Power tube pressing strip

Abstract

The utility model discloses a power tube pressing strip, which comprises a pressing strip main body and a connecting structure, and the connecting structure is arranged at one end of the pressing strip main body. The power tube pressing strip further comprises a buffer structure, the buffer structure is arranged on the bottom side surface of the pressing strip body, and the buffer structure is arranged between the pressing strip body and a corresponding element, so that elastic connection between the pressing strip body and the element is achieved. The buffer structure comprises an elastic piece, one end of the elastic piece is connected to the bottom side surface of the batten body, the other end of the elastic piece extends by a preset distance back to the batten body, and when the batten body covers the power tube, the end, back to the batten body, of the elastic piece abuts against the surface of the element, so that elastic connection between the batten body and the surface of the element is achieved. When the power tube batten covers the surface of the power tube through the batten main body, the bottom end of the connecting structure is connected to a corresponding element, so that the power tube can be stably fixed to the surface of the element, and the mounting stability of the power tube is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a pressure bar technical field, especially a kind of power tube pressure bar. BACKGROUND

[0002] Power tube pressure bar is a kind of device for fixing and compacting power tube (such as MOSFET, IGBT and other power devices), commonly used in electronic equipment or circuit board, especially in high-power or high-temperature applications. Its main purpose is to ensure the close contact between power tube and radiator, so as to improve the heat conduction efficiency and mechanical stability. The main functions of power tube pressure bar include providing mechanical fixation for power tube, preventing power tube from shifting or sending during vibration, thermal expansion and contraction or transportation process; promoting uniform stress distribution, compared with screw fixation, pressure bar can exert uniform pressure on power tube, avoiding damaging the device or affecting the heat dissipation performance due to local excessive pressure; enhancing heat conduction performance, based on the need of power tube to be in close contact with radiator to effectively conduct heat out of air, pressure bar reduces the gap between power tube and radiator by exerting uniform pressure, thereby improving the heat conduction efficiency between them. And the existing power tube pressure bar, its structure generally includes pressure bar main body, fixed bolt or buckle, some also include insulating gasket, wherein the pressure bar main body is usually supported by metal (such as aluminum, steel) or high-strength engineering plastic, with good mechanical properties, and the fixed bolt or buckle is used to fix the pressure bar to the surface of radiator or circuit board, to realize the actual function of pressure bar.

[0003] The pressure bar main body of the existing power tube pressure bar described above is generally a straight plate structure with certain elastic limit, one end of which is pressed onto the top side surface of power tube, and the other end is usually connected to the surface of corresponding element such as radiator or circuit board. However, such pressure bar has limited buffering performance, and cannot adaptively adjust the applied pressure according to the real-time changes of actual use conditions, so that the existing pressure bar still has the problems of crushing power tube or poor fixing effect. UTILITY MODEL CONTENTS

[0004] Therefore, it is necessary to provide a power tube pressure bar to solve the technical problem of insufficient buffering performance of the existing power tube pressure bar.

[0005] A power tube pressure bar, the power tube pressure bar includes pressure bar main body and connecting structure, the connecting structure is arranged at one end of the pressure bar main body, when the pressure bar main body is pressed onto the surface of power tube, the bottom end of the connecting structure is connected to the corresponding element, so as to stably fix the power tube to the surface of element.

[0006] The power tube pressure bar further includes buffering structure, the buffering structure is arranged on the bottom side surface of the pressure bar main body, when the pressure bar main body is pressed onto the surface of power tube, the buffering structure is arranged between the pressure bar main body and the corresponding element, so as to realize the elastic connection between the pressure bar main body and the element.

[0007] The buffer structure comprises an elastic member, one end of the elastic member is connected to the bottom surface of the pressing strip body, the other end of the elastic member extends away from the pressing strip body by a preset distance, when the pressing strip body is capped to the power tube, the end of the elastic member away from the pressing strip body abuts to the surface of the element, thereby realizing the elastic connection between the pressing strip body and the surface of the element.

