Detachable tire pressure sensing device

Abstract

The utility model discloses a detachable tire pressure sensing device which comprises a shell, a supporting seat, a PCBA sensing module and a battery, the shell is provided with an opening and a vent hole, the shell is internally provided with a hollow mounting cavity, the mounting cavity is communicated with the opening and the vent hole, one end of the supporting seat is provided with a sealing door matched with the opening, and the other end of the supporting seat is provided with the PCBA sensing module. The sealing door is correspondingly and detachably connected with the shell in a buckled mode, the supporting base is matched with the installation cavity so that the supporting base can slide into or slide out of the installation cavity along the opening, the PCBA sensing module is detachably clamped on the side, close to the ventilation hole, of the supporting base, the battery is detachably clamped on the supporting base and electrically connected with the PCBA sensing module, and the PCBA sensing module is electrically connected with the battery. According to the utility model, the supporting seat is detachably buckled and connected to the shell, and the battery and the PCBA sensing module are arranged on the supporting seat, so that the battery and the PCBA sensing module can slide out of the shell along with the supporting seat, and replacement and inspection of parts are realized.

Description

Technical Field

[0001] The utility model relates to the technical field of tire pressure detection, and further relates to a detachable tire pressure sensing device. Background Art

[0002] Tire pressure is a crucial factor affecting vehicle safety. Maintaining proper tire pressure not only reduces tire wear and improves fuel efficiency, but also effectively prevents blowouts caused by leaks or insufficient pressure. Statistics show that 70% to 80% of traffic accidents on highways are caused by blowouts. Therefore, real-time tire pressure monitoring and timely warnings have become crucial issues in automotive safety. To address this issue, existing technologies have developed products such as tire pressure sensors. These sensors automatically monitor tire pressure in real time while the vehicle is driving and provide alerts for leaks and low pressure, ensuring driving safety.

[0003] In the prior art, tire pressure sensors generally include a battery and a PCBA sensing module. Currently, the battery and PCBA sensing module of tire pressure sensors on the market are generally non-detachable. This means that once the battery is exhausted or the PCBA sensing module fails, the components cannot be repaired or replaced, and a new sensor must be replaced, increasing the cost of use and causing environmental pollution and waste of resources. In addition, the battery and PCBA sensing module are usually inside the tire pressure sensor housing, making them inconvenient to check and replace. Utility Model Content

[0004] In view of the above technical problems, the purpose of the present invention is to provide a detachable tire pressure sensing device, which can solve the problems raised in the above background technology.

[0005] In order to achieve the above-mentioned object, the present invention provides a detachable tire pressure sensing device, comprising:

[0006] A housing, wherein an opening and a vent are formed on the housing, and a hollow installation cavity is formed inside the housing, wherein the installation cavity is in communication with the opening and the vent;

[0007] A support base, one end of which is provided with a sealing door adapted to the opening, the sealing door being detachably snap-connected to the housing, and the support base being adapted to the mounting cavity so that the support base can slide into or out of the mounting cavity along the opening;

[0008] A PCBA sensing module is detachably mounted on a side of the support base near the vent hole;

[0009] A battery is detachably mounted on the support base and electrically connected to the PCBA sensing module.

[0010] By setting a support base that is detachably snap-connected to the shell, the battery and PCBA sensing module are set on the support base, so that the battery and PCBA sensing module can slide out of the shell along with the support base to achieve replacement and inspection of components, effectively improving the practicality of the tire pressure sensor, effectively reducing the difficulty of maintenance and inspection when the device fails, and extending the service life of the tire pressure sensor.

[0011] In some embodiments, a slot is provided on a side wall of the housing corresponding to the opening;

[0012] A pressing groove is provided on the side wall of the sealing door corresponding to the card slot, and an elastic hook piece corresponding to the card slot is extended from the bottom of the pressing groove. The elastic hook piece extends out of the pressing groove so as to be able to be correspondingly inserted into the card slot.

[0013] In some embodiments, a guide groove is provided on a side wall of the housing corresponding to the installation cavity, and the guide groove is provided along the direction of the opening;

[0014] The support seat is provided with a guide protrusion corresponding to the guide groove, so that the support seat can slide into or out of the installation cavity along the guide groove.

