Crystal briquetting assembly

Abstract

The utility model discloses a crystal pressing block assembly, the front end of an elastic pressing block is integrally connected with the upper end of a supporting vertical block, the rear end of the elastic pressing block obliquely extends downwards to form a pressing part, the lower end of the pressing part is located above the lower end of the supporting vertical block, a metal elastic sheet is accommodated in an elastic sheet accommodating cavity, and an upper tightening through hole and a lower tightening through hole are opposite to each other. The connecting position of the supporting vertical block and the elastic pressing block is arranged in the mounting notch, the lower end of the supporting vertical block extends to the position below the lower pressing plate, the pressing part abuts against the rear portion of the lower pressing plate, the screw body sequentially penetrates through the screw mounting hole, the upper tightening screw hole and the lower tightening screw hole from top to bottom in an inserted mode, and the nut abuts against the top of the elastic pressing block. The protection fence wraps the downward pressing fence and the supporting vertical blocks. The elastic pressing block has the elastic restoring force with the adjustable range, the buffering effect is better, the mos pipe can be effectively prevented from being crushed, and normal use of the mos pipe is guaranteed.

Description

Technical Field

[0001] The utility model relates to the field of electronic circuit accessories, and particularly relates to a crystal pressing block assembly. Background Art

[0002] During the use of the MOS transistor, it is necessary to press it onto the heat sink through a pressing assembly for heat dissipation. Referring to Figures 1 to 3 , the current pressing assembly 400 includes an upper protective shell 410, a metal pressing sheet 420, a lower pressing shell 430 and a tightening screw (not shown in the figure). Upper through holes 411, intermediate holes 421 and lower through holes 431 are correspondingly formed in the upper protective shell 410, the metal pressing sheet 420 and the lower pressing shell 430. A strip-shaped protrusion 422 is arranged at the top of the metal pressing sheet 420 to enhance the strength of the metal pressing sheet 420. A receiving groove 412 for receiving the strip-shaped protrusion 422 is arranged at the bottom of the upper protective shell 410. During use, one end of the lower pressing plate 430 presses the MOS transistor, and the tightening screw sequentially passes through the upper through hole 411, the intermediate hole 421 and the lower through hole 431 and then is screwed into a tightening screw hole on the heat sink. The upper protective shell 410, the metal pressing sheet 420 and the lower pressing shell 430 are superposed and pressed against each other, so as to lock the MOS transistor to the heat sink. When the pressing assembly 400 is used, due to poor buffering performance, it is easy to cause damage to the MOS transistor. Content of the Utility Model

[0003] The purpose of the utility model is to provide a crystal pressing block assembly to solve the above technical problems.

[0004] The technical solution provided by the present utility model is: a crystal pressing block assembly, including an upper protective shell made of insulating material, a lower pressing shell made of insulating material, a metal elastic sheet and a tightening screw. The metal elastic sheet includes a supporting upright block and a pressing block. The supporting upright block is placed vertically up and down. The front end of the pressing block is integrally connected to the upper end of the supporting upright block. The rear end of the pressing block extends downward and obliquely to form a pressing portion. The lower end of the pressing portion is located above the lower end of the supporting upright block. An upper tightening through hole is formed on one side of the pressing block close to the supporting upright block. The lower pressing shell includes a lower pressing plate whose shape and size match that of the pressing block and a lower pressing fence protruding upward from the periphery of the lower pressing plate. A elastic sheet accommodating cavity is formed between the lower pressing plate and the lower pressing fence. An installation notch is formed at the front end of the lower pressing fence. A lower tightening through hole is formed on the lower pressing plate close to the installation notch. The metal elastic sheet is accommodated in the elastic sheet accommodating cavity. The upper tightening through hole and the lower tightening through hole are directly opposite to each other. The connection portion of the supporting upright block and the pressing block is placed in the installation notch. The lower end of the supporting upright block extends below the lower pressing plate. The pressing portion abuts against the rear portion of the lower pressing plate. The upper protective shell includes a top plate and a protective fence extending downward from the periphery of the top plate. A screw installation hole is formed on the top plate directly opposite to the upper tightening through hole. The tightening screw includes a nut and a screw body integrally connected to the bottom of the nut. The diameter of the nut is less than or equal to the diameter of the screw installation hole. The screw body is sequentially inserted through the screw installation hole, the upper tightening screw hole and the lower tightening screw hole from top to bottom. The nut abuts against the top of the pressing block. The protective fence wraps outside the lower pressing fence and the supporting upright block.

