A motorcycle water tank temperature sensor

Abstract

The utility model discloses a motorcycle water tank temperature sensor, which comprises a sensor housing and a temperature sensing end protruding from one end of the sensor housing, the temperature sensing end being plugged into an inner cavity of the water tank, the other end of the sensor housing being connected with a stretchable and positionable rubber hose, one end of the rubber hose being connected with an electric plug, and the rubber hose being connected to the tail end of the sensor housing, the rubber hose being located outside the water tank and being stretchable by its own flexibility, so as to wrap the wiring harness and increase the length of the sensor at the same time, so as to better connect with a power supply socket and prevent the power plug and the power socket from becoming loose due to accidental touch.

Description

Technical Field

[0001] The utility model relates to sensor field technology, in particular to a motorcycle water tank temperature sensor. Background Art

[0002] The motorcycle radiator temperature sensor is a device used to measure and monitor the coolant temperature, mainly used in water-cooled engines. Its working principle is to sense the temperature changes of the coolant through thermistors and transmit these signals to the instrument or electronic control unit (ECU) for corresponding control operations, such as starting the fan, adjusting the idle speed, etc.

[0003] After being inserted into the water tank, the traditional water tank temperature sensor is locked with a nut and connected to the tail end of the temperature sensor through the wire connector on the motorcycle. However, as it is used, the wiring harness that supplies power to the temperature sensor is exposed to the outside and may be damaged or cause the power supply connector to separate due to contact with external objects, thereby affecting the normal operation of the temperature sensor. Utility Model Content

[0004] In view of this, the utility model aims to solve the deficiencies in the prior art and its main purpose is to provide a motorcycle water tank temperature sensor, which solves the problem that the wiring harness that supplies power to the temperature sensor is exposed to the outside and is easily damaged due to accidents or drives other equipment to move, thereby affecting the normal operation of the temperature sensor.

[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a motorcycle water tank temperature sensor, comprising a sensor housing 10, a PCB board 60 located in the housing, and a temperature sensing end 11 protruding from one end of the sensor housing 10 and electrically connected to the PCB board 60, the temperature sensing end 11 is plugged into the inner cavity of the water tank, and the other end of the sensor housing 10 is connected to a stretchable and positionable hose 20, the hose 20 is connected to an electrical plug 30 through a waterproof member 40 away from the end of the housing, the electrical plug 30 and the PCB board 60 are connected through a wiring harness, and the hose 20 is wrapped outside the wiring harness.

[0006] Furthermore, the waterproof member 40 is a shrink tube, which is located between the power plug 30 and the hose 20 . The end of the shrink tube with a smaller cross-sectional area is connected to the hose 20 , and the end of the shrink tube with a larger cross-sectional area is connected to the power plug 30 .

[0007] Furthermore, the hose 20 is a corrugated hose, and the surface of the corrugated hose has annular grooves 21 arranged at equal intervals.

[0008] Furthermore, the bottom of the annular groove 21 extends toward the inner cavity of the rubber hose 20 and is V-shaped. When the rubber hose 20 is forced to move outward, the opening of the V-mouth in the annular groove 21 becomes larger.

[0009] Furthermore, the sensor housing 10 includes a first shell 12 connected to the hose 20 and a second shell 13 connected to the first shell 12 . The temperature sensing end 11 is located at one end of the second shell 13 away from the first shell 12 . The cross-sectional area of ​​the second shell 13 is smaller than that of the first shell 12 .

[0010] Furthermore, a thread is formed on the surface of the first shell, and a nut is connected via the thread. The nut is located outside the water tank, and one side of the nut can contact the outer surface of the water tank.

[0011] Furthermore, the sensor housing is made of brass and is plated with a nickel layer.

[0012] Furthermore, the hose is made of PBT plastic.

[0013] Compared with the prior art, the utility model has obvious advantages and beneficial effects. Specifically, it can be seen from the above technical scheme that by connecting a hose to the tail end of the sensor housing, the hose is located outside the water tank and wraps the wire harness, so as to reduce the damage to the wire harness caused by the motorcycle when it is running by its own elasticity to provide shock resistance, and at the same time increase the length of the sensor to better connect with the power supply socket and prevent the power plug and the socket from loosening due to accidental touch.