[0015] In some embodiments, the support base is provided with a battery slot adapted for the battery, and a plurality of first latching protrusions are provided on the slot wall of the battery slot, and the first latching protrusions all extend in a direction away from the slot wall of the battery slot;

[0016] The support seat is further provided with a pressing groove connected to the battery slot. A pressing end spring component extending into the battery slot is provided in the pressing groove. The pressing end spring component is electrically connected to the PCBA sensing module.

[0017] In some embodiments, a fixing groove corresponding to the PCBA sensing module is further provided on the support base, and a plurality of positioning notches are provided on the groove wall of the fixing groove, and each of the positioning notches is provided with a second positioning protrusion extending into the fixing groove.

[0018] In some embodiments, a fixed end spring is provided at the bottom of the battery slot, and the fixed end spring is tilted toward the battery slot.

[0019] In some embodiments, a docking groove is provided on a side of the shell corresponding to the opening, the docking groove is adapted to the sealing door, and the docking groove is communicated with the guide groove.

[0020] By opening a docking groove corresponding to the sealing door on the shell, the gap between the sealing door and the shell is effectively reduced, thereby further optimizing the airtightness of the installation cavity and ensuring the accuracy and precision of the tire pressure sensor's pressure detection.

[0021] In some embodiments, a sealing groove is provided at the bottom of the docking groove;

[0022] The support seat is sleeved with a sealing member corresponding to the sealing groove.

[0023] By installing a seal corresponding to the sealing groove on the support seat, the seal can fill the gap between the sealing door and the shell, thereby effectively improving the airtightness of the installation cavity, preventing dust or moisture from entering the tire pressure sensor, and thus providing a guarantee for the normal use of the tire pressure sensor.

[0024] In some embodiments, a plurality of assisting elastic members are provided at the bottom of the docking groove, and the assisting elastic members extend toward the opening.

[0025] In some embodiments, a waterproof groove is provided on the housing, the waterproof groove is provided at an end of the ventilation hole away from the PCBA sensing component, and a waterproof breathable membrane is provided in the waterproof groove.

[0026] Compared with the prior art, the detachable tire pressure sensor provided by the present invention has the following advantages:

[0027] Beneficial effects:

[0028] 1. The detachable tire pressure sensor device provided by the present invention is detachably connected to the housing by providing a support base, and the battery and PCBA sensing module are arranged on the support base, so that the battery and PCBA sensing module can slide out of the housing along with the support base to realize component replacement and inspection, effectively improving the practicality of the tire pressure sensor, effectively reducing the difficulty of maintenance and inspection when the device fails, and also extending the service life of the tire pressure sensor.

[0029] 2. The detachable tire pressure sensor device provided by the present invention has a seal corresponding to the sealing groove mounted on the support seat, so that the seal can fill the gap between the sealing door and the shell, thereby effectively improving the airtightness of the installation cavity, thereby preventing dust or moisture from entering the tire pressure sensor, and thus providing a guarantee for the normal use of the tire pressure sensor. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The preferred embodiments will be described below in a clear and understandable manner with reference to the accompanying drawings to further illustrate the above-mentioned characteristics, technical features, advantages and implementation methods of the present invention.

[0031] Figure 1 This is a schematic diagram of the three-dimensional structure of a detachable tire pressure sensing device according to a preferred embodiment of the present invention;

[0032] Figure 2 This is an exploded schematic diagram of parts of a detachable tire pressure sensor device according to a preferred embodiment of the present invention;

[0033] Figure 3 2 is a schematic cross-sectional view of a detachable tire pressure sensing device according to a preferred embodiment of the present invention;

[0034] Figure 4 This is a schematic structural diagram of the housing of a detachable tire pressure sensor device according to a preferred embodiment of the present invention;

[0035] Figure 5 It is a structural schematic diagram of a support base of a detachable tire pressure sensor device according to a preferred embodiment of the present utility model.

