Connector, cooling plate, battery pack and power utilization system

Abstract

The utility model discloses a connector, a cooling plate, a battery pack and a power utilization system. The connector comprises a main body, wherein a flow channel is formed in the main body; the adjuster is installed in the main body and comprises a first magnetic part, a second magnetic part and an adjusting part, the first magnetic part and the second magnetic part are oppositely arranged, and the adjusting part is connected with the first magnetic part and the second magnetic part; the adjusting part is suitable for adjusting the relative position between the first magnetic part and the second magnetic part along with the temperature change in the flow channel and enabling the first magnetic part and / or the second magnetic part to move towards or away from the flow channel, so that the first magnetic part and / or the second magnetic part adjust the opening degree of the flow channel. According to the connector, the acting force between the first magnetic part and the second magnetic part is dynamically adjusted along with temperature changes, then the saturation pressure of the flow channel can be effectively adjusted, adjustment of the temperature in the flow channel is further achieved, and it is guaranteed that the temperature is always in the optimal range.

Description

Technical Field

[0001] The utility model generally relates to the technical field of vehicles, and in particular to a joint, a cooling plate, a battery pack and an electricity system. Background Art

[0002] In the related art, the temperature of the refrigerant is adjusted by adjusting the saturated pressure of the refrigerant in the direct cooling plate, so that the power battery is maintained in the most suitable temperature range. However, the related art still has the following problems: the saturated pressure of the refrigerant cannot be adjusted dynamically and the structure of the direct cooling system is complicated and the cost is high. Utility Model Content

[0003] In view of the above defects or deficiencies in the prior art, it is desirable to provide a joint, a cooling plate, a battery pack and a power system. Through the setting of a regulator, the temperature can be reliably regulated to ensure that the temperature is always within the optimal range, with a simple structure, low cost and easy implementation.

[0004] In a first aspect, the utility model provides a joint, the joint comprising:

[0005] A main body, wherein a flow channel is provided inside the main body;

[0006] The regulator is installed inside the main body, and the regulator includes a first magnetic member, a second magnetic member, and an adjusting member, wherein the first magnetic member and the second magnetic member are arranged opposite to each other, and the adjusting member is respectively connected to the first magnetic member and the second magnetic member;

[0007] The regulating member adjusts the relative position between the first magnetic member and the second magnetic member as the temperature inside the flow channel changes and moves the first magnetic member and / or the second magnetic member toward or away from the flow channel, so that the first magnetic member and / or the second magnetic member can adjust the opening size of the flow channel.

[0008] As an optional solution, the adjusting part includes a retractable part, and the two ends of the retractable part in the length direction are respectively connected to the first magnetic part and the second magnetic part. The retractable part retracts and retracts as the temperature inside the flow channel changes. The retractability of the retractable part is used to drive the first magnetic part and / or the second magnetic part to move toward or away from the flow channel.

[0009] As an optional solution, the retractable part is a memory metal part.

[0010] As an optional solution, at least one of the first magnetic component and the second magnetic component is a magnet.

[0011] As an optional solution, the magnet is cylindrical, and the radius of the magnet is greater than or equal to the radius of the flow channel.

[0012] As an optional solution, an installation groove is opened inside the main body, extending from the side wall of the flow channel toward the outside of the side wall of the main body, and the installation groove runs through the flow channel. The first magnetic part and the second magnetic part are respectively installed in the installation groove and located on both sides of the flow channel, and the adjusting part is located between the first magnetic part and the second magnetic part.

[0013] As an optional solution, the joint further includes a sealing member, which is installed in the installation groove and is sealed with the installation groove.

[0014] As an optional solution, one of the first magnetic member and the second magnetic member is connected to the blocking member, and the other one can move toward or away from the flow channel under the drive of the adjusting member.

[0015] In a second aspect, the utility model provides a cooling plate, comprising the joint in the first aspect, wherein the joint is mounted on the cooling plate.

[0016] In a third aspect, the utility model provides a battery pack, including the battery pack of the second aspect, wherein the cooling plate is used for exchanging heat with the battery pack.

[0017] In a fourth aspect, the utility model provides an electric power system, comprising the battery pack of the third aspect, wherein the battery pack is used to supply power to the electric power system.