[0008] In one embodiment, the above-mentioned buffer structure further comprises a fixing member, the fixing member is arranged on one side surface of the pressing strip body corresponding to the elastic member, one end of the fixing member is connected to the pressing strip body, and the other end of the fixing member is connected to the end of the elastic member facing the pressing strip body.

[0009] In one embodiment, the above-mentioned elastic member is arranged as a spring with a preset size, one end of the spring is fixedly connected to the pressing strip body through the fixing member, and the other end of the spring extends away from the pressing strip body by a preset distance to abut to the surface of the corresponding element.

[0010] In one embodiment, the above-mentioned fixing member is arranged as a fastening bolt, the fastening bolt penetrates through the top surface of the pressing strip body to the bottom surface of the pressing strip body and connects the corresponding end of the spring.

[0011] In one embodiment, the above-mentioned connecting structure is provided with a hinge part, the hinge part is arranged at one end of the connecting structure, and the hinge part is hinged with the corresponding end of the pressing strip body.

[0012] In one embodiment, the above-mentioned connecting structure is further provided with a avoiding slot corresponding to the hinge part, the hinged end of the pressing strip body can be fitted and accommodated in the avoiding slot.

[0013] In one embodiment, the end of the pressing strip body away from the connecting structure is provided with a buckling part, the buckling part is bent to form a folded plate structure relative to the bottom side of the pressing strip body, when the pressing strip body is capped to the surface of the power tube, the buckling part is buckled to the surface of the power tube.

[0014] In one embodiment, the above-mentioned buckling part is further provided with a plurality of anti-skid protrusions, the anti-skid protrusions are arranged on the bottom end surface of the buckling part, thereby when the buckling part is buckled to the surface of the power tube, the anti-skid protrusions abut to the surface of the power tube.

[0015] In one embodiment, the above-mentioned pressing strip body is further provided with a bending part, the bending part is arranged in the middle of the plate surface of the pressing strip body, thereby the middle of the pressing strip body forms an arch-shaped structure.

[0016] In one embodiment, the above-mentioned pressing strip body is further provided with a plurality of heat dissipation fins, the plurality of heat dissipation fins are arranged in parallel and equidistantly on the top surface of the pressing strip body, thereby forming an air-cooled heat dissipation structure.

[0017] The power tube pressing strip is connected to the corresponding element at the bottom end of the connecting structure when the pressing strip main body is pressed onto the surface of the power tube, so that the power tube can be stably fixed to the surface of the element, thereby improving the installation stability of the power tube. Therefore, the power tube pressing strip further comprises a buffer structure, which is arranged between the pressing strip main body and the corresponding element when the pressing strip main body is pressed onto the surface of the power tube, so as to realize the elastic connection between the pressing strip main body and the element. Based on the buffering performance of the buffer structure, the pressure applied by the pressing strip main body to the surface of the power tube can be adaptively adjusted within a certain limit, while maintaining the effectiveness of the fixing function of the pressing strip main body to the power tube, avoiding the case that the pressing strip main body applies excessive force to the power tube and causes damage to the power tube, thereby expanding the universality of the power tube pressing strip structure. Compared with the existing pressing strip products, the power tube pressing strip of the utility model can realize the elastic connection between the pressing strip main body and the corresponding element through the buffer structure, so as to adaptively adjust the pressure applied by the pressing strip main body to the surface of the power tube, thereby realizing the pressure self-adjusting function of the pressing strip main body, while maintaining the effectiveness of the fixing function of the pressing strip main body to the power tube, avoiding the case that the pressing strip main body applies excessive force to the power tube and causes damage to the power tube, greatly improving the practicability and universality of the power tube pressing strip. BRIEF DESCRIPTION OF DRAWINGS

[0018] Fig. 1 It is a structural schematic diagram of the power tube pressing strip in one embodiment.

[0019] Fig. 2 It is an exploded structural schematic diagram of the power tube pressing strip in one embodiment.

