CN114876932A

CN114876932A - Screw rod with heat dissipation function and assembly method

Info

Publication number: CN114876932A
Application number: CN202210391028.7A
Authority: CN
Inventors: 陈乃奇; 丘明基
Original assignee: Shenzhen Anteland Technology Co Ltd
Current assignee: Shenzhen Anteland Technology Co Ltd
Priority date: 2022-04-14
Filing date: 2022-04-14
Publication date: 2022-08-09
Anticipated expiration: 2042-04-14
Also published as: CN114876932B

Abstract

The invention discloses a screw rod with a heat dissipation function and an assembly method, wherein the screw rod is made of a heat conduction material and comprises the following components: the outer circumference of one end part of the cylinder is provided with an external thread, at least two channels with two through ends are arranged in the axial lead direction of the cylinder, and the at least two channels are mutually communicated by arranging a plurality of through holes; the heat dissipation blocks are arranged in the middle of the outer circumference of the cylinder along the axial lead direction, and a plurality of blind holes reaching the heat dissipation blocks in depth are formed in the inner side wall of each channel at the same height as the heat dissipation blocks; and the pressing plate is arranged on the outer circumference between the external thread of the cylinder and the radiating block. The screw rod has the function of connection locking, and also has the function of volatilizing out the heat generated by the connected heating piece during working.

Description

Screw rod with heat dissipation function and assembly method

Technical Field

The invention relates to a screw rod with a heat dissipation function and an assembly method, and is particularly suitable for the field of laser plate making and/or laser direct imaging.

Background

Bolts are commonly used as connecting members for connecting a plurality of connected members together. In some cases, the connected piece generates heat during operation, and if the heat is not discharged, the service life of the connected piece is reduced.

In the field of laser platemaking and/or laser direct imaging, it is necessary to expose a photosensitive film to an image stored in a computer by simultaneously using a plurality of lasers. Referring to fig. 1, as one of the mounting manners, a plurality of lasers 1 are horizontally mounted in a row on a mount 2, and the mount 2 reciprocates along a broad side of the mount 2 under the control of a control system (not shown). The lasers 1 generate heat during operation, and if the heat is not discharged in time, the service life of the lasers is reduced.

Disclosure of Invention

The invention discloses a screw rod with a heat dissipation function, and aims to solve the problem of service life reduction caused by untimely heat generated in the use process of a heating part.

The scheme of the invention is as follows:

a screw rod with a heat dissipation function is made of a heat conduction material and comprises:

the outer circumference of one end part of the cylinder is provided with an external thread, at least two channels with two through ends are arranged in the axial lead direction of the cylinder, and the at least two channels are mutually communicated by arranging a plurality of through holes;

the heat dissipation blocks are arranged in the middle of the outer circumference of the cylinder along the axial lead direction, and a plurality of blind holes reaching the heat dissipation blocks in depth are formed in the inner side wall of each channel at the same height as the heat dissipation blocks;

and the pressing plate is arranged on the outer circumference between the external thread of the cylinder and the radiating block.

Further, the heat dissipation block is an annular plate.

Furthermore, a plurality of notch grooves are formed in each annular plate, the notch grooves are uniformly arranged in an annular array, an opening of each notch groove faces outwards, and the depth of each notch groove is equal to the thickness of the annular plate.

Further, the pressure plate is an annular pressure plate.

Further, the outer diameter of the annular pressure plate is larger than the outer diameter of the annular plate.

Further, a flat block for clamping by a clamping tool is arranged at the end part of the other end of the screw rod opposite to the external thread.

Furthermore, an air extractor is arranged on the flat block and is connected with the two channels through two air extracting pipes.

Further, the through holes are inclined holes.

The invention also discloses an assembly method of the screw rod with the heat dissipation function, which comprises the following steps:

the external thread end of the screw rod is screwed into the internal thread hole on the mounting seat after penetrating through the heating element;

and clamping the flat block of the screw rod by using a clamping tool and rotating the flat block so that the lower end of the pressing plate of the screw rod is tightly attached to the upper end face of the heating piece and the heating piece is fixed on the mounting seat.

