Pipe joint for cold plate
By designing the combination of pipe joints with a bent structure and uniform welding, the problems of large flow resistance and complex welding of traditional liquid-cooled plate joints are solved, achieving more efficient cooling and stronger welding strength.
Patent Information
- Application Number
- CN202422902380.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-27
- Publication Date
- 2025-02-14
- Estimated Expiration
- 2034-11-27
AI Technical Summary
The design of traditional liquid-cooled plate joints leads to large flow resistance of the coolant, poor cooling effect, and complex welding process, which affects the welding strength.
Design a tube joint for cold plate. By setting up a flat plate, mounting joint and buffer cavity, the main body of the tube joint is in a bent structure, and the central axis of the conveying hole is bent at an obtuse angle, which increases the fluency of the refrigerant and passes through the solder foil and solder ring. Combination to ensure uniformity of welded seams.
It improves the fluency and cooling effect of the coolant, enhances the welding strength, and solves the problems of large flow resistance of traditional joints and complex welding.
Smart Images

Figure CN222479729U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field related to automobile accessories, in particular to a pipe joint for a cold plate. Background Art
[0002] Liquid cooling plate connectors are key components used to connect cold plates and pipes in liquid cooling systems. They usually need to be able to be quickly connected and disassembled to facilitate maintenance and rapid deployment of the system. The design requirements of liquid cooling plate connectors include good sealing performance, low flow resistance, and material compatibility with the coolant. Liquid cooling technology is becoming increasingly important in fields such as data centers, electric vehicles, and high-performance computing. Therefore, the performance and reliability of liquid cooling plate connectors are crucial to the efficiency and stability of the entire system, but it still has the following disadvantages in actual use:
[0003] The main body of the pipe joint is a vertical structure nozzle. The flow resistance of the refrigerant flowing into the cold plate through the inlet and outlet is large, and the impact on the cold plate is strong. This traditional way of connecting the liquid cold plate and the joint has a large flow resistance. When the coolant flows from the joint to the container surrounded by the liquid cold plate, the diversion effect is poor. The coolant cannot flow smoothly from the joint to the container surrounded by the liquid cold plate, which seriously restricts the cooling effect on the battery. In addition, the strength of this traditional connection structure is poor. When installing the joint, the liquid cold plate is prone to deformation, which can easily cause the product appearance quality to be unqualified. The poor structural strength will also cause the connection strength of the joint and the liquid cold plate to be low;
[0004] During the installation process of the pipe joint body, the laser welder is used to directly perform circumferential welding. During the welding process, the welding head needs to be rotated. The rotation welding operation is complicated, and the angle changes during the rotation process, resulting in uneven strength of the weld and affecting the strength of the welding position. Utility Model Content
[0005] The utility model aims to provide a pipe joint for a cold plate, which solves the problem that the pipe joint body is directly arranged at a right angle, the coolant cannot flow smoothly from the joint to the container surrounded by the liquid cold plate, and the uniformity of the weld cannot be guaranteed during the welding process of the pipe joint and the flat plate, thereby affecting the strength.
[0006] In order to solve the above technical problems, the utility model is realized by the following technical solutions:
[0007] The utility model discloses a pipe joint for a cold plate, comprising a flat plate and a mounting joint, wherein the mounting joint is arranged on one side above the flat plate, a pipe joint body is symmetrically fixed along a vertical center line on one side of the mounting joint close to the center of the flat plate, the pipe joint body is bent, a conveying hole is opened through the pipe joint body along the center line, when working, the pipe joint body is connected to the flat plate through the flat plate, and after the external structure is installed together through the mounting joint, the refrigerant in the external pipeline for conveying the refrigerant is conveyed therein.
[0008] Furthermore, two solder foils are fixed at the top of the plate near the edge of the mounting joint, and through holes are opened in the centers of the two solder foils. The plate is also opened with through holes corresponding to the positions of the two through holes, and the through holes correspond to the positions of the conveying holes at the bottom end of the pipe joint body. The plate fixes the solder ring through the solder foil.
[0009] Furthermore, a mounting hole is provided through the center of the mounting joint, the mounting hole is arranged between the two pipe joint bodies, a connecting hole is provided inside the mounting joint corresponding to the positions of the two conveying holes in the pipe joint bodies, and the mounting joint is installed through the mounting hole.
[0010] Furthermore, a spherical cavity is provided at the bend of the pipe joint body in the delivery hole, the inner diameter of the spherical cavity is the same as the inner diameter of the delivery hole, and the delivery hole is preliminarily buffered by the spherical cavity.
[0011] Furthermore, a fixing ring is fixed in the communicating hole at the edge of the pipe joint body, and the inner diameter of the fixing ring is the same as the inner diameter of the conveying hole, so as to guide the refrigerant to be conveyed by the external pipeline.
