A series liquid cooling plate with low temperature heating bypass shunt structure

Abstract

The present invention provides a series liquid cooling plate with a low-temperature heating bypass shunt structure, comprising an installation frame 1, a front-end liquid cooling plate is installed inside the installation frame 1, a battery module is installed on the upper surface of the front-end liquid cooling plate, one side of the installation frame 1 is fixedly connected with a series heating tube, the other end surface of the series heating tube is installed with an installation frame 2, a rear-end liquid cooling plate is arranged inside the installation frame 2, and a liquid outlet is fixedly connected to the other side surface of the installation frame 2, so as to solve the problem that the size of the battery module is fixed when installing the battery module in the above-mentioned background technology, and when installing battery modules of different specifications, corresponding embeddable liquid cooling plates are required for installation, and under low temperature conditions, the original cooling liquid temperature inside the liquid cooling plate is low. When the cooling liquid with a higher temperature enters the liquid cooling plate, it is easily neutralized and lowered by the original low-temperature cooling liquid temperature inside the liquid cooling plate, resulting in a slow heating efficiency of the liquid cooling plate.

Description

Technical Field

[0001] The present invention mainly relates to the field of liquid cooling technology, and in particular to a series liquid cooling plate with a low-temperature heating bypass shunt structure. Background Art

[0002] The battery capacity and driving range of electric vehicles will significantly decrease in low-temperature winter conditions. To address the problem of battery performance degradation at low temperatures, the battery system needs to be heated in advance when using electric vehicles in low-temperature environments. Depending on the thermal management of the vehicle and the thermal management of the battery pack, the main battery heating methods include resistance wire heating, PTC heating, heating film heating, hot air heating, and liquid heating.

[0003] In the invention patent application with application number CN201911245192.1, application publication date 2020.02.21, and titled "A series liquid cooling plate based on low-temperature heating bypass shunt structure", it includes two series-connected first liquid cooling plates and second liquid cooling plates, wherein the first liquid cooling plate is provided with a first pipeline for injecting high-temperature coolant, a second pipeline is provided between the first liquid cooling plate and the second liquid cooling plate, and the second liquid cooling plate is provided with a third pipeline for discharging the coolant. The device adopts a bypass shunt method to improve the consistency of the temperature of the front and rear cold plates during the heating process and the cooling process of the series liquid cooling plates.

[0004] During the operation of a specific embodiment, the inventor discovered the following defects: the series liquid cooling plate has a fixed size when installing a battery module. When installing battery modules of different specifications, a corresponding interlocking liquid cooling plate is required for installation. In addition, under low temperature conditions, the original coolant temperature inside the liquid cooling plate is low. When the coolant with a higher temperature enters the liquid cooling plate, it is easily neutralized and lowered by the original low-temperature coolant temperature inside the liquid cooling plate, resulting in a slow heating efficiency of the liquid cooling plate. Summary of the invention

[0005] 1. Technical problems to be solved by the invention:

[0006] The present invention provides a series liquid cooling plate with a low-temperature heating bypass shunt structure, which is used to solve the problem in the above-mentioned background technology that the size of the battery module is fixed when installing. When installing battery modules of different specifications, corresponding interlocking liquid cooling plates are required for installation, and in the low temperature condition, the original coolant temperature inside the liquid cooling plate is low. When the coolant with a higher temperature enters the liquid cooling plate, it is easily neutralized and lowered by the original low-temperature coolant temperature inside the liquid cooling plate, resulting in a slower heating efficiency of the liquid cooling plate.

[0007] 2. Technical solution:

[0008] To achieve the above object, the technical solution provided by the present invention is as follows: comprising a mounting frame 1, a front-end liquid cooling plate is mounted inside the mounting frame 1, a battery module is mounted on the upper surface of the front-end liquid cooling plate, a series heating tube is fixedly connected to one side of the mounting frame 1, a mounting frame 2 is mounted on the other end surface of the series heating tube, a rear-end liquid cooling plate is arranged inside the mounting frame 2, and a liquid outlet is fixedly connected to the other side surface of the mounting frame 2,

