Automotive optocoupler packaging structure

Abstract

The utility model discloses a vehicular optocoupler packaging structure, which relates to the technical field of optocouplers and comprises an operating platform and a circuit board, and a connecting mechanism for fixing an optocoupler body is arranged at the top of the circuit board. Through the fixing mechanism, according to different lengths of circuit boards needing to be installed, the limiting block is moved, one end of the pressing plate is pressed, the spring is extruded, the other end of the pressing plate is lifted, the pressing plate is moved to the position above the circuit boards, the pressing plate is loosened, the spring is reset, the other end of the pressing plate is pressed downwards, and the effect that the circuit boards are fixed to the operation table is achieved. According to the utility model, through the connecting mechanism, the optocoupler body is inserted into the clamping groove through the clamping part, the clamping part can be clamped into the clamping block through the convex clamping groove, and then the joint of the clamping part and the clamping block is welded through the spot welding gun, so that the clamping part and the clamping block are fixed more stably, and the optocoupler body is prevented from falling off from the circuit board when a vehicle is in a shaking state; therefore, the product performance is influenced.

Description

Technical Field

[0001] The utility model relates to the technical field of optical coupling, in particular to an optical coupling packaging structure for a vehicle. Background Art

[0002] Optocoupler is also called photoelectric isolator or optocoupler, or optocoupler for short. It is a device that uses light as a medium to transmit electrical signals. It usually includes a light-emitting end and a receiving end packaged in the same tube shell. When an electrical signal is added to the input end, the infrared emitting chip emits light, and the output photosensitive chip generates a photocurrent after receiving the light, which flows out from the output end, thereby realizing the conversion of electricity, light and electricity. Optocouplers are widely used in digital circuits because of their small size, long life, no contact, strong anti-interference ability, high insulation strength between output and input, and unidirectional signal transmission.

[0003] However, the bottom surface of the optocoupler pins on the market is designed to be a smooth full-plane, and the pin contact area is small. When used in a car, the car is prone to shaking, which can easily cause the optocoupler pins to become detached from the solder, thereby affecting the performance of the product and requiring the circuit board on which the optocoupler is installed to be repaired, making its use cost higher.

[0004] Based on this, a vehicle-use optocoupler packaging structure is now provided to eliminate the drawbacks of existing devices. Utility Model Content

[0005] The utility model aims to provide a vehicle optical coupler packaging structure to solve the problem that when the vehicle is in a shaking state, the optical coupler pins are easily separated from the solder.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] The automotive optocoupler packaging structure comprises an operating table and a circuit board. The circuit board is placed on the top of the operating table. A fixing mechanism for fixing the circuit board is provided on the top of the operating table. A connecting mechanism for fixing the optocoupler body is provided on the top of the circuit board.

[0008] On the basis of the above technical solutions, the present invention also provides the following optional technical solutions:

[0009] In an optional scheme: the fixing mechanism includes a limit slot, a limit block, a connecting rod, a spring, a pressure plate, a fixing sleeve and a screw. The limit slots are opened on both sides of the top of the operating table. The inner wall of the limit slot is slidably connected to the limit block. The top of the limit block is fixedly connected to the connecting rod. The surface of the connecting rod is provided with a spring. The top of the connecting rod is slidably connected to the pressure plate. The top of the spring cooperates with the pressure plate. The top of the connecting rod is provided with a fixing sleeve, and the inner wall of the connecting rod is threaded with a screw.

[0010] In an optional solution, the inner wall size of the limiting groove matches the outer wall size of the limiting block.

[0011] In an optional solution: the bottom of the limiting block is convex.

[0012] In an optional solution: the connecting mechanism includes a fixed plate, a card block, a card slot, a card joint and an optocoupler body, the top surface of the circuit board is fixedly connected to the fixed plate, one side of the fixed plate is fixedly connected to the card block, the surface of the card block is provided with a card slot, the inner wall of the card slot is slidably connected to the card joint, the interior of the card slot is convex, and one side of the card joint is fixedly connected to the optocoupler body.

[0013] In an optional solution: a ceramic heat sink is provided on the top of the optocoupler body, and a heat dissipation window is provided on one side of the optocoupler body.

[0014] In an optional solution: a spot welding gun is provided on one side of the operating table.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0016] 1. The utility model uses a fixing mechanism, a fixing sleeve is inserted on the connecting rod, and the screw is turned. The screw passes through the fixing sleeve and is connected to the connecting rod, so that the fixing sleeve is fixed to the connecting rod to prevent the pressure plate from falling off. According to the different lengths of the circuit board to be installed, the limit block is moved to slide the fixing mechanism to the side of the circuit board, press one end of the pressure plate, squeeze the spring, lift the other end of the pressure plate, move the pressure plate to the top of the circuit board, release the pressure plate, reset the spring, and press the other end of the pressure plate downward, thereby achieving the effect of fixing the circuit board on the operating table.

