Titanium alloy-aluminum mixed segmented combined type heating pipe assembly

Abstract

The utility model discloses a titanium alloy-aluminum mixed segmented combined type heating pipe assembly, which belongs to the field of new energy automobiles and comprises a first pipe body and a second pipe body which are arranged in parallel, the first pipe body is communicated with the second pipe body through a connecting pipe, a liquid inlet pipe communicated with the first pipe body is arranged at the bottom of the first pipe body, and a liquid outlet pipe communicated with the second pipe body is arranged at the bottom of the second pipe body. A liquid discharging pipe communicated with the second pipe body is arranged at the bottom of the second pipe body, heating assemblies capable of efficiently and uniformly heating battery liquid flowing through the first pipe body and the second pipe body are arranged in the first pipe body and the second pipe body, and a filtering assembly used for filtering residual impurities in the battery liquid is arranged on the liquid inlet pipe. According to the titanium alloy-aluminum mixed segmented combined type heating pipe assembly, by increasing the contact area with battery liquid and increasing the length of a heating path, the battery liquid can absorb heat more sufficiently in the flowing process, so that the heating efficiency is improved, impurities are intercepted in cooperation with the filtering assembly, and the reliability and safety of the heating pipe are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to new energy automobile technical field especially relates to a titanium alloy-aluminum mixed segmented combined heating pipe assembly. BACKGROUND

[0002] Under the background of the vigorous development of the new energy automobile industry, the performance of the battery as the core energy storage component is extremely remarkable under the influence of temperature. The temperature control of the battery liquid is crucial to the battery performance, life and safety. Taking the lithium ion battery as an example, in the low temperature environment, the chemical reaction rate in the battery is slowed down, the battery liquid viscosity increases, the ion conduction is blocked, which leads to the battery capacity attenuation, the charge and discharge efficiency reduction and the internal resistance increase, which seriously affects the cruising range and charging speed of the new energy automobile. In order to overcome the above problems, the battery liquid needs to be effectively heated to maintain its temperature in the appropriate interval and protect the battery performance.

[0003] The traditional battery liquid heating is the heating mode of single heating pipe, the contact area of single heating pipe and battery liquid is limited, and the battery liquid can only exchange heat with the heating pipe in a single path, which leads to slow heat transfer speed, long time required for battery liquid heating, and cannot quickly meet the temperature requirement of the battery in the low temperature environment. In addition, since there is only one heating pipe, the area close to the heating pipe is heated more, and the area away from the heating pipe is heated less, which easily causes local overheating or overcooling, so that the overall temperature of the battery liquid is uneven.

[0004] In addition, during the battery charging and discharging process, the electrode material will react chemically, and part of the electrode material may dissolve into the battery liquid to form impurities. These impurities will cause wear to the heating sheet in the heating pipe when entering the heating pipe with the battery liquid, and will also affect the normal flow and heat exchange of the battery liquid, leading to uneven heating. UTILITY MODEL CONTENTS

[0005] The utility model aims at: in order to solve the problem of the existing battery liquid heating mode of single heating pipe, the contact area of single heating pipe and battery liquid is limited, and the heating is uneven, and a titanium alloy-aluminum mixed segmented combined heating pipe assembly is provided.

[0006] In order to achieve the above purpose, the utility model adopts the following technology: a titanium alloy-aluminum mixed segmented combined heating pipe assembly, comprising first pipe body and second pipe body arranged in parallel, the first pipe body and the second pipe body are communicated through the connecting pipe, the bottom of the first pipe body is provided with the liquid inlet pipe communicated therewith, the bottom of the second pipe body is provided with the liquid outlet pipe communicated therewith, and the first pipe body and the second pipe body are provided with the heating assembly capable of efficiently and uniformly heating the battery liquid flowing therethrough, and the filter assembly for filtering the residual impurities in the battery liquid is arranged on the liquid inlet pipe.

[0007] As a further description of the above technical solution: the heating assembly comprises a metal pipe which is detachably mounted at the axial position of the first pipe body and the second pipe body through the mounting block, the inside of the metal pipe is provided with an electric heating rod, and the outside of the metal pipe is provided with a spiral heating sheet.

[0008] As a further description of the above technical solution: the heating sheet has a first connecting section which is attached to the metal pipe, and a second connecting section which is attached to the inner wall of the first pipe body and the second pipe body, wherein the height of the first connecting section is greater than the height of the second connecting section.

[0009] As a further description of the above technical solution: the filter assembly comprises a filter cartridge which is arranged in the liquid inlet pipe through the mounting seat, the filter cartridge is connected in communication with the first pipe body through a liquid inlet channel, and the bottom of the filter cartridge is provided with a first filter screen.

