High-protection counting relay

Abstract

The high-protection counting relay comprises a shell, a power supply plate, an integrated plate, a display plate, a nixie tube, a control switch and a label, the power supply plate and the integrated plate are respectively and electrically connected with the display plate, the shell comprises a panel side, the label is attached to the panel side and is limited, and the control switch is arranged on the panel side. The display side of the nixie tube and the operation side of the control switch respectively extend to the panel side and are hidden below the sign, control of numerical value changes on the display side of the nixie tube is formed through operation execution of the operation side, and display and control of the counting relay are replaced by the nixie tube and the touch switch, so that the display and the control of the display side of the nixie tube are achieved. According to the technical scheme of the utility model, the sign is synchronously limited on the panel side in a bonding manner, and the whole panel side is sealed, so that during operation, reliable control can be realized on the sign, dust, dirt and water can be prevented from entering the counting relay through the sign, and even if dirt appears, the dirt can be conveniently cleaned at the position of the sign without entering the counting relay.

Description

Technical Field

[0001] The utility model relates to the technical field of counting relays, in particular to a high-protection counting relay. Background Art

[0002] A counting relay, also known as a counter, uses a single-chip microcomputer circuit and a high-performance counting chip, and has the advantages of a wide counting range, forward / reverse counting, multiple counting methods and counting signal inputs, and stable and reliable counting performance. It is widely used in industrial automation control.

[0003] Some of the current counting relays on the market require simple counting display on the counting relay and can perform simple addition and subtraction control. To achieve convenient use, generally only a display screen and operation keys are involved on the control panel side. The specific design required is: the display screen is independently set, the operation keys are distributed on one side of the display screen and adopt the style of a DIP switch. That is, the electrical connection side of the DIP switch extends into the counting relay and forms an electrical connection with the circuit board, while the operation side of the DIP switch extends to the position of the operation panel. Synchronously, on some counting relays on the control panel, a switchable protective cover will be designed around the operation side of the DIP switch;

[0004] In use, although after the protective cover is involved, when the protective cover is closed, it can play a certain protective role for the DIP switch on the operation panel side. However, in the actual use process, operators generally do not immediately close the protective cover for more convenient operation of the counting relay. Usually, after use, they will not immediately close the protective cover again (that is, after closing each time, when using again, it needs to be reopened. At the same time, the limit of the protective cover on the counting relay is through a buckle. After long-term buckling operations, loosening and other situations will occur). Therefore, when the protective cover is not closed several times or many times, it is very likely that, for example, the habit of not closing it will occur. As a result, the operation side of the DIP switch will always be exposed, making it exposed for a long time and prone to dust ingress; in addition, when operators are actually operating, sometimes they will directly operate on the DIP switch with dirty hands. Therefore, after long-term use, dust, oil stains, water stains, etc. will exist on the DIP switch, making it difficult to clean, and even entering the counting relay along with the DIP switch, which greatly affects the service life of the counting relay. Summary of the Invention

[0005] In view of the above deficiencies, the utility model provides a counting relay that can improve the protection performance and can be easily cleaned even after being soiled.

[0006] To achieve the above object, the utility model adopts a high-protection counting relay, which includes a housing, a power supply board, an integrated board, and a display board arranged in the housing. The power supply board and the integrated board are electrically connected to the display board respectively. The housing includes a panel side. The counting relay further includes a digital tube, a control switch, and a label attached to and limited on the panel side, which are electrically connected to the display board. The digital tube includes a display side, and the control switch includes an operation side;

[0007] The digital tube and the control switch are respectively arranged in the housing, and the display side of the digital tube and the operation side of the control switch extend to the panel side respectively and are hidden under the label. The control switch matches the digital tube. Through the operation of the operation side of the control switch, a control for the numerical value change on the display side of the digital tube is formed.

