Reliable welding tool for three-head power divider

Abstract

A reliable welding tool for a three-head power divider relates to the technical field of welding tools and comprises a heat conduction pipe, a heat conductor and a heat conduction needle, and the heat conduction pipe is connected with a corresponding connector of the power divider; a heat conductor is arranged in the heat conduction pipe, and a heat conduction needle correspondingly abutting against the center needle of the connector is fixed to the head of the heat conductor; the welding tool can improve the stability of the connector in the welding process.

Description

Technical Field

[0001] The utility model relates to the technical field of welding jigs, in particular to a reliable welding jig for a three-way power divider. Background Technique

[0002] A three-way power divider generally consists of a housing, an internal transmission line, and a connector for signal interaction with external devices. Among them, the connector and the internal transmission line need to be soldered to achieve their connection and subsequent signal transmission;

[0003] However, the current welding method between the internal transmission line and the connector mainly uses a soldering iron tip to solder the transmission line and the center conductor of the connector. This welding method is not conducive to controlling the amount of solder and the indicators. In addition, due to the limited internal space of the power divider, it will affect the welding operation of the soldering iron tip and increase the operation difficulty;

[0004] In addition, since the connector used at a frequency of 67 GHz is a 1.85 mm connector and the diameter of the center conductor is only 0.23 mm, in this case, if you want to maintain excellent indicators and excellent consistency, the best way is to use a low-temperature solder paste welding method, and the welding temperature of the low-temperature solder paste is 138 °C. Therefore, the power divider is generally heated and welded as a whole through a heating table;

[0005] Traditionally, the thin-film power divider is directly placed on the heating table, and a certain amount of solder is set between the center pin of the transmission line and the connector. Then, after starting the heating table, since the center pin of the connector and the housing of the connector are insulated and supported by a PEI (polyetherimide) material, the heat exchange effect between the connector housing and the center pin is poor. Therefore, the heat between the center pin and the solder mainly depends on the heat radiation of the air in the inner cavity of the thin-film power divider to transfer heat. Therefore, the temperature of the heating table needs to be set at 200 °C during welding to completely melt the solder; however, the PEI (polyetherimide) material used for insulation support will soften and deform above 165 °C. Therefore, in an environment of 200 °C, the center pin of the connector cannot be stably fixed;

[0006] Therefore, we propose a welding jig that can provide the stability of the connector during the welding process. Content of the Utility Model

[0007] In order to overcome the deficiencies in the background technique, the utility model discloses a reliable welding jig for a three-way power divider.

[0008] To achieve the above invention purpose, the utility model adopts the following technical solutions:

[0009] A reliable welding tooling for a three - port power divider, including a heat - conducting tube, a heat - conducting body and a heat - conducting needle. The heat - conducting tube is connected to the corresponding connector of the power divider; a heat - conducting body is arranged inside the heat - conducting tube, and a heat - conducting needle corresponding to and abutting against the center pin of the connector is fixed at the head of the heat - conducting body.

[0010] Preferably, the outer wall surface of the heat - conducting tube is designed as a hexagonal structure.

[0011] Preferably, the inner wall of the heat - conducting tube and the heat - conducting body are fixedly connected.

[0012] Preferably, the inner wall of the heat - conducting tube and the heat - conducting body are movably inserted.

[0013] Preferably, a retaining ring is assembled in the middle of the heat - conducting tube. The middle part of the heat - conducting body is in clearance fit with the retaining ring, and a blocking block with a diameter larger than that of the retaining ring is fixedly arranged at the tail of the heat - conducting body.

[0014] Preferably, a plurality of installation grooves are formed on the side surface of the blocking block. A spring is fixed at the bottom of the installation groove, and a limiting block is fixedly connected to the end of the spring. A plurality of limiting grooves are arranged on the inner wall of the heat - conducting tube corresponding to the positions of the plurality of limiting blocks. A guiding hole communicating with the heat - conducting tube is arranged at the bottom of the limiting groove, and a guiding part is arranged in the guiding hole.

[0015] Preferably, the installation grooves are two symmetrical ones.

[0016] Preferably, a C - shaped snap ring is arranged on the side surface of the blocking block, and a clamping groove for clamping the C - shaped snap ring is arranged on the inner wall of the heat - conducting tube.