[0018] The connector of the utility model is provided with a regulator installed in the main body of the connector, and the regulator includes a first magnetic part, a second magnetic part and a regulating part; the regulating part adjusts the relative position between the first magnetic part and the second magnetic part as the temperature inside the flow channel changes and makes the first magnetic part and / or the second magnetic part move toward or away from the flow channel, so as to achieve the first magnetic part and / or the second magnetic part to adjust the opening size of the flow channel. The adjustment of the opening size of the flow channel realizes the adjustment of the temperature inside the flow channel, thereby ensuring that the flow channel is always at the optimal temperature; and the application sets the first magnetic part, the second magnetic part and the regulating part, combined with the sensitive characteristics of the regulating part to temperature and the effect of magnetic force, which is conducive to increasing the sensitivity of the regulator, while avoiding the problem that the regulating part cannot reliably drive the first magnetic part and / or the second magnetic part to move, thereby ensuring the reliable use of the regulator; in addition, there is no need to add an additional control valve, the structure is simple, easy to implement, and the cost is low. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0020] Figure 1 This is a schematic diagram of the external structure of a connector of the utility model;

[0021] Figure 2 It is a schematic diagram of the cross-sectional structure of a joint of the utility model;

[0022] Figure 3 This is a structural schematic diagram of a regulator in a joint of the utility model;

[0023] Figure 4 The utility model is a schematic diagram of a structural explosion of a direct cooling plate.

[0024] In the figure,

[0025] 100, connector;

[0026] 110, main body, 111, flow channel, 112, mounting groove;

[0027] 120, regulator, 121, first magnetic member, 122, second magnetic member, 123, regulator;

[0028] 130. Blocking parts;

[0029] 200, direct cooling plate, 210, uniform temperature plate, 220, flow channel plate. DETAILED DESCRIPTION

[0030] The present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the relevant utility model, rather than to limit the utility model. It is also necessary to explain that, for ease of description, only the parts related to the utility model are shown in the accompanying drawings.

[0031] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0032] Based on the above problems, Figure 1-3 As shown, the present application provides a connector 100, and the connector 100 includes:

[0033] A main body 110, wherein a flow channel 111 is formed inside the main body 110;

[0034] The regulator 120 is installed inside the main body 110. The regulator 120 includes a first magnetic member 121, a second magnetic member 122 and an adjusting member 123. The first magnetic member 121 and the second magnetic member 122 are arranged opposite to each other, and the adjusting member is connected to the first magnetic member and the second magnetic member respectively.

[0035] The adjusting member 123 is suitable for adjusting the relative position between the first magnetic member 121 and the second magnetic member 122 as the temperature inside the flow channel 111 changes, and moving the first magnetic member 121 and / or the second magnetic member 122 toward or away from the flow channel 111, so as to enable the first magnetic member 121 and / or the second magnetic member 122 to adjust the opening size of the flow channel 111.

[0036] It should be noted that the joint 100 of the embodiment of the present application is mainly used for the refrigerant to circulate into the direct cooling plate 200, and the direct cooling plate 200 is used to exchange heat with the power battery to ensure that the power battery is always within the optimal operating temperature range, ensure the normal operation of the power battery, and extend its service life.

[0037] In some embodiments, the connector 100 of the embodiment of the present application can be installed on the direct cooling plate 200, connecting the refrigerant supply system (wherein the refrigerant supply system can be an air-conditioning system on a vehicle) and the direct cooling plate 200, so that the refrigerant flows into the interior of the direct cooling plate 200 through the connector 100, thereby achieving temperature regulation of the power battery.

[0038] It is understandable that a flow channel 111 is provided on the main body 110 of the joint 100, and the flow channel 111 includes a refrigerant input flow channel and a refrigerant output flow channel, which is used for the refrigerant to circulate between the direct cooling plate 200 and the refrigerant supply system. Among them, the refrigerant input flow channel can be but not limited to one, two or more than two, and similarly, the refrigerant output flow channel can be but not limited to one, two or more than two, and it can be set according to actual needs, as long as it can ensure that the refrigerant can circulate between the refrigerant supply system and the direct cooling plate 200. In order to ensure that the temperature of the power battery is maintained reliably and effectively, the regulator 120 can be installed on the refrigerant output flow channel to adjust the opening size of the refrigerant output flow channel.

