Broadband power divider with heat dissipation function
By designing a tapered and dilated heat dissipation channel in the broadband power splitter, the problem of poor heat dissipation effect in the prior art is solved, and more efficient heat dissipation and longer service life are achieved.
Patent Information
- Application Number
- CN202421301288.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-07
- Publication Date
- 2025-03-07
- Estimated Expiration
- 2034-06-07
AI Technical Summary
The existing broadband power divider has a single heat dissipation structure, resulting in poor heat dissipation effect, which may lead to degradation of device performance, reduced reliability and damage.
A broadband power divider shell with a tapered and dilated heat dissipation channel is designed. The tapered and dilated heat dissipation channel is formed by combining the inner ribs with the shell and partition, which enhances the convection heat exchange effect between the air and the passage wall, and reduces the entry of dust and impurities through the filter.
It improves the heat dissipation effect of the broadband power splitter, enhances the heat exchange performance, extends the service life of the device, and meets the heat dissipation needs in high-power application scenarios.
Smart Images
Figure CN222581476U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of broadband power dividers, in particular to a broadband power divider with a heat dissipation function. Background Art
[0002] With the continuous development of electronic technology, broadband power dividers are increasingly used in various communication, radar and other systems. However, during its operation, signal transmission, power distribution and other processes will generate a certain amount of heat. If the heat cannot be dissipated in a timely and effective manner, it may lead to device performance degradation, reduced reliability and even damage.
[0003] Specifically, broadband power dividers usually need to process signals within a wide frequency range, which may result in relatively large power losses and, in turn, generate more heat. Moreover, in some high-power application scenarios, the heat generation is more significant.
[0004] Traditional heat dissipation methods may be inefficient and unable to meet the heat dissipation requirements of broadband power dividers in specific application scenarios, for example, unreasonable heat dissipation structure design.
[0005] In order to meet these challenges, it is urgent to develop a new broadband power divider with heat dissipation function to reduce the risks caused by poor heat dissipation, to ensure that the broadband power divider can maintain good performance and stability under different working conditions, to extend its service life, and to meet increasingly demanding application requirements. Utility Model Content
[0006] The utility model aims to provide a broadband power divider with heat dissipation function, so as to solve the problem that the heat dissipation structure of the broadband power divider shell is single and the heat dissipation effect is poor in the prior art.
[0007] The utility model is realized by the following technical solutions:
[0008] A broadband power divider with a heat dissipation function comprises a broadband power divider shell, wherein a partition is arranged inside the broadband power divider shell, and the partition and the inner side of the lower surface of the broadband power divider shell form a heat dissipation channel; at least one inner rib is arranged inside the heat dissipation channel to form a gradually converging and expanding heat dissipation channel, and the inner rib connects the front and rear sides of the broadband power divider shell; the partition is provided with at least one heat dissipation hole connecting a cavity and the gradually converging and expanding heat dissipation channel, and a filter is arranged at the heat dissipation hole, so as to achieve a dustproof effect and effectively reduce dust and impurities from entering the broadband power divider shell and affecting the normal operation of the broadband power divider.
[0009] The two sides of the gradually converging and expanding heat dissipation channel pass through the symmetrical sides of the broadband power divider housing. The inner fins are divided into three parts: the inner fin head, the inner fin waist, and the inner fin tail. The inner fin head and the inner side of the partition or the inner side of the lower surface of the broadband power divider housing form the converging part of the gradually converging and expanding heat dissipation channel. When the airflow passes through the converging part, the airflow velocity increases and the air pressure decreases, thereby improving the convective heat transfer coefficient between the air and the wall surface of the gradually converging and expanding heat dissipation channel and the inner fins, thereby enhancing the heat exchange effect; the inner fin waist and the inner side of the partition or the inner side of the lower surface of the broadband power divider housing form the throat of the gradually converging and expanding heat dissipation channel, and the inner fin tail and the inner side of the partition or the inner side of the lower surface of the broadband power divider housing form the gradually expanding part of the gradually converging and expanding heat dissipation channel. When the airflow passes through the gradually expanding part, the air pressure increases, thereby enhancing heat dissipation and facilitating smoother heat release.
