Support and differential pressure sensor fixing structure
By designing the abutment part and binding hole of the bracket structure, the problem of loose connection of the differential pressure sensor in the vibration environment was solved, and a stable connection between the connector and the sensor was achieved.
Patent Information
- Application Number
- CN202520332250.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Priority Date
- 2024-06-28
- Filing Date
- 2025-02-27
- Publication Date
- 2026-01-09
- Estimated Expiration
- 2035-02-27
AI Technical Summary
Existing differential pressure sensors are prone to loosening and poor connection in vibration environments, leading to communication loss or open circuit, resulting in poor stability.
A support structure was designed, including a connecting piece, an abutment part, and a wire outlet structure. The abutment part abuts against the end of the connector and is fixed by a binding strap through a wire binding hole, thereby enhancing the stability of the connector and the sensor.
This effectively avoids loosening and poor connection caused by vibration, and improves the connection stability between the differential pressure sensor and the connector.
Smart Images
Figure CN223781507U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to differential pressure sensor fixing technical field, especially a support and differential pressure sensor fixing structure. BACKGROUND
[0002] The differential pressure sensor is installed on the engine catalytic muffler to collect the exhaust treatment unit fixedly installed on the shell of the catalytic muffler.
[0003] However, the existing structure has the following problems:
[0004] The differential pressure sensor only has a fixing effect, and during the operation process of the vehicle, the pins between the differential pressure sensor and the plug-in connector may be loose and virtually connected due to complex factors such as vibration, which may cause communication loss of the differential pressure sensor, even a circuit break, and poor stability. UTILITY MODEL CONTENTS
[0005] The utility model aims at overcoming the defects of the prior art, and provides a support and differential pressure sensor fixing structure, which can improve the stability of the connection between the differential pressure sensor and the plug-in connector and avoid plug-in loosening and virtual connection caused by vibration.
[0006] The utility model achieves the above-mentioned purpose through the following technical scheme:
[0007] The utility model provides a support for installing a differential pressure sensor on the shell of a catalytic muffler, which comprises a connecting sheet, the connecting sheet comprises a first fixing part for fixing the differential pressure sensor and a second fixing part for fixing the shell of the catalytic muffler, the connecting sheet further comprises an abutting part for abutting with the plug-in connector of the differential pressure sensor, and the abutting part is provided with a wire outlet structure.
[0008] The utility model provides a differential pressure sensor fixing structure, which comprises a differential pressure sensor body, a plug-in connector plugged into the differential pressure sensor body, a catalytic muffler shell and a support for fixing the differential pressure sensor body, the support is the support in the first aspect, and one end of the plug-in connector not plugged into the differential pressure sensor body abuts against the abutting part.
[0009] The utility model has the following advantages:
[0010] The abutting part on the support is arranged to abut against the end of the plug-in connector to limit the plug-in connector, effectively avoiding plug-in loosening and virtual connection caused by vibration, and improving the stability of the connection between the differential pressure sensor and the plug-in connector. BRIEF DESCRIPTION OF DRAWINGS
[0011] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description only represent some of the embodiments of the present application, and other drawings can be obtained by those of ordinary skill in the art without any creative effort based on these drawings.
[0012] Figure 1 It is a perspective view of the support of the present application.
[0013] Figure 2 It is a side view of the support of the present application.
[0014] Figure 3 It is a structural schematic view of the differential pressure sensor fixing structure of the present application. DETAILED DESCRIPTION
[0015] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the following will combine the drawings in the embodiments of the present application to make a clear and complete description of the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments. The components of the embodiments of the present application described and shown in the drawings can be arranged and designed in various different configurations.
[0016] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without any creative effort are within the scope of protection of the present application.
[0017] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.
[0018] It should be noted that: similar labels and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.
[0019] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0020] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0021] This utility model discloses a bracket and a differential pressure sensor fixing structure, such as Figure 3 As shown, the differential pressure sensor mounting structure includes the bracket, the differential pressure sensor body 21, the connector 22 plugged into the differential pressure sensor body, and the catalytic muffler housing. The bracket is used to mount the differential pressure sensor body onto the catalytic muffler housing. It should be noted that the catalytic muffler housing is not shown in the figures of this embodiment.
[0022] Specifically, refer to Figure 1 The bracket includes a connecting piece, which includes a first fixing part 11 for fixing the differential pressure sensor, a second fixing part 12 for fixing the catalytic muffler housing, and an abutting part 13 for abutting against the connector of the differential pressure sensor. The abutting part 13 is provided with a wire outlet structure 14.
