Anti-loosening structure for signal terminal of automobile fuel pressure sensor

Abstract

The utility model discloses an anti-loosening structure for an automobile fuel pressure sensor signal terminal, which comprises a signal terminal, a pin and an anti-loosening assembly, and is characterized in that the signal terminal is provided with a component connecting cavity and a controller connecting cavity, and the component connecting cavity is communicated with the controller connecting cavity; the signal terminal is provided with a component connecting cavity and a controller connecting cavity, the pin is installed in the component connecting cavity and the controller connecting cavity of the signal terminal, the anti-loosening assembly is detachably installed on the pin, and when the pin is installed in the signal terminal, the pin is fixed at a preset position of the signal terminal by the anti-loosening assembly. Through the arrangement, the effects of stable holding force of the terminal and the sensor interface and reliable assembly are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of sensors, in particular to an anti-loosening structure for a signal terminal of an automobile fuel pressure sensor. Background Art

[0002] The automotive pressure sensor is an oil pressure detection element used in brake systems with oil pressure boosters. It can detect the pressure of the accumulator and output the oil pump's closing or disconnection signal and the oil pressure abnormality alarm. It is equipped with a semiconductor strain gauge, which takes advantage of the fact that the resistance of the strain gauge changes when its shape changes. In addition, a metal diaphragm is also provided, which detects the pressure change through the metal diaphragm strain gauge and converts it into an electrical signal for external output.

[0003] The signal terminal of the automotive pressure sensor is used in the sensor of the automobile engine. It needs to be resistant to high and low temperature temperature change shock, vibration, air tightness, etc., and has higher durability requirements than general sensors. Among them, the sensor signal terminal connects the sensor components and the external controller, which requires the connection to have high stability and reliability.

[0004] However, when the sensor terminal head contacts the sensor interface and the terminal is inserted downward, the barbed hook of the terminal deforms and shifts to the left. After the shift, it cannot rebound to the initial position, resulting in the terminal head being unable to fit into the flat section of the sensor interface. The holding force between the terminal and the sensor interface is insufficient, causing an unstable connection. Utility Model Content

[0005] One advantage of the utility model is that it provides an anti-loosening structure for a signal terminal of an automobile fuel pressure sensor, comprising: a signal terminal, the signal terminal having a component connection cavity and a controller connection cavity, the component connection cavity and the controller connection cavity being communicated; a pin, the pin being installed in the component connection cavity and the controller connection cavity of the signal terminal; and an anti-loosening component, the anti-loosening component being detachably installed on the pin, and when the pin is installed in the signal terminal, the anti-loosening component fixes the pin at a predetermined position of the signal terminal.

[0006] In order to achieve at least one of the above advantages of the utility model, the utility model provides an anti-loosening structure for a signal terminal of a fuel pressure sensor of an automobile.

[0007] According to one embodiment of the utility model, the component connection cavity has a placement cavity and a first installation cavity, and the controller connection cavity has a second installation cavity. The placement cavity is horizontally arranged, the first installation cavity is vertically arranged, and the second installation cavity is vertically arranged, and the first installation cavity is connected to the second installation cavity.

[0008] According to an embodiment of the present invention, the second installation cavity has a clearance space, and the clearance space is consistent with the opening direction of the placement cavity.

[0009] According to an embodiment of the utility model, a sliding slope is provided at the connection between the placement cavity and the first installation cavity, and a snap-on slope is provided at the connection between the placement cavity and the second installation cavity, and the sliding slope and the snap-on slope have opposite inclination directions.

[0010] According to an embodiment of the utility model, it is characterized in that the insertion pin has a connecting piece, a fixing piece and a needle head, wherein the fixing piece is connected to the connecting piece, and the needle head is connected to an end of the connecting piece away from the fixing piece.

[0011] According to an embodiment of the present invention, the cross-sections of the fixing plate and the connecting plate are L-shaped.

[0012] According to an embodiment of the utility model, at least one mounting hole is formed on the connecting piece, and the anti-loosening component is installed in the mounting hole.

[0013] According to an embodiment of the utility model, the anti-loosening component includes an anti-loosening hook, and the anti-loosening hook is installed in the installation hole.

