Water-cooling pipeline quick-insertion connecting structure

Abstract

The invention discloses a water-cooling pipeline quick-insertion connecting structure which comprises a pair of insertion pipes which are connected in an inserted mode, plugs are installed in the two insertion pipes in a radial sliding mode, and one ends, behind the plugs, of the insertion pipes are sealed through supporting seats. A spring used for pushing the pressing portion of the plug to be attached to the inner wall of the insertion pipe to seal the end opening of the insertion pipe is arranged between the supporting base and the plug. When the insertion pipes are inserted oppositely, the plugs of the two insertion pipes are pressed against each other and slide, the springs are compressed, and the pressing parts of the plugs are separated from the inner walls of the insertion pipes. According to the connecting structure, the operation step of connecting the battery pack into the whole vehicle water cooling pipeline is simplified, connection and disconnection between the battery pack water cooling plate and the vehicle body water cooling equipment can be completed through direct plugging and unplugging, then the battery pack disassembling and assembling process is simplified, the battery pack assembling and assembling efficiency is improved, the integration degree is high, and maintenance operation of workers is facilitated.

Description

Technical Field

[0001] This invention belongs to the field of battery pack connection structure technology, specifically relating to a quick-connect structure for water-cooled pipelines. Background Technology

[0002] Electric vehicles represent the future of new energy vehicles, using battery packs to store electrical energy as the power source for driving the car. To ensure a certain total capacity and output voltage, electric vehicles require a certain number of battery packs, which are connected by copper busbars to form battery modules. To improve the safety of the battery pack, the battery packs are housed within a casing. The charging and discharging of the battery pack generates heat, leading to temperature increases. Excessive temperature can adversely affect battery performance and lifespan, and may even cause thermal runaway, endangering personal safety. Therefore, it is essential to cool the battery pack during use. Furthermore, in areas with low temperatures, the charging efficiency of the battery pack is lower at lower temperatures, necessitating preheating to ensure better charging efficiency and achieve rapid charging. Therefore, temperature control devices need to be added to facilities such as battery compartments and battery swapping cabinets where battery packs are housed and charging / discharging occurs.

[0003] In traditional solutions, a single water-cooled plate is laid inside the vehicle frame and contacts the battery pack inserted into the battery compartment to achieve heat exchange. However, due to assembly process issues, the water-cooled plate may not fit the battery pack properly in some locations, thus affecting the heat exchange effect. While equipping each battery pack with a separate water-cooled plate can ensure heat exchange, the installation and removal of water-cooled connectors are relatively difficult, increasing the workload for operators during the disassembly and replacement of multiple battery packs and significantly limiting the progress of battery pack maintenance and replacement. Summary of the Invention

[0004] The purpose of this invention is to provide a quick-connect structure for water-cooled pipelines for use, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a quick-connect structure for water-cooled pipes, comprising plugs that can be plugged into each other, with plugs radially slidably installed inside both plugs, and one end of the plug behind the plug being closed by a support seat, and a spring is provided between the support seat and the plug for pushing the mortise portion of the plug to fit against the inner wall of the plug and sealing the plug port;

[0006] When the cannulas are inserted into each other, the plugs of the two cannulas slide against each other, compressing the spring, and the plug part separates from the inner wall of the cannulas.

[0007] Preferably, the cannula includes a thin tube segment at the insertion end and a thick tube segment connected to the rear end of the thin tube segment;

[0008] The spring pushes the plug to fit against the inner wall of the connecting section between the thin and thick pipe sections, sealing the insertion tube.

[0009] Preferably, one end of the plug is a drainage section and is slidably disposed within the thin tube section. The drainage section is provided with a guide hole A opposite to the insertion port and a guide hole B disposed on the circumferential surface of the plug.

[0010] The drainage section has two positional states within the cannula:

[0011] One is that when the spring is compressed, the flow-draining section slides along the thin tube section to the thick tube section. At this time, the flow-draining section's guide hole B is connected to the thick tube section, and the two tubes are in a conductive state.

[0012] Secondly, the spring returns to its original position, and the flow-reducing section slides from the coarse tube section to the thin tube section. At this time, the flow-reducing section's guide hole B is sealed by the inner wall of the thin tube section, and the inter-tubes are in a closed state.

[0013] Preferably, the inner wall of the connecting section between the thick and thin pipe sections is set as an annular arc surface, and a sealing ring is correspondingly provided on the outer ring of the plug;

[0014] When the spring pushes the plug to reset, the frustum-shaped sealing ring fits into the annular arc surface of the connecting section.

