A high frequency heating device

Abstract

The utility model discloses a high frequency heating device relates to plastic -encapsulated material heating device technical field, and its specific structure includes: base, upper cover, the movable installation on the base, when the upper cover covers on the base, the inner wall of upper cover and the upper surface of base combination forms heating cavity, heating source sets up on the inner wall of upper cover, drive mechanism, install on the base, transmission mechanism, install on the base, and transmission mechanism is located in the inside of heating cavity, and transmission mechanism includes: bottom plate, main bearing seat, install on the bottom plate, driving shaft, install in the inside of main bearing seat, and the end of driving shaft is connected with the output of drive mechanism, from bearing seat, install on the bottom plate, driven shaft, install in the inside of from bearing seat, and driven shaft is perpendicular with driving shaft. The utility model solves the technical problem that the plastic -encapsulated material is not enough uniform in preheating in the prior art.

Description

Technical Field

[0001] This utility model relates to the technical field of heating devices for molding compound, and in particular to a high-frequency heating device. Background Technology

[0002] Semiconductor devices are among the most important electronic components, with a wide range of applications. Especially in various electronic circuits, semiconductor devices are used in conjunction with resistors, capacitors, inductors, and other components to create circuits with different functions, such as AC rectification, modulation signal detection, limiting and clamping, and power supply voltage regulation.

[0003] Semiconductor devices require molding compounds for encapsulation. Currently, the molding compounds used for injection molding of semiconductor devices on the market are usually placed in a closed space during preheating, and then the closed space is preheated. This can achieve heating of the molding compound, but the temperature of different areas of the molding compound is different, and it cannot be heated evenly, which affects the quality of preheating of the molding compound. Utility Model Content

[0004] The purpose of this invention is to provide a high-frequency heating device that solves the technical problem of uneven preheating of molding compound in the prior art.

[0005] This application discloses a high-frequency heating device, including: Base; The upper cover is movably mounted on the base. When the upper cover covers the base, the inner wall of the upper cover and the upper surface of the base combine to form a heating cavity. A heating source is located on the inner wall of the upper cover; The drive mechanism is mounted on the base; A transmission mechanism is mounted on the base and located inside the heating chamber. The transmission mechanism cooperates with the output end of the drive mechanism. The transmission mechanism includes: Base plate; The main bearing housing is mounted on the base plate; The drive shaft is installed inside the main bearing housing, and the end of the drive shaft is connected to the output end of the drive mechanism; From the bearing housing, it is mounted on the base plate; The driven shaft is installed inside the driven bearing housing and is perpendicular to the driving shaft. The outer edge of the driven shaft meshes with the outer edge of the driving shaft, and the driven shaft is located above the driving shaft.

[0006] This application is equipped with a transmission mechanism and a drive mechanism. The rotation of the driven shaft drives the molding compound to rotate, thereby achieving heating during the rotation process and ensuring uniformity.

[0007] Based on the above technical solution, the present application can be further improved as follows: Furthermore, there are multiple driven shafts, which are arranged side by side in parallel with intervals. The advantage of this step is that multiple driven shafts can cooperate with each other to achieve heating of multiple molding compounds.

[0008] Furthermore, the drive shaft is provided with a first helical tooth segment, and the driven shaft is provided with a second helical tooth segment that cooperates with the first helical tooth segment. The beneficial effect of this step is that transmission can be achieved through multiple helical tooth segments, thereby driving the molding compound to rotate.

[0009] Furthermore, the driven shaft is a polytetrafluoroethylene shaft. The advantage of using this step is that by using a driven shaft made of a specific material, the stability of the entire device can be guaranteed.

[0010] Furthermore, limiting rings are installed at intervals on the driven shaft. The beneficial effect of this step is that the limiting rings can prevent the molding compound from contacting the helical tooth section, thus avoiding affecting the quality of the molding compound.

[0011] Furthermore, the heating source includes an aluminum plate and a high-frequency component. The high-frequency component is connected to a power source. The beneficial effect of this step is that the aluminum plate and the high-frequency component work together to achieve the heating effect.

[0012] One or more technical solutions provided in the embodiments of this application have at least the following technical effects or advantages: 1. This application uses a drive mechanism to rotate a transmission mechanism, thereby forming a heating source and completing the uniform heating of the molding compound, thus ensuring the quality of preheating.

