A heat pipe bending device
By designing a heat pipe bending device that combines a polygonal roller end structure with a central shaft outer sleeve, the problems of frequent mold changes and large positioning errors in traditional methods are solved, enabling efficient bending and precise positioning of heat pipes in confined spaces.
Patent Information
- Application Number
- CN202522513716.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-26
- Publication Date
- 2026-11-06
- Estimated Expiration
- 2035-11-26
AI Technical Summary
In engineering applications, heat pipes vary in diameter and length, and traditional molds are frequently changed, resulting in large positioning errors and making it difficult to bend the pipes efficiently in confined spaces.
A heat pipe bending device was designed, which adopts a polygonal spool end structure, a combination of a central shaft and an outer sleeve, combined with a pawl and ratchet for one-way rotation prevention, and a dovetail groove and dovetail block for limiting, so as to achieve stable bending processing of heat pipes of different sizes.
It enables efficient bending processing of heat pipes in confined spaces, reduces positioning errors, improves the stability of equipment operation and processing accuracy, and adapts to the needs of heat pipes of different sizes and shapes.
Smart Images
Figure CN224938879U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of heat pipe processing technology, and in particular to a heat pipe bending device. Background Technology
[0002] Heat pipes are widely used in electronic heat dissipation, communication power supplies, energy storage power stations, electric vehicle battery packs, aerospace, and home appliance air conditioning due to their high heat transfer capacity per unit mass, large equivalent thermal conductivity, and no external energy consumption. In engineering applications, heat pipes often need to bypass structural components or be aligned with heat sources / radiators within confined spaces, making pipe bending a critical process.
[0003] The existing technical solutions mentioned above have the following drawbacks: the diameter and length of the heat pipe vary, traditional molds need to be changed frequently, and there are large errors in centering and clamping. Utility Model Content
[0004] The purpose of this invention is to provide a heat pipe bending device to solve the problems existing in the prior art.
[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution:
[0006] A heat pipe bending device includes a base, a linear guide rail, a reel, a first bearing seat, and a second bearing seat. The length direction of the linear guide rail and the axial direction of the reel are both in the left-right direction. The linear guide rail is fixedly installed on the top of the base, the first bearing seat is fixedly installed on the top left side of the base, the left end of the reel passes through the first bearing seat, and the second bearing seat is detachably installed on the top right side of the base to fix the right end of the reel. A slider is slidably installed on the linear guide rail along its length direction, and a roller is rotatably installed on the top of the slider. A ratchet is fitted on the left end of the reel, a pawl is movably installed on the bottom right side of the first bearing seat, and one end of a spring is fixedly installed on the bottom of the first bearing seat. The other end of the spring is connected to the pawl. The ratchet, pawl, and spring constitute a one-way anti-rotation structure for the reel.
[0007] By adopting the above technical solution, the two ends of the reel need to be provided with extension ends on the outer side of the first bearing seat / second bearing seat, and the cross section of the extension end should be a polygonal structure. In this way, the reel can be rotated by a wrench using a force-saving lever structure. The roller is used to cooperate with the surface of the reel to limit the spiral angle and pitch of the heat-conducting tube, and to make the heat-conducting tube stick tightly to the surface of the reel during the winding and bending process.
[0008] In a further embodiment, a dovetail groove is provided on the top right side of the base, a dovetail block adapted to the dovetail groove is provided at the bottom of the second bearing seat, and a circular hole with the axial direction in the up-down direction is provided at the right end of the inner bottom of the dovetail groove.
[0009] By adopting the above technical solution, when the second bearing seat needs to be installed on the base, the dovetail block can be slidably inserted into the dovetail groove from right to left, and then the position of the second bearing seat can be restricted by inserting the limiting round rod into the round hole. This setting is to facilitate the removal of the heat-conducting pipe wound on the roller after the tube is bent.
[0010] In a further embodiment, the first bearing housing and the second bearing housing have the same structure. The first bearing housing is composed of a bottom plate and a top plate spliced together. A semi-circular groove that runs through the left and right is provided at the middle position of the top of the bottom plate, and a semi-circular groove that runs through the left and right is provided at the middle position of the bottom of the top plate. The semi-circular grooves at the top of the bottom plate and the semi-circular grooves at the bottom of the top plate form a circular mounting hole with the same diameter.
