multiple second limiting bosses 106 are evenly distributed and fixedly connected to the outer side surfaces of multiple pipe fixing nuts 105, and the second limiting bosses 106 are arc-shaped structures.

[0030] The specific usage and function of this embodiment: first align the connecting hole with the pipe connecting screw 104, and then put the refrigerant circulation pipe 108 on the outside of the refrigerant circulation port 107. At this time, screw the pipe fixing nut 105 on the outside of the pipe connecting screw 104 to press the refrigerant circulation pipe 108 to complete the pipe connection. At this time, put the position limiting sleeve 102 on the outside of the pipe fixing nut 105, so that the first limiting boss 103 and the second limiting boss 106 are stuck to each other, and use bolts to fix the positioning connection ear plate 101 on the plate heat exchanger body 1 to complete the positioning of the position limiting sleeve 102. At this time, the first limiting boss 103 and the second limiting boss 106 will limit the pipe fixing nut 105 so that the pipe fixing nut 105 cannot be loosened.

[0031] Example 2:

[0032] As attached Figure 3 To the attached Figure 5 As shown:

[0033] On the basis of the first embodiment, further comprising a connecting structure; the connecting structure is provided with a plurality of, a plurality of connecting structures are respectively arranged on the inner side of a plurality of limiting installation plates 3.

[0034] Among them, the connecting structure includes a metal guide plate 401 and a reset elastic element 402; the metal guide plate 401 is provided with a plurality of, a plurality of metal guide plates 401 are respectively fixedly connected on the outer side of a plurality of pressure sliding blocks 4, and a plurality of metal guide plates 401 are respectively connected with a plurality of positioning installation plates 2; the reset elastic element 402 is provided with a plurality of, a plurality of pressure sliding blocks 4 are respectively connected with a plurality of positioning installation plates 2 through a plurality of reset elastic elements 402.

[0035] The specific use and effect of the embodiment: when the plate is misaligned, the misaligned plate will extrude the corresponding pressure sliding block 4, so that the pressure sliding block 4 slides along the positioning installation plate 2 to compress the reset elastic element 402, at this time the metal guide plate 401 will contact with the circuit communication block 6, so that the control circuit of the sound and light alarm 5 on the outer side of the limiting installation plate 3 is connected to send alarm to remind the user that the electric vehicle thermal management device is malfunctioning.

[0036] In this paper, the following points need attention:

[0037] 1. The drawings of the embodiments of the present disclosure only involve the structures involved in the embodiments of the present disclosure, and other structures can refer to the usual design.

[0038] 2. In the case of no conflict, the embodiments of the present disclosure and the features in the embodiments can be combined to obtain new embodiments.

[0039] The above is only a specific embodiment of the present disclosure, but the protection scope of the present disclosure is not limited to this, any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present disclosure, which should be covered in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be subject to the protection scope of the claims.

Claims

1. An electric vehicle multi-loop thermal management device, characterized by: The plate heat exchanger includes a plate heat exchanger body (1), a positioning mounting plate (2), a limiting mounting plate (3), a pressure receiving sliding block (4), an anti-loosening structure, a connecting structure, an audible and visual alarm (5) and a circuit communication block (6). The positioning mounting plate (2) is provided with a plurality of positioning mounting plates (2) which are uniformly distributed and bolted on the outside of the plate heat exchanger body (1). The limiting mounting plate (3) is provided with a plurality of limiting mounting plates (3) which are respectively bolted on the outside of the positioning mounting plate (2). The pressure receiving sliding block (4) is provided with a plurality of pressure receiving sliding blocks (4) which are uniformly distributed and slidingly connected on the inside of the positioning mounting plate (2). The anti-loosening structure is provided with a plurality of anti-loosening structures which are arranged on the lower part of the plate heat exchanger body (1). The audible and visual alarm (5) is provided with a plurality of audible and visual alarms (5) which are uniformly distributed and bolted on the outside of the limiting mounting plate (3). The circuit communication block (6) is provided with a plurality of circuit communication blocks (6) which are uniformly distributed and fixedly connected on the inside of the limiting mounting plate (3). The connecting structure is provided with a plurality of connecting structures which are respectively arranged on the inside of the limiting mounting plate (3).

2. The multi-loop thermal management device for electric vehicles of claim 1, wherein: The anti-loosening structure includes a positioning connecting ear plate (101) and a position limiting sleeve (102). The position limiting sleeve (102) is provided with a plurality of position limiting sleeves (102) which are arranged on the lower part of the plate heat exchanger body (1). The positioning connecting ear plate (101) is provided with a plurality of positioning connecting ear plates (101) which are respectively fixedly connected on the outside of the position limiting sleeve (102), and the positioning connecting ear plate (101) is bolted on the lower part of the plate heat exchanger body (1).

3. The multi-loop thermal management device for electric vehicles of claim 2, wherein: The anti-loosening structure further includes a refrigerant flow passage (107) and a refrigerant flow passage (108). The refrigerant flow passage (107) is provided with a plurality of refrigerant flow passages (107) which are uniformly distributed and arranged on the lower part of the plate heat exchanger body (1). The refrigerant flow passage (108) is provided with a plurality of refrigerant flow passages (108) which are respectively sleeved on the outside of the refrigerant flow passage (107).

4. The multi-loop thermal management device for electric vehicles of claim 3, wherein: The anti-loosening structure further includes a pipeline connecting screw (104) and a pipeline fixing nut (105). The pipeline connecting screw (104) is provided with a plurality of pipeline connecting screws (104) which are uniformly distributed and fixedly connected on the outside of the refrigerant flow passage (107). The pipeline fixing nut (105) is provided with a plurality of pipeline fixing nuts (105) which are respectively threadedly connected on the outside of the pipeline connecting screw (104).

5. The electric vehicle multi-loop thermal management device of claim 4, wherein: The anti-loosening structure further comprises a first limiting boss (103) and a second limiting boss (106); the first limiting boss (103) is provided with a plurality of first limiting bosses (103) which are uniformly distributed and fixedly connected to the inner side surface of the plurality of position limiting sleeves (102), and the first limiting boss (103) is in a circular arc structure; the second limiting boss (106) is provided with a plurality of second limiting bosses (106) which are uniformly distributed and fixedly connected to the outer side surface of the plurality of pipe fixing nuts (105), and the second limiting boss (106) is in a circular arc structure.

6. The electric vehicle multi-loop thermal management device of claim 1, wherein: The connecting structure comprises a metal guide plate (401) and a reset elastic member (402); the metal guide plate (401) is provided with a plurality of metal guide plates (401) which are respectively fixedly connected to the outer side of the plurality of pressure receiving sliding blocks (4) and are respectively in sliding connection with the plurality of positioning installation plates (2); the reset elastic member (402) is provided with a plurality of reset elastic members (402) which are respectively in elastic connection between the plurality of pressure receiving sliding blocks (4) and the plurality of positioning installation plates (2).

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