[0013] 2. This application designs the material of the driven shaft to be non-metallic, which can ensure the stability of the overall structure while heating.

[0014] 3. This application has a simple structure and can achieve uniform heating of the molding compound. Attached Figure Description

[0015] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of a high-frequency heating device according to a specific embodiment of the present utility model; Figure 2 for Figure 1 A schematic diagram of the driven shaft in the diagram; The attached figures are labeled as follows: 1-Base; 2-Top cover; 3-Drive mechanism; 4-Transmission mechanism; 5-Heating source; 201 - Heating chamber; 202 - Aluminum plate; 203 - High-frequency component; 401 - Base plate; 402 - Main bearing housing; 403 - Drive shaft; 404 - Driven bearing housing; 405 - Driven shaft; 406 - First helical tooth section; 407 - Second helical tooth section; 408 - Limiting ring. Detailed Implementation

[0017] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and should not be construed as limiting the scope of protection of the present invention. It should be noted that, unless otherwise stated, the technical or scientific terms used in this application shall have the ordinary meaning as understood by one of ordinary skill in the art to which this utility model pertains.

[0018] In the description of this application, it should be understood that the terms "upper", "lower", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0019] In this application, unless otherwise expressly specified and limited, the terms "installation," "setup," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0020] To better understand the above technical solutions, the following will provide a detailed description of the technical solutions in conjunction with the accompanying drawings and specific embodiments.

[0021] Example 1: like Figure 1-2As shown in the figure, this application discloses a high-frequency heating device for performing high-frequency heating, specifically for preheating the molding compound at high temperature. In order to ensure the uniformity of preheating, this application can realize the rolling preheating of the molding compound.

[0022] like Figure 1 As shown, the specific structure of this application includes: Base 1, which is an existing base, is used to support subsequent components, and its upper surface serves as a workbench. The upper cover 2 is movably installed on the base 1. When the upper cover 2 covers the base 1, the inner wall of the upper cover 2 and the upper surface of the base 1 combine to form a heating chamber 201. This heating chamber 201 is used for subsequent high-frequency heating, that is, to complete the preheating of the molding compound. The upper cover 2 can be installed on the base 1 by hinges. When the upper cover 2 covers the base 1 (the bottom of the upper cover is in contact with the upper surface of the base 1), a relatively sealed heating chamber 201 is formed to ensure that the heating temperature is controllable. The heating source 5 is located on the inner wall of the upper cover 2 and is used to heat the molding compound. That is, when the upper cover 2 is lowered, the heating source 5 comes into contact with the molding compound and heats it. The drive mechanism 3 is installed on the base 1. The drive mechanism 3 is an existing mechanism, including components such as motors and gears. As long as it can realize the transmission of power, it is sufficient. It mainly cooperates with the subsequent transmission mechanism. The transmission mechanism 4 is mounted on the base 1 and is located inside the heating chamber 201. The transmission mechanism 4 cooperates with the output end of the drive mechanism 3. The power source of the transmission mechanism 4 comes from the drive mechanism 3, and it rotates under the drive of the drive mechanism 3. The transmission mechanism 4 includes: Base plate 401; The main bearing housing 402 is mounted on the base plate 401. The main bearing housing 402 is an existing device, which facilitates the stable rotation of the subsequent drive shaft 403 under the drive of the drive mechanism 3. The drive shaft 403 is installed inside the main bearing housing 402, and the end of the drive shaft 403 is connected to the output end of the drive mechanism 3. It is mounted on the base plate 401 from the bearing housing 404; The driven shaft 405 is installed inside the driven bearing seat 404, and the driven shaft 405 is perpendicular to the driving shaft 403. The outer edge of the driven shaft 405 meshes with the outer edge of the driving shaft 403, and the driven shaft 405 is located above the driving shaft 403. In this application, the rotation of the driving shaft 403 drives the rotation of the driven shaft 405. At the same time, the molding compound is placed between the driven shafts 405 (preferably, there are at least two driven shafts 405). When the driven shafts 405 rotate, the molding compound can also rotate, thereby achieving uniform heating.

[0023] Preferably, there are multiple driven shafts 405 in this application, and the driven shafts 405 are arranged side by side in parallel with intervals. In use, the molding compound can be placed between two adjacent driven shafts 405 to improve the uniformity of subsequent heating.