[0011] By adopting the above technical solution, different specifications of rollers can be installed on the base by replacing the bottom plate and the top plate, and heat conduction pipes of different sizes can be wound.
[0012] In a further embodiment, the reel includes a central shaft and an outer sleeve.
[0013] By adopting the above technical solution and replacing the outer sleeve with different structures and sizes, it is possible to wind heat pipes of different shapes and sizes.
[0014] In a further embodiment, bearings are fitted at both ends of the central shaft.
[0015] By adopting the above technical solution, the bearings at both ends work together to form a stable two-point support for the central shaft, effectively limiting the radial and axial movement of the shaft. This allows the shaft to maintain a precise axial center position even when rotating at high speed or bearing a load, ensuring the stability of equipment operation and the accuracy of processing, transmission, and other operations, and avoiding errors or malfunctions caused by shaft wobble.
[0016] In a further embodiment, a fixing plate is fixedly installed on the left end of the reel, the fixing plate being used to fix the left end of the heat pipe.
[0017] By adopting the above technical solution, the fixation of the left end of the heat pipe by the fixing plate can effectively limit the lateral and longitudinal displacement of the heat pipe on the spool, and prevent the heat pipe from shifting due to the rotation of the spool or external vibration. This ensures that the system structure composed of the spool and the heat pipe is more stable and reliable, and reduces the risk of failure caused by loosening.
[0018] In summary, this utility model has the following beneficial effects:
[0019] 1. By setting the polygonal extension ends at both ends of the scroll, it is possible to turn the scroll more easily using a wrench;
[0020] 2. By using a central shaft and an outer sleeve on the reel, it is possible to achieve different shapes and sizes of winding processing by changing the outer sleeve of different sizes;
[0021] 3. The ratchet and pawl mechanism can effectively prevent the scroll from rotating in one direction. Attached Figure Description
[0022] Figure 1 This is an overall schematic diagram of the present invention, used to illustrate the connection relationship between the scroll, the first bearing seat, and the second bearing seat.
[0023] In the diagram, 1 is the base; 2 is the linear guide rail; 3 is the reel; 4 is the first bearing seat; 5 is the second bearing seat; 6 is the slider; 7 is the roller; 8 is the ratchet; 9 is the pawl; 10 is the base plate; 11 is the top plate; 31 is the central shaft; 32 is the outer sleeve; 12 is the bearing; and 13 is the fixing plate. Detailed Implementation
[0024] The present invention will be further described in detail below with reference to the accompanying drawings.
[0025] Identical parts are indicated by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "upper," and "lower" used in the following description refer to the attached figures. Figure 1 In this specification, the terms "bottom surface" and "top surface," "inner" and "outer" refer to the direction toward or away from the geometry of a specific component. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this specification, "a plurality of" means two or more, unless otherwise explicitly and specifically defined by the direction of the center.
[0026] Example 1:
[0027] like Figure 1As shown, a heat pipe bending device includes a base 1, a linear guide rail 2, a reel 3, a first bearing seat 4, and a second bearing seat 5. The length direction of the linear guide rail 2 and the axial direction of the reel are both left-right. The linear guide rail 2 is fixedly installed on the top of the base 1. The first bearing seat 4 is fixedly installed on the top left side of the base 1. The left end of the reel 3 passes through the first bearing seat 4. The second bearing seat 5 is detachably installed on the top right side of the base 1. The second bearing seat 5 is used to fix the right end of the reel 3. A slider 6 is slidably installed on the linear guide rail 2 along the length direction of the linear guide rail 2. A roller 7 is rotatably installed on the top of the slider 6. A ratchet 8 is sleeved on the left end of the reel 3. A pawl 9 is movably installed on the bottom right side of the first bearing seat 4. One end of a spring is fixedly installed on the bottom end of the first bearing seat 4. The other end of the spring is connected to the pawl 9. The ratchet 8, pawl 9, and spring constitute a one-way anti-rotation structure for the reel.
