Quick-plug type water cooling connector for new energy automobile power battery cooling system

Abstract

The utility model relates to the technical field of mechanical connection joints, in particular to a quick-insertion type water-cooling joint for a power battery cooling system of a new energy automobile. Comprising a plug pipe, a spigot-and-socket pipe and a stop ring, the plug pipe is inserted into one end of the spigot-and-socket pipe, the side, close to the plug pipe, of the spigot-and-socket pipe is provided with containing grooves which are evenly spaced in the circumferential direction, clamping beads are arranged in the grooves, the plug pipe is correspondingly provided with a circumferential notch, and when the plug pipe and the spigot-and-socket pipe abut against each other, the clamping beads are embedded into the notch to achieve radial locking; the stop ring is in threaded connection with the spigot-and-socket pipe and abuts against the sleeve to stabilize the structure during abutting, the sealing assembly in the spigot-and-socket pipe can prevent leakage of cooling liquid, the connection stability and reliability of the connector of the cooling system are effectively improved, and normal operation of the cooling system is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to mechanical connection joint technical field especially is related to a kind of quick-inserted water cooling connector for new energy automobile power battery cooling system. BACKGROUND

[0002] With the rapid development of new energy vehicles, power battery as one of its core components, its performance and safety directly affect the running efficiency of whole vehicle and user experience, power battery generates a lot of heat in the working process, if not promptly and effectively cooled, will lead to battery temperature too high, and then affect battery life even cause security risks, water cooling system because of its high efficient heat dissipation performance, become one of the mainstream solutions of new energy automobile power battery cooling, in water cooling system, water cooling connector as the key component of connecting cooling pipeline, its performance directly affects the working effect of entire cooling system.

[0003] At present, in new energy automobile power battery cooling system, common plug-in connection, usually set protrusion in one end of connector, the other end sets corresponding recess, connect by direct plug-in mode, limit the relative movement of connector using the cooperation of protrusion and recess, however, plug-in connection although relatively simple operation, but the stability of connection is poor, in the process of vehicle driving, due to the action of jolt, vibration and other external force, connector is prone to falling off phenomenon, cannot guarantee the reliable operation of cooling system, therefore, an urgent need arises for a kind of quick-inserted water cooling connector for new energy automobile power battery cooling system to solve the above problems. UTILITY MODEL CONTENTS

[0004] In order to overcome the above-mentioned prior art deficiencies, the utility model provides a kind of quick-inserted water cooling connector for new energy automobile power battery cooling system, solve the technical problem that connector is prone to falling off in the process of vehicle driving, leading to the unreliable operation of cooling system.

[0005] In order to achieve the above-mentioned purpose, the utility model is by the following technical scheme to realize:

[0006] The utility model provides a kind of quick plug type water cooling connector for new energy automobile power battery cooling system, including: plug pipe, socket pipe, stop ring, the plug pipe is inserted and installed in one end of socket pipe, the socket pipe is equipped with a group of accommodating grooves on the side close to plug pipe, a group of the accommodating grooves are evenly spaced along the circumference of socket pipe, each accommodating groove is provided with ball, the outer side wall of the side close to socket pipe of plug pipe is equipped with the lack of part adapted to ball, the lack of part is arranged along the circumference of plug pipe, when the plug pipe and socket pipe axially abut, ball extends to the lack of part in the radial direction of socket pipe, to achieve the radial locking of plug pipe and socket pipe, floating sleeve is provided with sleeve on the outside of socket pipe, the sleeve is used to adjust the position of ball, the stop ring is sleeved on the outside of socket pipe, the stop ring is connected with socket pipe by screw thread, when the plug pipe and socket pipe axially abut, the stop ring and sleeve axially abut, sealing assembly is provided in socket pipe, and the sealing assembly is used to prevent leakage of cooling liquid.

