Circuit board for automatically detecting steps and adjusting slope of a treadmill

Abstract

The utility model discloses a circuit board for running machine automatic detection step number and regulation gradient, it includes circuit board body and sensor, and sensor is connected with circuit board body through pin and connecting structure, and connecting structure includes pin, pin slot group and pin hole. The pin slot group and pin hole of the present application are arranged on the circuit board, the welding position of pin is moved to the back, and the boss is arranged on the back and is used for guiding pin bending, when pin is bent and welded, the bending part width increases and cannot be easily extracted at pin hole and forms a protection to form double protection with the welding point, so that when the tension is received, the pin point is not easy to appear the situation of falling off, and the stability of pin connection is increased.

Description

Technical Field

[0001] This utility model relates to a treadmill circuit board, and more particularly to a circuit board for automatically detecting steps and adjusting the incline of a treadmill. Background Technology

[0002] A treadmill is a fitness machine that simulates running and walking. It can meet people's needs for running and walking indoors, help people improve their cardiopulmonary function, enhance leg muscle strength and endurance, and also play an important role in rehabilitation training and other fields.

[0003] During the adjustment process, the treadmill needs to use sensors to obtain the number of steps and the incline angle and feed the data back. During the adjustment process, the circuit board controls the start, stop and speed of the motor to adjust the speed of the running belt, and the incline of the treadmill is adjusted by adjusting the support angle.

[0004] When monitoring running steps, sensors are generally used to monitor tilt angle and steps. Since the sensor is an external structure, its signal transmission is connected using an F-type connector. The base of the F-type connector has pins, which need to be soldered to the circuit board for fixation. Current technology generally uses a structure that directly sets pin slots and solders the pins into the pin slots to fix the base of the F-type connector. After this structure is fixed, it is highly dependent on the solder joints. When subjected to external forces such as pulling, the solder joints may fall off, causing the pins to fall off and the device to lose its step monitoring function. Utility Model Content

[0005] Based on the shortcomings of existing technologies that use direct pin soldering for step counting sensors, which are highly dependent on solder joints and prone to solder joint detachment under external force, this utility model provides a circuit board for automatic step counting and incline adjustment in treadmills.

[0006] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows:

[0007] A circuit board for automatically detecting steps and adjusting the incline of a treadmill includes a circuit board body. Sensors are connected to the circuit board body to measure the number of rotations or the length of the conveyor belt and the treadmill's tilt angle. A connection structure is provided between the circuit board body and the sensors, including:

[0008] The connector has two pins for connecting to the sensor;

[0009] The connector has one end connected to the sensor via a signal line and the other end connected to the connector.

[0010] The pin slot group includes a first pin slot and a second pin slot located on both sides of the circuit board body.

[0011] A pin hole is provided through the circuit board and is located at the end of the first pin slot and the second pin slot;

[0012] The second pin slot includes two sets, both of which are located on the back edge of the circuit board body.

[0013] A boss is provided at the inner end of the second pin slot and its height is less than the depth of the second pin slot;

[0014] Two pins are respectively set in two pin slot groups. The pin is embedded in the first pin slot and bent through the pin hole, then embedded in the second pin slot and soldered. The pin is bent at the boss and fits against the end face of the boss to form a bent part. The width of the bent part is greater than the width of the pin hole.

[0015] Preferably, in the same pin slot group, the first pin slot and the second pin slot are located on the front and back sides of the circuit board body, respectively.

[0016] Preferably, in the two sets of pin slots, both first pin slots are located on the front or back of the circuit board body; or in the two sets of pin slots, the two first pin slots are located on the front or back of the circuit board body respectively.

[0017] Preferably, the second pin slot includes two pin slots, which start from the pin hole and extend in a direction parallel or perpendicular to the first pin slot.

[0018] Preferably, the connector is an F-type connector.

[0019] Preferably, the circuit board is also provided with two sets of quick-connect ports, one set for connecting to the power supply and the other set for connecting to the touch screen display.

[0020] Preferably, the sensor is a motor speed sensor or a conveyor belt rotation encoder, which is used to detect and measure the number of rotations or length of the conveyor belt and calculate the number of steps based on time and a preset step length. The other sensor is an tilt sensor.