[0009] The installation frame 1 includes an outer frame body, an installation plug is arranged on the upper surface of the outer frame body, a movable splint is movably connected to the surface of the installation plug, an installation spring is arranged between the two end surfaces of the movable splint and the installation plug, a protective leather pad is fixedly connected to the inner surface of the movable splint, side liquid cooling grooves are arranged on the two side surfaces of the outer frame body, a liquid cooling end plate is fixedly connected to the surface of the side liquid cooling groove, a plurality of through holes are arranged on the surface of the liquid cooling end plate, a liquid inlet pipe is fixedly connected to the upper end surface of the other side of the outer frame body, and a liquid inlet solenoid valve is arranged on the upper end surface of the liquid inlet pipe,

[0010] The series heating tube includes an upper sealing side plate fixedly connected to the second surface of the installation frame, a sealing joint is fixedly connected to the surface of the upper sealing side plate, a thermal insulation hose is fixedly connected to the lower end of the sealing joint, a three-way joint is fixedly connected to the lower end surface of the thermal insulation hose, a lower sealing joint is arranged on one side of the three-way joint, a lower sealing side plate is fixedly connected to one side of the installation frame, and a hot liquid solenoid valve is arranged on the lower end surface of the three-way joint.

[0011] Furthermore, the installation frame 1 and the installation frame 2 are stacked up and down, and a gap for installing a battery module is provided between them. The installation frame 1 and the installation frame 2 are connected to each other through a series heating tube, and a water pump is provided on the surface of the liquid outlet. The front liquid cooling plate and the rear liquid cooling plate are both composed of a plurality of temperature-controlled liquid cooling plates, and through-hole plugs are provided on the surfaces of both ends of the temperature-controlled liquid cooling plates.

[0012] Furthermore, four mounting blocks are provided and two movable splints are provided, the movable splint forms an elastic structure between the two mounting blocks by installing a spring, and the two movable splints and the protective leather pads form an elastic structure on both sides of the outer frame, and the battery module forms a supporting structure between the two movable splints.

[0013] Furthermore, there are two liquid-cooled end plates and side liquid-cooling grooves, and the inner surfaces of the two liquid-cooled end plates are fixedly connected to the front liquid-cooling plate. The front liquid-cooling plate is interconnected with the side liquid-cooling grooves through the through holes on the surface of the front liquid-cooling plate, and the side liquid-cooling grooves are interconnected with the liquid inlet pipe.

[0014] Furthermore, one side of the side liquid cooling tank is interconnected with the series heating tube, and the structures of the mounting frame 1 and the mounting frame 2 are consistent, with the difference that one side of the mounting frame 1 is fixedly connected to the liquid inlet pipe, and the upper end of the mounting frame 2 is fixedly connected to the liquid outlet.

[0015] Furthermore, the lower sealing side plate and the upper sealing side plate are respectively fixedly connected to one side of the mounting frame 1 and the mounting frame 2, and the upper end surface of the three-way joint is connected to the thermal insulation hose.

[0016] 3. Beneficial effects:

[0017] Compared with the prior art, the technical solution provided by the present invention has the following beneficial effects:

[0018] The present invention has a reasonable design. When installing the battery module, the battery module is inserted into the gap between the first installation frame and the second installation frame, so that the second installation frame contacts the protective leather pad on the inner side of the movable clamping plate, thereby avoiding direct contact between the battery module and the movable clamping plate to cause damage to the shell. At the same time, the battery module pushes the movable clamping plate and the protective leather pad to move on the surface of the installation plug block, so that the movable clamping plate and the protective leather pad clamp the battery module on the surface of the front liquid cooling plate on the surface of the first installation frame, and cool or heat the surface, thereby realizing the versatility of facing the dark rotation of the battery module.

[0019] In winter, when the battery needs to be heated under low temperature conditions, the liquid inlet solenoid valve is closed, and the water pump on the surface of the liquid outlet pipe works to evacuate the front liquid cooling plate and the rear liquid cooling plate, while the hot liquid solenoid valve in the series heating pipe is opened, and the high-temperature coolant is poured into the side liquid cooling tank of the outer frame through the three-way joint, and then poured into the front liquid cooling plate through the liquid cooling end plate and the through hole on the surface of the side liquid cooling tank, so as to heat the area below the battery module on the surface of the front liquid cooling plate, and at the same time, the high-temperature coolant is poured into the battery module through the upper end insulation hose of the three-way joint. The cooling liquid is transported to the surface of the rear end liquid cooling plate on the surface of the second mounting frame to heat the surface of the battery module below it, avoiding the situation where the high temperature cooling liquid is easily neutralized and lowered by the original low temperature cooling liquid temperature inside the liquid cooling plate when entering the liquid cooling plate. When cooling is needed in summer, the hot liquid solenoid valve is closed and the liquid inlet solenoid valve is opened to allow the low temperature cooling liquid to enter the front liquid cooling plate through the liquid inlet pipe, and then enter the rear end liquid cooling plate on the surface of the second mounting frame through the series heating pipe and finally be discharged from the liquid outlet pipe, thereby achieving the purpose of cooling. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the present invention;