[0007] Based on the above structure, the principle of the quick plug type water cooling connector for new energy automobile power battery cooling system is as follows: when docking is needed, first, adjust the position of the sleeve floatingly arranged on the outside of the socket pipe relative to the socket pipe, so that the ball can move freely in the radial direction of the socket pipe in the accommodating groove; then, align the end of the socket pipe provided with the accommodating groove with the plug pipe, and slowly insert the plug pipe; as the plug pipe is inserted deeper, when the plug pipe and the socket pipe axially abut, the lack of part on the plug pipe corresponds to the ball at this time; then, restore the position of the sleeve so that the ball returns to the preset position, and at this time, the ball extends to the lack of part in the radial direction of the socket pipe, so that the plug pipe and the socket pipe are radially locked and integrated; finally, screw the stop ring so that the stop ring axially abuts on the sleeve, completing the connection of the plug pipe and the socket pipe. The ball and the lack of part cooperate, when the plug pipe and the socket pipe axially abut, the ball extends to the lack of part in the radial direction of the socket pipe, limiting the radial relative movement between the plug pipe and the socket pipe; the stop ring limits the axial movement of the sleeve by abutting on the sleeve, further stabilizing the radial locking structure, on the other hand, the axial positions of the plug pipe and the socket pipe are positioned and fixed as a whole, ensuring that the overall structure after connection remains stable in the axial direction; the sealing assembly is used to prevent leakage of cooling liquid, avoiding functional failure caused by leakage of cooling liquid.

[0008] Further, the quick plug type water cooling connector for the power battery cooling system of the new energy vehicle in the application has the following advantages: the depth of the accommodating groove is greater than the radius of the clamping bead and less than the diameter of the clamping bead. As a preferred solution of the application, the depth of the accommodating groove of the quick plug type water cooling connector for the power battery cooling system of the new energy vehicle in the application is greater than the radius of the clamping bead, so that the clamping bead can move radially in the accommodating groove with sufficient space, and the clamping bead can move smoothly inwards or outwards in the accommodating groove along with the adjustment of the sleeve during the process of inserting the plug pipe into the socket pipe, and the clamping bead is not limited due to the too shallow accommodating groove, so that the plug pipe can be inserted smoothly; the depth of the accommodating groove is less than the diameter of the clamping bead, so that the clamping bead can be prevented from moving excessively in the axial direction in the accommodating groove, and the clamping bead can be prevented from deviating from the position corresponding to the defect during the process of inserting the plug pipe, so as to ensure the reliability of the radial locking function.

[0009] Further, the quick plug type water cooling connector for the power battery cooling system of the new energy vehicle in the application has the following advantages: the inner side wall of the sleeve is provided with a convex part, and the convex part is arranged in the circumferential direction of the sleeve. When the sleeve moves axially, the convex part pushes the clamping bead to move in the radial direction of the socket pipe. As a preferred solution of the application, the quick plug type water cooling connector for the power battery cooling system of the new energy vehicle in the application can reliably push the clamping bead to move in the radial direction of the socket pipe when the sleeve moves axially, so as to effectively control the position of the clamping bead during the connection or separation of the plug pipe and the socket pipe.

[0010] Further, the quick plug type water cooling connector for the power battery cooling system of the new energy vehicle in the application has the following advantages: the outer side wall of the socket pipe is provided with an extension part, the extension part is arranged in the radial direction of the socket pipe, and the outer side wall of the socket pipe is provided with an elastic member, and the two ends of the elastic member respectively abut against the extension part and the convex part in the axial direction of the socket pipe. As a preferred solution of the application, when the sleeve moves axially away from the plug pipe, the elastic member stores elastic potential energy, and after the connection of the plug pipe and the socket pipe is completed, the elastic member can release the elastic potential energy to provide a reverse elastic force for the sleeve, push the sleeve to move axially to reset, so as to ensure the stability of the relative position between the convex part and the clamping bead and avoid abrasion.