[0010] As a further description of the above technical solution: the side surface of the filter cartridge is provided with a side flow port which is connected in communication with the internal channel of the filter cartridge, and the side flow port is surrounded by a second filter screen.

[0011] As a further description of the above technical solution: the liquid inlet channel comprises a filter section and an acceleration section which are arranged in sequence along the flow direction of the battery liquid, and the cross-sectional area of the filter section is greater than the cross-sectional area of the acceleration section.

[0012] As a further description of the above technical solution: the two ends of the connecting pipe are detachably connected with the first pipe body and the second pipe body through the upper end cover respectively.

[0013] The liquid inlet pipe and the liquid outlet pipe are detachably connected with the first pipe body and the second pipe body through the lower end cover respectively.

[0014] As a further description of the above technical solution: the upper end cover and the lower end cover are both made of aluminum material, and the first pipe body and the second pipe body are both made of titanium alloy material.

[0015] As described above, due to the adoption of the above technical solution, the beneficial effects of the present application are:

[0016] 1. The two heating pipes increase the contact area and the heating path length with the battery liquid, so that the battery liquid can more fully absorb heat during the flow process, the heat transfer effect is better, thereby improving the heating efficiency, and the battery liquid can be heated to the required temperature faster, the battery liquid flows through the two heating pipes in sequence, which is equivalent to experiencing two heating processes, the local temperature difference can be reduced, the overall temperature of the battery liquid is more uniform, and the situation of overheating or overcooling in some areas is avoided, which is beneficial to the stability and consistency of the battery performance.

[0017] In addition, the cross section of the heating sheet is trapezoidal, so that the contact area of the heating sheet with the fluid is further increased, and more fluid can be exchanged with the same space, thereby improving the efficiency of heat transfer.

[0018] 2. The filter assembly can intercept metal chips and other impurities in the battery liquid, prevent the impurities from entering the heating pipe, avoid the impurities from causing abrasion to the heating sheet and the metal pipe inside the heating pipe, prolong the service life of the heating pipe, and the filter structure can avoid the impurities from gathering locally in the heating pipe, ensure the uniform flow of the battery liquid in the heating pipe, and ensure the consistency of the heating effect. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 An overall structure schematic diagram is shown according to an embodiment of the present application.

[0020] Figure 2 A sectional view is shown according to an embodiment of the present application.

[0021] Figure 3 A structure schematic diagram of a heating assembly is shown according to an embodiment of the present application. Figure 1 ;

[0022] Figure 4 A structure schematic diagram of a heating assembly is shown according to an embodiment of the present application. Figure 2 ;

[0023] Figure 5 A structure schematic diagram of a filter assembly is shown according to an embodiment of the present application.

[0024] LEGEND:

[0025] 1. First pipe body; 2. Second pipe body; 3. Upper end cover; 4. Lower end cover; 5. Connecting pipe; 6. Liquid inlet pipe; 7. Liquid outlet pipe; 8. Heating assembly; 81. Metal pipe; 82. Mounting block; 83. Electric heating rod; 84. Heating sheet; 841. First connecting section; 842. Second connecting section; 9. Filter assembly; 91. Mounting seat; 92. Liquid inlet channel; 921. Filter section; 922. Acceleration section; 93. Filter cartridge; 94. First filter screen; 95. Side flow port; 96. Second filter screen. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0027] Reference Figures 1-5 The embodiment provides a titanium alloy-aluminum mixed segmented combined heating pipe assembly, which comprises a first pipe body 1 and a second pipe body 2 arranged in parallel, the first pipe body 1 and the second pipe body 2 are communicated through a connecting pipe 5, wherein the two ends of the connecting pipe 5 are detachably connected with the first pipe body 1 and the second pipe body 2 through upper end covers 3 respectively, the bottom of the first pipe body 1 is provided with a liquid inlet pipe 6 communicated therewith, the bottom of the second pipe body 2 is provided with a liquid outlet pipe 7 communicated therewith, the liquid inlet pipe 6 and the liquid outlet pipe 7 are detachably connected with the first pipe body 1 and the second pipe body 2 through a lower end cover 4 respectively, and heating assemblies 8 capable of efficiently and uniformly heating battery liquid flowing therethrough are arranged in the first pipe body 1 and the second pipe body 2.