[0010] Furthermore, the cross-sectional area of the tapered part of the tapered and expanding heat dissipation channel gradually decreases along the direction from the head of the inner fin to the waist of the inner fin; the cross-sectional area of the expanding part of the tapered and expanding heat dissipation channel gradually increases along the direction from the waist of the inner fin to the tail of the inner fin; the ports on both sides of the throat of the tapered and expanding heat dissipation channel are the same size as the small-diameter ports of the tapered part and the expanding part.
[0011] Furthermore, the head of the inner fin or the tail of the inner fin is convex outwardly in a direction away from the waist of the inner fin, so that the inner fin constructs the heat dissipation channel as a gradually contracting and expanding heat dissipation channel.
[0012] Specifically, the cross section of the connection between the inner fin and the housing of the broadband power divider is hexagonal.
[0013] Furthermore, the broadband power divider housing and the inner fins are integrally formed.
[0014] Furthermore, the broadband power divider housing and the partition are integrally formed.
[0015] Furthermore, the broadband power divider housing, the partition and the inner fins are made of metal aluminum or metal copper.
[0016] Compared with the prior art, the utility model has the following advantages and beneficial effects:
[0017] The utility model discloses a broadband power divider with heat dissipation function, wherein the inner fins form a gradually contracting and expanding heat dissipation channel between the inner side of the lower surface of the broadband power divider shell and the partition, the inner fin head and the inner side of the partition or the inner side of the lower surface of the broadband power divider shell form the contracting part of the gradually contracting and expanding heat dissipation channel, the cross-sectional area of the contracting part of the gradually contracting and expanding heat dissipation channel gradually decreases along the direction from the inner fin head to the inner fin waist, when the airflow passes through the contracting part, the airflow speed increases, the air pressure decreases, the convection heat transfer coefficient between the air and the wall surface of the gradually contracting and expanding heat dissipation channel and the inner fins is improved, and the heat exchange effect is enhanced; the inner fin waist and the inner side of the partition or the inner side of the lower surface of the broadband power divider shell form the throat of the gradually contracting and expanding heat dissipation channel, The ports on both sides of the throat of the gradually converging and expanding heat dissipation channel are the same size as the small-diameter ports of the gradually converging part and the gradually expanding part; the tail of the inner fin and the inner side of the partition or the inner side of the lower surface of the broadband power divider shell form the gradually expanding part of the gradually converging and expanding heat dissipation channel, and the cross-sectional area of the gradually expanding part of the gradually converging and expanding heat dissipation channel gradually increases along the direction from the waist of the inner fin to the tail of the inner fin. When the airflow passes through the gradually expanding part, the air pressure increases, the heat dissipation is enhanced, and it is helpful to release the heat more smoothly; the broadband power divider shell, the partition and the inner fins are made of metal aluminum or metal copper, which has good thermal conductivity, can quickly absorb the heat generated by the internal components of the broadband power divider shell, and then exchange heat with the outside world, so as to further achieve the heat dissipation effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] The drawings described herein are used to provide a further understanding of the embodiments of the present utility model, constitute a part of this application, and do not constitute a limitation of the embodiments of the present utility model. In the drawings:
[0019] Figure 1 The utility model is a schematic structural diagram of a broadband power divider with heat dissipation function.
[0020] Figure 2 It is a schematic diagram of the bottom cross-section of the utility model along the ab direction.
[0021] Figure 3-4 It is a side structural schematic diagram of the utility model.
[0022] Figure 5 for Figure 1 Enlarged view of the K part.
[0023] Figure 6 It is a structural schematic diagram of a gradually shrinking and expanding heat dissipation channel.
[0024] Marks and corresponding parts names in the attached drawings:
[0025] 1- broadband power divider housing, 2- inner fins, 201- inner fin head, 202- inner fin waist, 203- inner fin tail, 3- filter, 4- gradually converging and expanding heat dissipation channel, 401- gradually converging part, 402- throat, 403- gradually expanding part, 5- partition. DETAILED DESCRIPTION
[0026] In order to make the purpose, technical solutions and advantages of the utility model more clearly understood, the utility model is further described in detail below in conjunction with embodiments and drawings. The schematic implementation manner of the utility model and its description are only used to explain the utility model and are not intended to limit the utility model.