[0039] It can also be understood that the regulator 120 is installed on the main body 110, and its main purpose is to adjust the resistance of the refrigerant circulation inside the flow channel 111 by adjusting the opening size of the flow channel 111, so as to achieve the adjustment of the refrigerant saturation pressure. As the refrigerant saturation pressure changes, the corresponding refrigerant temperature changes, thereby effectively achieving the dynamic adjustment of the temperature of the power battery, so that the power battery is always in the optimal operating temperature range, and the service life of the power battery is improved. The regulator 120 only needs to dynamically adjust the relative position between the first magnetic member 121 and the second magnetic member 122 and move the first magnetic member 121 and / or the second magnetic member 122 toward or away from the flow channel 111 through the adjustment member 123 as the temperature changes, so as to achieve different degrees of blockage of the flow channel 111 to adjust the opening size of the flow channel 111, thereby adjusting the size of the saturation pressure of the refrigerant in the flow channel 111, and then achieving the adjustment of the temperature of the refrigerant. It should be noted that the force here is not limited to one or both of magnetic force, pressure or tension.

[0040] In some embodiments, both the first magnetic member 121 and the second magnetic member 122 may be magnets with magnetic properties themselves, and the magnetic properties of the first magnetic member 121 and the second magnetic member 122 may be opposite or the same; in other embodiments, one of the first magnetic member 121 and the second magnetic member 122 may be a magnet, and the other may be a ferromagnetic metal, such as but not limited to silicon steel sheets, iron, cobalt, nickel, aluminum-nickel alloy, etc.; in other embodiments, at least one of the first magnetic member 121 and the second magnetic member 122 may also be a metal on which a wire is wound to generate a magnetic field after power is applied. The embodiments of the present application do not make specific limitations on this, as long as it can be ensured that there is magnetic force between the first magnetic member 121 and the second magnetic member 122.

[0041] It can also be understood that the adjustment member 123 can be any temperature-sensitive component that can reliably adjust the magnitude of the force between the first magnetic member 121 and the second magnetic member 122 as the temperature changes. In some embodiments, the adjusting member 123 may be a connecting member made of a thermosensitive memory metal material, which expands and contracts to a certain extent as the temperature changes. The expansion and contraction of the memory metal applies tension or pressure to the first magnetic member 121 and / or the second magnetic member 122. Under the combined action of the magnetic force of the first magnetic member 121 and the second magnetic member 122 and the tension or pressure, the relative position between the first magnetic member 121 and the second magnetic member 122 changes, thereby driving the first magnetic member 121 and / or the second magnetic member 122 to move toward or away from the flow channel 111, thereby adjusting the opening size of the flow channel 111; in some other embodiments, the adjusting member 123 may also be a temperature sensor and a controller, which controls the size of the force between the first magnetic member 121 and the second magnetic member 122 according to the temperature information collected by the temperature sensor, and drives the first magnetic member 121 and / or the second magnetic member 122 to move toward or away from the flow channel 111, thereby adjusting the opening size of the flow channel 111.

[0042] It can also be understood that there is a magnetic force between the first magnetic member 121 and the second magnetic member 122, which is conducive to dynamically adjusting the opening size of the flow channel 111 according to temperature changes under the action of the adjusting member 123. For example, when opposite magnetic repulsions are generated between the first magnetic member 121 and the second magnetic member 122, a pulling force is generated on the adjusting member 123 made of memory metal. When the temperature of the refrigerant in the flow channel 111 is too low (below 20°C), the adjusting member 123 contracts, generating a pulling force on the first magnetic member 121 and the second magnetic member 122. The pulling force is greater than the magnetic repulsion between the first magnetic member 121 and the second magnetic member 122, thereby driving the first magnetic member 121 and / or the second magnetic member 122 to move toward the flow channel 111, blocking the flow channel 111, increasing the flow resistance of the refrigerant, and thus increasing the saturation pressure. The refrigerant temperature increases, thereby keeping the power battery in the most suitable temperature range; when the temperature of the refrigerant in the flow channel 111 is too high (higher than 20°C but lower than 25°C), the memory metal stretches, and generates pressure on the first magnetic member 121 and the second magnetic member 122, and the pressure is greater than the magnetic repulsion between the first magnetic member 121 and the second magnetic member 122, thereby driving the first magnetic member 121 and / or the second magnetic member 122 to move away from the flow channel 111, reducing the refrigerant flow resistance and thus reducing the saturation pressure, so that the refrigerant temperature is reduced, thereby keeping the power battery in the most suitable temperature range.

