A power tube fixing structure and controller

Abstract

This application discloses a power tube fixing structure and controller, relating to the field of controller technology. The power tube fixing structure includes a heat dissipation housing, which defines a chamber for accommodating the power tube. An elastic member is also disposed within the chamber, and the chamber includes a first sidewall and a second sidewall disposed opposite each other. The elastic member engages the first sidewall and holds the power tube against the second sidewall of the chamber. This structure simplifies the configuration, improves the reliability of power tube fixing, and enhances operational efficiency.

Description

Technical Field

[0001] The present application relates to the field of controller technology, and in particular to a power tube fixing structure and a controller. Background Art

[0002] Currently, devices with power tubes face a common problem: heat dissipation. Power tubes generate heat during operation, causing a high temperature rise in the device. Poor heat dissipation can affect device operation and even cause burnout. Therefore, these power tubes require a press-fit fixing structure to secure them to the heat sink. A commonly used power tube fixing structure involves bolts threaded through a spring clip, securing it to the heat sink and utilizing the deformation of the spring clip to secure the power tube.

[0003] When the above-mentioned method is used for fixing, a larger area is required on the radiator for processing the bolt holes, and the area occupancy rate is high. During the actual production operation, one or more bolts may not be tightened, thereby affecting the heat dissipation effect of the power tube. In addition, the combination of bolts and spring clips increases the number of parts and the number of operating steps in the production process, resulting in longer working hours and affecting production efficiency. Summary of the Invention

[0004] The purpose of this application is to provide a power tube fixing structure and controller, which can simplify the setting form, improve the reliability of the fixed power tube, and improve the operating efficiency.

[0005] The embodiment of the present application is implemented as follows:

[0006] In one aspect of an embodiment of the present application, a power tube fixing structure is provided, including a heat dissipation shell, wherein the heat dissipation shell is formed with a accommodating cavity for arranging the power tube, and an elastic member is further arranged in the accommodating cavity, wherein the accommodating cavity includes a first side wall and a second side wall arranged opposite to each other, the elastic member is clamped with the first side wall, and the elastic member holds the power tube against the second side wall of the accommodating cavity.

[0007] Optionally, the elastic member includes a connecting plate and an elastic arm connected to the connecting plate, the elastic arm is arranged in a one-to-one correspondence with the power tube, and the connecting plate is in contact with the first side wall.

[0008] Optionally, a buckle is further provided on the connecting plate, and a groove for locking with the buckle is provided on the first side wall.

[0009] Optionally, the elastic arm includes a connecting section and a supporting section that are connected to each other, the connecting section is connected to the connecting plate, and the supporting section supports the power tube.

[0010] Optionally, a first force-bearing buckle is further provided on the connecting plate, and a second force-bearing buckle is provided at one end of the supporting section away from the connecting section. The first force-bearing buckle and the second force-bearing buckle are used to adjust the size of the opening between the elastic arm and the connecting plate.

[0011] Optionally, the first force-bearing buckle and the second force-bearing buckle are staggered in the length direction of the connecting plate.

[0012] Optionally, the supporting section is a curved surface structure, and the convex surface of the curved surface structure is arranged away from the connecting plate.

[0013] Optionally, the connecting plate and the elastic arm form a U-shaped structure, and the connecting section includes a positioning portion and a pressing portion arranged on opposite sides in the thickness direction, wherein the positioning portion is located on the outside of the U-shaped structure, and the pressing portion is located on the inside of the U-shaped structure, and a positioning surface that cooperates with the positioning portion is provided in the shell.

[0014] Optionally, an insulating gasket is provided between the power tube and the heat dissipation housing.

[0015] Optionally, a positioning piece is provided on the power tube, the power tube is connected to the insulating gasket via the positioning piece, and thermal conductive silicone grease is coated between the positioning piece and the insulating gasket.

[0016] Another aspect of an embodiment of the present application provides a controller comprising the power tube fixing structure described in any one of the above.