[0036] Description of Figure Numbers:

[0037] Shell 10, vent 11, waterproof breathable membrane 12, installation cavity 13, card slot 14, guide slot 15, sealing slot 16, docking slot 17, support seat 20, sealing door 21, guide protrusion 22, elastic hook 23, battery slot 24, first card position protrusion 25, pressing slot 26, card position notch 27, fixing slot 28, second card position protrusion 29, battery 30, PCBA sensing module 40, seal 50, power-assisting elastic part 60, valve nozzle 70, pressing end spring component 80, fixed end spring component 90. DETAILED DESCRIPTION

[0038] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the specific implementation methods of the present invention will be described below with reference to the accompanying drawings. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without inventive work.

[0039] To simplify the drawings, only the parts relevant to the utility model are schematically shown in each figure; they do not represent the actual structure of the product. Furthermore, to simplify the drawings and facilitate understanding, in some figures, only one of the components with the same structure or function is schematically depicted or labeled. In this document, "one" not only means "only one" but also "more than one."

[0040] It should be further understood that the term "and / or" used in this specification and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items.

[0041] It should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they can refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediary; and internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.

[0042] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0043] In one embodiment, the reference Figures 1 to 5 The present invention provides a detachable tire pressure sensing device, including a shell 10, a support base 20, a PCBA sensing module 40 and a battery 30, wherein the shell 10 is provided with an opening and a vent 11, and a hollow installation cavity 13 is provided inside the shell 10, and the installation cavity 13 is communicated with the opening and the vent 11. A sealing door 21 adapted to the opening is provided at one end of the support base 20, and the sealing door 21 is detachably snap-connected to the shell 10. The support base 20 is adapted to the installation cavity 13 so that the support base 20 can slide into or out of the installation cavity 13 along the opening. The PCBA sensing module 40 is detachably clamped on the side of the support base 20 near the vent 11, and the battery 30 is detachably clamped on the support base 20 and electrically connected to the PCBA sensing module 40.

[0044] Specifically, the shell 10 can be a rectangular box-shaped object, and a valve nozzle 70 is connected to the shell 10. The support base 20 is a rectangular plate-shaped object. The PCBA sensing module 40 and the battery 30 are detachably mounted on the support base 20 along the length direction of the support base 20. Correspondingly, the spatial outline of the installation cavity 13 is also rectangular, so that the space of the tire pressure sensor is more compact. The PCBA sensing module 40 and the battery 30 can both be arranged on the side of the support base 20 close to the vent 11 to facilitate the assembly of components. In addition, when the support base 20 is inserted into the preset position in the installation cavity 13, the pressure sensor on the PCBA sensing module 40 is facing the vent 11, so that the gas pressure can be detected faster and more accurately.

[0045] In one embodiment, the reference Figure 1 、 Figure 4 and Figure 5On the basis of the above embodiment, a card slot 14 is opened on the side wall of the shell 10 corresponding to the opening, and a pressing groove 26 is opened on the side wall of the sealing door 21 corresponding to the card slot 14. An elastic hook 23 corresponding to the card slot 14 is extended from the bottom of the pressing groove 26. The elastic hook 23 extends from the pressing groove 26 so that it can be correspondingly inserted into the card slot 14.

[0046] Specifically, the slot 14 can be provided on the sidewall corresponding to the short side of the housing 10, with the notch of the slot 14 facing the opening of the housing 10. The width of the slot 14 is slightly larger than the width of the hook so that the hook can be inserted into the slot 14. The depth of the slot 14 is deep enough to ensure that the hook has enough space to recover its elastic deformation after insertion. The elastic hook member 23 includes a hook and a pressing structure, and the hook is generally shaped like a small hook. In its natural state, the hook extends outward. When installation is required, the component with the hook is aligned with the slot 14 and pressed. The hook will be elastically deformed by the pressure and bend inward, thereby smoothly entering the slot 14. After entering the card slot 14, the hook returns to its original shape under the action of the elastic restoring force, and clamps the edge of the card slot 14, thereby realizing the connection between the sealing door 21 and the shell 10. The pressing structure is arranged at a position corresponding to the pressing slot 26, and extends out of the pressing slot 26. The pressing structure increases the contact area when the finger presses, making the pressing operation more comfortable and convenient, thereby realizing that when it is necessary to disassemble the connected parts, the sealing door 21 and the shell 10 can be separated by pressing the boss with a finger.