[0008] The beneficial effects of the above structure are as follows: By replacing the display and control parts of the counting relay with a digital tube and a touch switch, and at the same time, one side of the digital tube and the touch switch is electrically connected to the display board. The display side involved in the digital tube and the operation side involved in the control switch extend to the panel side position of the housing respectively. Synchronously, a design of attaching a label to the panel side of the housing of the counting relay is adopted, that is, through the design of bonding the label to the panel side, the panel side is completely sealed. Thus, when the user operates the counting relay, it can be directly carried out on the label, that is, by pressing the corresponding position of the operation side of the touch switch on the label. The numerical value on the digital tube can also be displayed through the label after being powered on. This ensures that the user can achieve reliable control of the counting relay, and at the same time, through the function of the label, it can prevent the situation of dust, dirt, and water entering the counting relay. At the same time, since the operation of the touch switch is carried out on the label, even if there is dirt or the like, it can be conveniently cleaned at the position of the label and will not enter the inside of the counting relay.

[0009] The utility model is further arranged such that the label is attached to the panel side of the housing through an adhesive, and a display area corresponding to the display side of the digital tube and an operation area corresponding to the operation side of the control switch are respectively formed on the label.

[0010] Through the above, the label can be reliably fixed and limited on the panel side. At the same time, by involving the display area and the operation area on the label, the reliability of the design of the counting relay can be further ensured.

[0011] The present utility model is further configured such that the number of digital tubes is two. The two digital tubes include a set value display digital tube and a count value display digital tube. The control switches include a set value setting switch for controlling the set value display digital tube and a count value adjustment switch for controlling the count value display digital tube. The display side of the set value display digital tube is distributed in the upper area of the panel side, and the display side of the count value display digital tube is distributed in the lower area of the panel side. The set value setting switch is distributed in the area between the display side of the set value display digital tube and the display side of the count value display digital tube, and the count value adjustment switch is distributed on one side of the display side of the count value display digital tube and away from the set value setting switch.

[0012] With the above settings, since the existing counting relay involves two parts for set value display and count value display, the present utility model involves a set value display digital tube and a count value display digital tube for the digital tubes, and synchronously involves a set value setting switch and a count value adjustment switch for the control switch part. This enables the counting relay of the present utility model to not only involve the two parts for set value display and count value display, but also involve switches for separately controlling these two parts, thereby making the control of the counting relay of the present utility model reliable and reasonable.

[0013] The present utility model is further configured such that the set value display digital tube and the count value display digital tube further include a digital tube welding side, and both the set value display digital tube and the count value display digital tube are electrically connected to the display board through the digital tube welding side.

[0014] The present utility model is further configured such that both the set value display digital tube and the count value display digital tube are 4-digit digital tubes. The number of set value setting switches corresponds to the number of digits of the set value display digital tube, and the number of count value adjustment switches corresponds to the number of digits of the count value display digital tube. The control switches are tactile switches.

[0015] With the above settings, it can ensure the reliability of the design of the counting relay of the present utility model, and there will be no situation where the unreasonable design of the number of digits affects the data display. Moreover, the setting of the set value setting switch and the count value adjustment switch can achieve the reliability of control.

[0016] The present utility model is further configured such that the display board includes a digital tube control circuit, a tactile switch control circuit, and pin headers. The digital tube control circuit includes an 8-bit shift register, digital tube LEDs 1, 2, and resistors R1 - R8. The tactile switch control circuit includes resistors R9 - R11 and tactile switches S1 - S9.

[0017] Pin 11 of the digital tube LED1 and pin 11 of the digital tube LED2 are commonly connected to one end of the resistor R1. Pin 7 of the digital tube LED1 and pin 7 of the digital tube LED2 are commonly connected to one end of the resistor R2. Pin 4 of the digital tube LED1 and pin 4 of the digital tube LED2 are commonly connected to one end of the resistor R3. Pin 2 of the digital tube LED1 and pin 2 of the digital tube LED2 are commonly connected to one end of the resistor R4. Pin 1 of the digital tube LED1 and pin 1 of the digital tube LED2 are commonly connected to one end of the resistor R5. Pin 10 of the digital tube LED1 and pin 10 of the digital tube LED2 are commonly connected to one end of the resistor R6. Pin 5 of the digital tube LED1 and pin 5 of the digital tube LED2 are commonly connected to one end of the resistor R7. Pin 3 of the digital tube LED1 and pin 3 of the digital tube LED2 are commonly connected to one end of the resistor R8.