[0043] The connector 100 of the embodiment of the present application solves the problem that the existing technology cannot dynamically adjust the temperature. The connector 100 of the embodiment of the present application is provided with a regulator 120, and the regulating member 123 in the regulator 120 adjusts the magnitude of the force between the first magnetic member 121 and the second magnetic member 122 as the temperature changes, thereby achieving the adjustment of the opening size of the flow channel 111, and the adjustment of the opening size of the flow channel 111 is achieved by adjusting the internal temperature of the flow channel 111, thereby ensuring that the flow channel 111 is always at the optimal temperature; and the present application sets the first magnetic member, the second magnetic member and the regulating member, combined with the sensitive characteristics of the regulating member to temperature and the effect of magnetic force, which is conducive to increasing the sensitivity of the regulator, while avoiding the problem that the regulating member cannot reliably drive the first magnetic member and / or the second magnetic member to move, thereby ensuring the reliable use of the regulator; in addition, there is no need to add an additional control valve, the structure is simple, easy to implement, and the cost is low.

[0044] As a feasible method, the adjusting member 123 includes a retractable member, both ends of which are respectively connected to the first magnetic member 121 and the second magnetic member 122. The retractable member retracts and contracts with the temperature change inside the flow channel 111. The retractability of the retractable member is used to drive the first magnetic member 121 and / or the second magnetic member 122 to move toward or away from the flow channel 111.

[0045] It is understandable that the retractable member can be, but is not limited to, a connector made of other deformable materials such as a spring. The retractable member is sensitive to temperature and can deform and retract itself as the temperature changes, thereby applying pressure or tension to the first magnetic member 121 and the second magnetic member 122.

[0046] The structure of the retractable member in this embodiment is simple, and no additional components such as temperature sensors and controllers are required. It is easy to implement and simplifies the overall structure. At the same time, it can reliably adjust the opening size of the flow channel 111.

[0047] In a preferred embodiment, the retractable member is a memory metal member, which is made of memory metal, and the memory metal is a thermosensitive material.

[0048] Among them, in actual processing, it is necessary to pre-calculate the contraction ratio of the memory metal as the temperature changes, and calculate the moving distance of the first magnetic part 121 and / or the second magnetic part 122 based on the ratio, so as to determine the installation position of the first magnetic part 121 and / or the second magnetic part 122, so as to ensure that the first magnetic part 121 and the second magnetic part 122 can reliably adjust the opening size of the flow channel 111.

[0049] In some embodiments, after determining the memory metal, the installation position of the magnet can be determined based on the deformation parameters of the memory metal itself and the magnetic field force between the first magnetic part and the second magnetic part, thereby ensuring that the expansion and contraction of the memory metal can drive the first and / or second magnetic part to move, thereby achieving adjustment of the opening of the flow channel.

[0050] As an implementable manner, at least one of the first magnetic member 121 and the second magnetic member 122 is a magnet.

[0051] It is understandable that the first magnetic component 121 can be a magnet, and correspondingly the second magnetic component 122 can be a ferromagnetic component, that is, a metal that can be absorbed by a magnet; or the second magnetic component 122 can be a magnet, and the first magnetic component 121 can be a ferromagnetic component, that is, a metal that can be absorbed by a magnet; or the first magnetic component 121 and the second magnetic component 122 are both magnets; or one of the first magnetic component 121 and the second magnetic component 122 is a magnet, and the other is a component that generates a magnetic field when electricity is applied, such as a wire wrapped around a metal surface.

[0052] In this embodiment, magnets are selected, which are low-cost and easy to implement.

[0053] In a preferred embodiment, the magnet is cylindrical, and the radius of the magnet is greater than or equal to the radius of the flow channel 111 .

[0054] The radius of the magnet in this embodiment is conducive to ensuring that the magnet can reliably block the flow channel 111 and adjust the opening size of the flow channel 111.

[0055] As a feasible method, an installation groove 112 is opened inside the main body 110, and the installation groove 112 extends from the side wall of the flow channel 111 toward the outside of the side wall of the main body, and the installation groove 112 passes through the flow channel 111. The first magnetic component 121 and the second magnetic component 122 are respectively installed in the installation groove 112 and are located on both sides of the flow channel 111. The adjustment component 123 is located between the first magnetic component 121 and the second magnetic component 122.