[0024] The heating source of this application is a high-frequency heating source. Specifically, the heating source 5 includes an aluminum plate 202 and a high-frequency component 203. The aluminum plate 202 corresponds to the driven shaft 405. When the upper cover 2 is closed, the aluminum plate 202 contacts the upper surface of the molding compound, thereby completing contact heating. Before use, the aluminum plate is equipped with the high-frequency component. During use, the high-frequency component is powered on to heat the aluminum plate 202, thereby completing the heating of the molding compound. Moreover, the rotation of the driven shaft 405 can realize the rotation of the molding compound, thereby achieving uniform heating of the molding compound.

[0025] like Figure 1 , 2 As shown, in order to realize the mutual transmission between the drive shaft 403 and the driven shaft 405, the drive shaft 403 is provided with a first helical tooth section 406, and the driven shaft 405 is provided with a second helical tooth section 407 that cooperates with the first helical tooth section 406. The two helical tooth sections cooperate with each other to realize the transmission. At the same time, the driven shaft 405 in this application is also provided with a smooth section, that is, without helical teeth, for placing the molding compound, which can also prevent the surface of the molding compound from being damaged when the molding compound rotates.

[0026] Because the driven shaft 405 is in direct contact with the molding compound, in order to ensure stability, the driven shaft in this application is a polytetrafluoroethylene shaft.

[0027] To prevent the molding compound from sliding towards the helical teeth when moving on the driven shaft 405, limit rings 408 are installed at intervals on the driven shaft in this application. That is, limit rings 408 are provided on the smooth section of the driven shaft to prevent the molding compound from sliding towards the helical teeth section.

[0028] The specific work process for this application is as follows: Before use, open the top cover 2 and place the molding compound on the driven shaft 405, specifically on the smooth section of the driven shaft 405. Start the drive mechanism 3 to drive the drive shaft 403 to move, thus realizing the rotation of the driven shaft 405, which in turn causes the molding compound to start rolling. Connect the aluminum plate 202 to the high-frequency component, and simultaneously energize the high-frequency component to heat the aluminum plate 202. Then close the top cover to complete the uniform heating of the molding compound.

[0029] Numerous specific details are set forth in this specification. However, it will be understood that embodiments of this invention may be practiced without these specific details. In some instances, well-known methods, structures, and techniques have not been shown in detail so as not to obscure the understanding of this specification. In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0030] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model.

Claims

1. A high-frequency heating device, characterized by comprising: include: Base (1); The upper cover (2) is movably mounted on the base (1). When the upper cover (2) covers the base (1), the inner wall of the upper cover (2) and the upper surface of the base (1) combine to form a heating cavity (201). A heating source (5) is disposed on the inner wall of the upper cover (2); The drive mechanism (3) is mounted on the base (1); The transmission mechanism (4) is installed on the base (1) and the transmission mechanism (4) is located inside the heating chamber (201). The transmission mechanism (4) cooperates with the output end of the drive mechanism (3). The transmission mechanism (4) includes: Base plate (401); The main bearing housing (402) is mounted on the base plate (401); The drive shaft (403) is installed inside the main bearing housing (402), and the end of the drive shaft (403) is connected to the output end of the drive mechanism (3); From the bearing housing (404), it is mounted on the base plate (401); The driven shaft (405) is installed inside the driven bearing housing (404), and the driven shaft (405) is perpendicular to the driving shaft (403). The outer edge of the driven shaft (405) meshes with the outer edge of the driving shaft (403), and the driven shaft (405) is located above the driving shaft (403).

2. The high-frequency heating apparatus according to claim 1, wherein There are multiple driven shafts (405), and the driven shafts (405) are arranged side by side in parallel with intervals.

3. The high-frequency heating apparatus according to claim 1, wherein The drive shaft (403) is provided with a first helical tooth section (406), and the driven shaft (405) is provided with a second helical tooth section (407) that cooperates with the first helical tooth section (406).

4. The high-frequency heating apparatus according to claim 3, wherein The driven shaft (405) is a polytetrafluoroethylene shaft.

5. The high-frequency heating apparatus according to claim 4, wherein Limiting rings (408) are installed at intervals on the driven shaft (405).

6. The high-frequency heating apparatus according to claim 5, wherein The heating source (5) includes an aluminum plate (202) and a high-frequency component (203), and the high-frequency component (203) is connected to a power source.

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