[0020] Fig. 3 It is an exploded structural schematic diagram of the power tube pressing strip in one embodiment. DETAILED DESCRIPTION

[0021] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific embodiments of the utility model will be described in detail below. In the following description, many specific details are set forth in order to fully understand the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0022] In the description of the utility model, it is understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like is the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0023] In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first" and "second" can explicitly or implicitly include at least one of the features. In the description of the utility model, the meaning of "multiple" is at least two, for example, two, three, etc., unless otherwise specifically limited.

[0024] In the utility model, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrated; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, it can be the communication or interaction relationship between two elements, unless otherwise specifically limited. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0025] In the utility model, unless otherwise specifically defined and limited, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact between the first and second features through intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0026] It is to be noted that when an element is referred to as being "on" or "connected to" another element, it can be directly on the other element or intervening elements can also be present. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements can also be present. As used herein, the terms "vertical", "horizontal", "upper", "lower", "left", "right", and the like are merely used for the purpose of explanation and are not intended to be limiting.

[0027] Referring to Figs. 1 to 3 The utility model discloses a kind of power tube pressing strips, which includes pressing strip main body 100 and connecting structure 200, connecting structure 200 is arranged at one end of pressing strip main body 100, when pressing strip main body 100 is pressed to the surface of power tube, the bottom end of connecting structure 200 is connected to the corresponding element, so that the power tube can be stably fixed to the surface of element, to improve the installation stability of power tube. Based on this, the power tube pressing strip further includes buffer structure 300, buffer structure 300 is arranged on the bottom side surface of pressing strip main body 100, when pressing strip main body 100 is pressed to the surface of power tube, buffer structure 300 is arranged between pressing strip main body 100 and the corresponding element, so as to realize the elastic connection between pressing strip main body 100 and the element. Based on the buffering performance of buffer structure 300, the pressure applied by pressing strip main body 100 to the surface of power tube can be adaptively adjusted within a certain limit, while maintaining the effectiveness of the fixing function of pressing strip main body 100 to power tube, avoiding the case that the power tube is damaged due to excessive force applied by pressing strip main body 100, to expand the versatility of the power tube pressing strip structure. Specifically, buffer structure 300 includes elastic member 310, one end of elastic member 310 is connected to the bottom side surface of pressing strip main body 100, the other end of elastic member 310 extends away from pressing strip main body 100 by a predetermined distance, when pressing strip main body 100 is pressed to the power tube, the end of elastic member 310 away from pressing strip main body 100 abuts against the surface of the element, so as to realize the elastic connection between pressing strip main body 100 and the surface of the element, and further realize the buffering function of elastic member 310. Compared with the existing pressing strip products, the power tube pressing strip of the utility model can realize the elastic connection between pressing strip main body 100 and the corresponding element through buffer structure 300, to adaptively adjust the pressure applied by pressing strip main body 100 to the surface of power tube, thereby realizing the pressure self-adjusting function of pressing strip main body 100, while maintaining the effectiveness of the fixing function of pressing strip main body 100 to power tube, avoiding the case that the power tube is damaged due to excessive force applied by pressing strip main body 100, greatly improving the practicability and versatility of the power tube pressing strip.

[0028] Further, the buffer structure 300 further comprises a fixing member 320, which is arranged on one side surface of the pressing strip body 100 corresponding to the elastic member 310. One end of the fixing member 320 is connected to the pressing strip body 100, and the other end of the fixing member 320 is connected to one end of the elastic member 310 facing the pressing strip body 100, so as to realize the fixed connection between the elastic member 310 and the pressing strip body 100. In one embodiment, the elastic member 310 is arranged as a spring with a preset size. One end of the spring is fixedly connected to the pressing strip body 100 through the fixing member 320, and the other end of the spring extends away from the pressing strip body 100 by a preset distance to abut against the surface of the corresponding element. In another embodiment, the fixing member 320 is arranged as a fastening bolt, which penetrates through the top side surface of the pressing strip body 100 to the bottom side surface of the pressing strip body 100 and connects the corresponding end of the spring, so as to realize the fixed connection between the elastic member 310 and the pressing strip body 100.