[0056] It can be understood that the mounting groove 112 is mainly used to install the regulator 120. The mounting groove 112 is perpendicular to the flow channel 111 and passes through the flow channel 111. On the one hand, it is beneficial to the movement of the first magnetic component 121 and / or the second magnetic component 122 to reliably adjust the opening size of the flow channel 111; on the other hand, it is beneficial to ensure that at least part of the regulating component 123 is located inside the flow channel 111, and the force between the first magnetic component 121 and the second magnetic component 122 can be reliably adjusted according to the change of the refrigerant temperature inside the flow channel 111.

[0057] In this embodiment, the setting of the installation groove 112 is conducive to the installation of the regulator 120, and is also conducive to the adjustment member 123 directly contacting the internal temperature of the flow channel 111, and adjusting the opening size of the flow channel 111 according to temperature changes; at the same time, the installation groove 112 is extended inward from the side of the main body 110, which is conducive to the convenient installation of the regulator 120.

[0058] In some embodiments, the connector 100 further includes a blocking member 130 , which is installed in the mounting groove 112 and is sealed with the mounting groove 112 .

[0059] The blocking member 130 in this embodiment is mainly used to seal the notch of the installation groove 112 to prevent the refrigerant from flowing out of the installation groove 112 and also to prevent external impurities from entering the flow channel 111 .

[0060] Among them, the sealing member 130 can be installed in the installation groove 112 in any way, such as but not limited to welding or screwing; in some embodiments, a sealing ring can also be installed between the sealing member 130 and the inside of the installation groove 112 to ensure the sealing between the sealing member 130 and the installation groove 112.

[0061] In some embodiments, one of the first magnetic member 121 and the second magnetic member 122 is connected to the blocking member 130 , and the other one can move toward or away from the flow channel 111 driven by the adjusting member 123 .

[0062] In this embodiment, one of the first magnetic member 121 and the second magnetic member 122 is connected to the blocking member 130, which is conducive to fixing the magnetic member, making it easier to move the next magnetic member driven by the adjusting member 123, thereby ensuring reliable adjustment of the opening size of the flow channel 111.

[0063] In some other embodiments, the regulating member 123 includes a controller and a temperature sensor, and the temperature sensor is installed inside the flow channel 111 and is used to detect the temperature inside the flow channel 111;

[0064] The first magnetic member 121 and the second magnetic member 122 both include metal and a wire wound around the metal;

[0065] The controller controls the power supply to the wire according to the temperature received by the temperature sensor, so as to adjust the magnitude of the acting force between the first magnetic member 121 and the second magnetic member 122 .

[0066] In this embodiment, the temperature sensor is used to detect the temperature inside the flow channel 111 in real time. The controller controls the first magnetic component 121 and the second magnetic component 122 to generate a magnetic field based on the temperature information inside the flow channel 111. The force between the first magnetic component 121 and the second magnetic component 122 changes under the action of the mutual magnetic field, thereby driving the first magnetic component 121 and / or the second magnetic component 122 to move, thereby adjusting the opening size of the flow channel 111.

[0067] In summary, the connector 100 of the embodiment of the present application is provided with a regulator 120, and the regulating member 123 in the regulator 120 adjusts the magnitude of the force between the first magnetic member 121 and the second magnetic member 122 as the temperature changes, thereby achieving the adjustment of the opening size of the flow channel 111, and the adjustment of the internal temperature of the flow channel 111 is achieved by adjusting the opening size of the flow channel 111, thereby ensuring that the inside of the flow channel 111 is always at an optimal temperature; and, the present application is provided with a first magnetic member, a second magnetic member and a regulating member, and the combination of the sensitive characteristics of the regulating member to temperature and the effect of magnetic force is conducive to increasing the sensitivity of the regulator, while avoiding the problem that the regulating member cannot reliably drive the first magnetic member and / or the second magnetic member to move, thereby ensuring the reliable use of the regulator; in addition, there is no need to add an additional control valve, the structure is simple, easy to implement, and the cost is low;

[0068] Furthermore, the adjusting member 123 is a retractable member made of memory metal, which has a simple structure and does not require additional components such as temperature sensors and controllers. It is easy to implement and simplifies the overall structure, while being able to reliably adjust the opening size of the flow channel 111.