[0023] The first fixing part 11, the second fixing part 12, and their connection relationship can adopt existing structures. For example, a first fixing hole for fixing the differential pressure sensor can be provided on the first fixing part 11, and a second fixing hole for fixing the catalytic muffler housing can be provided on the second fixing part 12. The differential pressure sensor is fixed to the first fixing part 11 with bolts, and the second fixing part 12 is fixed to the catalytic muffler housing with bolts. Of course, the differential pressure sensor can also be fixed to the first fixing part 11 by means of bonding or other methods. The second fixing part 12 can be fixed to the catalytic muffler housing by welding or bonding.
[0024] In order to further enhance the stability of the plug-in connection between the plug-in head 22 and the differential pressure sensor body 21, a binding hole 15 is arranged on the first fixing part 11 at a position corresponding to the plug-in head. While the abutting part 13 abuts against the end of the plug-in head 22 which is not plugged into the differential pressure sensor body, the plug-in head is bound to the first fixing part 11 through the binding hole 15 by using the binding belt 3, thereby further improving the stability of the plug-in head and the stability of the plug-in connection between the plug-in head 22 and the differential pressure sensor body 21.
[0025] The binding hole 15 can be circular, waist-shaped, square, etc. In order to facilitate the adjustment of the binding position of the binding belt 3 on the plug-in head 22, the waist-shaped or square hole is preferred.
[0026] The wire outlet structure 14 is used to lead out the signal line on the plug-in head and is in the form of a hole or a groove. In order to facilitate the installation, the groove structure is preferred.
[0027] In order not to affect the installation of other components when fixing the differential pressure sensor, a connecting part 16 is further arranged between the second fixing part 12 and the first fixing part 11, so that the second fixing part 12 and the first fixing part 11 are not in the same plane. The connecting part 16 can be L-shaped or in the structure as described in the foregoing embodiment. Figure 2
[0028] The first fixing part 11, the second fixing part 12 and the abutting part 13 can be realized in various structures. In order to simplify the structure, they are all in the form of a plate. On the basis of this structure, in order to improve the stability of the limiting of the end of the plug-in head, the first fixing part 11 is arranged perpendicularly to the abutting part 13, so as to increase the contact surface between the abutting part 13 and the end of the plug-in head. Of course, the first fixing part 11 and the abutting part 13 can also not be arranged perpendicularly, but only abut against the end of the plug-in head. At this time, the abutting part 13 and the end of the plug-in head are in line contact or point contact, and the stability of the limiting is poor.
[0029] In order to improve the performance of the bracket, the bracket is in an integrated structure, the first fixing part 11 and the second fixing part 12 are arranged perpendicularly, and the second fixing part 12 and the abutting part 13 are arranged on the two sides of the first fixing part 11, respectively.
[0030] Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or replace some of the technical features equivalently, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.
Claims
1. A bracket for mounting a differential pressure sensor on the housing of a catalytic muffler, comprising a connecting piece, the connecting piece including a first fixing part (11) for fixing the differential pressure sensor and a second fixing part (12) for fixing the housing of the catalytic muffler, characterized in that: The connecting piece also includes an abutment portion (13) for abutting against the connector of the differential pressure sensor, and the abutment portion (13) is provided with a wire outlet structure (14).
2. The stent according to claim 1, characterized in that: A binding hole (15) is provided on the first fixing part (11) at a position corresponding to the plug.
3. The stent according to claim 2, characterized in that: The binding hole (15) is either a waist-shaped hole or a square hole.
4. The stent according to claim 1, characterized in that: The outgoing wire structure (14) is a hole structure or a slot structure.
5. A stent according to claim 1, characterized in that: A connecting part (16) is also provided between the second fixing part (12) and the first fixing part (11), the connecting part (16) causing the second fixing part (12) and the first fixing part (11) to be not on the same plane.
6. The stent according to claim 1, characterized in that: The first fixing part (11) is provided with a first fixing hole for fixing the differential pressure sensor.
7. The stent according to claim 1, characterized in that: The second fixing part (12) is provided with a second fixing hole for fixing the catalytic muffler housing.
8. A differential pressure sensor fixing structure, comprising a differential pressure sensor body (21), a connector (22) inserted into the differential pressure sensor body, a catalytic muffler housing, and a bracket for fixing the differential pressure sensor body (21), characterized in that: The bracket is a bracket according to any one of claims 1 to 7, and the end of the connector (22) that is not plugged into the differential pressure sensor body abuts against the abutment part (13).
9. The differential pressure sensor fixing structure according to claim 8, characterized in that: The connector (22) is tied to the first fixing part (11) through the binding hole (15) and the binding strap (3).