[0029] Further, the connecting structure 200 is provided with a hinge part 210 arranged at one end of the connecting structure 200. The hinge part 210 is hinged with the corresponding end of the pressing strip body 100. When the connecting structure 200 is connected to the surface of the corresponding element, the pressing strip body 100 can swing relative to the connecting structure 200 through the hinge part 210 to avoid the power tube. When the element surface of the power tube is installed at the preset installation position, the pressing strip body 100 is swung to the surface of the power tube again, so as to improve the installation convenience of the power tube. In one embodiment, the connecting structure 200 is further provided with an avoiding groove a corresponding to the hinge part 210. The hinged end of the pressing strip body 100 can be accommodated in the avoiding groove a. When the pressing strip body 100 continues to swing relative to the connecting structure 200, the avoiding groove a can avoid the interference between the pressing strip body 100 and the connecting structure 200.

[0030] Further, one end of the pressing strip body 100 away from the connecting structure 200 is provided with a buckling part 110. The buckling part 110 is bent towards the bottom side relative to the pressing strip body 100 to form a folded plate structure. When the pressing strip body 100 is buckled to the surface of the power tube, the buckling part 110 is buckled to the surface of the power tube to realize the pressure exertion of the pressing strip body 100 on the power tube. Specifically, the buckling part 110 is further provided with a plurality of anti-skid protrusions 111 arranged on the bottom side end face of the buckling part 110. When the buckling part 110 is buckled to the surface of the power tube, the anti-skid protrusions 111 abut against the surface of the power tube. Therefore, the plurality of anti-skid protrusions 111 can improve the connection stability of the buckling part 110 on the surface of the power tube, reduce the sliding of the power tube, and further strengthen the connection strength of the power tube between the corresponding elements.

[0031] Further, the pressing strip body 100 is further provided with a bending portion 120, the bending portion 120 is arranged in the middle part of the plate surface of the pressing strip body 100, so that the middle part of the pressing strip body 100 forms an arch-shaped structure, and in actual application, the bending portion 120 can further improve the buffering performance of the pressing strip body 100, and improve the force self-adaptive function of the pressing strip body 100 to the power tube.

[0032] Further, the pressing strip body 100 is further provided with a plurality of heat dissipation fins 130, the plurality of heat dissipation fins 130 are arranged in parallel and equidistantly on the top side surface of the pressing strip body, so as to form an air cooling heat dissipation structure, when the pressing strip body 100 is pressed to the surface of the power tube, the plurality of heat dissipation fins 130 can effectively improve the heat dissipation performance of the pressing strip body 100 to the power tube, so as to improve the operation stability of the power tube.

[0033] In summary, the power tube pressing strip disclosed in the utility model can realize the elastic connection between the pressing strip body and the corresponding element through the connection structure when the pressing strip body is pressed to the surface of the power tube, so as to stably fix the power tube to the surface of the element, and improve the installation stability of the power tube. Therefore, the power tube pressing strip further comprises a buffering structure, the buffering structure is arranged between the pressing strip body and the corresponding element when the pressing strip body is pressed to the surface of the power tube, so as to realize the elastic connection between the pressing strip body and the element. Based on the buffering performance of the buffering structure, the pressure applied by the pressing strip body to the surface of the power tube can be adaptively adjusted within a certain limit, so as to maintain the effectiveness of the fixing function of the pressing strip body to the power tube, avoid the damage of the power tube caused by the excessive force applied by the pressing strip body, and expand the universality of the power tube pressing strip structure. Compared with the existing pressing strip product, the power tube pressing strip of the utility model can realize the elastic connection between the pressing strip body and the corresponding element through the buffering structure, so as to adaptively adjust the pressure applied by the pressing strip body to the surface of the power tube, thereby realizing the pressure self-adjusting function of the pressing strip body, maintaining the effectiveness of the fixing function of the pressing strip body to the power tube, avoiding the damage of the power tube caused by the excessive force applied by the pressing strip body, and greatly improving the practicability and universality of the power tube pressing strip.