[0015] Preferably, the tube is connected to the water-cooling equipment through a pipe fitting installed on the circumferential surface.

[0016] The technical effects and advantages of this invention: This quick-connect structure for water-cooled pipes...

[0017] 1. The connection and disconnection between the battery pack water cooling plate and the vehicle body water cooling equipment can be completed by direct plugging and unplugging, simplifying the battery pack disassembly and assembly process, speeding up battery pack assembly efficiency, and with a high degree of integration, it is convenient for maintenance operations by staff.

[0018] 2. The plug structure is optimized. The flow guide holes in the flow diversion section guide the refrigerant, ensuring that the water flow remains uniform and smooth, resulting in more uniform and efficient heat exchange. In addition, the design of the sealing ring and the annular arc surface of the connecting section can avoid the long-term friction between the sealing ring and the inner wall of the tube, which can cause wear and tear, resulting in seal damage and seal failure. It also prevents the plug from sliding unsmoothly in the tube, thus affecting the opening and closing of the refrigerant flow channel. Attached Figure Description

[0019] Figure 1 This is an exploded view of the present invention;

[0020] Figure 2 This is a schematic diagram of the plug structure in this invention;

[0021] Figure 3 The position of the drainage section inside the cannula. Figure 1 ;

[0022] Figure 4 The position of the drainage section inside the cannula. Figure 2 .

[0023] In the diagram: 1. Insertion cannula; 110. Thin tube segment; 120. Thick tube segment;

[0024] 2. Plug; 210. Drainage section; 220. Guide hole A; 230. Guide hole B;

[0025] 3. Pipe fitting; 4. Support base; 5. Spring; 6. Connecting section; 7. Sealing ring. Detailed Implementation

[0026] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] In the description of this invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0028] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" 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 an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0029] This invention provides, for example Figure 1-2 The quick-connect structure of a water-cooled pipeline shown includes a tube 1, a plug 2 is radially slidably installed inside the tube 1, one end of the tube 1 behind the plug 2 is closed by a support 4, and a spring 5 is arranged between the support 4 and the plug 2 to push the mortise part of the plug 2 to fit against the inner wall of the tube 1 and close the port of the tube 1.

[0030] When the two tubes 1 are inserted together, the plugs 2 of the two tubes 1 slide against each other, compressing the spring 5, and the pressing part of the plug 2 separates from the inner wall of the tube 1. When the two tubes 1 are not connected, the pressing part of the plug 2 fits tightly against the inner wall of the tube 1, thereby blocking the flow channel of the tube 1 and achieving the closing effect of the tube 1. When it is necessary to connect the battery pack water-cooling plate to the vehicle water-cooling pipeline, the two tubes 1 are inserted together. At this time, the two plugs 2 press against each other and push the spring 5 at the rear end to compress, while sliding deeper into the tube 1. At this time, the pressing part of the plug 2 separates from the inner wall of the tube 1, the passage of the tube 1 is opened, and the refrigerant can enter the water-cooling plate for circulation through the tube 1. Through this connection structure, the connection and disconnection between the battery pack water-cooling plate and the vehicle water-cooling equipment can be completed by direct plugging and unplugging, simplifying the battery pack disassembly and assembly process, speeding up the battery pack assembly efficiency, and having a high degree of integration, which facilitates maintenance operations for staff.

[0031] The insertion tube 1 includes a thin tube section 110 at the insertion end and a thick tube section 120 connected to the rear end of the thin tube section 110. A spring 5 pushes a plug 2 to fit against the inner wall of the connecting section 6 between the thin tube section 110 and the thick tube section 120, sealing the insertion tube 1. Pressure output by the spring 5 pushes the sealing part of the plug 2 to fit tightly against the connecting section 6, achieving the sealing of the flow channel inside the insertion tube 1. This sealing position is relatively far from the port of the insertion tube 1, ensuring a sealing effect and preventing refrigerant leakage during insertion and removal.

[0032] One end of the plug 2 is a drainage section 210, which is slidably disposed in the thin tube section 110. The drainage section 210 is provided with a guide hole A220 opposite to the port of the insertion tube 1 and a guide hole B230 disposed on the circumferential surface of the plug 2.

