Liquid cooling heat dissipation pump and pipe joint connecting structure thereof

Abstract

This invention provides a liquid-cooled heat dissipation pump and its pipe connector connection structure. The pipe connector connection structure includes a mounting hole formed on the pump casing wall and communicating with the inner cavity of the pump casing; a insertion pipe located at one end of the pipe connector and inserted into the mounting hole; and a sealing ring fitted onto the insertion pipe to seal the gap between the outer wall of the insertion pipe and the inner wall of the mounting hole. The insertion pipe is a stepped shaft tube that gradually thickens from one end near the inside of the pump casing to the other end, with at least two stepped sections fitted with the sealing ring. The mounting hole is a stepped hole adapted to the insertion pipe. A snap-fit ​​groove is formed on the outer wall of the insertion pipe, and a corresponding insertion hole is formed on the wall of the mounting hole. A locking mechanism passes through the insertion hole and snaps into the snap-fit ​​groove to fix the insertion pipe axially. This invention provides a stable and durable sealing effect between the pipe connector and the pump casing through a stepped multi-stage sealing waterproofing system, while the locking mechanism enhances the connection stability between the pipe connector and the pump casing.

Description

Technical Field

[0001] This invention relates to the field of heat dissipation technology for electrical equipment, and in particular to a liquid-cooled heat pump and its pipe joint connection structure. Background Technology

[0002] Liquid-cooled heat pumps are widely used in electrical appliances such as computer mainframes due to their excellent heat dissipation performance, effectively cooling and dissipating heat from chips that generate a large amount of heat during high-speed operation. A typical liquid-cooled heat pump includes a pump housing and a pipe connector assembled onto the pump housing and communicating with the inner cavity of the pump housing. The pipe connector is sealed to the pump housing via a pipe connector connection structure. The pipe connector connection structure includes a mounting hole formed in the pump housing wall and communicating with the inner cavity of the pump housing, a insertion pipe located at one end of the pipe connector and correspondingly inserted into the mounting hole, and a sealing ring fitted onto the insertion pipe to close the gap between the outer wall of the insertion pipe and the inner wall of the mounting hole. To improve sealing performance, multiple sealing rings distributed axially can be fitted onto the insertion pipe to form a multi-stage seal.

[0003] In the course of implementation, the inventors of this application discovered that the insertion pipe and the pump housing lack effective axial fixing measures. Instead, they rely solely on the sealing rings fitted on the insertion pipe to tighten and seal against the inner wall of the mounting hole. While this provides good radial fixing, the axial fixing effect is relatively poor. When subjected to external force, the insertion pipe can easily detach from the mounting hole. Furthermore, existing insertion pipes have uniform thickness throughout. Although multiple sealing rings are fitted, the innermost sealing ring, due to prolonged contact with the coolant inside the pump housing, is prone to aging and failure. This allows the coolant to then directly contact the outermost sealing ring. Over time, all the sealing rings may fail one by one, leading to a gradual decline in sealing performance. Summary of the Invention

[0004] The technical problem to be solved by the embodiments of the present invention is to provide a pipe joint connection structure for a liquid-cooled heat pump, which ensures that the pipe joint is stably assembled on the pump casing and can achieve effective sealing.

[0005] A further technical problem to be solved by the embodiments of the present invention is to provide a liquid-cooled heat dissipation pump that ensures that the pipe joint is securely assembled onto the pump housing and can achieve effective sealing.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a pipe joint connection structure for a liquid-cooled heat pump, used to seal the pipe joint to the pump casing of the liquid-cooled heat pump. The pipe joint connection structure includes an installation hole formed on the wall of the pump casing and communicating with the inner cavity of the pump casing; a insertion pipe provided at one end of the pipe joint and correspondingly inserted into the installation hole; and a sealing ring sleeved on the insertion pipe to close the gap between the outer wall of the insertion pipe and the inner wall of the installation hole. The insertion pipe is a stepped shaft tube that gradually thickens from one end near the inside of the pump casing to the other end near the outside of the pump casing. The sealing ring is respectively sleeved on at least two stepped sections of the insertion pipe. The installation hole is a stepped hole adapted to the insertion pipe. A snap-fit ​​groove is also formed on the outer wall of the insertion pipe. A corresponding insertion hole is formed on the wall of the installation hole. A locking mechanism passes through the insertion hole and is correspondingly snapped into the snap-fit ​​groove to fix the pipe joint in the axial direction of the insertion pipe.

