Convenient reflow soldering device for dielectric waveguide filter module

Abstract

The utility model discloses a convenient reflow soldering device for a dielectric waveguide filter module, which comprises a bottom plate with heat dissipation holes, the bottom of the bottom plate is provided with a cushion block made of synthetic stone, and the bottom plate is provided with a material placing groove for placing a product; a cover plate is arranged above the bottom plate, and the cover plate and the bottom plate are locked through a magnetic assembly; the cover plate is provided with a crimping hole, a crimping plate is arranged above the cover plate, the crimping plate is provided with a joint, and the joint is inserted into the crimping hole and acts on a product. The cover plate and the bottom plate are fixed in a magnetic attraction mode, the problems caused by existing screw locking are solved, and the dismounting and mounting efficiency of the device can be improved. The welding smoothness is guaranteed through the bottom plate and the cushion blocks made of the synthetic stone, sufficient heat dissipation holes are dug in the device, and the working efficiency is improved through the strong magnets.

Description

Technical Field

[0001] The utility model belongs to the field of filters and relates to a convenient reflow soldering device for a dielectric waveguide filter module. Background Art

[0002] A filter is a frequency-selective device that allows a specific signal frequency to pass through and attenuates other frequency signals. Filters come in a variety of forms, and dielectric waveguide filter modules are one of them. Usually, dielectric waveguide filters are soldered using reflow soldering (reflow soldering is a process of soldering that remelts the paste solder pre-distributed to the pads of the printed circuit board to achieve mechanical and electrical connection between the solder ends or pins of surface mounted components and the pads of the printed circuit board).

[0003] The welding device of the dielectric waveguide filter module must have 1: Welding firmness. The welding must be firm to ensure that the solder paste in the welding equipment is heated to the melting temperature for a certain period of time to ensure reliable welding. 2: Accuracy. To ensure that there is enough solder paste in the places where the dielectric waveguide filter module needs to be welded, the welding device must be accurately positioned. 3: Flatness. The device must not deform when heated in the furnace and considering that sufficient temperature must be transmitted to the dielectric waveguide filter module to melt the solder paste, the device cannot use materials with strong heat absorption. 4: High efficiency. After the device is welded, it is easy and quick to disassemble and install after replacing one product, which reduces working hours and indirectly reduces product costs, making the product more competitive in the market.

[0004] Currently, the dielectric waveguide filter module welding devices on the market are mostly realized by using all-aluminum block machining devices and screw locking and disassembly welding devices, which have the following problems:

[0005] 1. Insufficient heat dissipation. The heat in the furnace is absorbed by the device, resulting in the product welding area not receiving enough heat, and the reliability of product welding cannot be guaranteed, which seriously affects the use of the product.

[0006] 2. Low efficiency. When one product is welded, it takes a lot of time to remove the screws when replacing the next product. Long-term screw removal can easily cause thread slippage or damage, making the device unusable.

[0007] Therefore, it is necessary to improve the prior art to overcome the defects in the prior art. Utility Model Content

[0008] The purpose of the utility model is to overcome the deficiencies in the prior art and provide a convenient reflow soldering device for a dielectric waveguide filter module.

[0009] The purpose of the utility model is achieved through the following technical solutions:

[0010] A convenient reflow soldering device for a dielectric waveguide filter module comprises a base plate with heat dissipation holes, a pad made of synthetic stone is arranged at the bottom of the base plate, and a material discharge trough for placing products is arranged on the base plate; a cover plate is arranged above the base plate, and the cover plate and the base plate are locked by a magnetic component; a crimping hole is arranged on the cover plate, a crimping plate is arranged above the cover plate, and a joint is arranged on the crimping plate, and the joint is inserted into the crimping hole and acts on the product.

[0011] Furthermore, a limit plate made of synthetic stone is arranged above the bottom plate, the limit plate is placed between the cover plate and the bottom plate, and the limit plate has a limit groove.

[0012] Furthermore, a first positioning column is disposed on the edge of the limiting plate, and a first positioning hole corresponding to the first positioning column is disposed on the bottom plate.

[0013] Furthermore, the cover plate and the crimping plate are both provided with a plurality of heat dissipation holes.

[0014] Furthermore, second positioning posts are provided at both ends of the crimping plate, and second positioning holes corresponding to the second positioning posts are provided on the cover plate.

[0015] Furthermore, a positioning structure is used between the cover plate and the bottom plate, and the positioning structure includes a positioning pin arranged on the bottom plate and a corresponding positioning pin hole arranged on the cover plate.

[0016] Furthermore, the magnetic component includes a strong magnetic fixing plate and a strong magnet. The strong magnetic fixing plate is provided with a slot for placing the strong magnet. The strong magnetic fixing plate is correspondingly distributed on the cover plate and the bottom plate.