[0014] According to an embodiment of the utility model, the anti-disconnection hook has a clamping portion, an arc portion and a contact portion, wherein the clamping portion, the arc portion and the contact portion are connected in sequence.

[0015] According to an embodiment of the present invention, the cross-section of the anti-detachment hook is L-shaped. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The overall structural diagram of the utility model is shown.

[0017] Figure 2 A schematic diagram showing another viewing angle of the overall structure of the utility model.

[0018] Figure 3 An exploded schematic diagram of the overall structure of the utility model is shown.

[0019] Figure 4 The overall structural schematic diagram of the plug pin of the utility model is shown.

[0020] Figure 5 The overall structural schematic diagram of the anti-loosening component of the utility model is shown.

[0021] Figure 6 A partial enlarged schematic diagram of the utility model for displaying the signal terminal is shown.

[0022] Reference numerals:

[0023] 10. Signal terminal; 101. Component connection cavity; 1011. Placement cavity; 1012. First installation cavity; 102. Controller connection cavity; 1021. Second installation cavity; 1022. Make way; 103. Sliding slope; 104. Snap-on slope; 20. Insert pin; 21. Fixing plate; 22. Connecting plate; 2201. Mounting hole; 23. Needle; 30. Anti-loosening assembly; 31. Anti-disengagement hook; 3101. Snap-on portion; 3102. Arc portion; 3103. Abutment portion. DETAILED DESCRIPTION

[0024] The following description is used to disclose the utility model so that those skilled in the art can implement the utility model. The preferred embodiments described below are only examples, and those skilled in the art can think of other obvious variations. The basic principles of the utility model defined in the following description can be applied to other embodiments, variations, improvements, equivalents, and other technical solutions that do not deviate from the spirit and scope of the utility model.

[0025] Those skilled in the art should understand that, in the disclosure of the present invention, the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the above terms should not be understood as limiting the present invention.

[0026] It is to be understood that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the element may be multiple, and the term "one" should not be understood as a limitation on the quantity.

[0027] refer to Figures 1 to 6 The anti-loosening structure for the signal terminal of the automobile fuel pressure sensor according to a preferred embodiment of the utility model will be described in detail below. The anti-loosening structure of the signal terminal 10 of the automobile fuel pressure sensor includes a signal terminal 10, at least one plug pin 20 and at least one anti-loosening component 30, wherein the plug pin 20 is installed in the signal terminal 10, and the anti-loosening component 30 is detachably installed on the plug pin 20. In this way, when the operator inserts the plug pin 20 into the signal terminal 10, the anti-loosening component 30 is fixed at a predetermined position, that is, the anti-loosening component 30 can fix the plug pin 20 in the signal terminal 10, so that the signal terminal 10 can ensure the stability of the connection when it is in use.

[0028] Specifically, the signal terminal 10 has a component connection cavity 101 and a controller connection cavity 102 , wherein the component connection cavity 101 and the controller connection cavity 102 are connected, and when the pin 20 passes through the signal terminal 10 , the pin 20 can be inserted in the component connection cavity 101 and the controller connection cavity 102 .

[0029] Further, see Figures 3 to 6 The component connection cavity 101 has a placement cavity 1011 and a first installation cavity 1012. The placement cavity 1011 is horizontally arranged, and the first installation cavity 1012 is vertically arranged. In other words, the placement cavity 1011 and the first installation cavity 1012 are L-shaped in cross section. The controller connection cavity 102 has a second installation cavity 1021. In this embodiment, the second installation cavity 1021 is vertically arranged, and the second installation cavity 1021 is connected to the first installation cavity 1012.

[0030] Furthermore, the pin 20 includes a connecting piece 22, a fixing piece 21 and a needle 23, wherein the connecting piece 22 is connected to the fixing piece 21. In this embodiment, the fixing piece 21 is arranged horizontally and the connecting piece 22 is arranged vertically, that is, the connecting piece 22 and the fixing piece 21 have an L-shaped cross section, and the needle 23 is connected to the end of the connecting piece 22 away from the fixing piece 21; at least one mounting hole 2201 is provided on the connecting piece 22, and the mounting hole 2201 is rectangular in shape, and the anti-loosening component 30 is installed in the mounting hole 2201. In this embodiment, two mounting holes 2201 are provided on the connecting piece 22. With this arrangement, after the anti-loosening component 30 is installed on the connecting piece 22, the installation is more stable.

