A high protection chip resistor

Abstract

The present invention relates to the field of patch resistors, and more specifically, to a high-protection patch resistor, comprising a resistor body and a baffle, wherein two baffles are provided and symmetrically arranged on both sides of the two resistor bodies, the front and rear ends of the two baffles are both abutted and connected with a rotating plate, a sliding hole is longitudinally provided in one side of the baffle where the rotating plate is connected, a rotating shaft is slidably connected inside the sliding hole, and the rotating shaft is longitudinally fixedly connected to the baffle on the same side, the two rotating plates on the same side are abutted against each other and a slot is provided at the upper end of the abutting side, and the front and rear parts of the two baffles away from each other are fixedly connected with a positioning plate through a bottom plate. The present invention clamps a heat sink on the resistor body, and the upper surface of the heat sink is in a wavy structure. When in use, the heat sink is used to expand the contact area between the resistor body and the air, which facilitates the rapid heat dissipation of the resistor body, avoids the resistor body from being in a high temperature state for a long time, and achieves a high protection effect.

Description

Technical Field

[0001] The invention relates to the field of chip resistors, in particular to a high-protection chip resistor. Background Art

[0002] Chip resistors, also called chip fixed resistors, are a type of metal glass glaze resistor. They are made by mixing metal powder and glass glaze powder and printing them on a substrate using screen printing. They are generally small in size, which can greatly save circuit space costs and make the design more refined.

[0003] At present, most chip resistors are an integral structure with a small area and poor heat dissipation effect. When working, the chip resistors are prone to being in a high temperature state for a long time, causing damage. In addition, solder paste is mostly used during welding to fix the chip resistors on the circuit board. When the chip electronics are placed on the solder paste, the solder paste is easily squeezed and easily diffused to the surrounding circuit boards, making it easy for the chip resistors to be connected to places that should not be connected, easily causing a short circuit on the circuit board. Summary of the invention

[0004] In view of the problems in the prior art, the present invention provides a high protection chip resistor.

[0005] The technical solution adopted by the present invention to solve its technical problem is: a high-protection chip resistor, including a resistor body and a baffle, wherein two baffles are provided and symmetrically arranged on both sides of the two resistor bodies, the front and rear ends of the two baffles are both abutted and connected with a rotating plate, a sliding hole is longitudinally opened in one side of the baffle where the rotating plate is connected, and a rotating shaft is slidably connected inside the sliding hole, and the rotating shaft is longitudinally fixedly connected to the baffle on the same side, the two rotating plates on the same side are abutted against each other and a slot is opened at the upper end of the abutting side, the front and rear parts of the two baffles away from the side are fixedly connected with a positioning plate through a bottom plate, the positioning plates are in a vertical state and a through slot is opened at the upper end, and the resistor body is provided with a plurality of locating plates, wherein the plurality of locating plates are ... The front and rear parts of both sides of the resistor body are fixedly connected with connecting plates, and the two connecting plates on the same side are commonly fixedly connected with a fixing plate on a side away from the resistor body, and the fixing plates are clamped on the upper ends of the two positioning plates on the same side, and the upper end of the resistor body is clamped with a heat sink, and the upper end of the heat sink is a wavy structure, and the middle parts of both sides of the heat sink are fixedly connected with a clamping plate, and the upper ends of the clamping plates are provided with sliding grooves, and the upper end openings of the sliding grooves are slidably connected with a movable plate, and the middle part of the lower end of the movable plate is fixedly connected with a slider, and the front and rear parts of the movable plate away from the heat sink are fixedly connected with plug-in blocks, and the plug-in blocks are plugged into the through grooves on the positioning plates on the same side.

[0006] Specifically, the middle parts of the front and rear sides of the heat sink are fixedly connected with a middle plate, the lower ends of the middle plates are fixedly connected with plug plates, the lower ends of the plug plates are concave structures and both sides of the lower ends are plugged into slots on the rotating plate on the same side.

