A controller with self-detection function

Abstract

This utility model discloses a controller with a self-testing function, comprising a controller body. The controller body has a self-testing mechanism on its side, the mechanism including a housing fixedly connected to the side wall of the controller body. A cover is fixedly installed at the end of the housing away from the controller body, the cover having a mounting hole. A buzzer is installed within the mounting hole, the bottom of the buzzer being located inside the housing. A pressure-sensitive switch electrically connected to the bottom of the buzzer is provided, and a triggering mechanism acting on the pressure-sensitive switch is provided on the housing. A double-position fixing mechanism is provided between the buzzer and the cover. This utility model, through the double-position fixing mechanism, allows for repositioning and fixing of the buzzer, preventing the pressure block from constantly triggering the pressure-sensitive switch, thus preventing the buzzer from continuously ringing and remaining inactive.

Description

Technical Field

[0001] This utility model relates to the field of controller technology, specifically a controller with self-detection function. Background Technology

[0002] Currently, electric forklifts use motors to drive the equipment to operate normally. However, electric forklifts operate for extended periods of time, which causes the motor controller to generate a lot of heat. Sustained high temperatures can damage the motor controller, reducing its lifespan and requiring maintenance. This increases the cost of using the motor controller, increases the instability of the equipment during use, and is detrimental to safe operation, posing safety hazards.

[0003] According to Chinese patent document CN220673653U, a controller with a self-test function is disclosed. The controller includes a controller body, a motor mounted on the lower surface of the controller body, and the controller body and the motor are electrically connected to each other. A drive motor control unit is provided on one side of the motor and is fixedly connected to the lower surface of the controller body. The output end of the motor is connected to the input end of the drive motor control unit. A mounting bracket is fixedly installed on the lower surface of the controller body, and a self-test mechanism is fixedly installed on one side of the controller body. The controller with a self-test function provided by this utility model can monitor the temperature inside the controller body through the self-test mechanism provided on the equipment, so as to avoid damage to the controller due to high temperature. When the temperature rises, a buzzer can be used to remind the staff.

[0004] However, when the above device is in use, after the mercury expands due to heat and triggers the pressure sensor by the squeezing block, the mercury takes a long time to dissipate heat. This causes the squeezing block to continuously trigger the pressure sensor, resulting in the buzzer constantly sounding and unable to be turned off. To address this, a controller with a self-detection function is proposed. Utility Model Content

[0005] The purpose of this invention is to provide a controller with a self-detection function to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a controller with a self-testing function, comprising a controller body, characterized in that: a self-testing mechanism is provided on the side end of the controller body, the self-testing mechanism comprising a housing, the housing being fixedly connected to the side wall of the controller body, a cover being fixedly installed on the end of the housing away from the controller body, the cover having a mounting hole, a buzzer being provided in the mounting hole, the bottom of the buzzer being located inside the housing, a pressure sensing switch electrically connected to the bottom of the buzzer being provided, a triggering mechanism acting on the pressure sensing switch being provided on the housing, and a double-position fixing mechanism being provided between the buzzer and the cover; the double-position fixing mechanism consists of a second spring, a slider, and a pusher. The device consists of a block and a locking pin. Two sliding grooves are symmetrically distributed on both sides of the mounting hole within the cover body. A slider is slidably installed within each groove. A second spring is fixedly connected to the end of the slider away from the mounting hole, and the other end of the second spring is fixedly connected to the inner wall of the groove. A pushing block is fixedly connected to the upper end of the slider. An adapter groove extending to the outer wall of the cover body is formed on the top wall of the groove, and the pushing block slides into the adapter groove. A locking pin is fixedly connected to the end of the slider near the mounting hole. A through hole extending to the mounting hole is formed on the inner wall of the groove, and the through hole slides into the locking pin. A first locking groove and a second locking groove are formed on both sides of the tail of the buzzer, and the locking pin is respectively adapted to the first and second locking grooves.

[0007] As a further preferred embodiment of this technical solution, the triggering mechanism consists of heat-conducting fins, a connecting column, a piston, and a pressure block. The piston is slidably installed inside the housing, and a pressure block is fixedly connected to one end of the piston near the cover. A connecting column is fixedly installed on the side wall of the housing near the controller body, with one end of the connecting column extending into the interior of the housing and the other end extending into the interior of the controller body. Heat-conducting fins are fixedly connected to both ends of the connecting column, and a storage groove adapted to the heat-conducting fins is provided on the side wall of the controller body.