[0017] Specifically, there are four groups of magnetic components, which are distributed at the four corners of the cover plate and the bottom plate.

[0018] The above technical solution has the following beneficial effects: the cover plate and the bottom plate are fixed by magnetic attraction, which solves the problems caused by the existing screw locking and improves the efficiency of disassembly and installation of the device. The bottom plate and the synthetic stone pad are used to ensure the flatness of the welding, and sufficient heat dissipation holes are dug on the device and strong magnets are used to improve work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the implementation or the prior art description. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0020] The structures, proportions, sizes, etc. illustrated in this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with the technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantial technical significance. Any structural modification, change in proportion or adjustment of size shall still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0021] Figure 1 The utility model provides a schematic diagram of the explosion structure.

[0022] Figure 2 This is a schematic diagram of the three-dimensional structure of the base plate provided by the utility model.

[0023] Figure 3 This is a schematic diagram of the exploded structure of the magnetic component provided by the utility model.

[0024] Figure 4 This is a schematic diagram of a partial three-dimensional structure provided by the utility model.

[0025] Figure 5 This is a schematic diagram of the three-dimensional structure of the utility model after assembly.

[0026] Figure 6 This is a schematic diagram of the local explosion structure provided by the utility model.

[0027] In the figure: 1-bottom plate; 11-discharging trough; 13-fourth positioning hole; 2-pad; 3-product; 31-positioning pin; 4-limiting plate; 5-cover plate; 12, 51-heat dissipation hole; 6-magnetic component; 61-strong magnetic fixing plate; 611-card slot; 62-strong magnet; 7-crimping plate. DETAILED DESCRIPTION

[0028] The specific implementation methods of the present invention are further described below in conjunction with the accompanying drawings. It should be noted that the description of these implementation methods is used to help understand the present invention, but does not constitute a limitation of the present invention. In addition, the technical features involved in each implementation method of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0029] Example

[0030] See also Figure 1-Figure 6As shown, a convenient reflow soldering device for a dielectric waveguide filter module comprises a base plate 1 having a heat dissipation hole 12, and a pad 2 made of synthetic stone is arranged at the bottom of the base plate 1. The number of the pads 2 is two and they are parallelly distributed on both sides of the base plate 1. The base plate 1 has a discharge trough 11 for placing a product 3 (dielectric waveguide filter module). A positioning pin 31 is provided below the dielectric waveguide filter module, and a fourth positioning hole 13 is provided in the discharge trough 11 for inserting the positioning pin 31. The discharge trough 11 is a contoured trough, so that the product 3 is positioned in the discharge trough 11.

[0031] A limit plate 4 made of synthetic stone is arranged above the bottom plate 1. The limit plate 4 has a limit groove. Part of the product is exposed in the limit groove, and the product is positioned again by the limit plate 2. When in use, the limit plate 4 is pressed on the product to ensure that the product is placed flat and the position accuracy ensures accurate welding.

[0032] Preferably, a first positioning column is provided at the edge of the limiting plate 4, and a first positioning hole corresponding to the first positioning column is provided on the bottom plate 1. The above structure fixes the position of the limiting plate 4 relative to the bottom plate 1, which is more conducive to limiting the product.

[0033] A cover plate 5 is arranged above the limit plate 4, and the cover plate 5 has sufficient heat dissipation holes 51. When in use, the cover plate 5 is pressed on the limit plate 4. In order to fix the cover plate 5 on the bottom plate 1, the cover plate 5 and the bottom plate 1 are locked by a magnetic component 6. The magnetic component includes a strong magnetic fixing plate 61 and a strong magnet 62, wherein the strong magnetic fixing plate 61 has a slot 611 for placing the strong magnet 62. There are screw holes on both sides of the slot 611, and the strong magnetic fixing plate 61 can be locked on the cover plate 5 and the bottom plate 1 by screws.

[0034] There are four groups of magnetic components in this embodiment, which are distributed at the four corners of the cover plate 5 and the bottom plate 1. Each group has two strong magnetic fixing plates 61, and the two strong magnetic fixing plates 61 are correspondingly distributed on the cover plate and the bottom plate.

[0035] By using the magnetic assembly of the above structure, the cover plate and the bottom plate are fixed by magnetic attraction, so as to solve the problems caused by the existing screw locking and improve the disassembly and installation efficiency of the device.

[0036] In this embodiment, a positioning structure is used between the cover plate 5 and the bottom plate 1 , and the positioning structure includes a positioning pin 14 arranged on the bottom plate 1 and a corresponding positioning pin hole arranged on the cover plate 5 .