[0007] Specifically, the inside of each of the slide grooves is clamped with a rubber block, each of the rubber blocks is against a slider on the same side, and a groove is formed in the middle of each of the rubber blocks.

[0008] Specifically, the sliders are all slidably connected in the sliding grooves below, the front and rear sides of the sliders are both raised, and the raised parts are all slidably connected in the inner walls of the sliding grooves.

[0009] Specifically, one end of the rotating shaft away from the baffle bar extends to the outside of the sliding hole, and the diameter of the one end of the rotating shaft away from the baffle bar is larger than the diameter of the one end connected to the baffle bar.

[0010] Specifically, the lower end of the rotating plate is flush with the lower end of the baffle bar, and one side of the baffle bar where the rotating plate is connected is in a semicircular structure and is located on the same center line as the connected rotating shaft.

[0011] Specifically, the size of the inserting blocks matches the size of the through slots in which they are located, and the width of the inserting blocks is one third of the width of the sliding slots.

[0012] Specifically, the clamping plates are all arranged horizontally, and the sides of the clamping plates away from the heat sink are clamped on the fixing plates on the same side.

[0013] Beneficial effects of the present invention:

[0014] (1) The present invention clamps a heat sink on the resistor body, and the upper surface of the heat sink is in a wavy structure. When in use, the heat sink is used to expand the contact area between the resistor body and the air, which facilitates the rapid heat dissipation of the resistor body and prevents the resistor body from being in a high temperature state for a long time, thereby achieving a high protection effect.

[0015] (2) The present invention provides baffles on both sides of the resistor body, and rotating plates are installed on the front and rear sides of the baffles. The two rotating plates on the same side are abutted against each other to form a frame structure that surrounds the periphery of the resistor body. During installation, the baffles and the rotating plates block the diffused solder paste to prevent the solder paste from being connected to other structures on the surrounding circuit board. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0017] Figure 1 A schematic diagram of the structure provided by the present invention;

[0018] Figure 2 A cutaway diagram provided for the present invention;

[0019] Figure 3 A schematic diagram of the structure of the baffle provided by the present invention;

[0020] Figure 4A schematic diagram of the structure of the heat sink provided by the present invention;

[0021] Figure 5 This is a schematic diagram of the card board structure provided by the present invention.

[0022] In the figure: 1. resistor body; 2. baffle; 3. rotating plate; 4. sliding hole; 5. rotating shaft; 6. slot; 7. bottom plate; 8. positioning plate; 9. through slot; 10. connecting plate; 11. fixing plate; 12. heat dissipation plate; 13. middle plate; 14. plug-in plate; 15. card plate; 16. slide groove; 17. moving plate; 18. slider; 19. plug-in block; 20. rubber block; 21. pull groove. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0024] like Figure 1-Figure 5 As shown, a high protection chip resistor described in the present invention comprises a resistor body 1 and a baffle 2, wherein the baffle 2 is provided with two and symmetrically arranged on both sides of the two resistor bodies 1, and the front and rear ends of the two baffles 2 are both abutted and connected with a rotating plate 3, and a sliding hole 4 is longitudinally opened in one side of the rotating plate 3 connected to the baffle 2, and a rotating shaft 5 is slidably connected inside the sliding hole 4, and the end of the rotating shaft 5 away from the baffle 2 extends to the outside of the sliding hole 4, and the diameter of the end of the rotating shaft 5 away from the baffle 2 is larger than the diameter of the end connected to the baffle 2, and the rotating shaft 5 is longitudinally fixedly connected to the baffle 2 on the same side, and the two rotating plates 3 on the same side are abutted against each other and a slot 6 is opened on the upper end of the abutting side, and the front and rear parts of the two baffles 2 away from each other are fixedly connected with a positioning plate 8 through a bottom plate 7, and the positioning plate 8 is in a vertical state and a through slot 9 is opened on the upper end, and the front and rear parts of both sides of the resistor body 1 are fixedly connected with connecting The connecting plate 10, the two connecting plates 10 on the same side are commonly fixedly connected with a fixing plate 11 on one side away from the resistor body 1, and the fixing plates 11 are clamped on the upper ends of the two positioning plates 8 on the same side, and the upper end of the resistor body 1 is clamped with a heat sink 12, and the upper end of the heat sink 12 is a wavy structure, and the middle parts of both sides of the heat sink 12 are fixedly connected with a clamping plate 15, and the clamping plates 15 are arranged horizontally, and the side of the clamping plate 15 away from the heat sink 12 is clamped on the fixing plate 11 on the same side, and the upper end of the clamping plate 15 is provided with a sliding groove 16, and the upper end opening of the sliding groove 16 is slidably connected with a moving plate 17, and the middle part of the lower end of the moving plate 17 is fixedly connected with a slider 18, and the front and rear parts of the side of the moving plate 17 away from the heat sink 12 are fixedly connected with an insert block 19, and the insert block 19 is inserted into the through groove 9 on the positioning plate 8 on the same side, so as to fix the heat sink 12 to the upper end of the resistor body 1 conveniently.