[0018] Pin 12 of the digital tube LED1 is connected to pin 1 of the pin header. Pin 9 of the digital tube LED1 is connected to pin 2 of the pin header. Pin 8 of the digital tube LED1 is connected to pin 3 of the pin header. Pin 6 of the digital tube LED1 is connected to pin 4 of the pin header. Pin 12 of the digital tube LED2 is connected to pin 7 of the pin header. Pin 9 of the digital tube LED2 is connected to pin 5 of the pin header. Pin 8 of the digital tube LED2 is connected to pin 6 of the pin header. Pin 6 of the digital tube LED2 is connected to pin 6 of the pin header.

[0019] The other end of the resistor R1 is connected to pin 3 of the 8-bit shift register. The other end of the resistor R2 is connected to pin 4 of the 8-bit shift register. The other end of the resistor R3 is connected to pin 5 of the 8-bit shift register. The other end of the resistor R4 is connected to pin 6 of the 8-bit shift register. The other end of the resistor R5 is connected to pin 10 of the 8-bit shift register. The other end of the resistor R6 is connected to pin 11 of the 8-bit shift register. The other end of the resistor R7 is connected to pin 12 of the 8-bit shift register. The other end of the resistor R8 is connected to pin 13 of the 8-bit shift register. Pins 1 and 2 of the 8-bit shift register are commonly connected to pin 11 of the pin header. Pin 8 of the 8-bit shift register is commonly connected to pin 12 of the pin header. Pins 9 and 14 of the 8-bit shift register are commonly connected to the power supply VCC. Pin 7 of the 8-bit shift register is grounded.

[0020] One end of the touch switch S1, one end of the touch switch S2, and one end of the touch switch S3 are commonly connected to pin 18 of the cable. One end of the touch switch S4, one end of the touch switch S5, and one end of the touch switch S6 are commonly connected to pin 19 of the cable. One end of the touch switch S7, one end of the touch switch S8, and one end of the touch switch S9 are commonly connected to pin 20 of the cable. The other end of the touch switch S1, the other end of the touch switch S4, and the other end of the touch switch S7 are commonly connected to pin 15 of the cable. The other end of the touch switch S2, the other end of the touch switch S5, and the other end of the touch switch S8 are commonly connected to pin 16 of the cable. The other end of the touch switch S3, the other end of the touch switch S6, and the other end of the touch switch S9 are commonly connected to pin 17 of the cable. Pin 13 of the cable is connected to the power supply VCC, and pin 14 of the cable is grounded.

[0021] Through the above description of the display board for the digital tube control circuit, the touch switch control circuit, and the pin header, when the counting relay involved in the present invention uses the digital tube and the touch switch to replace the existing ones, it can ensure that corresponding control and drive can be carried out inside the counting relay, thereby further improving the design reliability. Brief Description of the Drawings

[0022] Figure 1 is the circuit schematic diagram of the digital tube control circuit in the specific embodiment of the present invention;

[0023] Figure 2 is the circuit schematic diagram of the touch switch control circuit in the specific embodiment of the present invention;

[0024] Figure 3 is the circuit schematic diagram of the pin header in the specific embodiment of the present invention;

[0025] Figure 4 is the three-dimensional schematic diagram of the counting relay in the specific embodiment of the present invention;

[0026] Figure 5 is the exploded view of the counting relay in the specific embodiment of the present invention;

[0027] Figure 6 is the three-dimensional schematic diagram of the counting relay after removing the housing and the nameplate in the specific embodiment of the present invention;

[0028] Figure 7 is the three-dimensional schematic diagram of the nameplate in the specific embodiment of the present invention. Detailed Embodiment

[0029] As Figures 1-7As shown in the figure, a specific embodiment of the utility model is a high-protection counting relay, which includes a housing 1, a power supply board 3, an integrated board 5, and a display board 4 arranged in the housing 1. An electrical connection is formed between the power supply board 3 and the integrated board 5 and the display board 4 respectively. The housing 1 includes a panel side 11. The counting relay further includes a digital tube, a control switch, and a label 2 electrically connected to the display board and limited on the panel side 11. The digital tube includes a display side b, and the control switch includes an operation side a;

[0030] The digital tube and the control switch are respectively arranged in the housing 1, and the display side b on the digital tube and the operation side a on the control switch respectively extend to the panel side 11 and are hidden under the label 2. The control switch matches the digital tube. Through the operation of the operation side a on the control switch, a control for the numerical change on the display side b of the digital tube is formed.