[0017] The beneficial effects of the embodiments of the present application include:

[0018] The power tube fixing structure and controller provided in the embodiment of the present application are configured such that a power tube and an elastic member are arranged in the accommodating chamber, and the power tube is abutted against the second side wall of the accommodating chamber under the action of the elastic member, and the elastic member itself is clamped against the first side wall of the accommodating chamber. When the elastic member provides elastic abutting force to the power tube, it is also affected by elastic deformation and applies elastic force to the first side wall to ensure stable clamping between the elastic member and the first side wall. With the above-mentioned form, there is no need to additionally use bolts to lock the elastic member, which is conducive to simplifying the connection setting form. When the elastic member is loaded to fix the power tube, it is only necessary to insert the elastic member into the opening of the accommodating chamber and clamp it with the first side wall, which is conducive to improving operational efficiency. Moreover, the clamping between the elastic member and the first side wall is relatively stable, which can avoid loosening caused by the use of screws, and is conducive to improving the reliability of fixing the power tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 A schematic diagram of the structure of the power tube fixing structure provided in an embodiment of the present application;

[0021] Figure 2 One of the structural schematic diagrams of the elastic member provided in the embodiment of the present application;

[0022] Figure 3 This is the second structural diagram of the elastic member provided in the embodiment of the present application.

[0023] Icons: 110-heat dissipation housing; 112-first side wall; 1122-groove; 114-second side wall; 116-positioning surface; 120-power tube; 130-elastic member; 131-connecting plate; 132-elastic arm; 1322-connecting section; 1322a-positioning portion; 1322b-pressing portion; 1324-supporting section; 133-clip; 134-first force-bearing buckle; 135-second force-bearing buckle; 140-insulating gasket; 150-positioning member. DETAILED DESCRIPTION

[0024] To make the objectives, technical solutions, and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Generally, the components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0025] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for protection, but merely represents selected embodiments of the present application. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments in the present application without creative work are within the scope of protection of the present application.

[0026] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0027] In the description of this application, it should be noted that the terms "inner" and "outer" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or the orientations or positional relationships in which the product of this application is typically placed when in use. These terms are intended solely to facilitate the description of this application and simplify the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first" and "second" and the like are used solely for distinction and should not be construed as indicating or implying relative importance.

[0028] It should also be noted that, in the description of this application, unless otherwise expressly specified or limited, the terms "disposed" and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to direct connections, indirect connections through an intermediate medium, or internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0029] The commonly used power tube fixing structure is: a bolt is passed through a spring sheet to fix the spring sheet to the heat sink, and the deformation of the spring sheet is used to fix the power tube. When the above-mentioned fixing method is adopted, a large area is required on the heat sink to process the bolt holes, and the area occupancy rate is high. In the actual production operation process, one or more of the bolts may not be tightened, thereby affecting the heat dissipation effect of the power tube. In addition, the combination of bolts and spring sheets increases the number of parts and the number of operating steps in the production process, resulting in longer working hours and affecting production efficiency. In response to the above problems, the embodiments of the present application provide the following technical solutions to overcome the above problems.

[0030] Please refer to Figure 1 This embodiment provides a power tube 120 fixing structure, including a heat dissipation housing 110. The heat dissipation housing 110 is formed with a accommodating cavity for arranging the power tube 120. An elastic member 130 is further arranged in the accommodating cavity. The accommodating cavity includes a first side wall 112 and a second side wall 114 arranged opposite to each other. The elastic member 130 is clamped with the first side wall 112, and the elastic member 130 holds the power tube 120 against the second side wall 114 of the accommodating cavity.

[0031] For example, the heat dissipation shell 110 can be made of an aluminum shell, which ensures lightness while also having good heat dissipation performance. When multiple power tubes 120 are arranged in the accommodating cavity, the multiple power tubes 120 can be arranged side by side on the second side wall 114 of the accommodating cavity, and the heat dissipation surface of the power tube 120 faces the second side wall 114 to ensure good heat dissipation.