[0017] Due to the adoption of the above - mentioned technical solution, the utility model has the following beneficial effects:

[0018] A reliable welding tooling for a three - port power divider disclosed by the utility model

[0019] Through the heat - conducting tube and the heat - conducting body, the heat of the power - divider housing can be directly transferred to the center pin of the connector, reducing heat loss, thereby reducing the temperature setting of the heating table, and further avoiding the softening and deformation of the connector housing and the center pin due to the too high temperature of the heating table. Finally, during the welding process of the connector and the transmission line, the connector can remain stable;

[0020] In addition, the heat - conducting tube is designed with a hexagonal structure, which is not only convenient for rotation and fixation by hand or tools, but also can prevent it from sliding during the connection process, improving the convenience of operation;

[0021] In addition, the movable insertion method between the inner wall of the heat - conducting tube and the heat - conducting body makes disassembly and maintenance simpler and faster; the clearance fit between the middle part of the heat - conducting body and the retaining ring and the design of the blocking block at the tail can ensure the stable position of the heat - conducting body in the heat - conducting tube, avoiding movement or vibration during the welding process;

[0022] Since heat can be quickly transferred and concentrated at the welding point of the central pin, this helps to reduce the unnecessary heat-affected area and protect the sensitive components around the transmission line from damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic structural diagram of the present utility model;

[0024] Figure 2 It is a schematic structural diagram of the heat-conducting tube;

[0025] Figure 3 It is a schematic structural diagram of the connection with the connector;

[0026] Figure 4 It is a schematic structural diagram of the C-shaped snap ring.

[0027] In the figure: 1. Heat-conducting tube; 11. Limit hole; 12. Guide hole; 2. Heat-conducting body; 3. Heat-conducting pin; 4. Retaining ring; 5. Blocking block; 6. Spring; 7. Limit block; 8. Power divider; 9. Connector; 10. Central pin; 11. Limit groove; 12. Guide hole; 13. C-shaped snap ring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] Next, the technical solutions of the present utility model will be described in conjunction with the drawings in the embodiments of the present utility model. In the description, it should be understood that if there are terms such as "upper", "lower", "front", "rear", "left", "right", etc. indicating the orientation or positional relationship, they are only corresponding to the drawings of the present utility model for the convenience of describing the present utility model, rather than indicating or implying that the device or element referred to must have a specific orientation:

[0029] Embodiment 1 is as follows:

[0030] Combined with the attached Figures 1-4 A reliable welding tooling for a three-way power divider described above includes a heat-conducting tube 1, a heat-conducting body 2, and a heat-conducting pin 3. The heat-conducting tube 1 is connected to the corresponding connector 9 of the power divider 8; a heat-conducting body 2 is arranged inside the heat-conducting tube 1, and a heat-conducting pin 3 that correspondingly abuts against the central pin 10 of the connector 9 is fixed to the head of the heat-conducting body 2;

[0031] It is connected to the connector 9 of the power splitter 8 through the heat conduction tube 1. After the heating table works, the heat of the workbench will directly act on the outer shell of the power splitter 8, and then the heat is transferred from the outer shell of the power splitter 8 to the outer shell of the connector 9. After that, the heat is transferred to the heat conduction needle 3 by the heat conduction tube 1, and finally transferred to the center pin 10 of the connector 9 through the heat conduction needle 3. The heat will concentrate at the end of the center pin 10 to melt the solder, realizing the welding between the center pin 10 and the transmission line; during the welding process between the center pin 10 and the transmission line in the connector 9, the heat of the heating table can be quickly conducted to the center pin 10, improving the heat conduction efficiency between the heating table and the center pin 10, reducing heat loss, that is, the heating table can be set at a lower temperature to realize the welding between the center pin 10 and the transmission line, effectively avoiding the softening and deformation of the insulation support between the outer shell of the connector 9 and the center pin 10 due to too high temperature of the heating table, and the center pin 10 can thus remain stable;

[0032] It should be noted that the inner wall of the heat conduction tube 1 is provided with internal threads, and is threadedly connected to the connector 9 of the power splitter 8 through the internal threads. After the two are connected, the heat conduction needle 3 will abut against the center pin 10 and drive it to feed a certain distance.