[0027] Example 1
[0028] like Figure 1-Figure 4 As shown, the utility model is a broadband power divider with a heat dissipation function, comprising a broadband power divider housing 1, a partition 5 is provided inside the broadband power divider housing 1, and the partition 5 and the inner side of the lower surface of the broadband power divider housing 1 form a heat dissipation channel; at least one inner rib 2 is provided inside the heat dissipation channel to form a gradually converging and expanding heat dissipation channel 4, and the inner rib 2 connects the front and rear sides of the broadband power divider housing 1; the partition 5 is provided with at least one heat dissipation hole connecting the cavity and the gradually converging and expanding heat dissipation channel 4, and a filter 3 is provided at the heat dissipation hole, which has a dust-proof effect and effectively reduces dust and impurities from entering the broadband power divider housing 1 and affecting the normal operation of the broadband power divider.
[0029] refer to Figure 5-Figure 6 The two sides of the gradually contracting and expanding heat dissipation channel 4 pass through the symmetrical sides of the broadband power divider housing 1. The inner fin 2 is divided into three parts: the inner fin head 201, the inner fin waist 202, and the inner fin tail 203. The inner fin head 201 and the inner side of the partition 5 or the inner side of the lower surface of the broadband power divider housing 1 form the gradually contracting and expanding heat dissipation channel 4. When the airflow passes through the gradually contracting part 401, the airflow speed increases and the air pressure decreases, thereby improving the air and the gradually contracting and expanding heat dissipation channel wall. The convection heat transfer coefficient between the surface and the inner fins is enhanced to enhance the heat exchange effect; the inner fin waist 202 and the inner side of the partition 5 or the inner side of the lower surface of the broadband power divider housing 1 form the throat 402 of the gradually converging and expanding heat dissipation channel 4; the inner fin tail 203 and the inner side of the partition 5 or the inner side of the lower surface of the broadband power divider housing 1 form the gradually expanding part 403 of the gradually converging and expanding heat dissipation channel 4, when the airflow passes through the gradually expanding part 403, the air pressure increases, the heat dissipation is enhanced, and it is helpful to release the heat more smoothly.
[0030] Furthermore, the cross-sectional area of the tapered portion 401 of the tapered and gradually expanding heat dissipation channel 4 gradually decreases along the direction from the inner fin head 201 to the inner fin waist 202; the cross-sectional area of the gradually expanding portion 403 of the tapered and gradually expanding heat dissipation channel 4 gradually increases along the direction from the inner fin waist 202 to the inner fin tail 203; the ports on both sides of the throat 402 of the tapered and gradually expanding heat dissipation channel 4 are the same size as the small-diameter ports of the tapered portion 401 and the gradually expanding portion 403.
[0031] Furthermore, the inner fin head 201 or the inner fin tail 203 is convex outwardly away from the inner fin waist 202 , so that the inner fin 2 constructs the heat dissipation channel into a gradually contracting and expanding heat dissipation channel 4 .
[0032] Specifically, the cross section of the connection between the inner fin 2 and the broadband power divider housing 1 is hexagonal.
[0033] Furthermore, the broadband power divider housing 1 and the inner fins 2 are integrally formed.
[0034] Furthermore, the broadband power divider housing 1 and the partition plate 5 are integrally formed.
[0035] Furthermore, the broadband power divider housing 1, the partition plate 5 and the inner fins 2 are made of metal aluminum or metal copper.