[0025] Specifically, the sliders 18 are slidably connected in the slide grooves 16 below, the front and rear sides of the sliders 18 are raised and the raised parts are slidably connected in the inner walls of the slide grooves 16, so as to facilitate the connection of the moving plate 17 to the card plate 15 and prevent the moving plate 17 from detaching from the card plate 15 when sliding.

[0026] Specifically, the lower end of the rotating plate 3 is flush with the lower end of the baffle 2, and one side of the rotating plate 3 connected to the baffle 2 is semicircular and located on the same center line as the connected rotating shaft 5, so that the rotating plate 3 can be rotated conveniently during disassembly and assembly.

[0027] Specifically, the size of the insert block 19 matches the size of the through slot 9 in which it is located, and the width of the insert block 19 is one third of the width of the slide slot 16, so that the insert block 19 can be easily pulled out of the through slot 9 during disassembly.

[0028] Specifically, the middle parts of the front and rear sides of the heat dissipation plate 12 are fixedly connected with a middle plate 13, and the lower ends of the middle plates 13 are fixedly connected with plug plates 14. The lower ends of the plug plates 14 are concave structures and both sides of the lower ends are inserted into the slots 6 on the rotating plates 3 on the same side, so as to fix the opposing sides of the two rotating plates 3 on the same side and prevent the rotating plates 3 from rotating at will.

[0029] Specifically, the inside of each of the slide grooves 16 is clamped with a rubber block 20 , and each of the rubber blocks 20 abuts against the slider 18 on the same side. A groove 21 is provided in the middle of each of the rubber blocks 20 to facilitate abutting against the slider 18 and ensure that the movable plate 17 is difficult to slide freely on the card plate 15 .

[0030] During installation, firstly, two baffles 2 are welded to the peripheral circuit board where the resistor body 1 is installed through solder paste, the rotating plate 3 is rotated, and the two rotating plates 3 on the same side are pressed together to form a frame structure, and a layer of solder paste is applied on part of the circuit board inside the frame structure, and then the resistor body 1 is glued to the solder paste. During this process, the fixed plate 11 on the resistor body 1 is clamped on the two positioning plates 8 on the same side, the movement trajectory of the resistor body 1 is fixed by the positioning plates 8, the heat sink 12 is clamped on the upper end of the resistor body 1, and the clamping plate 15 is clamped on the fixed plate 11, and the movable plate 17 is pushed away from the heat sink 12, and the plug 19 on the movable plate 17 is inserted into the positioning plate 8 on the same side. The heat sink 12 is fixed on the resistor body 1 in the through slot 9 at the end. When working, the heat on the resistor body 1 will be absorbed by the heat sink 12 and dissipated to the surrounding air through the heat sink 12 to achieve the purpose of heat dissipation and prevent the resistor body 1 from being in a high temperature state for a long time. When disassembling later, push the moving plate 17 in the reverse direction, pull the plug 19 out of the through slot 9, remove the heat sink 12 from the upper end of the resistor body 1, then slide one of the rotating plates 3 horizontally, and rotate the other rotating plate 3 on the same side, then push back the previous rotating plate 3, and rotate this rotating plate 3 to expose the front and back sides of the resistor body 1, and then use a tool to melt the solder paste at the lower end of the resistor body 1 to carry out the disassembly work.