[0005] Preferably, guiding and positioning blocks are respectively protruded on both sides of the installation notch of the lower pressing fence.

[0006] Preferably, a elastic sheet notch groove penetrating through the rear end of the pressing portion from front to back is formed in the middle of the pressing portion. The elastic sheet notch groove divides the pressing portion into two elastic sheet pressing arms. The two elastic sheet pressing arms are symmetrically distributed on the left rear and right rear of the upper tightening through hole. Correspondingly, a pressing plate notch groove is formed on the lower pressing plate directly opposite to the elastic sheet notch groove. Pressing plate stress arms are formed on both sides of the pressing plate notch groove of the lower pressing plate. The elastic sheet pressing arms abut against the corresponding pressing plate stress arms.

[0007] Preferably, a clamping block is protruded downward on the front side of the pressing plate notch groove at the bottom of the lower pressing plate. A clamping bar is protruded downward on the bottom of the top plate directly opposite to the front end of the elastic sheet notch groove. A clamping hook is protruded forward at the lower end of the clamping bar. The clamping bar passes through the front end of the elastic sheet notch groove and the front end of the pressing plate notch groove. The clamping hook is buckled with the bottom of the clamping block.

[0008] Preferably, a guiding ring is protruded upward on the outer side of the edge of the screw installation hole on the top wall of the top plate.

[0009] Compared with the prior art, in the crystal pressing block assembly of the present utility model, by gradually tightening the tightening screw, the pressing part of the elastic pressing block is used to push against the rear part of the pressing plate, thereby pressing the MOS transistor tightly. Since the elastic pressing block has an elastic restoring force with an adjustable range, the buffering effect is better, which can more effectively prevent the MOS transistor from being damaged and ensure the normal use of the MOS transistor. Description of the Drawings

[0010] Figure 1 Structural diagram of the existing pressing assembly; Structural schematic diagram of the present utility model

[0011] Figure 2 Exploded view of the existing pressing assembly from one angle.

[0012] Figure 3 Exploded view of the existing pressing assembly from another angle.

[0013] Figure 4 Structural diagram of the crystal pressing block assembly of the present utility model from one angle.

[0014] Figure 5 For Figure 4 Exploded view.

[0015] Figure 6 Structural diagram of the crystal pressing block assembly of the present utility model from another angle.

[0016] Figure 7 For Figure 6 Exploded view. Detailed Embodiment

[0017] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0018] Please refer to Figures 1 - 3 , this embodiment provides a technical solution: The crystal pressing block assembly 100 includes an upper protective shell 10 made of insulating material, a lower pressing shell 20 made of insulating material, a metal elastic sheet 30, and a tightening screw (not shown in the figure).

[0019] The metal elastic piece 30 includes a supporting vertical block 31 and an elastic pressing block 32. The supporting vertical block 31 is placed vertically up and down. The front end of the elastic pressing block 32 is integrally connected to the upper end of the supporting vertical block 31. The rear end of the elastic pressing block 32 extends obliquely downward to form a pressing part 321. The lower end of the pressing part 321 is located above the lower end of the supporting vertical block 31. An upper tightening through hole 322 is formed on one side of the elastic pressing block 32 close to the supporting vertical block 31.