[0031] In the above, by replacing the display and control parts of the counting relay with a digital tube and a touch switch, and at the same time, one side of the digital tube and the touch switch is electrically connected to the display board 4. The display side b involved in the digital tube and the operation side a involved in the control switch respectively extend to the panel side 11 of the housing 1. Synchronously, a design of attaching a label 2 to the panel side 11 of the housing 1 of the counting relay is adopted, that is, a design of bonding the label 2 to the panel side 11 is adopted to completely seal the panel side 11. Thus, when the user operates the counting relay, the operation can be directly carried out on the label 2, that is, by pressing the position corresponding to the operation side a of the touch switch on the label 2. The numerical value on the digital tube can also be displayed through the label 2 after being powered on. This ensures that the user can reliably control the counting relay, and at the same time, through the function of the label 2, it can prevent the situation of dust, dirt, and water entering the counting relay. At the same time, since the operation of the touch switch is carried out on the label 2, even if dirt and other situations occur, it can be conveniently cleaned at the position of the label 2 and will not enter the inside of the counting relay.

[0032] As Figures 4-5 shown in FIGS. 6 and 7, the label 2 is attached to the panel side 11 of the housing 1 through an adhesive, and a display area 21 corresponding to the display side b on the digital tube and an operation area 22 corresponding to the operation side a on the control switch are respectively formed on the label 2.

[0033] As Figures 4-7As shown in the figure, the number of digital tubes is two. The two digital tubes include a set value display digital tube 9 and a count value display digital tube 8. The control switches include a set value setting switch 7 for controlling the set value display digital tube 9 and a count value adjustment switch 6 for controlling the count value display digital tube 8. The display side b of the set value display digital tube 9 is distributed in the upper area of the panel side 11, and the display side b of the count value display digital tube 8 is distributed in the lower area of the panel side 11. The set value setting switch 7 is distributed in the area between the display side b of the set value display digital tube 9 and the display side b of the count value display digital tube 8. The count value adjustment switch 6 is distributed on one side of the display side b of the count value display digital tube 8 and is far from the set value setting switch 7.

[0034] As Figures 5-6 shown, the above-mentioned set value display digital tube 9 and count value display digital tube 8 also include a digital tube welding side. Both the set value display digital tube 9 and the count value display digital tube 8 are electrically connected to the display board 4 through the digital tube welding side.

[0035] As Figures 5-7 shown, the above-mentioned set value display digital tube 9 and count value display digital tube 8 are both 4-digit digital tubes. The number of set value setting switches 7 corresponds to the number of digits of the set value display digital tube 9, and the number of count value adjustment switches 6 corresponds to the number of digits of the count value display digital tube 8. The control switches are touch switches.

[0036] As Figures 1-3 shown, the above-mentioned display board 4 includes a digital tube control circuit, a touch switch control circuit, and pin headers. The digital tube control circuit includes an 8-bit shift register, digital tube LEDs 1, 2, and resistors R1 - R8. The touch switch control circuit includes resistors R9 - R11 and touch switches S1 - S9;

[0037] The pin 11 of digital tube LED1 and the pin 11 of digital tube LED2 are commonly connected to one end of resistor R1. The pin 7 of digital tube LED1 and the pin 7 of digital tube LED2 are commonly connected to one end of resistor R2. The pin 4 of digital tube LED1 and the pin 4 of digital tube LED2 are commonly connected to one end of resistor R3. The pin 2 of digital tube LED1 and the pin 2 of digital tube LED2 are commonly connected to one end of resistor R4. The pin 1 of digital tube LED1 and the pin 1 of digital tube LED2 are commonly connected to one end of resistor R5. The pin 10 of digital tube LED1 and the pin 10 of digital tube LED2 are commonly connected to one end of resistor R6. The pin 5 of digital tube LED1 and the pin 5 of digital tube LED2 are commonly connected to one end of resistor R7. The pin 3 of digital tube LED1 and the pin 3 of digital tube LED2 are commonly connected to one end of resistor R8;