[0017] 2. The utility model uses a connecting mechanism to insert the optical coupler body into the card slot through a snap fit, and the snap fit can be snapped into the card block through the convex card slot, and then the connection between the snap fit and the card block is welded by a spot welding gun, so that the fixation of the snap fit and the card block is more stable, preventing the optical coupler body from falling off the circuit board when the car is in a shaking state, thereby affecting the product performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the utility model.

[0019] Figure 2 It is a schematic diagram of the fixing mechanism structure of the utility model.

[0020] Figure 3 It is a schematic diagram of the structure of the heating sleeve and the rubber storage tube matching each other in the utility model.

[0021] Figure 4 It is a structural schematic diagram of the glue supply mechanism of the utility model.

[0022] Notes on the figure numbers: 1. operating table; 2. circuit board; 3. spot welding gun; 4. fixing mechanism; 401. limiting groove; 402. limiting block; 403. connecting rod; 404. spring; 405. pressure plate; 406. fixing sleeve; 407. screw; 5. connecting mechanism; 501. fixing plate; 502. clamping block; 503. clamping groove; 504. clamping; 505. optocoupler body; 6. ceramic heat sink; 7. heat dissipation window. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0024] Example 1

[0025] In one embodiment, Figure 1 - Figure 4 As shown, the automotive optocoupler packaging structure includes an operating table 1 and a circuit board 2. The circuit board 2 is placed on the top of the operating table 1. A fixing mechanism 4 for fixing the circuit board 2 is provided on the top of the operating table 1, which is used to fix the circuit board 2 on the operating table 1. A connecting mechanism 5 for fixing the optocoupler body 505 is provided on the top of the circuit board 2, which is used to fix the optocoupler body 505 on the circuit board 2.

[0026] In one embodiment, Figure 2 As shown, the fixing mechanism 4 includes a limiting groove 401, a limiting block 402, a connecting rod 403, a spring 404, a pressure plate 405, a fixing sleeve 406 and a screw 407. The limiting grooves 401 are provided on both sides of the top of the operating table 1. The inner wall of the limiting groove 401 is slidably connected to the limiting block 402, so that the limiting block 402 can slide in the limiting groove 401. The top of the limiting block 402 is fixedly connected to the connecting rod 403. The surface of the connecting rod 403 is sleeved with a spring 404. The top of the connecting rod 403 is slidably connected to the pressure plate 405. The top of the spring 404 cooperates with the pressure plate 405. The top of the connecting rod 403 is provided with a fixing sleeve 406, so that the fixing sleeve 406 6 can be inserted into the connecting rod 403, and the inner wall of the connecting rod 403 is threadedly connected with a screw 407. When the screw 407 is turned, the screw 407 passes through the fixing sleeve 406 and is connected to the connecting rod 403, so that the fixing sleeve 406 is fixed to the connecting rod 403 to prevent the pressing plate 405 from falling off. According to the different lengths of the circuit board 2 to be installed, the limit block 402 is moved to make the fixing mechanism 4 slide to the side of the circuit board 2, press one end of the pressing plate 405, squeeze the spring 404, and lift the other end of the pressing plate 405, move the pressing plate 405 to the top of the circuit board 2, release the pressing plate 405, reset the spring 404, and press the other end of the pressing plate 405 downward, so that the circuit board 2 is fixed on the operating table 1.

[0027] In one embodiment, Figure 2 As shown, the inner wall size of the limit groove 401 is consistent with the outer wall size of the limit block 402. When the limit block 402 slides inside the limit groove 401, the limit groove 401 can limit the sliding of the limit block 402 to prevent the limit block 402 from shaking inside the limit groove 401.

[0028] In one embodiment, Figure 2 As shown, the bottom of the limiting block 402 is convex, and the convex limiting block 402 can prevent it from falling out of the limiting groove 401.

[0029] In one embodiment, Figure 3 - Figure 4 As shown, the connection mechanism 5 includes a fixing plate 501, a block 502, a slot 503, a snap 504 and an optical coupler body 505. The fixing plate 501 is fixedly connected to the top surface of the circuit board 2. The block 502 is fixedly connected to one side of the fixing plate 501. The surface of the block 502 is provided with a slot 503. The inner wall of the slot 503 is slidably connected with the snap 504. The interior of the slot 503 is convex. One side of the snap 504 An optocoupler body 505 is fixedly connected, and the optocoupler body 505 is inserted into the card slot 503 through the card joint 504. The card joint 504 can be inserted into the card block 502 through the convex card slot 503. The connection between the card joint 504 and the card block 502 is welded by a spot welding gun 3 to make the fixation of the card joint 504 and the card block 502 more stable, thereby preventing the optocoupler body 505 from falling off from the circuit board 2 when the car is in a shaking state, thereby affecting the performance of the product.