Further, the clamping tool includes: the cylinder pole, the one end of cylinder pole be provided with the recess of flat piece looks adaptation, the other end is provided with the regular hexagon cylinder that supplies the spanner centre gripping.

Further, the heating member is a laser.

The screw rod that possesses heat dissipation function in this application possesses following technological effect: the external thread is arranged at one end of the screw rod, so that the screw rod has the common assembling and locking functions of the screw rod; the screw rod is characterized in that at least two channels with two communicated ends are arranged in the direction of an axial lead of a cylinder of the screw rod, a plurality of through holes are arranged between the two channels with two communicated ends and communicated with each other, a plurality of radiating blocks are arranged on the circumference of the outer side of the cylinder, and a plurality of blind holes are arranged on the inner side wall of each channel and at the positions with the same height as the plurality of layers of radiating blocks. The channel and the blind hole can convey heat to the radiating blocks quickly, so that the heat volatilization speed is increased, and the service life of the heating part is prolonged. In addition, the screw rod is further optimized in structure, namely a plurality of notch grooves are uniformly distributed on each layer of radiating block, and heat volatilization can be accelerated. In addition, an air extractor is also arranged on the flat block on the screw rod, and the heat volatilization can be accelerated by extracting air from the channel by using the air extractor. Therefore, the screw rod disclosed by the invention not only has the function of connection locking, but also can volatilize the heat generated by the connected heating piece, and is beneficial to prolonging the service life of the heating piece.

The assembly method disclosed by the invention has the technical effects that: utilize the clamping instrument to pass the screw rod that has the heat dissipation function and fix on the mount pad after generating heat for the screw rod with generate heat a full contact, in order to make things convenient for the heat that will generate heat a production to volatilize away through the screw rod, improve the life who generates heat a.

Drawings

FIG. 1 is a schematic structural diagram of a plurality of heating elements 1 arranged on a mounting base 2 in a row;

fig. 2 is an isometric view of the screw 3;

FIG. 3 is a full sectional view taken along section C-C of FIG. 2;

fig. 4 is a partial sectional view of the screw 3 fixing the heat generating member 2 to the mount 2;

FIG. 5 is an enlarged view of a portion of FIG. 3 at A;

FIG. 6 is a partial enlarged view of FIG. 3 at B;

figure 7 is an isometric view of the clamping tool 4;

FIG. 8 is a full sectional view taken along section K-K of FIG. 2;