[0021] Figure 2 It is a three-dimensional schematic diagram of the installation frame of the present invention;

[0022] Figure 3This is a schematic diagram of the structure of the front-end liquid cooling plate of the present invention;

[0023] Figure 4 This is a schematic diagram of the series heating tubes of the present invention;

[0024] Figure 5 It is a plan view of the series heating tubes of the present invention.

[0025] Reference numerals:

[0026] 1. Installation frame one; 101. Outer frame; 102. Installation plug; 103. Movable splint; 104. Installation spring; 105. Protective leather pad; 106. Side liquid cooling groove; 107. Liquid cooling end plate; 108. Through hole; 109. Liquid inlet pipe; 110. Liquid inlet solenoid valve; 2. Front liquid cooling plate; 3. Battery module; 4. Series heating tube; 401. Upper sealing side plate; 402. Sealing joint; 403. Insulation hose; 404. Three-way joint; 405. Lower sealing joint; 406. Lower sealing side plate; 407. Hot liquid solenoid valve; 5. Installation frame two; 6. Rear liquid cooling plate; 7. Liquid outlet. DETAILED DESCRIPTION

[0027] To facilitate understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. Several embodiments of the present invention are shown in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0028] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "page", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like 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 invention 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 limiting the present invention.

[0029] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0030] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed", "provided with", etc. should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be internal communication between two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. Example

[0031] See attached Figure 1-5 , including an installation frame 1, a front-end liquid cooling plate 2 is installed inside the installation frame 1, a battery module 3 is installed on the upper surface of the front-end liquid cooling plate 2, a series heating tube 4 is fixedly connected to one side of the installation frame 1, and an installation frame 2 5 is installed on the other end surface of the series heating tube 4, a rear-end liquid cooling plate 6 is arranged inside the installation frame 2 5, and a liquid outlet 7 is fixedly connected to the other side surface of the installation frame 2 5, the installation frame 1 and the installation frame 2 5 are stacked up and down, and a battery module 3 is installed between them. The installation frame 1 and the installation frame 2 5 are connected to each other through a series heating tube 4, a water pump is arranged on the surface of the liquid outlet 7, the front liquid cooling plate 2 and the rear liquid cooling plate 6 are composed of a plurality of temperature-controlled liquid cooling plates, and through-hole plugs are arranged on the surfaces of both ends of the temperature-controlled liquid cooling plates. The device realizes the adaptability installation of the battery module 3 through the movable splint 103 in the installation frame 1, and realizes the switching of hot and cold liquid water through the switching of the liquid inlet solenoid valve 110 and the hot liquid solenoid valve 407.

[0032] The installation frame 1 includes an outer frame 101, a mounting block 102 is arranged on the upper surface of the outer frame 101, a movable splint 103 is movably connected to the surface of the mounting block 102, mounting springs 104 are arranged between the two end surfaces of the movable splint 103 and the mounting block 102, a protective leather pad 105 is fixedly connected to the inner surface of the movable splint 103, side liquid cooling grooves 106 are arranged on the two side surfaces of the outer frame 101, a liquid cooling end plate 107 is fixedly connected to the surface of the side liquid cooling groove 106, a plurality of through holes 108 are arranged on the surface of the liquid cooling end plate 107, a liquid inlet pipe 109 is fixedly connected to the upper end surface of the other side of the outer frame 101, and a liquid inlet solenoid valve 110 is arranged on the upper end surface of the liquid inlet pipe 109,