[0020] The lower pressing shell 20 includes a lower pressing plate 21 whose shape and size match that of the elastic pressing block 32 and a lower pressing fence 22 protruding upward from the periphery of the lower pressing plate 21. An elastic piece accommodating cavity 201 is formed between the lower pressing plate 21 and the lower pressing fence 22. An installation notch 221 is formed at the front end of the lower pressing fence 22. A lower tightening through hole 211 is formed on the lower pressing plate 21 close to the installation notch 221. The metal elastic piece 30 is accommodated in the elastic piece accommodating cavity 201. The upper tightening through hole 322 and the lower tightening through hole 211 are directly opposite to each other. The connection part of the supporting vertical block 31 and the elastic pressing block 32 is placed in the installation notch 221. The lower end of the supporting vertical block 31 extends below the lower pressing plate 21. The pressing part 321 abuts against the rear part of the lower pressing plate 21. Guide positioning blocks 222 protrude from both sides of the lower pressing fence 22 at the installation notch 221.

[0021] The upper protective shell 10 includes a top plate 11 and a protective fence 12 extending downward from the periphery of the top plate 11. A screw installation hole 111 is formed on the top plate 11 directly opposite to the upper tightening through hole 322. A guide ring 112 protrudes upward from the outer side of the edge of the screw installation hole 111 on the top wall of the top plate 11.

[0022] The tightening screw 40 includes a nut 41 and a screw body 42 integrally connected to the bottom of the nut 41. The diameter of the nut 41 is less than or equal to the diameter of the screw installation hole 111. The screw body 42 is inserted through the screw installation hole 111, the upper tightening screw hole 322 and the lower tightening screw hole 211 from top to bottom in sequence. The nut 41 abuts against the top of the elastic pressing block 32. The protective fence 12 wraps outside the lower pressing fence 22 and the supporting vertical block 31.

[0023] Preferably, the middle of the pressing portion 321 is provided with a spring-type notch 3211 that runs through the rear end of the pressing portion 321 from front to back. The spring-type notch 3211 divides the pressing portion 321 into two spring-type pressure arms 3212. The two spring-type pressure arms 3212 are symmetrically distributed to the left and right rear of the upper tightening through-hole 322. Correspondingly, the lower pressing plate 21 is provided with a pressure plate notch 212 directly opposite the spring-type notch 3211. The lower pressing plate 21 forms pressure plate force arms 213 on both sides of the pressure plate notch 212. The spring-type pressure arms 3212 and the corresponding pressure plate force arms 213 press against each other, thereby making the force applied to the rear of the lower pressing plate 21 more uniform and improving the compression effect. The bottom of the two pressure plate force-bearing arms 213 is provided with a left-right force-concentrating boss 2131, so that the force of the pressure plate force-bearing arms 213 pressing the MOS tube is concentrated on the force-concentrating boss 2131. The rear wall of the protective fence 12 is provided with an I-shaped positioning boss 121 protruding toward the pressure plate notch 212.

[0024] Specifically, a clamping block 214 protrudes downward from the bottom of the lower pressure plate 21 in front of the pressure plate notch 212. A clamping strip 113 protrudes downward from the bottom of the top plate 11, facing the front end of the spring plate notch 3211. A hook 114 protrudes forward from the lower end of the clamping strip 113. The clamping strip 113 passes through the front end of the spring plate notch 3211 and the front end of the pressure plate notch 212. The hook 114 and the bottom of the clamping block 214 are interlocked. The clamping strip 113, the hook 114, and the clamping block 214 are interlocked, and the depth of the interlocking is deeper, making the interlocking more stable.

[0025] When the crystal pressing block assembly 100 of the present invention is used, the MOS tube is placed on the heat sink, and the two pressure plate force arms 213 are pressed against the top of the MOS tube. The support block 31 and the heat sink are pressed against each other. The heat sink is directly opposite the tightening through hole 211 and a tightening screw hole is tapped. The screw body 42 of the tightening screw 40 is screwed into the tightening screw hole and gradually tightened. At this time, the two spring pressure arms 3212 gradually press down the corresponding pressure plate force arms 213, so that the pressure plate force arms 213 press the MOS tube.