fig. 9 is a full sectional view taken along section P-P in fig. 2.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used merely to describe differences and are not intended to indicate or imply relative importance, and moreover, unless explicitly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 2 and 3, the screw 3 with heat dissipation function of the present invention is made of heat conductive material, and includes a cylinder 31, and an external thread 32 is provided on an outer circumference of one end of the cylinder 31. At least two through-going channels 34, exemplarily two channels 34 in fig. 2 and 3, are provided in the direction of the axis 33 of the cylinder. On the outside of the middle of the cylinder 31, a number of heat dissipating blocks 35 are provided. Referring to fig. 3 and 6, the two channels 34 are interconnected by providing a plurality of through holes 310, and referring to fig. 3 and 5, on the inner side wall of each channel 34, a plurality of blind holes 36 reaching the heat dissipation block 35 in depth are provided. Referring to fig. 2 and 3, on the outer circumference between the external thread 32 of the cylinder 31 and the heat radiation block 35, a pressing plate 37 is provided. Referring to fig. 4, the end of the external thread 32 of the screw 3 passes through the circular hole 10 of the heat generating member 1, is screwed into the internal thread hole 21 of the mounting seat 2, and is clamped by the clamping tool 4 shown in fig. 7 to rotate, so as to fix the heat generating member 1 on the mounting seat 2. The heating member 1 generates heat when operating, and because the upper end face of the heating member 1 contacts with the lower end face of the pressing plate 37, and the pressing plate 37 is made of a heat conductive material, the heat generated by the heating member 1 enters the two channels 34 through two ways: (1) most of the heat generated by the heating element 1 is transmitted to the pressing plate 37 through the upper end surface of the heating element 1, and then enters the lower ends of the two channels 34 through the pressing plate 37; (2) a small portion of the heat generated from the heat generating member 1 enters the external thread 32 through the circular hole 10 and then enters the two passages 34 through the external thread 32. Part of the heat entering the two channels can upwards flow to the upper end openings of the two channels 34 along the respective channels, and can also upwards volatilize to the other channel through the plurality of through holes 310 and then flow to the upper end opening, that is, the heat volatilized from the upper end of each channel 34 comes from the other channel besides the channel, which undoubtedly increases the path length of the heat flowing to the upper end openings of the two channels and improves the volatilization speed of the heat; another portion of the heat entering the two channels flows through the blind holes 36 to the heat-dissipating blocks 35. In the present application, the plurality of through holes 310 in fig. 3 and 6 may be arranged horizontally, or may be arranged obliquely as shown in fig. 3 and 6. Preferably, the through holes 310 are obliquely arranged on the cylinder 31 between the two channels, and the through holes 310 are obliquely arranged because heat is more easily volatilized upwards, and the heat is accelerated to flow upwards. In addition, the blind holes 36 provided in fig. 3 and 5 allow the heat in the two channels 34 to flow rapidly toward the heat dissipation block 35. Referring to fig. 2, since the heat dissipation block 35 has a large surface area at the upper end, the lower end and the outer peripheral side, the heat dissipation effect is good, and thus, the heat generated by the heat generating member 1 can be quickly volatilized, and the service life of the heat generating member 1 is prolonged. It should be noted that the cylindrical body 31, the heat radiation block 35, and the pressure plate 37 are made of materials having good heat conductivity. The cylinder 31, the heat dissipation blocks 35 and the pressure plate 37 are preferably integrally formed of the same heat conductive material, but in order to save materials, a plurality of heat dissipation blocks may be fabricated and then welded to the cylinder 31.

As an example, in order to achieve a better heat dissipation effect, the plurality of heat dissipation blocks 35 in fig. 2 and 3 are uniformly distributed on the outer circumference of the cylinder 31 from top to bottom, and the plurality of heat dissipation blocks 35 and the cylinder 31 are integrally formed or the plurality of heat dissipation blocks 35 are all welded and fixed on the cylinder 31. Since the upper, lower and outer peripheral sides of the heat dissipating block 35 have relatively large heat dissipating areas, the provision of the annular plate accelerates the heat volatilization process in the passage 34. Referring to fig. 2 and 8, for any layer of the heat dissipation block 35, the blind holes 36 are disposed at positions extending horizontally from the inner side walls of the two channels 34 to the heat dissipation block 35, so as to facilitate rapid transfer of heat in the two channels 34 to the heat dissipation block 35. Referring to fig. 8, the blind holes 36 on the heat dissipation block 35 in the same layer may be distributed in a semi-circular manner around the center of each channel 34, or may be distributed in other forms, which is not limited herein. Since the annular plate is only one example of the shape of the heatslug, it will be appreciated that the depth of each blind hole 36 is designed to reach their respective heatslug. By correspondence, it is meant that the height of the blind holes in each layer in the channel 34 is the same as the height of the slug, i.e., the slug and the blind holes 36 reaching the depth of the slug are in the same layer. Therefore, it can be understood that the cross-sectional view of the heat dissipation block 35 of each layer in fig. 2 is identical to the cross-sectional view along the K-K plane shown in fig. 8, i.e., the heat dissipation blocks of each layer are distributed with blind holes as shown in fig. 8. Because the plurality of layers of the heat dissipation blocks 35 are arranged on the circumference of the outer side of the middle part of the cylinder 31, and a plurality of blind holes 36 are distributed on each layer of the heat dissipation block, the speed of the heat in the two channels 34 volatilizing to the plurality of layers of the heat dissipation blocks 35 through the blind holes 36 is greatly improved.