[0011] Further, the quick plug type water cooling connector for the power battery cooling system of the new energy vehicle in the application has the following advantages: the outer side wall of the socket pipe is provided with a limiting part, the limiting part is arranged in the radial direction of the socket pipe, and the convex part is located between the limiting part and the extension part. As a preferred solution of the application, the limiting part is used to prevent the sleeve from being accidentally detached from the socket pipe, so as to avoid that the whole structure is gradually detached from the socket pipe under the influence of external forces such as vibration and impact, and causes the connection structure to fail.

[0012] Further, the quick plug type water cooling connector for the power battery cooling system of the new energy vehicle in the application, the inner side wall of the socket pipe is provided with a stop portion, the stop portion is arranged along the radial direction of the socket pipe, and the end portion of the plug pipe abuts against the stop portion when the plug pipe and the socket pipe are connected.

[0013] Further, the quick plug type water cooling connector for the power battery cooling system of the new energy vehicle in the application, the sealing assembly comprises a first annular sealing ring and a second annular sealing ring, the inner side wall of the socket pipe is provided with an annular receiving cavity, the annular receiving cavity is used for accommodating the first annular sealing ring, and the stop portion is provided with an annular groove corresponding to the second annular sealing ring on the side close to the plug pipe, and the annular groove is used for accommodating the second annular sealing ring.

[0014] Further, the quick plug type water cooling connector for the power battery cooling system of the new energy vehicle in the application, the stop ring and the threaded connection position of the socket pipe are covered with a gel layer, and the gel layer is arranged along the circumference of the socket pipe.

[0015] The above technical scheme can have the following beneficial effects:

[0016] The utility model discloses a quick plug type water cooling connector for new energy automobile power battery cooling system, through setting up accommodating groove and card pearl on the socket pipe, setting up the lack on the plug pipe, utilize card pearl and lack cooperation to realize radial locking, set up sleeve pipe adjustment card pearl position simultaneously, and the stable connection structure of stop ring and sleeve pipe resistance, and set up sealing assembly in socket pipe prevents cooling liquid leakage to this improves the stability and reliability of new energy automobile power battery cooling system connector connection, guarantees cooling system normal operation. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is three-dimensional structure schematic diagram for quick plug type water cooling connector for new energy automobile power battery cooling system in the embodiment of the application;

[0018] Figure 2 It is sectional view for quick plug type water cooling connector for new energy automobile power battery cooling system in the embodiment of the application;

[0019] Figure 3 It is three-dimensional structure schematic diagram for plug pipe in quick plug type water cooling connector for new energy automobile power battery cooling system in the embodiment of the application;

[0020] Figure 4 It is three-dimensional structure schematic diagram for socket pipe in quick plug type water cooling connector for new energy automobile power battery cooling system in the embodiment of the application.

[0021] In the drawing: 1-plug pipe;10-lack;2-socket pipe;20-accommodate groove;21-extend;22-block;220-ring groove;23-ring receiving cavity;3-card pearl;4-sleeve pipe;41-convex part;5-stop ring;6-sealing assembly;61-first annular sealing ring;62-second annular sealing ring;7-elastic piece;8-limiting part;9-gel layer. DETAILED DESCRIPTION

[0022] As Figure 1 , 2The utility model provides a kind of quick plug type water cooling connector for new energy automobile power battery cooling system shown in 1,3,4, including: plug pipe 1, socket pipe 2, stop ring 5, the plug pipe 1 is inserted and installed in one end of socket pipe 2, socket pipe 2 is equipped with a group of accommodating groove 20 on the side near plug pipe 1, a group of the accommodating groove 20 is evenly spaced along the circumferential direction of socket pipe 2, each accommodating groove 20 is provided with ball 3, the outer side wall of the side near socket pipe 2 of plug pipe 1 is equipped with the lack of part 10 corresponding with ball 3, the lack of part 10 is set along the circumferential direction of plug pipe 1, when plug pipe 1 and socket pipe 2 axially abut, ball 3 extends to the lack of part 10 in the radial direction of socket pipe 2, to achieve the radial locking of plug pipe 1 and socket pipe 2, the floating sleeve of the outer side of socket pipe 2 is provided with sleeve 4, and the sleeve 4 is used to adjust the position of ball 3, the stop ring 5 is sleeved on the outer side of socket pipe 2, and the stop ring 5 is connected with socket pipe 2 by screw thread, when plug pipe 1 and socket pipe 2 axially abut, the stop ring 5 and sleeve 4 axially abut, socket pipe 2 is provided with sealing assembly 6, and the sealing assembly 6 is used to prevent cooling liquid leakage.