[0031] Reference Figures 1 to 6 That is, when the pin 20 is installed in the signal terminal 10, the fixing piece 21 is installed in the placement cavity 1011 of the signal terminal 10, the connecting piece 22 is installed in the first installation cavity 1012, and the pin 20 is installed in the second installation cavity 1021. In this way, the controller connection cavity 102 of the signal terminal 10 is connected to the controller, and the component connection cavity 101 of the signal terminal 10 is connected to the sensor component. More specifically, the fixing piece 21 is electrically connected to the sensor component, and the needle head 23 is electrically connected to the controller.

[0032] It is worth mentioning that in this embodiment, the second installation cavity 1021 has a clearance space 1022, and the clearance space 1022 is arranged in the same direction as the placement cavity 1011. When the pin 20 is installed in the signal terminal 10, the anti-loosening component 30 is clamped in the clearance space 1022 to fix the pin 20 in the current position, thereby increasing stability.

[0033] Furthermore, the anti-loosening component 30 includes an anti-loosening hook 31 , wherein the anti-loosening hook 31 has a clamping portion 3101 , a circular arc portion 3102 and an abutting portion 3103 , the clamping portion 3101 is connected to the circular arc portion 3102 , and the circular arc portion 3102 is connected to the abutting portion 3103 .

[0034] Specifically, the clamping portion 3101 and the arc portion 3102 of the anti-detachment hook 31 are respectively located on both sides of the connecting piece 22 of the pin 20, and the abutting portion 3103 is installed on the bottom surface of the mounting hole 2201. The clamping portion 3101 and the arc portion 3102 are arranged obliquely relative to the connecting piece 22. In other words, the arc portion 3102 of the anti-detachment hook 31 is bent so that the clamping portion 3101 and the abutting portion 3103 are arranged at a predetermined angle, and the cross section of the anti-detachment hook 31 is L-shaped.

[0035] Furthermore, a sliding slope 103 is provided at the connection between the placement cavity 1011 of the component connection cavity 101 and the first installation cavity 1012, and a snap-fitting slope 104 is provided at the connection between the placement cavity 1011 and the second connection cavity of the controller connection cavity 102. It is worth mentioning that the inclination direction of the sliding slope 103 is opposite to the inclination direction of the snap-fitting slope 104.

[0036] Specifically, during the installation of the plug 20, the clamping portion 3101 of the anti-disconnection hook 31 slides along the sliding slope 103, and the anti-disconnection hook 31 slides with the plug 20 until the plug 20 slides to a predetermined position, and the clamping portion 3101 of the anti-disconnection hook 31 moves into the clearance space 1022 of the second installation cavity 1021, and the top of the clamping portion 3101 abuts against the top of the clearance space 1022. At this time, the arc portion 3102 of the anti-disconnection hook 31 abuts against the clamping slope 104. In this way, the sliding slope 103 can play a guiding role, and the clamping slope 104 can prevent the anti-disconnection hook 31 from deforming and deviating under the action of the sliding slope 103.

[0037] That is to say, when the pin 20 is installed in the signal terminal 10, the arc portion 3102 of the anti-detachment hook 31 is subjected to force at the same time under the action of the clamping slope 104, so that the clamping portion 3101 and the abutting portion 3103 of the anti-detachment hook 31 can be more firmly abutted against the top of the clearance space 1022 and the bottom of the mounting hole 2201 respectively, so that the anti-detachment hook 31 is firmly fixed.

[0038] Furthermore, when the clamping portion 3101 of the anti-disconnection hook 31 abuts against the clearance space 1022, the fixing piece 21 of the plug pin 20 is just located in the placement cavity 1011. This arrangement can prevent the plug pin 20 from loosening and moving upward in the signal terminal 10, and the assembly is reliable, the holding force is improved and stable, and the product function is stable and reliable.