The heat dissipation block 35 in the present application is preferably an annular plate that conforms to the outer shape of the cylinder 31, see fig. 2.

In order to further improve the heat dissipation effect of the screw, as a further improvement, referring to fig. 2 and 9, when one embodiment of the heat dissipation block is a ring plate, a plurality of notch grooves 351 are annularly and uniformly distributed on each ring plate by taking the circle center o of the ring plate as the center, the opening of each notch groove faces outwards, and the depth of each notch groove 351 is the same as the thickness of the ring plate, that is, the upper end and the lower end of each notch groove 351 reach the upper end face and the lower end face of the ring plate respectively. It should be noted that fig. 2 only shows a part of the notch grooves 351 on one of the ring plates, and the notch grooves 351 on the remaining ring plates are not shown. Since the notch grooves 351 are uniformly distributed on the annular plate of each layer, it can be understood that the heat dissipation area of the annular plate is increased, and the heat dissipation effect is greatly enhanced.

Further, one embodiment of the pressure plate 37 in fig. 2 and 3 is an annular pressure plate that is configured to conform to the outer shape of the cylindrical body 31. Moreover, the design of the pressure plate 37 as an annular pressure plate also facilitates machining. It will be appreciated that the pressure plate 37, cylinder 31 and heat slug 35 are preferably integrally formed.

Further, in order to increase the contact surface between the pressing plate 37 and the heat generating member 1, in the case that the pressing plate 37 is an annular pressing plate, the outer diameter of the annular pressing plate is increased, that is, the outer diameter of the annular pressing plate is set to be larger than that of the annular plate, so that the contact surface between the annular pressing plate and the heat generating member 1 is also increased, thereby accelerating the volatilization of heat generated by the heat generating member 1.

In order to facilitate the screwing of the screw rod 3 into the internally threaded hole 21 of the mounting seat 2 in fig. 4, a flat block 38 to be clamped by the clamping tool 4 shown in fig. 7 needs to be arranged at the end of the screw rod 3 opposite to the external thread 32. After the clamping tool 4 clamps the flat block 38, the clamping tool 4 is rotated, the clamping tool 4 drives the flat block 38 to rotate, and the screw 3 can be screwed into the inner threaded hole 21, so that the lower end face of the pressing plate 37 is contacted with the upper end face of the heating part 1; or the screw 3 is screwed out of the internally threaded hole 21.

In order to accelerate the removal of heat from the channels 34, as a further improvement, see fig. 3 and 6, it is also possible to provide a suction device 39 on the flat block 38, the suction device 39 being connected to the two channels 34 by two suction pipes 391. The air extractor 39 is started, and the air extractor 39 rapidly extracts the air in the two channels 34, so that the rapid upward volatilization of the heat generated by the heat generating component 1 in fig. 4 is accelerated.

The heat conductive material mentioned in the present application is preferably brass, because brass has good heat dissipation properties.

It should be noted that the number of the passages 34 in the present application is only exemplary, and the number of the passages 34 may be increased within the allowable range of the screw diameter, and is not limited herein.

The screw rod that possesses heat dissipation function in this application possesses following technological effect: because the external thread is arranged at one end of the screw, the screw has the function of a common screw; at least two channels with two communicated ends are arranged along the axial lead direction of a cylinder of the screw, a plurality of through holes are arranged between the two channels and communicated with each other, a plurality of radiating blocks are arranged on the circumference of the outer side of the cylinder, and a plurality of blind holes are arranged on the inner side wall of each channel and at the positions with the same height as the radiating blocks of a plurality of layers. The setting of passageway, through-hole and blind hole can improve the volatile speed of heat, is favorable to improving the life who generates heat. In addition, the screw rod is further optimized in structure, namely a plurality of notch grooves are uniformly distributed on each layer of radiating block, and heat volatilization can be accelerated. In addition, an air extractor is also arranged on the flat block at the other end of the screw rod opposite to the external thread, and the heat volatilization can be accelerated by extracting air from the channel by using the air extractor. Therefore, the screw rod disclosed by the invention not only has the function of connection locking, but also can volatilize the heat generated by the connected heating piece, and is beneficial to prolonging the service life of the heating piece.