[0023] Based on the above structure, the principle of the quick plug type water cooling connector for new energy automobile power battery cooling system is as follows: when the connection is needed, first, the position of sleeve 4 floatingly arranged on the outer side of socket pipe 2 relative to socket pipe 2 is adjusted, so that ball 3 can move freely in the radial direction of socket pipe 2 in accommodating groove 20; then, plug pipe 1 is aligned with one end of socket pipe 2 provided with accommodating groove 20, and is slowly inserted, as plug pipe 1 is inserted deeper, when plug pipe 1 and socket pipe 2 axially abut, the lack of part 10 on plug pipe 1 corresponds to ball 3 at this time; then, the position of sleeve 4 is restored, so that ball 3 returns to the preset position, at this time, ball 3 extends to the lack of part 10 in the radial direction of socket pipe 2, so that plug pipe 1 and socket pipe 2 are radially locked and integrated; finally, the stop ring 5 is screwed, so that the stop ring 5 axially abuts on sleeve 4, to complete the connection of plug pipe 1 and socket pipe 2. Ball 3 and the lack of part 10 cooperate, when plug pipe 1 and socket pipe 2 axially abut, ball 3 extends to the lack of part 10 in the radial direction of socket pipe 2, which limits the radial relative movement between plug pipe 1 and socket pipe 2; the stop ring 5 limits the axial movement of sleeve 4 by abutting with sleeve 4, further stabilizes the radial locking structure, on the other hand, the axial positions of plug pipe 1 and socket pipe 2 are positioned and fixed as a whole, to ensure that the overall structure after connection remains stable in the axial direction; the sealing assembly 6 is used to prevent cooling liquid leakage, to avoid functional failure caused by cooling liquid leakage. The number of a group of accommodating grooves 20 is 10, and the number of ball 3 is also 10 correspondingly.

[0024] In the embodiment, the depth of the accommodating groove 20 is greater than the radius of the clamping bead 3 and less than the diameter of the clamping bead 3. The depth of the accommodating groove 20 being greater than the radius of the clamping bead 3 ensures that the clamping bead 3 has enough space to move radially in the accommodating groove 20, and the clamping bead 3 can move smoothly inwards or outwards in the accommodating groove 20 along with the adjustment of the sleeve 4 during the insertion of the plug pipe 1 into the socket pipe 2, and the clamping bead 3 is not limited by the too shallow accommodating groove 20, thereby ensuring that the plug pipe 1 can be inserted smoothly. The depth of the accommodating groove 20 being less than the diameter of the clamping bead 3 can prevent the clamping bead 3 from moving excessively axially in the accommodating groove 20, and ensure that the clamping bead 3 does not deviate from the position corresponding to the defect 10 due to axial movement during the insertion of the plug pipe 1, thereby ensuring the reliability of the radial locking function.

[0025] In the embodiment, the inner side wall of the sleeve 4 is provided with a protrusion 41, which is arranged circumferentially along the sleeve 4. When the sleeve 4 moves axially, the protrusion 41 pushes the clamping bead 3 to move radially in the socket pipe 2. When the sleeve 4 moves axially, the protrusion 41 can reliably push the clamping bead 3 to move radially in the socket pipe 2, thereby effectively controlling the position of the clamping bead 3 during the connection or separation of the plug pipe 1 and the socket pipe 2.