[0047] It should be pointed out that the elastic hook part 23 is usually made of a material with a certain elasticity, and it can be cast integrally with the sealing door 21. In addition, the number of the slots 14 can be two, and the two slots 14 are opened opposite to each other, and the corresponding number of the elastic hook parts 23 is also two, so as to further improve the connection reliability between the sealing door 21 and the shell 10.

[0048] In one embodiment, the reference Figure 1 、 Figure 4 and Figure 5 On the basis of the above embodiment, a guide groove 15 is provided on the side wall of the housing 10 corresponding to the mounting cavity 13. The guide groove 15 is opened along the direction of the opening, and a guide protrusion 22 corresponding to the guide groove 15 is provided on the support seat 20 so that the support seat 20 can slide into or out of the mounting cavity 13 along the guide groove 15.

[0049] Specifically, the number of guide grooves 15 can be two, and the two guide grooves 15 are opened relative to each other. By opening the guide grooves 15 and setting the guide protrusions 22, the support seat 20 can slide in or out of the shell 10 more conveniently and quickly, effectively improving the operability of the tire pressure sensor. The limiting relationship between the guide grooves 15 and the guide protrusions 22 is also effectively improved. The stability of the support seat 20 in the installation cavity 13 is further improved, further improving the practicality and reliability of the tire pressure sensor.

[0050] In one embodiment, the reference Figure 1 、 Figure 4 and Figure 5 The support base 20 is provided with a battery slot 24 that is compatible with the battery 30. The slot wall of the battery slot 24 is provided with a plurality of first latching protrusions 25. The first latching protrusions 25 all extend in a direction away from the slot wall of the battery slot 24. The support base 20 is also provided with a pressing slot 26 that is connected to the battery slot 24. A pressing end spring component 80 extending into the battery slot 24 is provided in the pressing slot 26. The pressing end spring component 80 is electrically connected to the PCBA sensing module 40.

[0051] Specifically, the battery slot 24 is generally a circular slot that is compatible with the battery 30. The first locking protrusion 25 is arranged on the slot wall of the battery slot 24. The pressing end spring member 80 is arranged in the pressing slot 26 on the side of the battery slot 24. The pressing end spring member 80 can be the positive terminal connector of the battery 30. One end of the positive terminal connector is set as a snap spring piece, and the other end extends through the support seat 20 to the fixed slot 28 and is correspondingly connected to the PCBA sensing component. The pressing end spring member 80 extends into the battery slot 24 so as to be able to correspondingly clamp the edge of the battery 30. Under the combined action of the first locking protrusion 25 and the pressing end spring member 80, the battery 30 can be fixed in the battery slot 24 under normal circumstances.

[0052] It should be noted that the number of the first locking protrusions 25 can be two, and the two first locking protrusions 25 and the pressing end spring member 80 are distributed in a herringbone shape at the edge of the battery slot 24, thereby effectively improving the fixing effect of the battery 30.

[0053] In one embodiment, the reference Figure 2 and Figure 5 On the basis of the above embodiment, a fixing groove 28 corresponding to the PCBA sensing module 40 is further provided on the support base 20, and a plurality of latching notches 27 are provided on the groove wall of the fixing groove 28, and the latching notches 27 are all provided with a second latching protrusion 29 extending into the fixing groove 28.

[0054] Specifically, the second latching protrusion 29 can extend into the fixing slot 28 under normal conditions to clamp the PCBA sensing module 40. When the PCBA sensing module 40 needs to be removed, the second latching protrusion 29 is manually pulled toward the side away from the fixing slot 28 to disengage the second latching protrusion 29 from the PCBA sensing module 40. The PCBA sensing module 40 can then freely enter and exit the fixing slot 28.

[0055] It should be pointed out that the number of the positioning notches 27 can be two, and the two positioning notches 27 are arranged opposite to each other, or the number of the positioning notches 27 can be four, and the four positioning notches 27 are arranged opposite to each other in pairs, and a second positioning protrusion 29 is provided in each corresponding positioning notch 27. By providing multiple second positioning protrusions 29, the fixing effect of the PCBA sensing module 40 can be further enhanced.