[0037] A crimping plate 7 is provided above the cover plate 5, and the crimping plate 7 has a protruding connector. For this purpose, a crimping hole is provided on the cover plate 5 for the connector to be inserted. After assembly, the connector is inserted into the crimping hole and acts on the product. The crimping plate 7 in this embodiment also has a sufficient number of heat dissipation holes. Second positioning columns are provided at both ends of the crimping plate 7, and a second positioning hole corresponding to the second positioning column is provided on the cover plate 5. The above structure enables the crimping plate 7 to be stably installed on the cover plate 5.

[0038] The assembly steps are as follows:

[0039] The base plate 1 and the pad 2 are connected with screws, wherein the base plate 1 is aluminum 6061-T6, which has excellent heat dissipation performance and has sufficient heat dissipation holes on the base plate 1 to dissipate heat, so that enough heat acts on the product (dielectric waveguide filter module) to ensure sufficient welding. The material used for the base plate 1 can be purchased from the market, and is commonly used in heat dissipation devices, and is relatively cheap compared to other heat dissipation materials. The material of the pad 2 is synthetic stone, which is sintered by glass fiber and high-temperature resistant and high-mechanical strength resin. It has the characteristics of high temperature resistance, low thermal conductivity, low heat absorption, no solder paste, high mechanical strength and high flatness. This material has low thermal conductivity and low heat absorption. When used in this device, the product can have enough heat to ensure sufficient welding, and the surface is flat and smooth, thereby ensuring the welding flatness of the product.

[0040] Place the product (dielectric waveguide filter module) in the discharge slot of the base plate 1 and position it, and use the limit plate 4 to press on the product to ensure that the product is placed flat and the position is accurate to ensure accurate welding. The limit plate 4 is made of synthetic stone. Then, insert the strong magnet 62 into the strong magnetic fixing plate 61 and fix it on the base plate 1 and the cover plate 5 with screws in a total of 8 places. Then align the assembled cover plate 5 with the base plate 1 with the positioning pin, and use the strong magnet 62 to adsorb them together. At this point, you only need to place the joint of the crimping plate 7 on the crimping hole of the cover plate 5 to complete the assembly of the device. Among them, the crimping plate 7 acts on the joint protruding outward of the product and presses the joint tightly, thereby ensuring that the product is fully welded and can ensure the concentricity of the joint of the product with the installation position of the joint.

[0041] When replacing the welding medium (waveguide filter module) after the product is welded, it is only necessary to pick up the cover plate 6, the crimping plate 7 and the limit plate 4, and then place the next product to be welded, and then place the limit plate 4, the cover plate 6, and the crimping plate 7 in sequence for the next welding.

[0042] The utility model only describes the filter with this appearance. The appearance of products in different scenarios can be assembled and welded by changing the mounting holes of the base plate. It can be flexibly designed according to actual conditions. This convenient method of using the adsorption force of strong magnets can also be used and explored in other fields with the same ideas and materials.

[0043] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions and variations of these embodiments are made without departing from the principles and spirit of the present invention, and still fall within the scope of protection of the present invention.

Claims

1. A convenient reflow soldering device for a dielectric waveguide filter module, characterized in that: It includes a base plate with heat dissipation holes, a pad made of synthetic stone is arranged at the bottom of the base plate, and the base plate has a material discharge trough for placing products; a cover plate is arranged above the base plate, and the cover plate and the base plate are locked by a magnetic component; the cover plate has a crimping hole, a crimping plate is arranged above the cover plate, and the crimping plate has a joint, which is inserted into the crimping hole and acts on the product.

2. The convenient reflow soldering device according to claim 1, characterized in that: A limit plate made of synthetic stone is arranged above the bottom plate, the limit plate is placed between the cover plate and the bottom plate, and the limit plate has a limit groove.

3. The convenient reflow soldering device according to claim 2, characterized in that: A first positioning column is disposed on the edge of the limiting plate, and a first positioning hole corresponding to the first positioning column is disposed on the bottom plate.

4. The convenient reflow soldering device according to claim 2, characterized in that: The cover plate and the pressing plate are both provided with a plurality of heat dissipation holes.

5. The convenient reflow soldering device according to claim 4, characterized in that: Second positioning posts are arranged at both ends of the crimping plate, and second positioning holes corresponding to the second positioning posts are arranged on the cover plate.

6. The convenient reflow soldering device according to claim 2, characterized in that: A positioning structure is used between the cover plate and the bottom plate, and the positioning structure includes a positioning pin arranged on the bottom plate and a positioning pin hole correspondingly arranged on the cover plate.

7. The convenient reflow soldering device according to claim 2, characterized in that: The magnetic assembly comprises a strong magnetic fixing plate and a strong magnet. The strong magnetic fixing plate is provided with a slot for placing the strong magnet. The strong magnetic fixing plate is correspondingly distributed on the cover plate and the bottom plate from top to bottom.

8. The convenient reflow soldering device according to claim 7, characterized in that: There are four groups of magnetic components, which are distributed at the four corners of the cover plate and the bottom plate.

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