[0032] In addition, when the power tube 120 is supported against the second side wall 114 of the accommodating cavity by the elastic member 130, it is only necessary to clamp the elastic member 130 with the first side wall 112 of the accommodating cavity. When the elastic member 130 supports the power tube 120, the elastic member 130 is compressed and deformed under force, so that the elastic member 130 also generates a certain supporting force on the second side wall 114 of the accommodating cavity, ensuring stable clamping between the elastic member 130 and the first side wall 112, which is conducive to improving the stability of the connection.

[0033] The power tube 120 fixing structure provided in the embodiment of the present application is configured such that the power tube 120 and the elastic member 130 are disposed within the accommodating chamber. Under the action of the elastic member 130, the power tube 120 abuts against the second side wall 114 of the accommodating chamber, and the elastic member 130 itself is engaged with the first side wall 112 of the accommodating chamber. When the elastic member 130 provides elastic supporting force to the power tube 120, it is also affected by its own elastic deformation and applies elastic force to the first side wall 112 to ensure stable engagement between the elastic member 130 and the first side wall 112. With the above-mentioned configuration, there is no need to additionally tighten the elastic member 130 with bolts, which helps simplify the connection configuration. When the elastic member 130 is loaded to fix the power tube 120, it is only necessary to insert the elastic member 130 into the opening of the accommodating chamber and engage it with the first side wall 112, which helps improve operational efficiency. Furthermore, the clamping between the elastic member 130 and the first side wall 112 is relatively stable, which can avoid loosening caused by using screws, and is conducive to improving the reliability of fixing the power tube 120.

[0034] like Figure 1 and Figure 2 As shown, the elastic member 130 includes a connecting plate 131 and an elastic arm 132 connected to the connecting plate 131. The elastic arm 132 is arranged in a one-to-one correspondence with the power tube 120. The connecting plate 131 is fitted with the first side wall 112. A buckle 133 is also provided on the connecting plate 131. A groove 1122 for locking with the buckle 133 is provided on the first side wall 112.

[0035] Specifically, the connecting plate 131 primarily serves as a supporting connection. Each elastic arm 132 is connected to the connecting plate 131. Each elastic arm 132 corresponds to each power tube 120. Accordingly, there is a gap between the elastic arms 132. When the elastic arms 132 elastically support the power tube 120, they do not interfere with each other, which helps ensure stable support for each power tube 120. The elastic member 130 is integrally formed by bending and stamping, which helps ensure the stability of the overall connection. By providing a snap 133 on the connecting plate 131 and providing a groove 1122 for the snap 133 to engage with the first side wall 112, when the elastic member 130 is loaded into the accommodating cavity, the elastic member 130 is compressed. When the snap 133 is aligned with the groove 1122, a certain distance is released between the elastic arm 132 and the connecting plate 131. Under the action of the elastic force, the snap 133 bounces into the groove 1122 with a slight sound to remind the operator that the assembly is in place. It is understandable that the snap 133 can be provided in multiple numbers, for example, two or three. After the snap 133 is engaged with the groove 1122, it can limit the horizontal or vertical displacement of the elastic member 130, which is conducive to ensuring the stability of the connection.

[0036] It should be noted that the embodiment of the present application does not impose any specific restrictions on the setting form of the groove 1122, as long as it can play the role of limiting the buckle 133. For example, the cutout of the groove 1122 can be set in a triangular or arc-shaped form to achieve the function of holding and positioning the buckle 133. In addition, the embodiment of the present application does not impose any specific restrictions on the number of power tubes 120. For example, the power tubes 120 can be set to 4, 6 or 8, and the elastic arms 132 are also directly set to 4, 6 or 8, thereby achieving a corresponding relationship between the elastic arms 132 and the power tubes 120. In order to ensure that the elastic arm 132 stably supports the power tube 120 while avoiding damage to the power tube 120, the elastic force provided by the elastic arm 132 can be set to about 20N.

[0037] like Figure 2 As shown, the elastic arm 132 includes a connecting section 1322 and a supporting section 1324 that are connected to each other. The connecting section 1322 is connected to the connecting plate 131 , and the supporting section 1324 supports the power tube 120 .