[0014] In order to more clearly illustrate the structural features and functions of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional diagram of embodiment 1 of the present utility model.

[0016] Figure 2 It is a three-dimensional diagram of embodiment 1 of the present utility model.

[0017] Figure 3 It is an end view of the hose of Example 1 of the utility model.

[0018] Description of the accompanying drawings:

[0019] 10 sensor housing, 11 temperature sensing end, 12 first shell, 13 second shell, 20 hose, 21 annular groove, 30 electrical plug, 40 waterproof part, 50 nut, PCB board 60. DETAILED DESCRIPTION

[0020] Please refer to Figure 1-3As shown, it shows the specific structure of the preferred first embodiment of the utility model, which is a motorcycle water tank temperature sensor, including a sensor housing 10, a PCB board 60 located in the housing, and a temperature sensing end 11 protruding from one end of the sensor housing 10 and electrically connected to the PCB board 60, the temperature sensing end 11 is plugged into the inner cavity of the water tank, and the other end of the sensor housing 10 is connected to a stretchable and positionable hose 20, the hose 20 is connected to the power plug 30 through a waterproof member 40 away from the housing end, the power plug 30 and the PCB board 60 are connected through a wiring harness, and the hose 20 is wrapped outside the wiring harness. Compared with the existing water tank temperature sensor locked on the water tank through a nut 50, the socket for powering the temperature sensor must be moved to the side of the water tank and plugged with the power plug 30 of the temperature sensor, so that the temperature sensor can operate normally. When in use, the wiring harness connected to the power socket is not additionally wrapped, and the socket may be separated or loosened from the power plug 30 as it is used, thereby affecting the normal operation of the temperature sensor. The motorcycle water tank temperature sensor is provided by adding a flexible rubber hose 20 to the sensor housing 10, and connecting an electric plug 30 through the rubber hose 20. After the sensor housing 10 is connected to the water tank, the rubber hose 20 can be bent so that the electric plug 30 can be moved to a suitable position for plugging with the electric socket, so as to increase the stability of the temperature sensor when in use.

[0021] Specifically, the sensor housing 10 is equipped with various components constituting the sensor, wherein the PCB board model is STC89C52, the temperature sensing end 11 of the sensor housing 10 is the detection end of the sensor, and the sensing end 11 model is PT100 / PT1000. When in use, half of the sensor housing 10 is located in the water tank, and the other half is located outside the water tank. The half located in the water tank contains the temperature sensing end 11, and the half located outside the water tank is locked outside the water tank by a nut 50, or is threadedly connected to the threaded opening on the surface of the sensor housing 10 and the threaded opening on the water tank for locking. Both can limit the position of the sensor housing 10, but the sensor housing 10 that is not locked by the nut 50 is prone to rotation during use, and then malfunctions occur, such as separation of the power plug 30 and the power socket. The hose 20 connected to the end of the sensor housing 10 outside the water tank is a hollow tube, and the inner cavity of the hose 20 can be used to place a wiring harness, and the electrical components in the sensor housing 10 are connected, and power is supplied after power is connected. The hose 20 is flexible and can be bent to a certain extent and protect the wiring harness to reduce the probability of accidental damage to the thinner wiring harness. At the same time, the bending of the hose 20 can also better connect with the power socket to avoid the traditional usage scenario where the power socket is connected to the power plug 30, and the wiring harness connected at the tail is suspended in the air and is easily damaged due to stone collision or high temperature of automobile parts during driving.

[0022] like Figure 1As shown, the waterproof member 40 is exemplarily a shrink tube, which is located between the power plug 30 and the hose 20, and the end of the shrink tube with a small cross-sectional area is connected to the hose 20, and the end of the shrink tube with a large cross-sectional area is connected to the power plug 30. The shrink tube can prevent rainwater from entering the sensor housing 10 through the hose 20 when the motorcycle is running, and damage the electrical components in the sensor housing 10.

[0023] like Figure 2 As shown, the hose 20 is exemplarily a corrugated hose, and the surface of the corrugated hose has annular grooves 21 arranged at equal intervals. When the hose 20 is a corrugated hose, through its elastic deformation characteristics, it can effectively absorb and compensate for dimensional changes caused by temperature changes, such as axial, lateral and angular displacements, and can help the sensor to more accurately measure and record temperature changes. In addition, the hose 20, as an isolation element, also protects the sensor from external interference.