[0033] Specifically, the outer wall surface of the heat conduction tube 1 is set as a hexagonal structure, which is similar to the shape of a hexagonal nut. It is not only convenient to rotate and fix by hand or tools, but also can prevent it from rotating during use, improving the convenience of operation.

[0034] Embodiment 2 is as follows:

[0035] On the basis of Embodiment 1, the heat conduction tube 1 is further limited. One embodiment of the heat conduction tube 1 is that the inner wall of the heat conduction tube 1 is fixedly connected to the heat conduction body 2. In this embodiment, by setting the heat conduction tube 1 and the heat conduction body 2 as an integral structure, the installation process during the use of the welding tooling can be effectively reduced, thereby improving the welding efficiency; however, since the heat conduction needle 3 and the center pin 10 of the connector 9 are elastically abutted and connected, therefore, in this embodiment, when the heat conduction tube 1 is rotationally connected to the connector 9, the rotational feeding of the heat conduction needle 3 will cause elastic deformation of the reed in the connector 9, resulting in abnormal welding between the center pin 10 and the transmission line of the connector 9 and affecting the welding effect.

[0036] Another specific embodiment of the heat conduction tube 1 is that the inner wall of the heat conduction tube 1 is movably inserted into the heat conduction body 2; in this embodiment, by setting the heat conduction tube 1 and the heat conduction body 2 as a split structure, the problem that the rotational feeding of the heat conduction needle 3 will cause elastic deformation of the reed in the connector 9 can be effectively avoided, ensuring the welding quality, but it increases the installation process during the use of the welding tooling, thereby reducing the welding efficiency to a certain extent;

[0037] It should be noted that when using this welding tooling, first connect the heat conduction tube 1 with the connector 9, then insert the heat conduction body 2 into the heat conduction tube 1, and finally start the heating table for heat conduction soldering operation.

[0038] In addition, a retaining ring 4 is assembled in the middle of the heat conduction tube 1. The middle part of the heat conduction body 2 is in clearance fit with the retaining ring 4. A blocking block 5 with a diameter larger than that of the retaining ring 4 is fixedly arranged at the tail of the heat conduction body 2. The cooperation between the retaining ring 4 and the blocking block 5 can limit the position of the heat conduction body 2, prevent the problem of excessive insertion when the heat conduction body 2 is inserted into the heat conduction tube 1, and ensure that when the heat conduction body 2 is inserted in place, the heat conduction pin 3 is in contact with the center pin 10 of the connector 9. And due to the function of the retaining ring 4, it can also reduce the diameter of the head of the heat conduction body 2 to a certain extent, so that there is a certain gap between the head of the heat conduction body 2 and the inner wall of the heat conduction tube 1. Furthermore, after the heat conduction tube 1 is threadedly connected with the connector 9, a part of the head of the heat conduction body 2 can extend into the connector 9, thereby further improving the heat conduction efficiency between the outer shell of the connector 9 and this welding tooling.

[0039] As required, a plurality of installation grooves are formed on the side surface of the blocking block 5. A spring 6 is fixedly arranged at the bottom of the installation groove. The end of the spring 6 is fixedly connected with a limiting block 7. A plurality of limiting grooves 11 are arranged on the inner wall of the heat conduction tube 1 corresponding to the positions of the plurality of limiting blocks 7. A guiding hole 12 communicating with the heat conduction tube 1 is arranged at the bottom of the limiting groove 11, and a guiding member is arranged in the guiding hole 12.

[0040] After the connection between the heat conduction tube 1 and the connector 9 is completed, insert the heat conduction body 2. At this time, first press the limiting block 7 into the installation groove. After the heat conduction body 2 is inserted in place, the limiting block 7 will also reach the position of the limiting groove 11. At this time, the limiting block 7 will enter the limiting groove 11 under the action of the spring 6, realizing the cooperation between the heat conduction body 2 and the heat conduction tube 1.

[0041] In addition, when it is necessary to withdraw the heat conduction body 2, the guiding member extends into the guiding hole 12 and correspondingly pushes the limiting block 7 back into the installation groove. At this time, the heat conduction body 2 can be smoothly withdrawn. The disassembly between the heat conduction tube 1 and the connector 9 can be carried out after the welding is completed. After the disassembly is completed, then withdraw the heat conduction body 2 from the heat conduction tube 1, or the heat conduction body 2 can be withdrawn from the heat conduction tube 1 first, and then the disassembly between the heat conduction tube 1 and the connector 9 can be carried out.