[0026] In the embodiment, the outer side wall of the socket pipe 2 is provided with an extension 21, which is arranged to extend radially along the socket pipe 2. An elastic member 7 is sleeved on the outer side wall of the socket pipe 2, and the two ends of the elastic member 7 respectively abut against the extension 21 and the protrusion 41 in the axial direction of the socket pipe 2. When the sleeve 4 moves axially away from the plug pipe 1, the elastic member 7 stores elastic potential energy. After the connection of the plug pipe 1 and the socket pipe 2 is completed, the elastic member 7 can release the elastic potential energy to provide a reverse elastic force to the sleeve 4, thereby pushing the sleeve 4 to move axially to reset, so as to ensure the stability of the relative position between the protrusion 41 and the clamping bead 3 and avoid abrasion. The elastic member 7 is a spring.

[0027] In the embodiment, the outer side wall of the socket pipe 2 is provided with a limiting portion 8, which is arranged to extend radially along the socket pipe 2. The protrusion 41 is located between the limiting portion 8 and the extension 21. The limiting portion 8 is used to prevent the sleeve 4 from being accidentally detached from the socket pipe 2, thereby avoiding that the overall structure gradually separates from the socket pipe 2 due to vibration, impact and other external forces, resulting in failure of the connection structure. The limiting portion 8 is an elastic ring, and the outer side wall of the socket pipe 2 is provided with a groove portion corresponding to the elastic ring, and the elastic ring is clamped in the groove portion.

[0028] In the embodiment, the inner side wall of the socket pipe 2 is provided with a stop portion 22 extending radially along the socket pipe 2, and the end of the plug pipe 1 abuts against the stop portion 22 when the plug pipe 1 and the socket pipe 2 are connected. The stop portion 22 provides a clear axial positioning reference for the insertion of the plug pipe 1, effectively prevents the plug pipe 1 from being excessively inserted into the socket pipe 2, and avoids damage to the internal structure of the socket pipe 2 or the plug pipe 1 itself. When the plug pipe 1 is inserted into the socket pipe 2, the end abuts against the stop portion 22, indicating that the plug pipe 1 has reached the preset insertion position, ensuring that the insertion depth of the plug pipe 1 is consistent each time the connection is made, and guaranteeing the accuracy and stability of the connection.

[0029] In the embodiment, the sealing assembly 6 comprises a first annular sealing ring 61 and a second annular sealing ring 62. The inner side wall of the socket pipe 2 is provided with an annular receiving cavity 23 for accommodating the first annular sealing ring 61. The stop portion 22 is provided with an annular groove 220 corresponding to the second annular sealing ring 62 on the side close to the plug pipe 1, and the annular groove 220 is used to accommodate the second annular sealing ring 62. The first annular sealing ring 61 and the second annular sealing ring 62 form a double sealing structure. The first annular sealing ring 61 is located in the annular receiving cavity 23 of the inner side wall of the socket pipe 2 and performs primary sealing on the gap between the plug pipe 1 and the socket pipe 2. The second annular sealing ring 62 is arranged in the annular groove 220 on the side of the stop portion 22 close to the plug pipe 1 and further seals the connection part of the plug pipe 1 and the socket pipe 2. The double sealing design improves the reliability of sealing and reduces the risk of coolant leakage. Both the first annular sealing ring 61 and the second annular sealing ring 62 are O-shaped sealing rings.

[0030] In the embodiment, the thread connection position of the stop ring 5 and the socket pipe 2 is covered with a gel layer 9 arranged circumferentially along the socket pipe 2. After the gel layer 9 is applied to the thread connection position, the friction between the stop ring 5 and the socket pipe 2 is increased. When the entire structure is subjected to external forces such as vibration and impact, the stop ring 5 can be prevented from rotating relative to the socket pipe 2, the thread connection can be prevented from loosening, and the stability and reliability of the connection between the plug pipe 1 and the socket pipe 2 can be ensured. The gel layer 9 is a thread fastening agent.

[0031] The technical principles of the utility model are described in combination with specific embodiments above, and these descriptions are only for explaining the principles of the utility model and cannot be interpreted in any way as a limitation on the protection scope of the utility model. Based on the explanations herein, other specific embodiments of the utility model can be conceived by those skilled in the art without creative labor, and these embodiments will all fall within the protection scope of the utility model.