[0024] like Figure 3 As shown, the bottom of the annular groove 21 extends toward the inner cavity of the hose 20 and is V-shaped. When the hose 20 is forced to move outward, the V-shaped opening in the annular groove 21 becomes larger. Because the annular groove 21 is V-shaped, the hose 20 can be stretched to a greater length, so as to better connect with the power socket.

[0025] like Figure 1 As shown, the sensor housing 10 includes a first shell 12 connected to the hose 20, and a second shell 13 connected to the first shell 12. The temperature sensing end 11 is located at an end of the second shell 13 away from the first shell 12, and the cross-sectional area of ​​the second shell 13 is smaller than the first shell 12. The electrical components are placed in the first shell 12, and the detection head is placed in the second shell 13. The strength of the temperature sensor is increased by making the width of the first shell 12 larger than the width of the second shell 13.

[0026] The first housing 12 has a threaded surface, and is connected to a nut 50 by the threaded connection. The nut 50 is located outside the water tank, and one side of the nut 50 can contact the outer surface of the water tank. The nut 50 can prevent the sensor housing 10 from rotating in unnecessary scenarios, thereby affecting the electrical connection between the power plug 30 and the power socket.

[0027] The sensor housing 10 is made of brass, and the surface is plated with a nickel layer.

[0028] The hose 20 is made of PBT plastic.

[0029] In summary, the design focus of the utility model is that by adding a hose 20 to the sensor housing 10, the connectable length of the sensor is increased, so that the power socket connected to the sensor can be pulled outward without being pulled, thereby reducing the wiring harness connected to the power socket from being damaged due to accidents, thereby affecting the use of the sensor.

[0030] The above description is only a preferred embodiment of the present invention and does not limit the technical scope of the present invention. Therefore, any slight modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A motorcycle water tank temperature sensor, comprising a sensor housing (10), a PCB board (60) located in the housing, and a temperature sensing end (11) protruding from one end of the sensor housing (10) and electrically connected to the PCB board (60), wherein the temperature sensing end (11) is plugged into an inner cavity of the water tank, and characterized in that: The other end of the sensor housing (10) is connected to a stretchable and positionable rubber hose (20), the rubber hose (20) is connected to an electrical plug (30) via a waterproof component (40) at the end away from the housing, the electrical plug (30) is connected to a PCB board (60) via a wiring harness, and the rubber hose (20) is wrapped outside the wiring harness.

2. A motorcycle water tank temperature sensor according to claim 1, characterized in that: The waterproof component (40) is an inner shrink tube, which is located between the power plug (30) and the rubber hose (20). The end of the inner shrink tube with a small cross-sectional area is connected to the rubber hose (20), and the end of the inner shrink tube with a large cross-sectional area is connected to the power plug (30).

3. A motorcycle water tank temperature sensor according to claim 1, characterized in that: The rubber hose (20) is a corrugated rubber hose, and the surface of the corrugated rubber hose has annular grooves (21) arranged at equal intervals.

4. A motorcycle water tank temperature sensor according to claim 3, characterized in that: The bottom of the annular groove (21) extends toward the inner cavity of the rubber hose (20) and is V-shaped. When the rubber hose (20) is forced to move outward, the V-shaped opening in the annular groove (21) becomes larger.

5. The motorcycle water tank temperature sensor according to claim 1, characterized in that: The sensor housing (10) comprises a first shell (12) connected to a hose (20), and a second shell (13) connected to the first shell (12); the temperature sensing end (11) is located at an end of the second shell (13) away from the first shell (12); and the cross-sectional area of ​​the second shell (13) is smaller than that of the first shell (12).

6. A motorcycle water tank temperature sensor according to claim 5, characterized in that: The surface of the first shell (12) is provided with threads, and a nut (50) is connected via the threads. The nut (50) is located outside the water tank, and one side of the nut can contact the outer surface of the water tank.

7. A motorcycle water tank temperature sensor according to claim 1, characterized in that: The sensor housing (10) is made of brass and has a nickel layer plated on its surface.

8. The motorcycle water tank temperature sensor according to claim 1, characterized in that: The rubber hose (20) is made of PBT plastic.

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