[0007] Furthermore, a positioning protrusion is provided on a stepped section of the insertion pipe. The outer diameter of the positioning protrusion is matched with the inner diameter tolerance of the corresponding position of the mounting hole to position the insertion pipe radially. The sealing ring is fitted on the insertion pipe at a position closer to the inside of the pump housing than the positioning protrusion.

[0008] Furthermore, the stepped section of the insertion tube at the end away from the pump housing also protrudes outward to form a stop protrusion for correspondingly abutting against the outer surface of the shell wall surrounding the outer end opening of the mounting hole to limit the insertion depth of the insertion tube in the mounting hole.

[0009] Furthermore, the locking mechanism is a locking spring piece with one end fixed to the pump housing and the other end forming a locking slot. The locking spring piece with the locking slot passes through the insertion hole and extends into the mounting hole, and is correspondingly locked into the locking groove of the insertion tube. The periphery of the locking slot is correspondingly attached to the bottom wall of the locking groove.

[0010] Furthermore, the snap-fit ​​groove is also provided with a limiting protrusion protruding from the side wall or bottom wall of the groove. The outer edge of the snap-fit ​​end of the snap-fit ​​piece is bent on the opposite sides of the snap-fit ​​opening to form a limiting baffle. When the snap-fit ​​piece is inserted into the snap-fit ​​groove, the limiting protrusion and one of the side walls of the snap-fit ​​groove abut against the opposite sides of the snap-fit ​​end in the axial direction of the mounting hole. The two limiting baffles are located in the snap-fit ​​groove and cooperate with the limiting protrusion to limit the angular travel range of the pipe joint rotating around the central axis of the mounting hole.

[0011] Furthermore, the portion between the fixed end and the locking end of the locking spring is bent at least twice, and the fixed end is parallel to the locking end.

[0012] Furthermore, the fixed end of the locking spring is provided with a locking groove formed by recessing from the outer edge of the fixed end. The pump housing includes a bottom shell and a cover plate that are mutually covered and fixedly assembled. The mounting hole is formed on the bottom shell. A locking post protrudes from the cover plate corresponding to the locking groove. When the cover plate is fixedly assembled to the bottom shell, the locking post is correspondingly inserted into the locking groove to lock the locking spring.

[0013] Furthermore, the end of the locking pin protrudes radially into an anti-reverse ring to prevent the locking pin from dislodging from the locking groove of the locking spring.

[0014] On the other hand, in order to solve the above-mentioned technical problems, the embodiments of the present invention provide the following solution: a liquid-cooled heat pump, including a pump housing and a pipe joint assembled on the pump housing and communicating with the inner cavity of the pump housing, wherein the pipe joint is sealed to the pump housing through the pipe joint connection structure of the liquid-cooled heat pump as described in any of the above claims.

[0015] Furthermore, the pump casing is provided with two mounting holes, and each mounting hole is correspondingly and sealingly connected to a pipe connector to connect to the inlet pipe and the outlet pipe respectively. The inner cavity of the pump casing is divided into a first chamber and a second chamber by a partition. The partition is also provided with a through hole corresponding to the first chamber and the second chamber. The first chamber and the second chamber are each connected to a mounting hole. One end of the pipe connector used to connect to the inlet pipe or the outlet pipe is provided with a corresponding connecting pipe inserted into the inlet pipe or the outlet pipe. The outer wall of the connecting pipe is formed with a barb that fits and seals with the wall of the inlet pipe or the outlet pipe.