[0034] The technical features of the above-described embodiments can be combined in any manner. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described, but as long as the combinations of the technical features do not exist contradictions, they should be considered as the scope of the present disclosure.

[0035] The above-described embodiments only express several implementation manners of the utility model, the description is more specific and detailed, but can not therefore be understood as the limitation of the utility model patent range. It should be pointed out that for ordinary skilled person in the art, without departing from the utility model concept, several modifications and improvements can be made, which belong to the protection range of the utility model. Therefore, the protection range of the utility model patent should be subject to the appended claims.

Claims

1. A power tube clamping strip, characterized in that, include: The pressure strip body and the connecting structure are provided at one end of the pressure strip body. When the pressure strip body presses onto the surface of the power tube, the bottom end of the connecting structure is connected to the corresponding component, thereby enabling the power tube to be stably fixed to the surface of the component. The power tube pressure bar also includes a buffer structure, which is disposed on the bottom surface of the pressure bar body. When the pressure bar body presses onto the surface of the power tube, the buffer structure is disposed between the pressure bar body and the corresponding component, thereby realizing an elastic connection between the pressure bar body and the component. The buffer structure includes an elastic element. One end of the elastic element is connected to the bottom surface of the pressure strip body, and the other end of the elastic element extends a predetermined distance away from the pressure strip body. When the pressure strip body presses against the power tube, the end of the elastic element away from the pressure strip body abuts against the surface of the component, thereby realizing an elastic connection between the pressure strip body and the surface of the component.

2. The power tube pressure bar according to claim 1, characterized in that, The buffer structure also includes a fixing member, which is disposed on one side surface of the pressure strip body corresponding to the elastic member. One end of the fixing member is connected to the pressure strip body, and the other end of the fixing member is connected to the end of the elastic member facing the pressure strip body.

3. The power tube pressure bar according to claim 2, characterized in that, The elastic element is a spring of a preset size. One end of the spring is fixedly connected to the pressure bar body by the fixing element, and the other end of the spring extends a preset distance away from the pressure bar body to abut against the surface of the corresponding element.

4. The power tube pressure bar according to claim 3, characterized in that, The fastener is configured as a fastening bolt, which extends from the top surface of the pressure strip body to the bottom surface of the pressure strip body and connects to the corresponding end of the spring.

5. The power tube clamping strip according to claim 4, characterized in that, The connecting structure is provided with a hinge portion, which is located at one end of the connecting structure and is hinged to the corresponding end of the pressure strip body.

6. The power tube clamping strip according to claim 5, characterized in that, The connection structure is also provided with a clearance groove corresponding to the hinge part, and the hinge end of the pressure strip body can be accommodated in the clearance groove.

7. The power tube clamping strip according to claim 6, characterized in that, The pressure strip body has a fastening part at one end facing away from the connecting structure. The fastening part is bent towards the bottom side relative to the pressure strip body to form a folded plate structure. When the pressure strip body presses onto the surface of the power tube, the fastening part is fastened to the surface of the power tube.

8. The power tube clamping strip according to claim 7, characterized in that, The fastening part is also provided with a number of anti-slip protrusions, which are provided on the bottom end face of the fastening part. Thus, when the fastening part is fastened to the surface of the power tube, the anti-slip protrusions abut against the surface of the power tube.

9. The power tube pressure bar according to claim 8, characterized in that, The main body of the pressure strip is also provided with a curved part, which is located in the middle of the plate surface of the main body of the pressure strip, thereby forming an arched structure in the middle of the main body of the pressure strip.

10. The power tube clamping strip according to claim 9, characterized in that, The pressure strip body is also provided with a number of heat dissipation fins, which are arranged in parallel and equidistantly on the top side surface of the pressure strip body, thereby forming a wind-cooled heat dissipation structure.

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