[0038] Pin 12 of the digital tube LED1 is connected to pin 1 of the pin header, pin 9 of the digital tube LED1 is connected to pin 2 of the pin header, pin 8 of the digital tube LED1 is connected to pin 3 of the pin header, pin 6 of the digital tube LED1 is connected to pin 4 of the pin header, pin 12 of the digital tube LED2 is connected to pin 7 of the pin header, pin 9 of the digital tube LED2 is connected to pin 5 of the pin header, pin 8 of the digital tube LED2 is connected to pin 6 of the pin header, and pin 6 of the digital tube LED2 is connected to pin 6 of the pin header;

[0039] The other end of resistor R1 is connected to pin 3 of the 8-bit shift register, the other end of resistor R2 is connected to pin 4 of the 8-bit shift register, the other end of resistor R3 is connected to pin 5 of the 8-bit shift register, the other end of resistor R4 is connected to pin 6 of the 8-bit shift register, the other end of resistor R5 is connected to pin 10 of the 8-bit shift register, the other end of resistor R6 is connected to pin 11 of the 8-bit shift register, the other end of resistor R7 is connected to pin 12 of the 8-bit shift register, the other end of resistor R8 is connected to pin 13 of the 8-bit shift register. Pins 1 and 2 of the 8-bit shift register are commonly connected to pin 11 of the pin header, pin 8 of the 8-bit shift register is commonly connected to pin 12 of the pin header, pins 9 and 14 of the 8-bit shift register are commonly connected to the power supply VCC, and pin 7 of the 8-bit shift register is grounded;

[0040] One end of the touch switch S1, one end of the touch switch S2, and one end of the touch switch S3 are commonly connected to pin 18 of the flexible cable. One end of the touch switch S4, one end of the touch switch S5, and one end of the touch switch S6 are commonly connected to pin 19 of the flexible cable. One end of the touch switch S7, one end of the touch switch S8, and one end of the touch switch S9 are commonly connected to pin 20 of the flexible cable. The other end of the touch switch S1, the other end of the touch switch S4, and the other end of the touch switch S7 are commonly connected to pin 15 of the flexible cable. The other end of the touch switch S2, the other end of the touch switch S5, and the other end of the touch switch S8 are commonly connected to pin 16 of the flexible cable. The other end of the touch switch S3, the other end of the touch switch S6, and the other end of the touch switch S9 are commonly connected to pin 17 of the flexible cable. Pin 13 of the flexible cable is connected to the power supply VCC, and pin 14 of the flexible cable is grounded.

Claims

1. A high-protection counting relay, comprising a housing, a power supply board, an integrated board, and a display board disposed within the housing, wherein the power supply board and the integrated board are electrically connected to the display board respectively, and the housing includes a panel side, characterized in that: The counting relay further includes a digital tube, a control switch, and a sign plate that are electrically connected to the display section. The digital tube includes a display side, and the control switch includes an operation side. The sign plate is attached to the panel side and is limited in position. The digital tube and the control switch are respectively arranged inside the housing. The display side of the digital tube and the operation side of the control switch respectively extend towards the panel side and are hidden under the sign plate. The control switch is matched with the digital tube. By operating the operation side of the control switch, control is formed for the numerical value change on the display side of the digital tube.

2. The high-protection counting relay according to claim 1, wherein: The sign plate is attached to the panel side of the housing through an adhesive. The sign plate is respectively formed with a display area corresponding to the display side of the digital tube and an operation area corresponding to the operation side of the control switch.

3. The high-protection counting relay according to claim 2, wherein: The number of the digital tubes is two. The two digital tubes include a set value display digital tube and a count value display digital tube. The control switch includes a set value setting switch for controlling the set value display digital tube and a count value adjustment switch for controlling the count value display digital tube.

4. The high-protection counting relay according to claim 3, characterized in that: The display side of the set value display digital tube is distributed in the upper area of the panel side, and the display side of the count value display digital tube is distributed in the lower area of the panel side. The set value setting switch is distributed in the area between the display side of the set value display digital tube and the display side of the count value display digital tube. The count value adjustment switch is distributed on one side of the display side of the count value display digital tube and is far from the set value setting switch.

5. The high-protection counting relay according to claim 3 or 4, characterized in that: The set value display digital tube and the count value display digital tube further include a digital tube welding side. The set value display digital tube and the count value display digital tube are both electrically connected to the display section through the digital tube welding side.