[0069] In a second aspect, an embodiment of the present application provides a cooling plate, comprising the joint 100 of the first aspect, the joint 100 being mounted on the cooling plate, wherein the cooling plate may be a direct cooling plate 200, or a liquid cooling plate.

[0070] It is understandable that the direct cooling plate 200 has all the features and advantages of the connector 100 described above, which will not be repeated here. In general, the direct cooling plate 200 has a simple structure and can dynamically adjust the temperature of the direct cooling plate 200 so that the power battery is always in the most suitable temperature range.

[0071] Specifically, the direct cooling plate 200 includes a temperature equalizing plate 210 and a flow channel plate 220. A plurality of flow channels 111 are provided in the flow channel plate 220. The connector 100 is installed on the direct cooling plate 200. The flow channels 111 in the connector 100 are connected to the flow channels 111 on the flow channel plate 220 for transporting the refrigerant to the flow channel plate 220 to ensure the temperature of the power battery is adjusted.

[0072] In a third aspect, an embodiment of the present application provides a battery pack, including the cooling plate of the second aspect, which is used to exchange heat with the battery pack. As a result, the battery pack has all the features and advantages of the direct cooling plate 200 described above, which will not be repeated here. In general, the battery pack can dynamically adjust the operating temperature to ensure that it is always within the most suitable temperature range and has a longer service life.

[0073] In a fourth aspect, an embodiment of the present application provides an electric power system, comprising the battery pack of the third aspect, wherein the battery pack is used to supply power to the electric power system.

[0074] The electrical equipment may be a vehicle.

[0075] Vehicles, including:

[0076] Refrigerant supply system; and,

[0077] The direct cooling plate 200 of the second aspect or the battery pack of the third aspect, the refrigerant supply system is connected to the direct cooling plate 200 through the connector 100. Thus, the vehicle has all the features and advantages of the direct cooling plate described above, which will not be repeated here. In general, the power system of the vehicle is reliable and has a long service life.

[0078] It is understandable that the refrigerant supply system may be an air conditioner of the vehicle.

[0079] The direct cooling plate 200 of the present invention is described below through an embodiment.

[0080] like Figure 1-4As shown, a joint 100 is installed on the direct cooling plate 200, and a refrigerant input channel and a refrigerant output channel are provided inside the main body 110 of the joint 100. A mounting groove 112 is provided in the area near the refrigerant output channel on the main body 110 of the joint 100. The mounting groove 112 extends inward from the side of the main body 110 perpendicular to the refrigerant output channel and passes through the refrigerant output channel. A first magnetic member 121 and a second magnetic member 122 are installed inside the mounting groove 112. The first magnetic member 121 and the second magnetic member 122 Located on both sides of the flow channel 111, an adjusting member 123 made of memory metal is installed between the first magnetic member 121 and the second magnetic member 122. A sealing member 130 is sealed and installed in the area of ​​the installation groove 112 close to the outside of the main body 110. The first magnetic member 121 is fixed on the sealing member 130. The first magnetic member 121 and the second magnetic member 122 have the same magnetic properties. Opposite magnetic repulsion is generated between the first magnetic member 121 and the second magnetic member 122, which generates a pulling force on the adjusting member 123 made of memory metal. When the temperature of the refrigerant in the flow channel 111 is too low (lower than 20°C), the regulating member 123 contracts, generating a pulling force on the first magnetic member 121 and the second magnetic member 122, the pulling force is greater than the magnetic repulsion between the first magnetic member 121 and the second magnetic member 122, thereby driving the first magnetic member 121 and / or the second magnetic member 122 to move toward the flow channel 111, blocking the flow channel 111 to increase the refrigerant flow resistance and thereby increase the saturation pressure, so that the refrigerant temperature rises, thereby keeping the power battery in the most suitable temperature range; when the temperature of the refrigerant in the flow channel 111 is too high (higher than 20°C but lower than 25°C), the memory metal stretches, generating pressure on the first magnetic member 121 and the second magnetic member 122, the pressure is greater than the magnetic repulsion between the first magnetic member 121 and the second magnetic member 122, thereby driving the first magnetic member 121 and / or the second magnetic member 122 to move away from the flow channel 111, reducing the refrigerant flow resistance and thereby reducing the saturation pressure, so that the refrigerant temperature decreases, thereby keeping the power battery in the most suitable temperature range. Therefore, through the magnetic field force between the first magnetic part 121 and the second magnetic part, and the pressure or tension of the adjusting part 123 on the first magnetic part 121 and / or the second magnetic part 122, the purpose of dynamically adjusting the saturation pressure and the refrigerant temperature of the direct cooling plate 200 is achieved, so that the refrigerant in the battery pack cell area is always maintained within the most suitable temperature range, thereby improving the life of the battery pack.