[0026] The crystal pressing block assembly of the utility model gradually tightens the tightening screw, thereby pushing the pressure plate force arm through the spring pressure arm, thereby pressing the MOS tube. Since the spring pressure arm has an elastic restoring force within an adjustable range, the buffering effect is better, which can more effectively prevent the MOS tube from being crushed and ensure the normal use of the MOS tube.

[0027] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A crystal compact component, characterized in that: It includes an upper protective case made of insulating material, a lower pressing case made of insulating material, a metal elastic sheet and a tightening screw. The metal elastic sheet includes a supporting upright block and an elastic pressing block. The supporting upright block is placed vertically up and down. The front end of the elastic pressing block is integrally connected to the upper end of the supporting upright block. The rear end of the elastic pressing block extends downward and obliquely to form a pressing portion. The lower end of the pressing portion is located above the lower end of the supporting upright block. An upper tightening through hole is formed on one side of the elastic pressing block close to the supporting upright block. The lower pressing case includes a lower pressing plate whose shape and size match that of the elastic pressing block and a lower pressing fence protruding upward from the periphery of the lower pressing plate. A elastic sheet accommodating cavity is formed between the lower pressing plate and the lower pressing fence. An installation notch is formed at the front end of the lower pressing fence. A lower tightening through hole is formed on the lower pressing plate close to the installation notch. The metal elastic sheet is accommodated in the elastic sheet accommodating cavity. The upper tightening through hole and the lower tightening through hole are directly opposite to each other. The connection part of the supporting upright block and the elastic pressing block is placed in the installation notch. The lower end of the supporting upright block extends below the lower pressing plate. The pressing portion abuts against the rear part of the lower pressing plate. The upper protective case includes a top plate and a protective fence extending downward from the periphery of the top plate. A screw installation hole is formed on the top plate directly opposite to the upper tightening through hole. The tightening screw includes a nut and a screw body integrally connected to the bottom of the nut. The diameter of the nut is less than or equal to the diameter of the screw installation hole. The screw body is inserted downward through the screw installation hole, the upper tightening screw hole and the lower tightening screw hole in sequence. The nut abuts against the top of the elastic pressing block. The protective fence wraps outside the lower pressing fence and the supporting upright block.

2. The crystal compact assembly according to claim 1, wherein: Guide positioning blocks are respectively protruded on both sides of the installation notch of the lower pressing fence.

3. The crystal compact assembly according to claim 1, wherein: An elastic sheet notch groove penetrating through the rear end of the pressing portion from front to back is formed in the middle of the pressing portion. The elastic sheet notch groove divides the pressing portion into two elastic sheet pressing arms. The two elastic sheet pressing arms are symmetrically distributed on the left rear and right rear of the upper tightening through hole. Correspondingly, a pressing plate notch groove is formed on the lower pressing plate directly opposite to the elastic sheet notch groove. Pressing plate stress arms are formed on both sides of the lower pressing plate at the pressing plate notch groove. The elastic sheet pressing arms and the corresponding pressing plate stress arms abut against each other.

4. The crystal compact assembly according to claim 3, characterized in that: A clamping block is protruded downward on the bottom of the lower pressing plate at the front side of the pressing plate notch groove. A clamping bar is protruded downward on the bottom of the top plate directly opposite to the front end of the elastic sheet notch groove. A clamping hook is protruded forward at the lower end of the clamping bar. The clamping bar passes through the front end of the elastic sheet notch groove and the front end of the pressing plate notch groove. The clamping hook and the bottom of the clamping block are buckled with each other.

5. The crystal compact assembly according to claim 1, characterized in that: A guiding ring is protruded upward on the top wall of the top plate at the outside of the edge of the screw installation hole.

Images