[0008] As a further preferred embodiment of this technical solution, a sealed cavity is formed between the end of the piston away from the cover and the inner wall of the housing, and the sealed cavity is filled with mercury.

[0009] As a further preferred embodiment of this technical solution, three guide posts are fixedly connected to the side wall of the piston near the cover, and three sleeves are fixedly connected to one end of the cover near the piston. The three sleeves correspond one-to-one with the three guide posts. The inner diameter of the sleeve is equal to the outer diameter of the guide post. A stop block is fixedly installed at the bottom of the inner cavity of the sleeve, and a first spring is also fixedly installed at the bottom of the inner cavity of the sleeve. The first spring is sleeved on the outer ring of the stop block.

[0010] As a further preferred embodiment of this technical solution, the three guide pillars are arranged in a ring array.

[0011] As a further preferred embodiment of this technical solution, the outer ring of the piston is provided with multiple annular grooves, and a sealing ring is fixedly connected in the annular grooves.

[0012] As a further preferred embodiment of this technical solution, both the heat-conducting fins and the connecting posts are made of copper.

[0013] This utility model provides a controller with self-detection function, which has the following advantages:

[0014] This invention utilizes a heat conduction structure formed by two heat-conducting fins and a connecting column to transfer heat from the controller body to the mercury inside the sealed cavity. This causes the mercury to expand, thereby squeezing the piston. The pressure block on the piston then presses against the pressure sensor switch, triggering a buzzer to alert the operator. Simultaneously, a dual-position fixing mechanism allows for repositioning and fixing of the buzzer, preventing the pressure block from constantly triggering the pressure sensor switch and causing the buzzer to ring incessantly without being turned off. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0016] Figure 2 This is an internal schematic diagram of the self-inspection mechanism in this utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the cover body in this utility model;

[0018] Figure 4 This is a cross-sectional schematic diagram of the cover body in this utility model;

[0019] Figure 5 In this utility model Figure 4 A diagram illustrating the breakdown;

[0020] In the diagram: 1. Controller body; 2. Self-testing mechanism; 3. Housing; 4. Cover; 5. Heat-conducting fins; 6. Connecting column; 7. Sealing cavity; 8. Piston; 9. Sealing ring; 10. Pressure block; 11. Guide column; 12. Sleeve; 13. First spring; 14. Stop block; 15. Pressure sensing switch; 16. Slide groove; 17. Second spring; 18. Slider; 19. Push block; 20. Locking post; 21. Buzzer; 22. First locking slot; 23. Second locking slot; 24. Through hole; 25. Mounting hole; 26. Adapter groove. Detailed Implementation

[0021] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0022] This utility model provides a technical solution: such as Figures 1 to 5 As shown, in this embodiment, a controller with self-testing function includes a controller body 1. A self-testing mechanism 2 is provided on the side of the controller body 1. The self-testing mechanism 2 includes a housing 3. The housing 3 is fixedly connected to the side wall of the controller body 1. A cover 4 is fixedly installed on the end of the housing 3 away from the controller body 1. A mounting hole 25 is provided on the cover 4. A buzzer 21 is provided in the mounting hole 25. The bottom of the buzzer 21 is located inside the housing 3. A pressure sensing switch 15 electrically connected to the bottom of the buzzer 21 is provided. A triggering mechanism acting on the pressure sensing switch 15 is provided on the housing 3. A double-position fixing mechanism is provided between the buzzer 21 and the cover 4.

[0023] The dual-position fixing mechanism consists of a second spring 17, a slider 18, a pusher block 19, and a locking post 20. Two sliding grooves 16 are symmetrically distributed on both sides of the mounting hole 25 inside the cover 4. A slider 18 is slidably mounted within each groove 16. The end of the slider 18 furthest from the mounting hole 25 is fixedly connected to the second spring 17, and the other end of the second spring 17 is fixedly connected to the inner wall of the groove 16. The upper end of the slider 18 is fixedly connected to the pusher block 19. The top wall of the cover 4 has an adapter groove 26 extending to the outer wall of the cover 4. The push block 19 slides and engages with the adapter groove 26. The end of the slider 18 near the mounting hole 25 is fixedly connected to the locking post 20. The inner wall of the slide groove 16 has a through hole 24 extending to the mounting hole 25. The through hole 24 slides and engages with the locking post 20. The tail of the buzzer 21 has a first locking groove 22 and a second locking groove 23 on both sides. The locking post 20 is adapted to the first locking groove 22 and the second locking groove 23 respectively.