[0021] Compared with the prior art, the advantages of this utility model are as follows: This application sets pin slots and pin holes on the circuit board, moves the pin soldering position to the back side, and sets a boss on the back side to guide the pin bending. When the pin is bent and soldered, the width of its bent part increases and it cannot be easily pulled out at the pin hole, forming a protective layer, thus forming a double protection with the soldering point. This makes it less likely for the soldering point of the pin to fall off when subjected to tension, increasing the stability of the pin connection. Attached Figure Description

[0022] The present invention will be further described in detail below with reference to the accompanying drawings and preferred embodiments. However, those skilled in the art will understand that these drawings are drawn only for the purpose of explaining the preferred embodiments and therefore should not be construed as limiting the scope of the present invention. Furthermore, unless specifically indicated, the drawings are only schematic representations of the composition or structure of the described objects and may contain exaggerated depictions, and the drawings are not necessarily drawn to scale.

[0023] Figure 1-3 This is a perspective view of the present application;

[0024] Figure 4-5 This is an exploded view of this application;

[0025] In the figure: 10, circuit board body; 20, 30, sensors; 40, connector; 401, first pin and second pin; 402, bending part; 50, pin slot group; 501, first pin slot; 502, pin hole; 503, second pin slot; 504, boss. Detailed Implementation

[0026] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Those skilled in the art will appreciate that these descriptions are merely descriptive and exemplary and should not be construed as limiting the scope of protection of the present invention.

[0027] It should be noted that similar labels in the following figures indicate similar items; therefore, once an item is defined in one figure, it may not be further defined and explained in subsequent figures. Example

[0028] This embodiment mainly describes the title of the circuit board used for automatically detecting steps and adjusting the incline of the treadmill, as follows:

[0029] Circuit boards used in treadmills to automatically detect steps and adjust the incline, such as Figure 1-5 As shown, the device includes a circuit board body 10, on which sensors 20 and 30 are connected for measuring the number of rotations or length of the conveyor belt and the tilt angle of the treadmill. A connection structure is provided between the circuit board body 10 and the sensors 20 and 30, and the connection structure includes:

[0030] Connector 40 has two pins 401 for connecting to sensors 20 and 30;

[0031] The connector has one end connected to the sensor 20 or 30 via a signal line, and the other end is threaded onto the connector 40.

[0032] The pin slot group 50 includes a first pin slot 501 and a second pin slot 503 located on both sides of the circuit board body 10.

[0033] A pin hole 502 is disposed through the circuit board and is located at the end of the first pin slot 501 and the second pin slot 503;

[0034] The second pin slot 503 includes two sets, both of which are located on the back edge of the circuit board body 10.

[0035] A boss 504 is provided at the inner end of the second pin slot 503 and its height is less than the depth of the second pin slot 503.

[0036] Two pins are respectively disposed within two pin slot groups 50. The pin is embedded in the first pin slot 501, bent through the pin hole 502, and then embedded in the second pin slot 503 and soldered. The pin is bent at the boss 504 and conforms to the end face of the boss 504 to form a bent portion 402. The width of the bent portion 402 is greater than the width of the pin hole 502. In this solution, the pin slot group 50 and the pin hole 502 are set on the circuit board, and the soldering position of the pin is moved to the back side. A boss 504 is set on the back side to guide the bending of the pin. After the pin is bent and soldered, the width of its bent portion 402 increases, making it difficult to pull out at the pin hole 502, thus forming a protective layer. This, together with the solder joint, forms double protection, making it less likely for the solder joint to fall off when subjected to tensile force, increasing the stability of the pin connection. It should be noted that in this embodiment, the solder joint is used for both fixing and electrical connection.

[0037] Preferably, in the same pin slot group 50, the first pin slot 501 and the second pin slot 503 are located on the front and back sides of the circuit board body 10, respectively.

[0038] Specifically, in the two sets of pin slot groups 50, both first pin slots 501 are located on the front or back of the circuit board body 10; or in the two sets of pin slot groups 50, the two first pin slots 501 are located on the front or back of the circuit board body 10 respectively. This solution includes two options. In the first option, the first pin slots 501 are located on the same side, which has the advantage of easy installation. In the second option, the first pin slots 501 are located on both sides. In this case, after the pins are installed and soldered, their solder joints are located on both sides of the circuit board body 10, which has a clamping and fixing effect and better stability than the first option.