6. The high-protection counting relay according to claim 3 or 4, characterized in that: Both the set value display digital tube and the count value display digital tube are 4-digit digital tubes. The number of the set value setting switches corresponds to the number of digits of the set value display digital tube, and the number of the count value adjustment switches corresponds to the number of digits of the count value display digital tube. The control switch is a touch switch.

7. The high-protection counting relay according to claim 1, 2, 3 or 4, characterized in that: The display section includes a digital tube control circuit, a touch switch control circuit, and pin headers. The digital tube control circuit includes an 8-bit shift register, digital tube LEDs 1 and 2, and resistors R1 - R8. The touch switch control circuit includes resistors R9 - R11 and touch switches S1 - S9. Pin 11 of the digital tube LED1 and pin 11 of the digital tube LED2 are commonly connected to one end of the resistor R1. Pin 7 of the digital tube LED1 and pin 7 of the digital tube LED2 are commonly connected to one end of the resistor R2. Pin 4 of the digital tube LED1 and pin 4 of the digital tube LED2 are commonly connected to one end of the resistor R3. Pin 2 of the digital tube LED1 and pin 2 of the digital tube LED2 are commonly connected to one end of the resistor R4. Pin 1 of the digital tube LED1 and pin 1 of the digital tube LED2 are commonly connected to one end of the resistor R5. Pin 10 of the digital tube LED1 and pin 10 of the digital tube LED2 are commonly connected to one end of the resistor R6. Pin 5 of the digital tube LED1 and pin 5 of the digital tube LED2 are commonly connected to one end of the resistor R7. Pin 3 of the digital tube LED1 and pin 3 of the digital tube LED2 are commonly connected to one end of the resistor R8; Pin 12 of the digital tube LED1 is connected to pin 1 of the pin header. Pin 9 of the digital tube LED1 is connected to pin 2 of the pin header. Pin 8 of the digital tube LED1 is connected to pin 3 of the pin header. Pin 6 of the digital tube LED1 is connected to pin 4 of the pin header. Pin 12 of the digital tube LED2 is connected to pin 7 of the pin header. Pin 9 of the digital tube LED2 is connected to pin 5 of the pin header. Pin 8 of the digital tube LED2 is connected to pin 6 of the pin header. Pin 6 of the digital tube LED2 is connected to pin 6 of the pin header; The other end of the resistor R1 is connected to pin 3 of the 8-bit shift register. The other end of the resistor R2 is connected to pin 4 of the 8-bit shift register. The other end of the resistor R3 is connected to pin 5 of the 8-bit shift register. The other end of the resistor R4 is connected to pin 6 of the 8-bit shift register. The other end of the resistor R5 is connected to pin 10 of the 8-bit shift register. The other end of the resistor R6 is connected to pin 11 of the 8-bit shift register. The other end of the resistor R7 is connected to pin 12 of the 8-bit shift register. The other end of the resistor R8 is connected to pin 13 of the 8-bit shift register. Pins 1 and 2 of the 8-bit shift register are commonly connected to pin 11 of the pin header. Pin 8 of the 8-bit shift register is commonly connected to pin 12 of the pin header. Pins 9 and 14 of the 8-bit shift register are commonly connected to the power supply VCC. Pin 7 of the 8-bit shift register is grounded; One end of the touch switch S1, one end of the touch switch S2, and one end of the touch switch S3 are commonly connected to pin 18 of the flexible cable. One end of the touch switch S4, one end of the touch switch S5, and one end of the touch switch S6 are commonly connected to pin 19 of the flexible cable. One end of the touch switch S7, one end of the touch switch S8, and one end of the touch switch S9 are commonly connected to pin 20 of the flexible cable. The other end of the touch switch S1, the other end of the touch switch S4, and the other end of the touch switch S7 are commonly connected to pin 15 of the flexible cable. The other end of the touch switch S2, the other end of the touch switch S5, and the other end of the touch switch S8 are commonly connected to pin 16 of the flexible cable. The other end of the touch switch S3, the other end of the touch switch S6, and the other end of the touch switch S9 are commonly connected to pin 17 of the flexible cable. Pin 13 of the flexible cable is connected to the power supply VCC. Pin 14 of the flexible cable is grounded.

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