[0033] like Figure 3-4 As shown, the flow diversion section 210 has two positional states within the insertion tube 1: First, with the spring 5 compressed, the flow diversion section 210 slides along the thin tube section 110 towards the thick tube section 120. In this state, the guide hole B230 of the flow diversion section 210 is connected to the thick tube section 120, and the insertion tubes 1 are in a conductive state. Second, with the spring 5 reset, the flow diversion section 210 slides from the thick tube section 120 towards the thin tube section 110. In this state, the guide hole B230 of the flow diversion section 210 is sealed by the inner wall of the thin tube section 110, and the insertion tubes 1 are in a closed state. This design ensures smooth water cooling flow after the insertion tubes 1 are connected. The refrigerant can flow sequentially through the guide holes A220 and B230 of the two insertion tubes 1, completing the circulation of the refrigerant. The flow diversion section 210 guides the refrigerant, ensuring uniform and smooth flow, resulting in more uniform and efficient heat exchange.

[0034] The inner wall of the connecting section 6 between the thick pipe section 120 and the thin pipe section 110 is designed as an annular arc surface, and a sealing ring 7 is correspondingly provided on the outer ring of the plug 2. When the spring 5 pushes the plug 2 to reset, the frustum-shaped sealing ring 7 fits into the annular arc surface of the connecting section 6. This structural design avoids long-term friction between the sealing ring 7 and the inner wall of the insertion tube 1, which could cause wear and damage to the seal. It also prevents the plug 2 from sliding unsmoothly inside the insertion tube 1, thus avoiding affecting the opening and closing of the refrigeration flow channel.

[0035] The insertion tube 1 is connected to the water cooling equipment through the pipe connector 3 installed on the circumferential surface. On the one hand, setting the pipe connector 3 on the circumferential surface of the insertion tube 1 can effectively save installation space and facilitate the installation of pipelines inside the battery pack and on the vehicle body;

[0036] On the other hand, this structure ensures that the flow channel of the insertion tube 1 is perpendicular to the flow channel of the pipe joint 3, so that the circulating refrigerant will be buffered by the tortuous flow channel when entering and exiting the insertion tube 1, thereby reducing the impact of the refrigerant, reducing the flow rate, and enhancing the heat exchange effect.

[0037] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A quick-connect structure for water-cooled pipelines, characterized in that: Includes a cannula (1), a plug (2) is radially slidably installed inside the cannula (1), one end of the cannula (1) behind the plug (2) is closed by a support seat (4), and a collateral part for pushing the plug (2) is arranged between the support seat (4) and the plug (2) to fit against the inner wall of the cannula (1); When the cannulas (1) are inserted into each other, the plugs (2) of the two cannulas (1) slide against each other, compressing the spring (5), and the plug part of the plug (2) separates from the inner wall of the cannulas (1).

2. The quick-connect structure for water-cooled pipelines according to claim 1, characterized in that: The cannula (1) includes a thin tube segment (110) at the insertion end and a thick tube segment (120) connected to the rear end of the thin tube segment (110); The spring (5) pushes the plug (2) to fit against the inner wall of the connecting section of the thin tube section (110) and the thick tube section (120), thus sealing the insertion tube (1).

3. The quick-connect structure for water-cooled pipelines according to claim 2, characterized in that: One end of the plug (2) is a drainage section (210) and is slidably disposed in the thin tube section (110). The drainage section (210) is provided with a guide hole A (220) opposite to the port of the insertion tube (1) and a guide hole B (230) disposed on the circumferential surface of the plug (2). The drainage section (210) has two positional states within the insertion tube (1): One is that when the spring (5) is compressed, the drainage section (210) slides along the thin tube section (110) to the thick tube section (120). At this time, the guide hole B (230) of the drainage section (210) is connected to the thick tube section (120), and the insertion tube (1) is in a conductive state. Secondly, when the spring (5) is reset, the drainage section (210) slides from the coarse tube section (120) to the thin tube section (110). At this time, the guide hole B (230) of the drainage section (210) is sealed by the inner wall of the thin tube section (110), and the insertion tube (1) is in a closed state.

4. The quick-connect structure for water-cooled pipelines according to claim 2, characterized in that: The inner wall of the connecting section (6) between the thick pipe section (120) and the thin pipe section (110) is set as an annular arc surface, and the outer ring of the plug (2) is correspondingly provided with a sealing ring (7); When the spring (5) pushes the plug (2) to reset, the frustum-shaped sealing ring (7) fits into the annular arc surface of the connecting section (6).

5. The quick-connect structure for water-cooled pipelines according to claim 1, characterized in that: The insertion tube (1) is connected to the water cooling equipment through the pipe joint (3) installed on the circumferential surface.

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