[0016] After adopting the above technical solution, the embodiments of the present invention have at least the following beneficial effects: The embodiments of the present invention design the insertion tube on the pipe joint for insertion into the mounting hole of the pump housing as a stepped shaft tube that gradually thickens from the inside of the pump housing to the outside. The mounting hole on the pump housing is also correspondingly designed as a stepped hole adapted to the insertion tube. Sealing rings are fitted on at least two stepped sections of the insertion tube. When the insertion tube is inserted into the mounting hole, a stepped multi-stage sealing effect can be achieved. Even if the innermost sealing ring ages and leaks due to long-term immersion in coolant, the step at the transition point of the stepped sections of the insertion tube can prevent coolant from contacting and corroding the next sealing ring, making the sealing effect between the insertion tube and the mounting hole more stable and durable. Furthermore, by setting a locking mechanism to pass through the insertion hole opened in the wall of the mounting hole and engage with the engaging groove on the outer wall of the insertion tube, the axial fixation of the insertion tube is achieved, ensuring that the insertion tube can be securely assembled in the mounting hole and will not fall out. Attached Figure Description

[0017] Figure 1This is a schematic diagram of the split-state structure of an optional embodiment of the liquid-cooled heat pump of the present invention.

[0018] Figure 2 This is a schematic cross-sectional view along the central axis of a pipe joint, representing an alternative embodiment of the liquid-cooled heat pump of the present invention.

[0019] Figure 3 This is a schematic diagram of the split-state structure of another optional embodiment of the liquid-cooled heat pump of the present invention.

[0020] Figure 4 This is a cross-sectional view along the central axis of a pipe joint, representing another alternative embodiment of the liquid-cooled heat pump of the present invention.

[0021] Figure 5 This is a three-dimensional structural diagram of the locking spring sheet, which is an optional embodiment of the pipe joint connection structure of the liquid-cooled heat pump of the present invention.

[0022] Figure 6 This is a three-dimensional structural diagram of the pipe connector of another optional embodiment of the liquid-cooled heat pump of the present invention.

[0023] Figure 7 This is a three-dimensional structural diagram of the bottom shell in an optional embodiment of the liquid-cooled heat pump of the present invention.

[0024] Figure 8 This is a schematic cross-sectional view of the bottom casing along a mounting hole in an optional embodiment of the liquid-cooled heat pump of the present invention. Detailed Implementation

[0025] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments. It should be understood that the following illustrative embodiments and descriptions are only used to explain the present invention and are not intended to limit the present invention. Moreover, the embodiments and features in the embodiments of the present application can be combined with each other unless otherwise specified.

[0026] like Figures 1-4As shown, an optional embodiment of the present invention provides a pipe connector connection structure for a liquid-cooled heat pump, used to seal a pipe connector 3 to the pump housing 1 of the liquid-cooled heat pump. The pipe connector connection structure includes a mounting hole 10 formed on the wall of the pump housing 1 and communicating with the inner cavity of the pump housing 1, a insertion pipe 30 disposed at one end of the pipe connector 3 and correspondingly inserted into the mounting hole 10, and a sealing ring 4 sleeved on the insertion pipe 30 to close the gap between the outer wall of the insertion pipe 30 and the inner wall of the mounting hole 10. The insertion pipe 3 is self-supporting to the pump housing. The inner end of the tube 30 is a stepped shaft tube that gradually thickens in sections towards the outer end of the pump housing 1. The sealing ring 4 is fitted on at least two stepped sections of the insertion tube 30. The mounting hole 10 is a stepped hole that is adapted to the insertion tube 30. A snap-fit ​​groove 301 is also provided on the outer wall of the insertion tube 30. A corresponding insertion hole 101 is provided on the wall of the mounting hole 10. A locking mechanism 5 passes through the insertion hole 101 and is snapped into the snap-fit ​​groove 301 to fix the tube connector 3 in the axial direction of the insertion tube 30.