[0031] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. A high protection chip resistor, comprising a resistor body (1) and a barrier strip (2), characterized in that: The baffle bars (2) are provided with two and are symmetrically arranged on both sides of the two resistor bodies (1); the front and rear ends of the two baffle bars (2) are both abutted and connected with a rotating plate (3); a sliding hole (4) is longitudinally opened in one side of the baffle bar (2) where the rotating plate (3) is connected; a rotating shaft (5) is slidably connected inside the sliding hole (4); the rotating shaft (5) is longitudinally fixedly connected to the baffle bar (2) on the same side; the two rotating plates (3) on the same side are abutted against each other and a slot (6) is opened at the upper end of the abutting side; the front and rear parts of the two baffle bars (2) on the side away from each other are fixedly connected with a positioning plate (8) through a bottom plate (7); the positioning plates (8) are in a vertical state and a through slot (9) is opened at the upper end; the front and rear parts of both sides of the resistor body (1) are fixedly connected with a connecting plate (10); the two connecting plates (10) on the same side are ) are fixedly connected to a fixing plate (11) on one side away from the resistor body (1), the fixing plate (11) is clamped on the upper ends of two positioning plates (8) on the same side, a heat sink (12) is clamped on the upper end of the resistor body (1), the upper end of the heat sink (12) is in a wavy structure, a clamping plate (15) is fixedly connected to the middle of both sides of the heat sink (12), a slide groove (16) is provided on the upper end of the clamping plate (15), a movable plate (17) is slidably connected to the upper opening of the slide groove (16), a slider (18) is fixedly connected to the middle of the lower end of the movable plate (17), an insert block (19) is fixedly connected to the front and rear parts of the side of the movable plate (17) away from the heat sink (12), and the insert block (19) is inserted into the through groove (9) on the positioning plate (8) on the same side; The middle parts of the front and rear sides of the heat dissipation plate (12) are fixedly connected to a middle plate (13), the lower ends of the middle plates (13) are fixedly connected to plug plates (14), the lower ends of the plug plates (14) are concave in structure and both sides of the lower ends are plugged into slots (6) on the rotating plate (3) on the same side.

2. A high protection chip resistor according to claim 1, characterized in that: The inside of each of the slide grooves (16) is clamped with a rubber block (20), each of the rubber blocks (20) abuts against a slider (18) on the same side, and a groove (21) is provided in the middle of each of the rubber blocks (20).

3. A high protection chip resistor according to claim 1, characterized in that: The sliders (18) are all slidably connected in the lower slide grooves (16); the front and rear sides of the sliders (18) are both raised, and the raised parts are all slidably connected in the inner wall of the slide grooves (16).

4. The high protection chip resistor according to claim 1, characterized in that: The end of the rotating shaft (5) away from the baffle (2) extends to the outside of the sliding hole (4), and the diameter of the end of the rotating shaft (5) away from the baffle (2) is larger than the diameter of the end connected to the baffle (2).

5. The high protection chip resistor according to claim 1, characterized in that: The lower end of the rotating plate (3) is flush with the lower end of the baffle (2); the side of the rotating plate (3) connected to the baffle (2) is in a semicircular structure and is located on the same center line as the connected rotating shaft (5).

6. The high protection chip resistor according to claim 1, characterized in that: The size of the insert block (19) matches the size of the through slot (9) in which it is located, and the width of the insert block (19) is one third of the width of the slide slot (16).

7. The high protection chip resistor according to claim 1, characterized in that: The clamping plates (15) are all arranged horizontally, and the sides of the clamping plates (15) away from the heat dissipation plate (12) are clamped on the fixing plate (11) on the same side.

Images