[0024] The triggering mechanism consists of heat-conducting fins 5, connecting posts 6, pistons 8, and pressure blocks 10. Pistons 8 are slidably installed inside the housing 3. The end of pistons 8 near the cover 4 is fixedly connected to the pressure blocks 10. The end of pistons 8 away from the cover 4 forms a sealed cavity 7 with the inner wall of the housing 3. The sealed cavity 7 is filled with mercury. Connecting posts 6 are fixedly installed on the side wall of the housing 3 near the controller body 1. One end of connecting posts 6 extends into the interior of the housing 3, and the other end of connecting posts 6 extends into the interior of the controller body 1. Heat-conducting fins 5 are fixedly connected to both ends of connecting posts 6. Storage grooves that are compatible with heat-conducting fins 5 are provided on the side wall of the controller body 1.

[0025] Among them, three guide posts 11 are fixedly connected to the side wall of the piston 8 near the cover 4. The three guide posts 11 are arranged in a ring array. Three sleeves 12 are fixedly connected to one end of the cover 4 near the piston 8. The three sleeves 12 correspond one-to-one with the three guide posts 11. The inner diameter of the sleeve 12 is equal to the outer diameter of the guide post 11. A stop block 14 is fixedly installed at the bottom of the inner cavity of the sleeve 12. A first spring 13 is also fixedly installed at the bottom of the inner cavity of the sleeve 12. The first spring 13 is sleeved on the outer ring of the stop block 14.

[0026] The piston 8 has multiple annular grooves on its outer ring, and a sealing ring 9 is fixedly connected inside the annular grooves.

[0027] The sealing ring 9 can improve the sealing between the piston 8 and the inner wall of the housing 3.

[0028] Both the heat-conducting fins 5 and the connecting posts 6 are made of copper.

[0029] This utility model provides a controller with self-detection function, and its specific working principle is as follows:

[0030] When the controller body 1 generates high temperatures during prolonged operation, the self-testing mechanism 2 installed on one side of the controller body 1 will alert the operator. When high temperatures are generated inside the controller body 1, heat is transferred to the mercury in the sealed cavity 7 through the heat conduction structure formed by the two heat-conducting fins 5 and the connecting column 6, causing the mercury to expand and thus compress the piston 8. As the piston 8 moves towards the cover 4, the guide column 11 on the piston 8 slides into the sleeve 12. With the movement of the piston 8, the pressure block 10 on the piston 8 compresses the pressure sensing switch 15. Before the pressure sensor switch 15 is squeezed, the guide post 11 will first contact the first spring 13. The piston 8 first needs to overcome the elastic force of the first spring 13. As the internal temperature of the controller body 1 continues to increase, the piston 8 will continue to move towards the cover 4, thereby triggering the pressure sensor switch 15 and alerting the staff through the buzzer 21. In order to prevent the pressure block 10 from continuously moving and damaging the pressure sensor switch 15, the sleeve 12 is provided with a stop block 14, which can work with the guide post 11 to limit the position of the piston 8, thereby protecting the pressure sensor switch 15.

[0031] Among them, the pressure sensing switch 15 is model SCH-27.

[0032] The above content is the technology disclosed in Chinese patent document CN220673653U.

[0033] It should be noted that when the locking pin 20 is in the first locking slot 22, the position of the pressure sensing switch 15 just meets the above technical requirements.

[0034] Based on this, when the mercury expands due to heat, causing the pressure block 10 to trigger the pressure sensing switch 15, the mercury needs a long time to dissipate heat. This will cause the pressure block 10 to continuously trigger the pressure sensing switch 15, which in turn will cause the buzzer 21 to keep beeping and cannot be turned off.