[0027] In this embodiment of the invention, the insertion pipe 30 on the pipe connector 3, which is used to insert into the mounting hole 10 of the pump housing 1, is designed as a stepped shaft pipe that gradually thickens from the inside of the pump housing 1 to the outside. The mounting hole 10 on the pump housing 1 is also designed as a stepped hole that matches the insertion pipe 30. Sealing rings 4 are respectively fitted on at least two stepped sections of the insertion pipe 30. When the insertion pipe 30 is inserted into the mounting hole 10, a stepped multi-seal effect can be achieved. Even if the innermost sealing ring 4 ages and leaks due to long-term immersion in coolant, the step at the transition of the stepped sections of the insertion pipe 30 can prevent the coolant from contacting and corroding the next sealing ring, making the sealing effect between the insertion pipe 30 and the mounting hole 10 more stable and durable. Furthermore, a locking mechanism 5 is provided to pass through the insertion hole 101 formed in the wall of the mounting hole 10 and engage with the engaging groove 301 on the outer wall of the insertion tube 30, thereby axially fixing the insertion tube 30 and ensuring that the insertion tube 30 can be securely assembled in the mounting hole 10 and will not fall out of the mounting hole 10. In specific implementation, the locking mechanism 5 can be a pin, a snap ring, or other similar structure.

[0028] In another optional embodiment of the present invention, such as Figures 1-6As shown, a positioning protrusion ring 303 is also provided on a stepped section of the insertion pipe 30. The outer diameter of the positioning protrusion ring 303 is in tolerance with the inner diameter of the corresponding position of the mounting hole 10 to position the insertion pipe 30 radially. The sealing ring 4 is sleeved on the insertion pipe 30 at a position closer to the inside of the pump housing 1 than the positioning protrusion ring 303. In this embodiment, by providing a positioning protrusion ring 303 on a stepped section of the insertion pipe 30, and by using the tolerance between the outer diameter of the positioning protrusion ring 303 and the inner diameter of the corresponding position of the mounting hole 10 to position the radial position of the insertion pipe 30 inserted into the mounting hole 10, it is convenient to ensure the alignment of the insertion pipe 30 and the mounting hole 10 axis.

[0029] In yet another optional embodiment of the present invention, such as Figures 1-4 As shown, the stepped section of the insertion tube 30 at the end away from the pump housing 1 also has a correspondingly protruding stop protrusion 305 for correspondingly abutting against the outer surface of the housing wall surrounding the outer end opening of the mounting hole 10 to limit the insertion depth of the insertion tube 30 in the mounting hole 10. In this embodiment, by forming a stop protrusion 305 on the outer wall of the insertion tube 30 at the end away from the pump housing 1, when the insertion tube 30 is inserted and installed, the stop protrusion 305 abuts against the outer surface of the housing wall surrounding the outer end opening of the mounting hole 10 to limit the insertion depth of the insertion tube 30 in the mounting hole 10, which facilitates the positioning of the axial position of the pipe connector 3 in the mounting hole 10.

[0030] In yet another optional embodiment of the present invention, such as Figures 1-4 As shown, the locking mechanism 5 is a locking spring piece 50 with one end as a fixed end 501 fixed to the pump housing 1 and the other end as a locking end 503 with a corresponding locking slot 5030. The end of the locking spring piece 50 with the locking slot 5030 passes through the insertion hole 101 and extends into the mounting hole 10 and is correspondingly locked into the locking groove 301 of the insertion tube 30. The periphery of the locking slot 5030 is correspondingly attached to the bottom wall of the locking groove 301. In this embodiment, the locking mechanism 5 has one end fixed to the pump housing 1 and the other end forming a locking spring 50 with a bayonet 5030. The locking spring 50 extends into the insertion hole 101 with the bayonet 5030 end and engages with the engagement groove 301 of the insertion tube 30. The periphery of the bayonet 5030 fits against the bottom wall of the engagement groove 301, resulting in a compact structure and a firm engagement, thus fixing the insertion tube 30 in its axial direction. The installation operation is relatively simple and quick. In specific implementation, the engagement groove 301 is located on the outer wall of the corresponding stepped section of the insertion tube 30 and is arranged circumferentially. The insertion hole 101 is a semi-circular hole. When the locking spring 50 locks the tube connector 3, the tube connector 3 can still rotate circumferentially relative to the pump housing 1 within the mounting hole 10, facilitating the subsequent positioning installation of the tube connector 3.