[0038] Specifically, the connecting section 1322 is an important support for connecting the supporting section 1324 and the connecting plate 131. It is also the main area that is deformed by force and generates elastic supporting force. The supporting section 1324 cooperates with the power tube 120 to provide elastic supporting force to the power tube 120. In order to ensure the reliability of the connection of the connecting section 1322, the connecting section 1322 can adopt a gradual width change, with a wider width near the connecting plate 131 and gradually narrowing near the supporting section 1324. The above form can meet its own strength and prevent elastic failure while also having a more suitable width at the position where it cooperates with the power tube 120 to ensure the convenience of connection.

[0039] It should be noted that the embodiment of the present application does not impose any specific restrictions on the lengths of the connecting section 1322 and the supporting section 1324, and can be flexibly set according to the relative positions of the power tube 120 and the heat dissipation shell 110. When in use, there is no need to change the design of the heat dissipation shell 110, and only the length of the elastic arm 132 needs to be changed to adjust the supporting position.

[0040] like Figure 2 and Figure 3 As shown, a first force-bearing buckle 134 is also provided on the connecting plate 131, and a second force-bearing buckle 135 is provided on the end of the supporting section 1324 away from the connecting section 1322. The first force-bearing buckle 134 and the second force-bearing buckle 135 are used to adjust the size of the opening between the elastic arm 132 and the connecting plate 131.

[0041] Specifically, by providing a first force-bearing buckle 134 on the connecting plate 131 and providing a second force-bearing buckle 135 at the end of the supporting section 1324 away from the connecting section 1322, when the elastic member 130 is assembled into the accommodating cavity, the first force-bearing buckle 134 and the second force-bearing buckle 135 can be clamped with the help of a tool. In this way, the elastic arm 132 can be closed toward the connecting plate 131, that is, the size of the opening between the elastic arm 132 and the connecting plate 131 can be adjusted, thereby making the process of assembling the elastic member 130 more labor-saving, and avoiding the elastic arm 132 from causing damage to the power tube 120 when it is abutted against the power tube 120 and then slides relative to the power tube 120, which is conducive to ensuring the reliability of the fit.

[0042] like Figure 2 As shown, the first force-bearing buckle 134 and the second force-bearing buckle 135 are staggered in the length direction of the connecting plate 131 .

[0043] Specifically, in actual application, the connecting plate 131 is in contact with the first side wall 112. When the first force-bearing buckle 134 is provided on the connecting plate 131, in order to prevent the first force-bearing buckle 134 from interfering with the first side wall 112, the first force-bearing buckle 134 is bent in the direction of the elastic arm 132. In order to prevent the first force-bearing buckle 134 and the second force-bearing buckle 135 from interfering with each other when they approach each other, thereby affecting the elastic arm 132 from moving closer to the connecting plate 131, the first force-bearing buckle 134 and the second force-bearing buckle 135 are staggered in the length direction of the connecting plate 131 to facilitate better cooperation between the elastic arm 132 and the connecting plate 131.

[0044] like Figure 3 As shown, the supporting section 1324 is a curved structure, and the convex surface of the curved structure is arranged away from the connecting plate 131 .

[0045] The above-mentioned form is conducive to better abutment between the abutting section 1324 and the power tube 120, avoiding damage to the power tube 120 when the elastic arm 132 contacts the power tube 120, and ensuring stability during the assembly process.

[0046] like Figure 1 and Figure 3 As shown, the connecting plate 131 and the elastic arm 132 form a U-shaped structure, and the connecting section 1322 includes a positioning portion 1322a and a pressing portion 1322b arranged on opposite sides in the thickness direction, wherein the positioning portion 1322a is located on the outside of the U-shaped structure, and the pressing portion 1322b is located on the inside of the U-shaped structure, and a positioning surface 116 that cooperates with the positioning portion 1322a is provided in the shell.

[0047] Specifically, the positioning portion 1322a of the connecting section 1322 cooperates with the positioning surface 116. When the elastic member 130 is assembled in place, the positioning portion 1322a can abut against the positioning surface 116, preventing the elastic member 130 from moving further downward, which helps to ensure the reliability of the alignment between the power tube 120 and the elastic arm 132, thereby better ensuring stable elastic support for the power tube 120. In addition, due to the provision of the pressing portion 1322b, during the assembly of the elastic member 130, if there is no suitable tool on hand to clamp the first force-bearing buckle 134 and the second force-bearing buckle 135 for assembly, assembly can also be performed directly by using a hard card to press the pressing portion 1322b.