[0012] Furthermore, a socket is fixedly connected to the bottom end of the pipe joint body, a slot is provided at the edge of the bottom end of the pipe joint body, a solder ring is fixed to the top of each solder foil, the solder ring is fixed in the slot, and the socket is inserted into the through hole, so that the connection between the pipe joint body and the plate is more convenient during operation.
[0013] The utility model has the following beneficial effects:
[0014] The utility model solves the problem that the coolant cannot smoothly flow from the joint to the container surrounded by the liquid cooling plate when the pipe joint body is directly set at a right angle. First, the mounting bolt is inserted through the mounting hole and then screwed into the external mounting structure, so that the mounting joint is installed on the external mounting structure, and the input pipeline of the external refrigerant is inserted into the connecting hole, so that the refrigerant is transported to the delivery hole on the pipe joint body. The central axis of the delivery hole is set at an obtuse angle when bent, which reduces the flow rate slowdown caused by the large impact when the refrigerant enters the pipe joint body, thereby increasing the smoothness of the refrigerant delivery.
[0015] The utility model solves the problem that the uniformity of the weld cannot be ensured and the strength is affected during the welding process of the pipe joint and the flat plate by arranging the flat plate and the mounting joint. When the pipe joint body and the flat plate are mounted, the mounting joint connected to the pipe joint body is firstly arranged away from the center of the flat plate, and then two solder rings are respectively placed on two solder foils, and the insert sleeve is inserted into the through hole on the solder foil, and then the solder ring is clamped into the clamping groove, and then the solder ring is heated and melted, and after cooling, the pipe joint body and the solder foil are welded together to complete the welding between the pipe joint body and the flat plate, and the melted solder ring can be naturally distributed in the clamping groove at the bottom end of the mounting joint, so that the uniformity of the weld between the pipe joint and the flat plate is better and the welding strength is higher. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.
[0017] Figure 1 A three-dimensional diagram of a pipe joint assembly structure for a cold plate;
[0018] Figure 2 It is a three-dimensional diagram of the flat plate structure;
[0019] Figure 3 It is a three-dimensional diagram of the cross-section structure of the installation joint;
[0020] Figure 4 This is a three-dimensional diagram of the installation joint structure.
[0021] Reference numerals:
[0022] 1. Flat plate; 101. Solder foil; 102. Solder ring; 103. Through hole; 2. Mounting joint; 201. Mounting hole; 202. Connecting hole; 203. Pipe joint body; 204. Delivery hole; 205. Spherical cavity; 206. Fixing ring; 207. Slot; 208. Insert sleeve. DETAILED DESCRIPTION
[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Specific embodiment 1
[0024] See also Figure 1 , 3 4. The utility model is a pipe joint for a cold plate, comprising a flat plate 1 and a mounting joint 2. The mounting joint 2 is arranged on one side above the flat plate 1. The flat plate 1 is fixed on the cold plate so that the liquid input and output in the mounting joint 2 circulates in the cold plate. The flat plate 1 connects a pipe joint body 203 connected to the mounting joint 2 thereon, and provides a connection function for an external conveying pipeline through the mounting joint 2. A pipe joint body 203 is symmetrically fixed along a vertical center line on one side of the mounting joint 2 close to the center of the flat plate 1. Liquid is conveyed through the pipe joint body 203. The pipe joint body 203 is bent to reduce the impact of refrigerant conveying during operation. A conveying hole 204 is opened in the pipe joint body 203 along the center line, and the pipe joint body 203 conveys refrigerant through the conveying hole 204.
[0025] Specifically, two solder foils 101 are fixed at the top of the plate 1 near the edge of the mounting joint 2, and a through hole 103 is opened in the center of the two solder foils 101. The plate 1 also has a through hole 103 corresponding to the position of the two through holes 103. The through hole 103 corresponds to the position of the delivery hole 204 at the bottom end of the pipe joint body 203. The plate 1 fixes the solder ring 102 therein through the solder foil 101, and the refrigerant in and out of the delivery hole 204 at the bottom end of the pipe joint body 203 is connected to the cold plate.
[0026] Furthermore, a mounting hole 201 is provided through the center of the mounting joint 2, and the mounting hole 201 is arranged between the two pipe joint bodies 203. A connecting hole 202 is provided inside the mounting joint 2 at positions corresponding to the two conveying holes 204 in the pipe joint body 203. The mounting joint 2 is connected to an external mounting structure through the mounting hole 201, and is installed together with an external pipeline for conveying refrigerant through the connecting hole 202, so that the refrigerant is conveyed to the conveying hole 204 on the pipe joint body 203 during operation.
[0027] Furthermore, a spherical cavity 205 is provided at the bend of the pipe joint body 203 in the delivery hole 204 . The inner diameter of the spherical cavity 205 is the same as the inner diameter of the delivery hole 204 . The pipe joint body 203 preliminarily buffers the impact of the refrigerant through the spherical cavity 205 .