[0031] In yet another optional embodiment of the present invention, such as Figures 4-6 As shown, the snap-fit ​​groove 301 is also provided with a limiting protrusion 3010 protruding from the side wall or bottom wall of the groove. The outer edge of the snap-fit ​​end 503 of the snap-fit ​​spring 50 is bent on the opposite sides of the snap-fit ​​opening 5030 to form a limiting baffle 5032. When the snap-fit ​​spring 50 is inserted into the snap-fit ​​groove 301, the limiting protrusion 3010 and one of the side walls of the snap-fit ​​groove 301 abut against the opposite side surfaces of the snap-fit ​​end 503 in the axial direction of the mounting hole 10, and the two limiting baffles 5032 are located in the snap-fit ​​groove 301 and cooperate with the limiting protrusion 3010 to limit the angular travel range of the pipe connector 3 rotating around the central axis of the mounting hole 10. In this embodiment, a limiting protrusion 3010 is formed protruding in the snap-fit ​​groove 301, and the snap-fit ​​end 503 of the snap-fit ​​spring 50 is bent on both sides of the snap-fit ​​opening 5030 to form a limiting baffle 5032. During the locking operation, the snap-fit ​​spring 50 is inserted into the snap-fit ​​groove 301 and clamped and fixed by the limiting protrusion 3010 and the groove wall of the snap-fit ​​groove 301 on the opposite side. The outer edge of the snap-fit ​​end 503 of the snap-fit ​​spring 50 is bent on both sides of the snap-fit ​​opening 5030 to form a limiting baffle 5032, which abuts against the limiting protrusion 3010 to limit the angular travel range of the pipe joint 3 rotating around the central axis of the mounting hole 10. During the specific installation of the pipe connector 3, the insertion tube 30 is first inserted into the mounting hole 10 and rotated to a predetermined angle. Then, the locking spring 50 is engaged until one of the limiting plates 5032 on it passes over the limiting protrusion 3010. The insertion tube 30 is rotated circumferentially so that the connection direction of the pipe connector 3 can be adjusted within the range where the opposite sides of the limiting protrusion 3010 abut against any of the limiting plates 5032.

[0032] In yet another optional embodiment of the present invention, such as Figure 1 , Figure 3 , Figure 4 and Figure 5 As shown, the portion between the fixed end 501 and the locking end 503 of the locking spring 50 is bent at least twice, and the fixed end 501 and the locking end 503 are parallel. This embodiment, by bending the portion between the fixed end 501 and the locking end 503 of the locking spring 50 at least twice, greatly enhances the toughness of the locking spring 50, making it less prone to breakage; it also increases the elastic deformation of the fixed end 501 and the locking end 503, providing a large tolerance range and facilitating the locking operation; simultaneously, the parallelism between the fixed end 501 and the locking end 503 ensures that the locking force applied within the locking groove 301 is perpendicular to the axis of the insertion tube 3, resulting in a good fixing effect.

[0033] In another optional embodiment of the present invention, such as Figure 3and Figure 5 As shown, the fixed end 501 of the locking spring 50 has a locking groove 5010 formed by recessing from the outer edge of the fixed end 501. The pump housing 1 includes a bottom shell 12 and a cover plate 14 that are mutually capped and fixedly assembled. The mounting hole 10 is formed on the bottom shell 12. A locking post 141 protrudes from the cover plate 14 corresponding to the locking groove 5010. When the cover plate 14 is fixedly assembled to the bottom shell 12, the locking post 141 is correspondingly engaged in the locking groove 5010 to lock the locking spring 50. In this embodiment, the locking groove 5010 formed by recessing from the outer edge of the fixed end 501 and the corresponding protruding locking post 141 on the cover plate 14 of the pump housing 1, with the locking post 141 being engaged in the locking groove 5010, locks the fixed end 501 of the locking spring 50 to the pump housing 1. The structure is simple and the connection is stable. In practical implementation, the cover plate 14 can be locked to the bottom shell 12 by screws 16 and at the same time press the locking post 141 against the locking groove 5010, resulting in good structural stability.

[0034] In yet another optional embodiment of the present invention, such as Figure 3 As shown, the locking pin 141 has a radially protruding anti-reverse ring 1410 at its end to prevent it from dislodging from the locking groove 5010 of the locking spring 50. This embodiment, by having an anti-reverse ring 1410 protrude radially from the end of the locking pin 141, prevents the locking pin 141 from dislodging from the locking groove 5010 of the locking spring 50, thus enhancing structural stability.