As one example, one application field of the heat generating member in the present application is a laser used in laser platemaking and/or laser direct imaging. It is understood that the screw of the present application can be used in other fields, and is not limited herein.

the external thread end of the screw rod penetrates through the heating element and then is inserted into the internal thread hole on the mounting seat;

and clamping the flat block of the screw rod by using a clamping tool and rotating the screw rod so that the lower end of the annular pressure plate of the screw rod is tightly attached to the upper end face of the heating part and the heating part is fixed on the mounting seat.

Referring to fig. 4 and 2, the end of the screw rod 3 having the external thread 34 is inserted into the circular hole 10 of the heat generating member 1, the flat block 38 of the screw rod 3 is clamped by the clamping tool 4 shown in fig. 7, the screw rod 3 is rotated so that the lower end of the pressing plate 37 is pressed against the upper surface of the heat generating member 1, and the heat generating member 1 is fixed to the mounting base 2. Referring to fig. 7, as an example, the clamping tool 4 includes a cylindrical rod 41, a groove 42 adapted to the flat block 38 is provided at one end of the cylindrical rod 41, and a regular hexagonal cylinder 43 for clamping with a wrench is provided at the other end. It will be appreciated that where flat block 38 is a non-standard component, recess 42 is also a non-standard component, and the design specifications of regular hexagonal cylinder 43 for holding a wrench need to meet the relevant specifications of the wrench.

Through the assembling method, the screw rod 3 with the heat dissipation function is fixed on the mounting seat 2 after penetrating through the heating part 1 by the clamping tool 4, so that the screw rod 3 and the heating part 1 are in full contact, the heat generated by the heating part 1 is conveniently volatilized through the screw rod 3, and the service life of the heating part is prolonged.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a screw rod that possesses heat dissipation function, is made by the heat conduction material, its characterized in that includes:

the device comprises a cylinder, wherein an external thread is arranged on the outer circumference of one end part of the cylinder, at least two channels with two through ends are arranged in the axial lead direction of the cylinder, and the at least two channels are mutually communicated through a plurality of through holes;

the heat dissipation blocks are arranged in the middle of the outer circumference of the cylinder along the axial lead direction, and a plurality of blind holes reaching the heat dissipation blocks in depth are formed in the inner side wall of each channel, which is at the same height as the heat dissipation blocks;

2. The screw of claim 1, wherein the heat sink block is an annular plate.

3. The screw of claim 2, wherein a plurality of relief slots are provided in each of said annular plates, said plurality of relief slots being arranged in an annular uniform array, each of said relief slots having an outward opening, said relief slots having a depth corresponding to the thickness of said annular plates.

4. The screw of claim 2, wherein the pressure plate is an annular pressure plate.

5. The screw of claim 4, said annular pressure plate having an outer diameter greater than an outer diameter of said annular plate.

6. The screw of claim 1, wherein a flat piece for holding a clamping tool is provided at the end of the screw opposite to the external thread.

7. Screw according to claim 6, characterised in that an air suction device is provided on the flat block, said air suction device being connected to the two channels by means of two suction pipes.

8. The screw of any one of claims 1 to 7, wherein the plurality of through holes are angled holes.

9. The assembling method of the screw rod with the heat dissipation function is characterized by comprising the following steps of:

and clamping the flat block of the screw rod by using a clamping tool and rotating the flat block so as to enable the lower end of the pressing plate of the screw rod to be tightly attached to the upper end face of the heating piece and fix the heating piece on the mounting seat.

10. An assembly method according to claim 9, wherein the clamping tool comprises: the one end of cylinder pole be provided with the recess of flat piece looks adaptation, the other end is provided with the regular hexagon cylinder that supplies spanner centre gripping.

11. An assembly method according to claim 9 or 10, wherein the heat generating member is a laser.