[0028] A dovetail groove is provided on the top right side of the base 1, and a dovetail block adapted to the dovetail groove is provided at the bottom of the second bearing seat 5. A circular hole with the axis direction in the up-down direction is provided at the bottom right end of the dovetail groove. The first bearing seat 4 and the second bearing seat 5 have the same structure. The first bearing seat 4 is composed of a bottom plate 10 and a top plate 11 spliced together. A semi-circular groove that runs through the left and right is provided at the top middle position of the bottom of the bottom plate 10, and a semi-circular groove that runs through the left and right is provided at the bottom middle position of the bottom of the top plate 11. The semi-circular groove at the top of the bottom plate 10 and the semi-circular groove at the bottom of the top plate 11 form a circular mounting hole with the same diameter. The roller 3 includes a central shaft 31 and an outer sleeve 32. Bearings 12 are sleeved on both ends of the central shaft 12. A fixing plate 13 is fixedly installed on the left end of the roller 3. The fixing plate 13 is used to fix the left end of the heat conduction pipe.
[0029] Specific implementation process: Place one end of the heat pipe in the roller 7 and clamp it tightly. Make the heat pipe close to the roller 3. The operator rotates the central shaft 31 with a wrench, which drives the outer sleeve 32 to rotate. Since the heat pipe is close to the outer sleeve 32, the heat pipe will bend. Pushing the slider 6 can extend the bending length of the heat pipe. After the processing is completed, remove the second bearing seat 5, take the heat pipe out from the outer wall of the outer sleeve 32, and then install the second bearing seat 5 back onto the base 1.
[0030] In the embodiments disclosed in this utility model, the terms "installation," "connection," "linking," and "fixing" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; "linking" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments disclosed in this utility model according to the specific circumstances.
[0031] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.
Claims
1. A heat pipe bending device, comprising a base (1), a linear guide rail (2), a roller (3), a first bearing seat (4), and a second bearing seat (5), characterized in that: The linear guide (2) is in the left-right direction along its length and the axis of the spool. The linear guide (2) is fixedly installed on the top of the base (1). The first bearing seat (4) is fixedly installed on the top left side of the base (1). The left end of the spool (3) passes through the first bearing seat (4). The second bearing seat (5) is detachably installed on the top right side of the base (1). The second bearing seat (5) is used to fix the right end of the spool (3). A slider (6) is slidably installed on the linear guide (2) along its length. A roller (7) is rotatably installed on the top of the slider (6). A ratchet (8) is sleeved on the left end of the spool (3). A pawl (9) is movably installed on the bottom right side of the first bearing seat (4). One end of a spring is fixedly installed on the bottom of the first bearing seat (4). The other end of the spring is connected to the pawl (9). The ratchet (8), pawl (9) and spring constitute a one-way anti-rotation structure for the spool.
2. The heat pipe bending device according to claim 1, characterized in that: The base (1) has a dovetail groove on the top right side, and the second bearing seat (5) has a dovetail block adapted to the dovetail groove at the bottom. The dovetail groove has a circular hole with the axis direction in the up-down direction at the bottom right end.
3. The heat pipe bending device according to claim 1, characterized in that: The first bearing housing (4) and the second bearing housing (5) have the same structure. The first bearing housing (4) is composed of a bottom plate (10) and a top plate (11). A semi-circular groove that runs through the left and right is provided at the middle position of the top of the bottom plate (10). A semi-circular groove that runs through the left and right is provided at the middle position of the bottom of the top plate (11). The semi-circular groove at the top of the bottom plate (10) and the semi-circular groove at the bottom of the top plate (11) form a circular mounting hole with the same diameter.
4. The heat pipe bending device according to claim 1, characterized in that: The spool (3) includes a central shaft (31) and an outer sleeve (32).
5. A heat pipe bending device according to claim 4, characterized in that: Bearings (12) are fitted at both ends of the central shaft (31).
6. The heat pipe bending device according to claim 1, characterized in that: A fixing plate (13) is fixedly installed on the left end of the roller (3), and the fixing plate (13) is used to fix the left end of the heat pipe.