[0035] On the other hand, such as Figures 1-4 As shown, in another embodiment of the present invention, a liquid-cooled heat pump is further provided, including a pump housing 1 and a pipe connector 3 assembled on the pump housing 1 and communicating with the inner cavity of the pump housing 1. The pipe connector 3 is sealed to the pump housing 1 through the pipe connector connection structure of the liquid-cooled heat pump as described in any of the above embodiments. In this embodiment, by setting the pipe connector connection structure on the liquid-cooled heat pump as the pipe connector connection assembly described in any of the above embodiments, a stepped multi-stage sealing and waterproof structure is formed by the mutual adaptation of the stepped tubular insertion pipe 30 and the stepped hole-shaped mounting hole 10, so that the sealing effect between the pipe connector 3 and the pump housing 1 is stable and durable. At the same time, a locking mechanism 5 is provided to improve the connection stability between the pipe connector 3 and the pump housing 1 in the axial direction of the insertion pipe 30, so that it will not easily fall off.

[0036] In yet another optional embodiment of the present invention, such as Figure 1 , Figure 4 , Figure 7 and Figure 8As shown, the pump housing 1 is provided with two mounting holes 10, and each mounting hole 10 is correspondingly and sealed to a pipe connector 3 to connect to the inlet pipe (not shown) and the outlet pipe (not shown) respectively. The inner cavity of the pump housing 1 is divided into a first chamber 181 and a second chamber 183 by a partition 18. The partition 18 is also provided with a through hole 182 corresponding to the first chamber 181 and the second chamber 183. The first chamber 181 and the second chamber 183 are each connected to a mounting hole 10. The end of the pipe connector 3 used to connect to the inlet pipe or the outlet pipe is provided with a connecting pipe 32 corresponding to be inserted into the inlet pipe or the outlet pipe. The outer wall of the connecting pipe 32 is formed with a barb 321 that cooperates with the wall of the inlet pipe or the outlet pipe to seal. In this embodiment, the inner cavity of the pump casing 1 is divided into a first chamber 181 and a second chamber 183 by setting a partition 18. The first chamber 181 and the second chamber 183 are connected by a through hole 182 on the partition 18. The two mounting holes 10 on the pump casing 1 are connected to the first chamber 181 and the second chamber 183 respectively by their connecting holes 102 at their ends. This is used to introduce the coolant introduced by the inlet pipe and the coolant sucked out by the outlet pipe after heat absorption into different chambers to form a complete coolant circulation route and achieve efficient heat exchange. At the same time, in actual installation and use, the outer wall of the side chamber of the pump casing 1 connected to the inlet pipe (one of the first chamber 181 and the second chamber 183) is pressed tightly against the external heat source electrical appliance, which can further improve the heat dissipation efficiency of the liquid-cooled heat pump for the corresponding external electrical appliance. Furthermore, a connecting pipe 32 is provided at one end of the pipe connector 3 relative to the insertion pipe 30. The connecting pipe 32 achieves a sealed connection with the inlet pipe or outlet pipe through the barb 321 at its end, which facilitates the insertion connection operation.

[0037] The embodiments of the present invention have been described above with reference to the accompanying drawings. However, the present invention is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many variations under the guidance of the present invention without departing from the spirit and scope of the claims. These variations are all within the scope of protection of the present invention.

Claims

1. A pipe connector connection structure for a liquid-cooled heat pump, used to seal a pipe connector to the pump casing of the liquid-cooled heat pump, the pipe connector connection structure comprising a mounting hole formed in the wall of the pump casing and communicating with the inner cavity of the pump casing, a insertion pipe disposed at one end of the pipe connector and correspondingly inserted into the mounting hole, and a sealing ring sleeved on the insertion pipe to close the gap between the outer wall of the insertion pipe and the inner wall of the mounting hole, characterized in that, The insertion tube is a stepped axial tube that gradually thickens from one end inside the pump housing to the other end. The sealing ring is fitted onto at least two stepped sections of the insertion tube. The mounting hole is a stepped hole adapted to the insertion tube. A snap-fit ​​groove is also provided on the outer wall of the insertion tube, and a corresponding insertion hole is provided on the wall of the mounting hole. A locking mechanism passes through the insertion hole and engages with the snap-fit ​​groove to fix the pipe connector axially. The locking mechanism is a locking spring, comprising: a fixed end and a locking end with a formed bayonet, the bayonet engaging within the locking groove; and The snap-fit ​​groove is provided with a limiting protrusion, and the outer edge of the snap-fit ​​end is bent to form a limiting baffle. The limiting baffle and the limiting protrusion cooperate to limit the angular travel range of the pipe joint rotating around the central axis of the mounting hole.