[0033] The mounting plugs 102 are provided with four pieces, and the movable splints 103 are provided with two pieces. The movable splints 103 are provided with springs 104 between the two mounting plugs 102 to form an elastic structure, and the two movable splints 103 and the protective leather pads 105 are provided with an elastic structure on both sides of the outer frame 101. The battery module 3 is provided with a support structure between the two movable splints 103. The liquid-cooled end plates 107 and the side liquid-cooled grooves 106 are provided with two pieces, and the two liquid-cooled end plates 107 and the side liquid-cooled grooves 106 are provided with two pieces. The inner surface of the end plate 107 is fixedly connected to the front liquid cooling plate 2, and the front liquid cooling plate 2 is interconnected with the side liquid cooling groove 106 through the through hole 108 on the surface of the front liquid cooling plate 2, and the side liquid cooling groove 106 is interconnected with the liquid inlet pipe 109, and one side of the side liquid cooling groove 106 is interconnected with the series heating pipe 4. The structure of the mounting frame 1 is consistent with that of the mounting frame 2 5, and the difference is that one side of the mounting frame 1 is fixedly connected to the liquid inlet pipe 109, and the upper end of the mounting frame 2 5 is fixedly connected to the liquid outlet pipe 7.

[0034] In this embodiment, when installing the battery module 3, the battery module 3 is inserted into the gap between the mounting frame 1 and the mounting frame 2 5, so that the mounting frame 2 5 contacts the protective leather pad 105 on the inner side of the movable splint 103, avoiding direct contact between the battery module 3 and the movable splint 103 to cause damage to the outer shell. At the same time, the battery module 3 pushes the movable splint 103 and the protective leather pad 105 to move on the surface of the mounting plug 102, so that the movable splint 103 and the protective leather pad 105 clamp the battery module 3 on the surface of the front liquid cooling plate 2 on the surface of the mounting frame 1, and cools or heats the surface, thereby realizing the versatility of facing the dark rotation of the battery module 3.

[0035] The series heating tube 4 includes an end sealing side plate 401 fixedly connected to the surface of the installation frame 25, a sealing joint 402 is fixedly connected to the surface of the end sealing side plate 401, a thermal insulation hose 403 is fixedly connected to the lower end of the sealing joint 402, a three-way joint 404 is fixedly connected to the lower end surface of the thermal insulation hose 403, a lower sealing joint 405 is arranged on one side of the three-way joint 404, a lower end sealing side plate 406 is fixedly connected to one side of the installation frame 1, a hot liquid solenoid valve 407 is arranged on the lower end surface of the three-way joint 404, the lower end sealing side plate 406 and the end sealing side plate 401 are respectively fixedly connected to one side of the installation frame 1 and the installation frame 25, and the upper end surface of the three-way joint 404 is connected to the thermal insulation hose 403.

[0036] In this embodiment, in a low-temperature environment in winter, when the battery needs to be heated, the liquid inlet solenoid valve 110 is closed, and the water pump on the surface of the liquid outlet pipe 7 works to evacuate the interior of the front liquid cooling plate 2 and the rear liquid cooling plate 6, while the hot liquid solenoid valve 407 in the series heating tube 4 is opened, and the high-temperature coolant is filled into the side liquid cooling groove 106 of the outer frame 101 through the three-way joint 404, and is filled into the front liquid cooling plate 2 through the liquid cooling end plate 107 and the through hole 108 on the surface of the side liquid cooling groove 106, so as to heat the area below the battery module 3 on the surface of the front liquid cooling plate 2, and at the same time, the three-way joint 404 is used to The upper end insulation hose 403 transports the high-temperature coolant to the surface of the rear end liquid cooling plate 6 on the surface of the installation frame 2 5, and heats the surface of the battery module 3 thereunder, thereby preventing the coolant with a higher temperature from being easily neutralized and lowered by the original low-temperature coolant temperature inside the liquid cooling plate when it enters the interior of the liquid cooling plate. When cooling is needed in summer, the hot liquid solenoid valve 407 is closed and the liquid inlet solenoid valve 110 is opened, so that the low-temperature coolant enters the interior of the front liquid cooling plate 2 through the liquid inlet pipe 109, and then enters the rear end liquid cooling plate 6 on the surface of the installation frame 2 5 through the series heating pipe 4, and is finally discharged from the liquid outlet pipe 7, thereby achieving the purpose of cooling.

[0037] It should be noted that, in the present technical solution, the circulation operation of the low-temperature liquid cooling water is realized by means of the existing heat exchange equipment, which will not be elaborated here.

[0038] The above-described embodiments only express a certain implementation mode of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the patent scope of the present invention. It should be pointed out that, for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be based on the attached claims.