[0039] Furthermore, the second pin slot 503 includes two slots, each extending from the pin hole 502 in a direction parallel or perpendicular to the first pin slot 501. In this design, there are two second pin slots 503 extending in different directions, providing two directions for pin extension. The four second pin slots 503 corresponding to the two pin holes 502 extend to form a cross-shaped structure. When a pin is inserted into a second pin slot 503 perpendicular to the first pin slot 501, the pin needs to be twisted 90 degrees, which forms a spiral structure. The width of this spiral structure is also greater than the width of the pin hole 502, thus further increasing the stability of this structure.

[0040] Preferably, connector 40 is an F-type connector 40. This type of connector 40 is detachable and provides a secure connection, and is commonly used in signal transmission such as television.

[0041] Preferably, the circuit board also has two sets of quick-connect connectors. One set is used to connect to the power supply, and the other set is used to connect to the touch display screen. The quick-connect connectors are used to connect the power supply and the touch display screen. The power supply provides power, while the touch display screen displays parameters such as speed and slope, and allows for the adjustment of these parameters.

[0042] Preferably, sensors 20 and 30 are motor speed sensors or conveyor belt rotation encoders, used to detect and measure the number of rotations or length of the conveyor belt and calculate the number of steps based on time and a preset step length. The other sensor 20 and 30 is a tilt sensor. The total number of steps is equal to the ratio of length to step length, while the average number of steps is obtained by multiplying the total number of steps by the ratio of unit time to total time.

[0043] The title provided above provides a detailed description of the present utility model. Specific examples have been used to illustrate the principles and implementation methods of the present utility model. The description of the above embodiments is only for the purpose of helping to understand the present utility model and its core ideas. It should be noted that for those skilled in the art, several improvements and modifications can be made to the present utility model without departing from the principles of the present utility model, and these improvements and modifications also fall within the protection scope of the claims of the present utility model.

Claims

1. A circuit board for automatically detecting steps and adjusting the incline of a treadmill, comprising a circuit board body, wherein sensors for measuring the number of rotations or length of the conveyor belt and the incline angle of the treadmill are connected to the circuit board body, characterized in that, A connection structure is provided between the circuit board body and the sensor, and the connection structure includes: The connector has two pins for connecting to the sensor; The connector has one end connected to the sensor via a signal line and the other end connected to the connector. The pin slot group includes a first pin slot and a second pin slot located on both sides of the circuit board body. A pin hole is provided through the circuit board and is located at the end of the first pin slot and the second pin slot; The second pin slot includes two sets, both of which are located on the back edge of the circuit board body. A boss is provided at the inner end of the second pin slot and its height is less than the depth of the second pin slot; Two pins are respectively set in two pin slot groups. The pin is embedded in the first pin slot and bent through the pin hole, then embedded in the second pin slot and soldered. The pin is bent at the boss and fits against the end face of the boss to form a bent part. The width of the bent part is greater than the width of the pin hole.

2. The circuit board for automatically detecting steps and adjusting the incline of a treadmill according to claim 1, characterized in that: In the same pin slot group, the first pin slot and the second pin slot are located on the front and back sides of the circuit board body, respectively.

3. The circuit board for automatically detecting steps and adjusting the incline of a treadmill according to claim 2, characterized in that: In the two sets of pin slots, both first pin slots are located on the front or back of the circuit board body; or in the two sets of pin slots, the two first pin slots are located on the front or back of the circuit board body respectively.

4. The circuit board for automatically detecting steps and adjusting the incline of a treadmill according to claim 3, characterized in that: The second pin slot includes two pin slots, which start from the pin hole and extend in a direction parallel or perpendicular to the first pin slot.

5. The circuit board for automatically detecting steps and adjusting the incline of a treadmill according to claim 1, characterized in that: The connector is an F-type connector.

6. The circuit board for automatically detecting steps and adjusting the incline of a treadmill according to claim 1, characterized in that: The circuit board also has two sets of quick-connect ports, one set for connecting to the power supply and the other set for connecting to the touch screen display.

7. The circuit board for automatically detecting steps and adjusting the incline of a treadmill according to claim 1, characterized in that: The sensor is either a motor speed sensor or a conveyor belt rotation encoder, which is used to detect and measure the number of rotations or length of the conveyor belt and calculate the number of steps based on time and a preset step size. The other sensor is a tilt sensor.

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