[0030] Example 2

[0031] In one embodiment, Figure 3 As shown, a ceramic heat sink 6 is disposed on the top of the optocoupler body 505 , and a heat dissipation window 7 is disposed on one side of the optocoupler body 505 . The ceramic heat sink 6 and the heat dissipation window 7 can make the optocoupler body 505 have a better heat dissipation effect and be more durable.

[0032] In one embodiment, Figure 1 As shown, a spot welding gun 3 is provided on one side of the operating table 1 for welding the optical coupler body 505 on the circuit board 2 .

[0033] Working principle: The above embodiment discloses a car optical coupler packaging structure, wherein, when in use, the fixing sleeve 406 is inserted into the connecting rod 403, and the screw 407 is turned. The screw 407 penetrates the fixing sleeve 406 and connects with the connecting rod 403, thereby fixing the fixing sleeve 406 to the connecting rod 403 to prevent the pressure plate 405 from falling off. According to the different lengths of the circuit board 2 to be installed, the limit block 402 is moved to slide the fixing mechanism 4 to the side of the circuit board 2, and one end of the pressure plate 405 is pressed to squeeze the spring 404 to lift the other end of the pressure plate 405, and move the pressure plate 405 to Above the circuit board 2, release the pressure plate 405 to reset the spring 404, and press the other end of the pressure plate 405 downward to fix the circuit board 2 on the operating table 1, and insert the optical coupler body 505 into the card slot 503 through the card engagement 504, and the card engagement 504 can be inserted into the card block 502 through the convex card slot 503, and then the connection between the card engagement 504 and the card block 502 is welded by the spot welding gun 3, so that the fixation of the card engagement 504 and the card block 502 is more stable, thereby preventing the optical coupler body 505 from falling off from the circuit board 2 when the car is in a shaking state, thereby affecting the performance of the product.

[0034] The above is only a specific implementation of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any person skilled in the art who is familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. A vehicle-use optical coupler packaging structure, comprising an operating table (1) and a circuit board (2), wherein the circuit board (2) is placed on the top of the operating table (1), and characterized in that: The top of the operating table (1) is provided with a fixing mechanism (4) for fixing the circuit board (2), and the top of the circuit board (2) is provided with a connecting mechanism (5) for fixing the optical coupler body (505).

2. The automotive optocoupler packaging structure according to claim 1, characterized in that: The fixing mechanism (4) comprises a limiting groove (401), a limiting block (402), a connecting rod (403), a spring (404), a pressure plate (405), a fixing sleeve (406) and a screw (407). The limiting grooves (401) are provided on both sides of the top of the operating table (1). The inner wall of the limiting groove (401) is slidably connected to the limiting block (402). The top of the limiting block (402) is fixedly connected to the connecting rod (403). The surface of the connecting rod (403) is sleeved with a spring (404). The top of the connecting rod (403) is slidably connected to the pressure plate (405). The top of the spring (404) cooperates with the pressure plate (405). The top of the connecting rod (403) is provided with a fixing sleeve (406). The inner wall of the connecting rod (403) is threadedly connected to the screw (407).

3. The automotive optocoupler packaging structure according to claim 2, characterized in that: The inner wall size of the limiting groove (401) matches the outer wall size of the limiting block (402).

4. The automotive optocoupler packaging structure according to claim 2, characterized in that: The bottom of the limiting block (402) is convex.

5. The automotive optocoupler packaging structure according to claim 1, characterized in that: The connection mechanism (5) comprises a fixing plate (501), a clamping block (502), a clamping slot (503), a clamping joint (504) and an optical coupler body (505); the fixing plate (501) is fixedly connected to the top surface of the circuit board (2); the clamping block (502) is fixedly connected to one side of the fixing plate (501); a clamping slot (503) is provided on the surface of the clamping block (502); the clamping joint (504) is slidably connected to the inner wall of the clamping slot (503); the interior of the clamping slot (503) is convex; and the optical coupler body (505) is fixedly connected to one side of the clamping joint (504).

6. The automotive optocoupler packaging structure according to claim 5, characterized in that: A ceramic heat sink (6) is provided on the top of the optical coupler body (505), and a heat dissipation window (7) is provided on one side of the optical coupler body (505).

7. The automotive optocoupler packaging structure according to claim 1, characterized in that: A spot welding gun (3) is provided on one side of the operating table (1).

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