Claims

1. A series liquid cooling plate with a low-temperature heating bypass shunt structure, characterized in that: The invention comprises an installation frame 1 (1), wherein a front-end liquid cooling plate (2) is installed inside the installation frame 1 (1), a battery module (3) is installed on the upper surface of the front-end liquid cooling plate (2), a series heating tube (4) is fixedly connected to one side of the installation frame 1 (1), an installation frame 2 (5) is installed on the other end surface of the series heating tube (4), a rear-end liquid cooling plate (6) is arranged inside the installation frame 2 (5), and a liquid outlet (7) is fixedly connected to the other side surface of the installation frame 2 (5), The installation frame 1 (1) comprises an outer frame body (101), an installation block (102) is arranged on the upper surface of the outer frame body (101), a movable splint (103) is movably connected to the surface of the installation block (102), installation springs (104) are arranged between the two end surfaces of the movable splint (103) and the installation block (102), a protective leather pad (105) is fixedly connected to the inner surface of the movable splint (103), side liquid cooling grooves (106) are arranged on the two side surfaces of the outer frame body (101), a liquid cooling end plate (107) is fixedly connected to the surface of the side liquid cooling groove (106), a plurality of through holes (108) are arranged on the surface of the liquid cooling end plate (107), a liquid inlet pipe (109) is fixedly connected to the upper end surface of the other side of the outer frame body (101), and a liquid inlet solenoid valve (110) is arranged on the upper end surface of the liquid inlet pipe (109), The series heating tube (4) comprises an end sealing side plate (401) fixedly connected to the surface of the second installation frame (5); a sealing joint (402) is fixedly connected to the surface of the end sealing side plate (401); a heat preservation hose (403) is fixedly connected to the lower end of the sealing joint (402); a three-way joint (404) is fixedly connected to the lower end surface of the heat preservation hose (403); a lower sealing joint (405) is provided on one side of the three-way joint (404); a lower end sealing side plate (406) is fixedly connected to one side of the installation frame (1); and a hot liquid solenoid valve (407) is provided on the lower end surface of the three-way joint (404).

2. A series liquid cooling plate with a low-temperature heating bypass shunt structure according to claim 1, characterized in that: The installation frame 1 (1) and the installation frame 2 (5) are stacked up and down, and a gap for installing a battery module (3) is provided between them. The installation frame 1 (1) and the installation frame 2 (5) are connected to each other through a series heating tube (4). A water pump is provided on the surface of the liquid outlet (7). The front liquid cooling plate (2) and the rear liquid cooling plate (6) are both composed of a plurality of temperature-controlled liquid cooling plates, and through-hole plugs are provided on the surfaces of both ends of the temperature-controlled liquid cooling plates.

3. The series liquid cooling plate with a low-temperature heating bypass shunt structure according to claim 1, characterized in that: Four mounting plugs (102) are provided, and two movable splints (103) are provided. The movable splint (103) forms an elastic structure between two mounting plugs (102) by means of a mounting spring (104), and the two movable splints (103) and a protective leather pad (105) form an elastic structure on both sides of the outer frame (101), and the battery module (3) forms a supporting structure between the two movable splints (103).

4. The series liquid cooling plate with a low-temperature heating bypass shunt structure according to claim 1, characterized in that: Two liquid-cooling end plates (107) and two side liquid-cooling grooves (106) are provided, and the inner surfaces of the two liquid-cooling end plates (107) are fixedly connected to the front liquid-cooling plate (2); the front liquid-cooling plate (2) is interconnected with the side liquid-cooling groove (106) via a through hole (108) on the surface of the front liquid-cooling plate (2); and the side liquid-cooling groove (106) is interconnected with the liquid inlet pipe (109).

5. The series liquid cooling plate with a low-temperature heating bypass shunt structure according to claim 1, characterized in that: One side of the side liquid cooling tank (106) is interconnected with the series heating pipe (4), and the structures of the mounting frame 1 (1) and the mounting frame 2 (5) are consistent, except that one side of the mounting frame 1 (1) is fixedly connected to the liquid inlet pipe (109), and the upper end of the mounting frame 2 (5) is fixedly connected to the liquid outlet pipe (7).

6. The series liquid cooling plate with a low-temperature heating bypass shunt structure according to claim 1, characterized in that: The lower end sealing side plate (406) and the end sealing side plate (401) are respectively fixedly connected to one side of the installation frame 1 (1) and the installation frame 2 (5), and the upper end surface of the three-way joint (404) is connected to the insulation hose (403).

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