[0048] like Figure 1 As shown, an insulating gasket 140 is provided between the power tube 120 and the heat dissipation housing 110 .

[0049] Specifically, by providing an insulating gasket 140 between the power tube 120 and the heat dissipation housing 110, it is helpful to prevent the heat dissipation housing 110 from affecting the power tube 120, thereby ensuring stability during use. The insulating gasket 140 can be made of a ceramic sheet, which not only ensures insulation but also has good thermal conductivity, thus facilitating the timely dissipation of heat generated by the power tube 120.

[0050] like Figure 1 As shown, a positioning member 150 is provided on the power tube 120 , and the power tube 120 is connected to the insulating gasket 140 through the positioning member 150 , and thermal conductive silicone grease is coated between the positioning member 150 and the insulating gasket 140 .

[0051] Specifically, when assembling the power tube 120, the power tube 120 can be first loaded onto the positioning member 150 to temporarily assist in positioning the power tube 120. After positioning the power tube 120, it is more convenient to secure the power tube 120 within the accommodating cavity. In addition, by applying thermal grease between the positioning member 150 and the insulating gasket 140, the positioning member 150 and the insulating gasket 140 can be better fitted together, ensuring effective heat dissipation.

[0052] The present application also discloses a controller including the power tube 120 securing structure described in the aforementioned embodiment. This controller has the same structure and benefits as the power tube 120 securing structure described in the aforementioned embodiment. The structure and benefits of the power tube 120 securing structure have been described in detail in the aforementioned embodiment and will not be repeated here.

[0053] The above description is merely a preferred embodiment of the present application and is not intended to limit the present application. Various modifications and variations are possible for those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

Claims

1. A power tube fixing structure, characterized in that: The heat dissipation housing includes a housing for accommodating a power tube, an elastic member is further disposed in the housing, the housing includes a first side wall and a second side wall opposite to each other, the elastic member is engaged with the first side wall, and the elastic member holds the power tube against the second side wall of the housing; The elastic member includes a connecting plate and an elastic arm connected to the connecting plate, the elastic arm is arranged in a one-to-one correspondence with the power tube, and the connecting plate is in contact with the first side wall; The connecting plate is further provided with a buckle, and the first side wall is provided with a groove for locking with the buckle; The elastic arm includes a connecting section and a supporting section that are connected to each other, the connecting section is connected to the connecting plate, and the supporting section supports the power tube; The connecting plate is further provided with a first force-bearing buckle, and the end of the supporting section away from the connecting section is provided with a second force-bearing buckle, and the first force-bearing buckle and the second force-bearing buckle are used to adjust the size of the opening between the elastic arm and the connecting plate; The first force-bearing buckles and the second force-bearing buckles are staggered in the length direction of the connecting plate.

2. The power tube fixing structure according to claim 1, characterized in that: The supporting section is a curved surface structure, and the convex surface of the curved surface structure is arranged away from the connecting plate.

3. The power tube fixing structure according to claim 1, characterized in that: The connecting plate and the elastic arm form a U-shaped structure, and the connecting section includes a positioning portion and a pressing portion arranged on opposite sides in the thickness direction, wherein the positioning portion is located on the outside of the U-shaped structure, and the pressing portion is located on the inside of the U-shaped structure, and a positioning surface that cooperates with the positioning portion is provided in the shell.

4. The power tube fixing structure according to claim 1, characterized in that: An insulating gasket is provided between the power tube and the heat dissipation housing.

5. The power tube fixing structure according to claim 4, characterized in that: A positioning piece is provided on the power tube, the power tube is connected to the insulating gasket through the positioning piece, and thermal conductive silicone grease is coated between the positioning piece and the insulating gasket.

6. A controller, characterized in that: The invention comprises the power tube fixing structure according to any one of claims 1 to 5.

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