Claims

1. A quick plug-in water cooling connector for a new energy vehicle power battery cooling system, characterized in that: The utility model relates to a kind of pipe connector, including: Plug pipe (1), socket pipe (2), stop ring (5), the plug pipe (1) is inserted and installed in one end of socket pipe (2), a group of accommodating grooves (20) are equipped on the side of plug pipe (1) near socket pipe (2), a group of the accommodating grooves (20) are evenly spaced along the circumference of socket pipe (2), and each accommodating groove (20) is provided with ball (3) in, the outer side wall of the side of plug pipe (1) near socket pipe (2) is equipped with the lack of part (10) corresponding with ball (3), the lack of part (10) is set along the circumference of plug pipe (1), when the plug pipe (1) and socket pipe (2) axially abut, ball (3) extends to the lack of part (10) in radial direction of socket pipe (2), to realize the radial locking of plug pipe (1) and socket pipe (2), socket pipe (2) is floatingly sleeved with sleeve (4), and the sleeve (4) is used for adjusting the position of ball (3), the stop ring (5) is sleeved on the outside of socket pipe (2), and the stop ring (5) is threadedly connected with socket pipe (2), when the plug pipe (1) and socket pipe (2) axially abut, the stop ring (5) and sleeve (4) axially abut, socket pipe (2) is equipped with sealing assembly (6), and the sealing assembly (6) is used to prevent cooling liquid leakage.

2. The quick plug-in water cooling connector for a new energy vehicle power battery cooling system according to claim 1, characterized in that: The depth of the accommodating groove (20) is greater than the radius of the ball (3) and less than the diameter of the ball (3).

3. The quick plug-in water cooling connector for a new energy vehicle power battery cooling system according to claim 2, characterized in that: The inner side wall of the sleeve (4) is provided with a convex portion (41), which is arranged along the circumference of the sleeve (4). When the sleeve (4) moves axially, the convex portion (41) pushes the ball (3) to move in the radial direction of the socket pipe (2).

4. The quick plug-in water cooling connector for a new energy vehicle power battery cooling system according to claim 3, characterized in that: The outer side wall of the socket pipe (2) is provided with an extension portion (21), which is arranged in the radial direction of the socket pipe (2). The outer side wall of the socket pipe (2) is sleeved with an elastic member (7), and the two ends of the elastic member (7) respectively abut the extension portion (21) and the convex portion (41) in the axial direction of the socket pipe (2).

5. The quick plug-in water cooling connector for a new energy vehicle power battery cooling system according to claim 4, characterized in that: The outer side wall of the socket pipe (2) is provided with a limiting portion (8), which is arranged in the radial direction of the socket pipe (2). The convex portion (41) is located between the limiting portion (8) and the extension portion (21).

6. The quick plug-in water cooling connector for a new energy vehicle power battery cooling system according to claim 5, characterized in that: The inner side wall of the socket pipe (2) is provided with a blocking portion (22), which is arranged in the radial direction of the socket pipe (2). When the plug pipe (1) and the socket pipe (2) are connected, the end portion of the plug pipe (1) abuts on the blocking portion (22).

7. The quick plug-in water cooling connector for a new energy vehicle power battery cooling system according to claim 6, characterized in that: The sealing assembly (6) includes a first annular sealing ring (61) and a second annular sealing ring (62). The inner side wall of the socket pipe (2) is provided with an annular receiving cavity (23) for accommodating the first annular sealing ring (61). The side of the blocking portion (22) near the plug pipe (1) is provided with an annular groove (220) corresponding to the second annular sealing ring (62), and the annular groove (220) is used to accommodate the second annular sealing ring (62).

8. The quick plug-in water cooling connector for a new energy vehicle power battery cooling system according to claim 7, characterized in that: The stop ring (5) is covered with a cementing layer (9) at the thread connection position of the socket pipe (2), and the cementing layer (9) is arranged circumferentially along the socket pipe (2).

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