[0028] The operation process of this embodiment is as follows: when working, first insert the mounting bolt through the mounting hole 201, and then screw it into the external mounting structure, so that the mounting joint 2 is installed on the external mounting structure, and the input pipeline of the external refrigerant is inserted into the connecting hole 202, so that the refrigerant is transported to the delivery hole 204 on the pipe joint body 203. The central axis of the delivery hole 204 is set at an obtuse angle when bent, which reduces the flow rate slowdown caused by the large impact when the refrigerant enters the pipe joint body 203, and increases the smoothness of the refrigerant delivery. Specific embodiment 2
[0029] See also Figure 1-4 On the basis of the specific embodiment 1, a fixing ring 206 is fixed at the edge of the connecting hole 202 near the pipe joint body 203, and the inner diameter of the fixing ring 206 is the same as the inner diameter of the delivery hole 204. The connecting hole 202 guides the transported refrigerant into or out of the delivery hole 204 through the fixing ring 206, and transfers the refrigerant entering and exiting the delivery hole 204 through the fixing ring 206.
[0030] Specifically, the bottom end of the pipe joint body 203 is fixedly connected with a socket 208, and a slot 207 is provided at the edge of the bottom end of the pipe joint body 203. A solder ring 102 is fixed on the top of each solder foil 101, and the solder ring 102 is fixed in the slot 207. The socket 208 is inserted through the through hole 103. When the pipe joint body 203 is installed with the flat plate 1, the installation joint 2 connected with the pipe joint body 203 is firstly set away from the center of the flat plate 1, and then the two solder rings 102 are respectively placed on the two solder foils 101, and the socket 208 is inserted into the through hole 103 on the solder foil 101. Then, the solder ring 102 is stuck in the slot 207, and then the solder ring 102 is heated and melted. After cooling, the pipe joint body 203 and the solder foil 101 are welded together, and the welding between the pipe joint body 203 and the flat plate 1 is completed.
[0031] The operation process of this embodiment is as follows: when the pipe joint body 203 is installed on the flat plate 1, the installation joint 2 connected to the pipe joint body 203 is first set away from the center of the flat plate 1, and then the two solder rings 102 are respectively placed on the two solder foils 101, and the plug sleeve 208 is inserted into the through hole 103 on the solder foil 101, and then the solder ring 102 is clamped into the clamping groove 207, and then the solder ring 102 is heated and melted. After cooling, the pipe joint body 203 and the solder foil 101 are welded together to complete the welding between the pipe joint body 203 and the flat plate 1. When the refrigerant is being transported, it first enters the horizontal part of the transport hole 204, impacts the spherical cavity 205 for initial buffering, and is then transported to the transport hole 204 of the inclined part, and then output to the cold plate through the plug sleeve 208.
[0032] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.
[0033] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.
Claims
1. A pipe joint for a cold plate, comprising a plate (1) and a mounting joint (2), characterized in that: A mounting joint (2) is provided on one side above the plate (1); a pipe joint body (203) is symmetrically fixed along the vertical centerline on one side of the mounting joint (2) close to the center of the plate (1); the pipe joint body (203) is bent; a conveying hole (204) is provided in the pipe joint body (203) along the centerline.
2. A cold plate pipe joint according to claim 1, characterized in that: Two solder foils (101) are fixed to the top of the flat plate (1) at an edge close to the mounting joint (2), a through hole (103) is provided through the center of the two solder foils (101), and the flat plate (1) is also provided with a through hole (103) at a position corresponding to the two through holes (103).
3. A cold plate pipe joint according to claim 1, characterized in that: A mounting hole (201) is provided through the center of the mounting joint (2), the mounting hole (201) is arranged between two pipe joint bodies (203), and a connecting hole (202) is provided inside the mounting joint (2) at positions corresponding to the two conveying holes (204) in the pipe joint bodies (203).
4. A cold plate pipe joint according to claim 3, characterized in that: A spherical cavity (205) is provided at the bending portion of the pipe joint body (203) in the delivery hole (204); the inner diameter of the spherical cavity (205) is the same as the inner diameter of the delivery hole (204).
5. A cold plate pipe joint according to claim 4, characterized in that: A fixing ring (206) is fixed in the communicating hole (202) at an edge close to the pipe joint body (203); the inner diameter of the fixing ring (206) is the same as the inner diameter of the conveying hole (204).
6. A cold plate pipe joint according to claim 2, characterized in that: The bottom end of the pipe joint body (203) is fixedly connected to a socket (208), a slot (207) is provided at the edge of the bottom end of the pipe joint body (203), a solder ring (102) is fixed to the top of each solder foil (101), the solder ring (102) is fixed in the slot (207), and the socket (208) is inserted through the through hole (103).