[0081] Compared with the prior art, the direct cooling plate of the embodiment of the present application does not need to connect a controllable resistance valve at the outlet end of the cold plate in the direct cooling system, and the controllable resistance valve is adjusted by using the signal fed back by the sensor; the direct cooling plate of the embodiment of the present application eliminates the sensor and the controllable resistance valve, and a regulator is set inside the joint of the direct cooling plate, and the absolute saturation pressure of the direct cooling plate is dynamically adjusted by using the magnetic field force and the contraction characteristics of the memory metal, so as to achieve the purpose of regulating the refrigerant temperature of the direct cooling plate and improve the life of the battery pack; at the same time, the temperature sensor and the controllable resistance valve in the whole vehicle system are eliminated, thereby achieving the effect of simplifying the structure and reducing costs.

[0082] It should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like used above to indicate positions or positional relationships are based on the positions 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 device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. 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 utility model, unless otherwise specified, "multiple" means two or more.

[0083] The above description is only a preferred embodiment of the present application and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the utility model involved in the present application is not limited to the technical solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the concept of the utility model. For example, the above features are replaced with the technical features with similar functions disclosed in the present application (but not limited to) by each other to form a technical solution.

Claims

1. A joint, characterized in that: The connector comprises: A main body, wherein a flow channel is provided inside the main body; An adjuster is installed inside the main body, the adjuster comprises a first magnetic member, a second magnetic member and an adjuster, the first magnetic member and the second magnetic member are arranged opposite to each other, and the adjuster is connected to the first magnetic member and the second magnetic member respectively; The regulating member is suitable for adjusting the relative position between the first magnetic member and the second magnetic member as the temperature inside the flow channel changes and moving the first magnetic member and / or the second magnetic member toward or away from the flow channel, so as to enable the first magnetic member and / or the second magnetic member to adjust the opening size of the flow channel.

2. The joint according to claim 1, characterized in that The adjusting member includes a retractable member, both ends of which are respectively connected to the first magnetic member and the second magnetic member. The retractable member retracts and contracts as the temperature inside the flow channel changes. The retractability of the retractable member is used to drive the first magnetic member and / or the second magnetic member to move toward or away from the flow channel.

3. The joint according to claim 2, characterized in that The retractable part is a memory metal part.

4. The connector according to claim 1, characterized in that At least one of the first magnetic member and the second magnetic member is a magnet.

5. The joint according to claim 4, characterized in that The magnet is cylindrical, and the radius of the magnet is greater than or equal to the radius of the flow channel.

6. The joint according to any one of claims 1 to 5, characterized in that: A mounting groove is provided inside the main body, and the mounting groove extends from the side wall of the flow channel toward the outside of the side wall of the main body, and the mounting groove passes through the flow channel. The first magnetic component and the second magnetic component are respectively installed in the mounting groove and are located on both sides of the flow channel, and the adjusting component is located between the first magnetic component and the second magnetic component.

7. The joint according to claim 6, characterized in that The joint further comprises a blocking piece, which is installed in the installation groove and is sealed with the installation groove.

8. The joint according to claim 7, characterized in that One of the first magnetic member and the second magnetic member is connected to the blocking member, and the other one can move toward or away from the flow channel under the drive of the adjusting member.

9. A cooling plate, characterized in that: The invention comprises the joint according to any one of claims 1 to 8, wherein the joint is installed on the cooling plate.

10. A battery pack, characterized in that: Comprising the cooling plate as claimed in claim 9, the cooling plate is used for exchanging heat with the battery pack.

11. The power system is characterized in that: Comprising the battery pack as claimed in claim 10, the battery pack is used to power the power consumption system.

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