[0028] In the utility model, when the battery liquid needs to be heated, the heating assemblies 8 in the first pipe body 1 and the second pipe body 2 are started to perform electric heating, the battery liquid of the new energy battery enters the first pipe body 1 through the liquid inlet pipe 6 of the lower end cover 4 under the driving action of the pump, at this time, the heating assembly 8 in the first pipe body 1 heats the battery liquid in the first stage, after the battery liquid is heated in the first pipe body 1, the battery liquid enters the second pipe body 2 through the connecting pipe 5 of the upper end cover 3 under the driving of the pump, then continues to be heated through the heating assembly 8 in the second pipe body 2, and then is discharged through the liquid outlet pipe 7 at the bottom of the second pipe body 2, the battery liquid is circulated into the first pipe body 1 and the second pipe body 2 to be heated under the action of the pump, the first pipe body 1 and the second pipe body 2 are connected in a segmented combined mode through the connecting pipe 5, the two heating pipes increase the contact area and the heating path length with the battery liquid, so that the battery liquid can more fully absorb heat in the flowing process, the heat transfer effect is better, thereby the heating efficiency is improved, the battery liquid can be heated to the required temperature more quickly, the battery liquid flows through the two heating pipes in turn, which is equivalent to experiencing two heating processes, the local temperature difference can be reduced, the overall temperature of the battery liquid is more uniform, the overheating or overcooling of partial areas is avoided, and the stability and consistency of the battery performance are beneficial.

[0029] It should be noted that the upper end cover 3 and the lower end cover 4 are made of aluminum, the first pipe body 1 and the second pipe body 2 are made of titanium alloy, the strength of aluminum is high, the structure stability of the upper end cover 3 and the lower end cover 4 can be ensured, the pressure of the battery liquid in the heating pipe and the external force that may be received in the use process can be effectively borne, the density of aluminum is relatively small, the weight of the whole heating pipe is light, installation and maintenance are facilitated, the pipe body is made of ceramic material and has good insulation, current leakage in the heating pipe can be effectively avoided, electrical short circuit between the battery liquid and the heating structure is prevented, and the pipe body made of titanium alloy has the characteristics of strong corrosion resistance, good high-temperature resistance and high mechanical strength, the service life and safety performance of the heating pipe assembly are greatly improved.

[0030] Specifically, as shown in the drawings, Figures 2-4As shown, the heating assembly 8 includes a metal pipe 81 arranged in the first pipe body 1 and the second pipe body 2, the metal pipe 81 is detachably mounted at the axial position of the first pipe body 1 and the second pipe body 2 through the mounting block 82, the inside of the metal pipe 81 is provided with an electric heating rod 83, and the outside of the metal pipe 81 is provided with a spiral heating fin 84.

[0031] Wherein, the spiral heating fin 84 is in communication with the metal pipe 81, when the battery liquid enters into the heating pipe under the action of the pump, the electric heating rod 83 starts to heat and transmits heat to the heating fin 84, in the process of the battery liquid contacting with the heating fin 84 to realize heating, the spiral heating fin 84 can contact with the battery liquid in a larger area, greatly increasing the contact perimeter and area with the battery liquid, so that the heat can be more fully transmitted to the battery liquid, improving the heating efficiency, the metal pipe 81 is detachably mounted in the pipe body through the mounting block 82, so as to facilitate the maintenance of the heating assembly 8, and the metal pipe 81 can have a space for the battery liquid to flow between the two ends of the pipe body through the mounting block 82, so that the metal pipe 81 does not cause the pipe body to be blocked, and ensures that the battery liquid can enter the first pipe body 1 and the second pipe body 2 to fully contact with the heating fin 84.

[0032] It should be noted that the heating fin 84 has a first connecting section 841 which is attached to the metal pipe 81, and a second connecting section 842 which is attached to the inner wall of the first pipe body 1 and the second pipe body 2, wherein the height of the first connecting section 841 is greater than the height of the second connecting section 842, the cross section of the spiral heating fin 84 is getting smaller and smaller from the metal pipe 81 to the outside, so that the cross section of the heating fin 84 presents a trapezoidal shape, the spiral heating fin 84 itself increases the contact area with the battery liquid in the pipe, and the trapezoidal design further increases the contact area of the heating fin 84 with the battery liquid, so that more battery liquid can be exchanged in the same space, thereby improving the efficiency of heat transfer, so that the battery liquid can absorb heat faster to realize rapid heating.

[0033] Specifically, as shown in Figure 2 and Figure 5 As shown, the liquid inlet pipe 6 is provided with a filter assembly 9 for filtering impurities remaining in the battery liquid, the filter assembly 9 includes a filter cartridge 93 arranged in the liquid inlet pipe 6 through a mounting seat 91, the filter cartridge 93 is connected with the first pipe body 1 through a liquid inlet channel 92, the bottom of the filter cartridge 93 is provided with a first filter screen 94, the side of the filter cartridge 93 is provided with a side flow port 95 which is connected with the internal channel of the filter cartridge 93, and the side flow port 95 is surrounded by a second filter screen 96.