[0039] In summary, the operator installs the plug pin 20 in the signal terminal 10, and the plug pin 20 moves from the component connection cavity 101 to the controller connection cavity 102. During the movement, the needle head 23 of the plug pin 20 passes through the first installation cavity 1012 and then the second installation cavity 1021. The fixing plate 21 of the plug pin 20 is installed in the placement cavity 1011, and the connecting plate 22 of the plug pin 20 is installed in the first installation cavity 1012. In this process, the anti-detachment hook 31 of the anti-detachment component 30 also moves with the connecting plate 22, and the clamping part 3101 of the anti-detachment hook 31 moves along the sliding inclined surface 103. After the anti-detachment hook 31 moves to the predetermined position, the arc part 3102 of the anti-detachment hook 31 is abutted against the clamping inclined surface 104, and the clamping part 3101 of the anti-detachment hook 31 moves to the clearance space 1022. At this time, the plug pin 20 is stably installed in the signal terminal 10.

[0040] It should be understood by those skilled in the art that the embodiments of the present invention described above and shown in the accompanying drawings are only examples and do not limit the present invention. The advantages of the present invention have been fully and effectively realized. The functions and structural principles of the present invention have been demonstrated and explained in the embodiments, and the embodiments of the present invention may be deformed or modified in any way without departing from the principles.

Claims

1. Anti-loosening structure for signal terminal of automobile fuel pressure sensor, characterized in that: include: a signal terminal, the signal terminal having a component connection cavity and a controller connection cavity, the component connection cavity and the controller connection cavity being in communication; a pin, the pin being installed in the component connection cavity and the controller connection cavity of the signal terminal; and An anti-loosening component is detachably mounted on the plug pin. When the plug pin is installed in the signal terminal, the anti-loosening component fixes the plug pin at a predetermined position of the signal terminal.

2. The anti-loosening structure of the signal terminal of the automobile fuel pressure sensor according to claim 1, characterized in that: The component connection cavity has a placement cavity and a first installation cavity, and the controller connection cavity has a second installation cavity. The placement cavity is horizontally arranged, the first installation cavity is vertically arranged, and the second installation cavity is vertically arranged. The first installation cavity is connected to the second installation cavity.

3. The anti-loosening structure of the signal terminal of the automobile fuel pressure sensor according to claim 2, characterized in that: The second installation cavity has a clearance space, and the clearance space is consistent with the opening direction of the placement cavity.

4. The anti-loosening structure of the signal terminal of the automobile fuel pressure sensor according to claim 3, characterized in that: A sliding slope is provided at the connection between the placement cavity and the first installation cavity, and a clamping slope is provided at the connection between the placement cavity and the second installation cavity. The sliding slope and the clamping slope have opposite inclination directions.

5. The anti-loosening structure of the signal terminal of the automobile fuel pressure sensor according to claim 1, characterized in that: The insertion pin has a connecting piece, a fixing piece and a needle head, wherein the fixing piece is connected to the connecting piece, and the needle head is connected to an end of the connecting piece away from the fixing piece.

6. The anti-loosening structure of the signal terminal of the automobile fuel pressure sensor according to claim 5, characterized in that: The fixing piece and the connecting piece have L-shaped cross sections.

7. The anti-loosening structure of the signal terminal of the automobile fuel pressure sensor according to claim 6, characterized in that: At least one mounting hole is formed on the connecting piece, and the anti-loosening component is mounted in the mounting hole.

8. The anti-loosening structure of the signal terminal of the automobile fuel pressure sensor according to claim 7, characterized in that: The anti-loosening component includes an anti-loosening hook, and the anti-loosening hook is installed in the installation hole.

9. The anti-loosening structure of the signal terminal of the automobile fuel pressure sensor according to claim 8, characterized in that: The anti-drop hook has a clamping portion, an arc portion and a contact portion, wherein the clamping portion, the arc portion and the contact portion are connected in sequence.

10. The anti-loosening structure of the signal terminal of the automobile fuel pressure sensor according to claim 9, characterized in that: The cross section of the anti-drop hook is L-shaped.

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