[0042] The installation grooves are arranged in two symmetrical ones. The stable connection between the heat conduction body 2 and the heat conduction tube 1 can be realized through two positioning mechanisms composed of the installation groove, the spring 6, the limiting block 7 and the limiting groove 11, so as to ensure that during the welding process, both the heat conduction tube 1 and the heat conduction body 2 are in a stable state, and further improve the welding effect between the connector 9 and the transmission line in the power divider 8.

[0043] In addition, a C-shaped snap ring 13 is provided on the side surface of the blocking block 5, and a clamping groove for clamping the C-shaped snap ring 13 is provided on the inner wall of the heat conduction tube 1. The stable connection between the heat conduction body 2 and the heat conduction tube 1 can also be achieved through the clamping connection between the C-shaped snap ring 13 and the clamping groove, and this structure is simpler.

[0044] It should be noted that the three-way power divider 8 generally has three connectors 9, and the center pins 10 of these three connectors 9 need to be welded to the transmission lines of the internal circuit of the power divider 8. Therefore, when this welding tooling is used, three welding toolings can be produced and respectively connected to the three connectors 9 of the power divider 8, and finally the heating table is started for simultaneous welding. And this method is suitable for the embodiment in which the heat conduction tube 1 and the heat conduction body 2 are of an integral structure.

[0045] This welding tooling can also be a single welding tooling that is sequentially connected to the three connectors 9 to complete the welding. This method is suitable for the embodiment in which the heat conduction tube 1 and the heat conduction body 2 are of a split structure.

[0046] The parts not detailed in the present utility model are prior art. For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and the present utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model; therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present utility model, and any reference signs in the claims should not be regarded as limiting the claims involved.

Claims

1. A reliable welding tool for a three-head power divider, characterized by: The invention comprises a heat conducting pipe (1), a heat conducting body (2) and a heat conducting needle (3); the heat conducting pipe (1) is connected to a corresponding connector (9) of a power divider (8); a heat conducting body (2) is arranged in the heat conducting pipe (1); a heat conducting needle (3) corresponding to and abutting against a center needle (10) of the connector (9) is fixed on the head of the heat conducting body (2).

2. The reliable welding tool for the three-head power divider according to claim 1 is characterized in that: The outer wall surface of the heat conducting pipe (1) is configured as a hexagonal structure.

3. The reliable welding tool for the three-head power divider according to claim 1 is characterized in that: The inner wall of the heat conducting pipe (1) is fixedly connected to the heat conducting body (2).

4. The reliable welding tool for the three-head power divider according to claim 1 is characterized in that: The inner wall of the heat-conducting pipe (1) and the heat-conducting body (2) are movably plugged into each other.

5. The reliable welding tool for the three-head power divider according to claim 4 is characterized in that: The middle of the heat conducting pipe (1) is equipped with a retaining ring (4), the middle of the heat conducting body (2) is fitted with a corresponding clearance with the retaining ring (4), and the tail of the heat conducting body (2) is fixedly provided with a retaining block (5) having a diameter larger than that of the retaining ring (4).

6. The reliable welding tool for the three-head power divider according to claim 5 is characterized by: A plurality of mounting grooves are provided on the side of the blocking block (5); a spring (6) is fixedly provided at the bottom of the mounting groove; the end of the spring (6) is fixedly connected to a limiting block (7); a plurality of limiting grooves (11) are provided on the inner wall of the heat conducting pipe (1) at positions corresponding to the plurality of limiting blocks (7); a guide hole (12) communicating with the heat conducting pipe (1) is provided at the bottom of the limiting groove (11); a guide member is provided in the guide hole (12).

7. The reliable welding tool for the three-head power divider according to claim 6 is characterized by: The installation grooves are arranged in two symmetrical positions.

8. The reliable welding tool for the three-head power divider according to claim 5 is characterized by: A C-shaped clamping ring (13) is provided on the side of the blocking block (5), and a clamping groove for clamping the C-shaped clamping ring (13) is provided on the inner wall of the heat conducting pipe (1).

Images