[0035] At this time, the staff can press down on the two push blocks 19 to make the two locking pins 20 move away from each other. After the locking pins 20 leave the first slot 22 on the buzzer 21, the buzzer 21 is pulled out a certain distance, and the push blocks 19 are released to allow the locking pins 20 to enter the second slot 23, thereby fixing the buzzer 21 again. At this time, the buzzer 21 will move outward a certain distance, thereby making the pressure sensing switch 15 at the bottom of the buzzer 21 move away from the pressure block 10, thus preventing the pressure block 10 from always triggering the pressure sensing switch 15.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A controller with self-detection function, comprising a controller body (1), characterized in that: The controller body (1) is provided with a self-testing mechanism (2) on its side. The self-testing mechanism (2) includes a housing (3). The housing (3) is fixedly connected to the side wall of the controller body (1). A cover (4) is fixedly installed on the end of the housing (3) away from the controller body (1). An installation hole (25) is provided on the cover (4). A buzzer (21) is provided in the installation hole (25). The bottom of the buzzer (21) is located inside the housing (3). A pressure sensing switch (15) is provided at the bottom of the buzzer (21) and is electrically connected to it. A triggering mechanism that acts on the pressure sensing switch (15) is provided on the housing (3). A double-position fixing mechanism is provided between the buzzer (21) and the cover (4). The dual-position fixing mechanism consists of a second spring (17), a slider (18), a push block (19), and a locking post (20). Two sliding grooves (16) are provided inside the cover (4), symmetrically distributed on both sides of the mounting hole (25). A slider (18) is slidably installed in each sliding groove (16). The end of the slider (18) away from the mounting hole (25) is fixedly connected to the second spring (17), and the other end of the second spring (17) is fixedly connected to the inner wall of the sliding groove (16). A push block (19) is fixedly connected to the upper end of the slider (18). The sliding groove (17)... The top wall of the 6) is provided with an adapter groove (26) extending to the outer wall of the cover (4). The push block (19) slides and engages with the adapter groove (26). The slider (18) is fixedly connected to a locking post (20) at one end near the mounting hole (25). The inner wall of the slide groove (16) is provided with a through hole (24) extending to the mounting hole (25). The through hole (24) slides and engages with the locking post (20). The buzzer (21) is provided with a first locking groove (22) and a second locking groove (23) on both sides of its tail. The locking post (20) is adapted to the first locking groove (22) and the second locking groove (23) respectively.

2. The controller with self-detection function according to claim 1, wherein: The triggering mechanism consists of heat-conducting fins (5), connecting posts (6), pistons (8), and pressure blocks (10). The piston (8) is slidably installed inside the housing (3). The pressure block (10) is fixedly connected to one end of the piston (8) near the cover (4). The connecting posts (6) are fixedly installed on the side wall of the housing (3) near the controller body (1). One end of the connecting posts (6) extends into the interior of the housing (3), and the other end of the connecting posts (6) extends into the interior of the controller body (1). Heat-conducting fins (5) are fixedly connected to both ends of the connecting posts (6). A storage groove that is compatible with the heat-conducting fins (5) is opened on the side wall of the controller body (1).

3. The controller with self-detection function according to claim 2, wherein: The piston (8) at the end away from the cover (4) forms a sealed cavity (7) with the inner wall of the housing (3), and the sealed cavity (7) is filled with mercury.

4. The controller with self-detection function according to claim 2, wherein: Three guide posts (11) are fixedly connected to the side wall of the piston (8) near the cover (4). Three sleeves (12) are fixedly connected to one end of the cover (4) near the piston (8). The three sleeves (12) correspond one-to-one with the three guide posts (11). The inner diameter of the sleeve (12) is equal to the outer diameter of the guide post (11). A stop block (14) is fixedly installed at the bottom of the inner cavity of the sleeve (12). A first spring (13) is also fixedly installed at the bottom of the inner cavity of the sleeve (12). The first spring (13) is sleeved on the outer ring of the stop block (14).

5. A controller with self-detection function according to claim 4, characterized in that: The three guide pillars (11) are arranged in a ring array.

6. The controller with self-detection function according to claim 2, wherein: The outer ring of the piston (8) has multiple annular grooves, and a sealing ring (9) is fixedly connected in the annular grooves.

7. The controller with self-detection function according to claim 2, wherein: Both the heat-conducting fins (5) and the connecting posts (6) are made of copper.

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