2. The pipe joint connection structure of the liquid-cooled heat pump as described in claim 1, characterized in that, A positioning protrusion ring is also provided on a stepped section of the insertion pipe. The outer diameter of the positioning protrusion ring is matched with the inner diameter of the corresponding position of the mounting hole to position the insertion pipe radially. The sealing ring is fitted on the insertion pipe at a position closer to the inside of the pump housing than the positioning protrusion ring.

3. The pipe joint connection structure of the liquid-cooled heat pump as described in claim 1, characterized in that, The stepped section of the insertion tube away from the pump housing also has a corresponding outward protrusion forming a stop protrusion for correspondingly abutting against the outer surface of the shell wall around the outer end opening of the mounting hole to limit the insertion depth of the insertion tube in the mounting hole.

4. The pipe joint connection structure of the liquid-cooled heat pump as described in claim 1, characterized in that, The fixed end of the locking spring is correspondingly fixed to the pump housing, and the corresponding locking end is correspondingly formed with the bayonet. The locking end passes through the insertion hole and extends into the mounting hole to be correspondingly locked into the locking groove of the insertion tube. The periphery of the bayonet is correspondingly attached to the bottom wall of the locking groove.

5. The pipe joint connection structure of the liquid-cooled heat pump as described in claim 4, characterized in that, The limiting protrusion protrudes from the side wall or bottom wall of the slot within the locking groove. The outer edge of the locking end of the locking spring is bent on both sides of the locking opening to form limiting baffles. When the locking spring is inserted into the locking groove, the limiting protrusion and one side wall of the locking groove abut against the opposite sides of the locking end in the axial direction of the mounting hole, and the two limiting baffles are correspondingly located within the locking groove.

6. The pipe joint connection structure of the liquid-cooled heat pump as described in claim 4, characterized in that, The portion between the fixed end and the locking end of the locking spring is bent at least twice, and the fixed end is parallel to the locking end.

7. The pipe joint connection structure of the liquid-cooled heat pump as described in claim 4, 5, or 6, characterized in that, The fixed end of the locking spring is provided with a locking groove formed by recessing from the outer edge of the fixed end. The pump housing includes a bottom shell and a cover plate that are mutually covered and fixedly assembled. The mounting hole is formed on the bottom shell. A locking post protrudes from the cover plate corresponding to the locking groove. When the cover plate is fixedly assembled to the bottom shell, the locking post is correspondingly inserted into the locking groove to lock the locking spring.

8. The pipe joint connection structure of the liquid-cooled heat pump as described in claim 7, characterized in that, The locking pin has a radially protruding anti-reverse ring at its end to prevent it from dislodging from the locking groove of the locking spring.

9. A liquid-cooled heat dissipation pump, comprising a pump housing and a pipe joint assembled on the pump housing and communicating with the inner cavity of the pump housing, characterized in that, The pipe joint is sealed to the pump casing via the pipe joint connection structure of the liquid-cooled heat pump as described in any one of claims 1-8.

10. The liquid-cooled heat pump as described in claim 9, characterized in that, The pump casing has two mounting holes, each corresponding to a pipe connector for sealing connection to the inlet pipe and outlet pipe respectively. The inner cavity of the pump casing is divided into a first chamber and a second chamber by a partition. The partition also has a through hole connecting the first chamber and the second chamber. The first chamber and the second chamber are each connected to a mounting hole. The end of the pipe connector used to connect to the inlet pipe or the outlet pipe is provided with a connecting pipe that is inserted into the inlet pipe or the outlet pipe. The outer wall of the connecting pipe has barbs that fit and seal with the wall of the inlet pipe or the outlet pipe.

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