[0034] Wherein, battery liquid in by liquid inlet pipe 6 into the first pipe body 1 heating, filter cartridge 93 by the first filter screen 94 can form the impurity of battery liquid in charging and discharging caused by electrode material dissolution filtering, side flow port 95 and the second filter screen 96 are set to increase the total area of filtration, when the battery liquid flow is larger, only by the first filter screen 94 can be caused by the insufficient filtering area and lead to local flow rate too fast, affect the filtering effect even cause blockage, side flow port 95 and the second filter screen 96 share the filtering task, so that the liquid can enter filter cartridge 93 from multiple directions, reduce the liquid flow pressure of each filter screen area, reduce the possibility of filter screen being blocked, guarantee the smooth flow of battery liquid.

[0035] It should be noted that the liquid inlet channel 92 includes filter segment 921 and acceleration segment 922 arranged in sequence along the flow direction of the battery liquid, the cross-sectional area of filter segment 921 is greater than that of acceleration segment 922. The battery liquid filtered by filter cartridge 93 enters the first pipe body 1 through the liquid inlet channel 92 on the mounting seat 91, and the design of filter segment 921 and acceleration segment 922 makes the battery liquid have an acceleration effect after flowing out of the liquid inlet channel 92, so that the flow of the battery liquid at the outlet of the filter assembly 9 is smoother, and the additional resistance caused by poor flow is reduced.

[0036] The above is only the preferred specific implementation of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art according to the technical scheme and the utility model concept of the present application within the technical range disclosed by the present application makes equivalent replacement or change, should be covered in the protection scope of the present application.

Claims

1. A segmented combined heating element assembly of titanium alloy and aluminum, characterized in that, The device includes a first tube (1) and a second tube (2) arranged in parallel. The first tube (1) and the second tube (2) are connected by a connecting pipe (5). The bottom of the first tube (1) is provided with an inlet pipe (6) connected to it, and the bottom of the second tube (2) is provided with a drain pipe (7) connected to it. Both the first tube (1) and the second tube (2) are provided with heating components (8) that can efficiently and uniformly heat the flowing battery liquid. The inlet pipe (6) is provided with a filter component (9) for filtering residual impurities in the battery liquid.

2. The titanium alloy-aluminum hybrid segmented combined heating tube assembly according to claim 1, characterized in that, The heating assembly (8) includes a metal tube (81) that is detachably installed on the axis of the first tube (1) and the second tube (2) via a mounting block (82). The metal tube (81) is provided with an electric heating rod (83) inside and a spiral heating plate (84) is provided on the outside of the metal tube (81).

3. The titanium alloy-aluminum hybrid segmented combined heating tube assembly according to claim 2, characterized in that, The heating element (84) has a first connecting section (841) that fits into the metal tube (81) and a second connecting section (842) that fits into the inner wall of the first tube body (1) and the second tube body (2), wherein the height of the first connecting section (841) is greater than the height of the second connecting section (842).

4. A titanium alloy-aluminum hybrid segmented combined heating tube assembly according to claim 2 or 3, characterized in that, The filter assembly (9) includes a filter cylinder (93) disposed in the liquid inlet pipe (6) via a mounting base (91). The filter cylinder (93) is connected to the first tube body (1) via a liquid inlet channel (92). A first filter screen (94) is disposed at the bottom of the filter cylinder (93).

5. The titanium alloy-aluminum hybrid segmented combined heating tube assembly according to claim 4, characterized in that, The filter cylinder (93) has a side outlet (95) connected to its internal channel, and a second filter screen (96) is surrounded on the side outlet (95).

6. The titanium alloy-aluminum hybrid segmented combined heating tube assembly according to claim 5, characterized in that, The liquid inlet channel (92) includes a filtration section (921) and an acceleration section (922) arranged sequentially along the flow direction of the battery liquid. The cross-sectional area of ​​the filtration section (921) is larger than that of the acceleration section (922).

7. The titanium alloy-aluminum hybrid segmented combined heating tube assembly according to claim 1, characterized in that, The two ends of the connecting pipe (5) are detachably connected to the first pipe body (1) and the second pipe body (2) respectively through the upper end cap (3); The inlet pipe (6) and outlet pipe (7) are detachably connected to the first pipe body (1) and the second pipe body (2) respectively through the lower end cap (4).

8. The titanium alloy-aluminum hybrid segmented combined heating tube assembly according to claim 7, characterized in that, The upper end cap (3) and the lower end cap (4) are both made of aluminum, and the first tube body (1) and the second tube body (2) are both made of titanium alloy.

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