[0036] The method of using the utility model is:
[0037] The input port and output port of the broadband power divider are connected to ensure the normal operation of the broadband power divider. Due to the signal transmission, power distribution and the like, a certain amount of heat is generated. The heat is accumulated in the broadband power divider and transferred to the heat dissipation channel through the filter or a part of it is conducted to the housing of the broadband power divider. The natural airflow enters from the a end of the gradually contracting and expanding heat dissipation channel, passes through the gradually contracting part first, the airflow speed is increased, the air pressure is reduced, the convection heat transfer coefficient between the natural airflow and the wall surface of the gradually contracting and expanding heat dissipation channel and the inner fins is improved, and the heat exchange effect is enhanced; then the natural airflow flows from the throat of the gradually contracting and expanding heat dissipation channel to the gradually expanding part. When flowing through the throat, the natural airflow further exchanges heat with the wall surface of the gradually contracting and expanding heat dissipation channel and the inner fins, and at the same time, the heat in the broadband power divider cavity is further transferred to the gradually contracting and expanding heat dissipation channel through the filter and taken away; at the gradually expanding part, the natural airflow speed is reduced, the air pressure is increased, and the heat is dissipated more strongly, so that the heat dissipation effect is further improved; finally, the natural airflow is discharged from the b end of the gradually contracting and expanding heat dissipation channel.
[0038] The specific implementation methods described above further illustrate the purpose, technical solutions and beneficial effects of the utility model in detail. It should be understood that the above description is only the specific implementation method of the utility model and is not used to limit the protection scope of the utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the utility model should be included in the protection scope of the utility model.
Claims
1. A broadband power divider with heat dissipation function, comprising a broadband power divider housing (1), characterized in that: A partition (5) is provided inside the broadband power divider housing (1), and the partition (5) and the inner side of the lower surface of the broadband power divider housing (1) form a heat dissipation channel; at least N inner fins (2) are provided inside the heat dissipation channel to form a gradually converging and expanding heat dissipation channel (4), and the inner fins (2) connect the front and rear sides of the broadband power divider housing (1); the partition (5) is provided with at least one heat dissipation hole connecting the cavity and the gradually converging and expanding heat dissipation channel (4), and a filter (3) is provided at the heat dissipation hole; The two sides of the gradually contracting and gradually expanding heat dissipation channel (4) penetrate the symmetrical sides of the broadband power divider housing (1); the inner fin (2) is divided into three parts: an inner fin head (201), an inner fin waist (202), and an inner fin tail (203); the inner fin head (201) and the inner side of the partition (5) or the inner side of the lower surface of the broadband power divider housing (1) form a gradually contracting part (401) of the gradually contracting and gradually expanding heat dissipation channel (4); the inner fin waist (202) and the inner side of the partition (5) or the inner side of the lower surface of the broadband power divider housing (1) form a throat (402) of the gradually contracting and gradually expanding heat dissipation channel (4); and the inner fin tail (203) and the inner side of the partition (5) or the inner side of the lower surface of the broadband power divider housing (1) form a gradually expanding part (403) of the gradually contracting and gradually expanding heat dissipation channel (4).
2. The broadband power divider with heat dissipation function according to claim 1, characterized in that: The cross-sectional area of the tapered portion (401) of the tapered and gradually expanding heat dissipation channel (4) gradually decreases along the direction from the inner fin head (201) to the inner fin waist (202); the cross-sectional area of the gradually expanding portion (403) of the tapered and gradually expanding heat dissipation channel (4) gradually increases along the direction from the inner fin waist (202) to the inner fin tail (203); and the ports on both sides of the throat (402) of the tapered and gradually expanding heat dissipation channel (4) are the same size as the small-diameter ports of the tapered portion (401) and the gradually expanding portion (403).
3. The broadband power divider with heat dissipation function according to claim 1, characterized in that: The inner fin head (201) or the inner fin tail (203) is convex outwardly in a direction away from the inner fin waist (202).
4. The broadband power divider with heat dissipation function according to claim 3, characterized in that: The cross section of the connection between the inner fin (2) and the broadband power divider housing (1) is hexagonal.
5. The broadband power divider with heat dissipation function according to claim 1, characterized in that: The broadband power divider housing (1) and the inner fins (2) are integrally formed.
6. The broadband power divider with heat dissipation function according to claim 1, characterized in that: The broadband power divider housing (1) and the partition plate (5) are integrally formed.
7. The broadband power divider with heat dissipation function according to claim 1, characterized in that: The broadband power divider housing (1), the partition plate (5) and the inner fins (2) are made of metal aluminum or metal copper.