[0056] In one embodiment, the reference Figure 2 and Figure 5 On the basis of the above embodiment, a fixed end spring member 90 is provided at the bottom of the battery slot 24 , and the fixed end spring member 90 is tilted toward the battery slot 24 .

[0057] Specifically, the fixed end spring component 90 is usually a negative terminal connector opposite to the pressing end spring component 80. The fixed end spring component 90 can be tilted toward the battery slot 24 when in a free state, so that when the pressing end spring component 80 contacts the snap-on battery 30, the battery 30 automatically tilts out of the battery slot 24 at one end under the support of the fixed end spring component 90, thereby facilitating the replacement of the battery 30.

[0058] In one embodiment, the reference Figure 4 and Figure 5 On the basis of the above embodiment, a docking groove 17 is provided on one side of the housing 10 corresponding to the opening. The docking groove 17 is adapted to the sealing door 21 and is communicated with the guide groove 15 .

[0059] Specifically, by opening a docking groove 17 corresponding to the sealing door 21 on the shell 10, the gap between the sealing door 21 and the shell 10 is effectively reduced, thereby further optimizing the airtightness of the installation cavity 13 and providing a guarantee for the accuracy and precision of the pressure detection of the tire pressure sensor.

[0060] In one embodiment, the reference Figure 4 and Figure 5 On the basis of the above embodiment, a sealing groove 16 is provided at the bottom of the docking groove 17 , and a sealing member 50 corresponding to the sealing groove 16 is sleeved on the support seat 20 .

[0061] Specifically, the seal 50 is a sealing ring, and a sealing protrusion corresponding to the guide groove 15 is provided on the seal 50. By opening the sealing groove 16 and setting the corresponding seal 50, the seal 50 can fill the gap between the sealing door 21 and the shell 10, thereby effectively improving the airtightness of the installation cavity 13, thereby preventing dust or moisture from entering the tire pressure sensor, and thus providing a guarantee for the normal use of the tire pressure sensor. In addition, when the support seat 20 and the shell 10 are tightly connected, the sealing door 21 and the shell 10 are integrated, so that the side wall with an opening on the shell 10 becomes a completely sealed side, so that the side wall is integrated with the overall smooth lines of the product, and the overall appearance is more coordinated and beautiful.

[0062] In one embodiment, the reference Figure 3 and Figure 4 A plurality of assisting elastic members 60 are provided at the bottom of the docking groove 17 , and the assisting elastic members 60 extend toward the opening.

[0063] Specifically, the assisting elastic member 60 is in a compressed state when the support seat 20 is tightly connected to the shell 10. By setting the assisting elastic member 60, when the support seat 20 is removed, the support seat 20 can automatically pop out a part of the shell 10 under the elastic force of the assisting elastic member 60, thereby providing convenience for personnel operation and further improving the practicality of the tire pressure sensor.

[0064] In one embodiment, the reference Figure 2 and Figure 3 A waterproof groove is provided on the side wall of the housing 10 corresponding to the ventilation hole away from the PCBA sensing component, and a waterproof breathable membrane 12 is provided in the waterproof groove.

[0065] Specifically, the waterproof breathable membrane 12 is riveted into the waterproof groove so that the PCBA sensing component can more accurately sense the changes in the air pressure in the tire, while preventing water vapor in the tire from entering the tire pressure sensor, so that the tire pressure sensor has a certain waterproof performance.

[0066] It should be noted that the above embodiments can be freely combined as needed. The above are only preferred embodiments of the present invention. It should be noted that those skilled in the art can make several improvements and modifications without departing from the principles of the present invention, and such improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A detachable tire pressure sensing device, characterized in that: include: A housing, wherein an opening and a vent are formed on the housing, and a hollow installation cavity is formed inside the housing, wherein the installation cavity is in communication with the opening and the vent; A support base, one end of which is provided with a sealing door adapted to the opening, the sealing door being detachably snap-connected to the housing, and the support base being adapted to the mounting cavity so that the support base can slide into or out of the mounting cavity along the opening; A PCBA sensing module is detachably mounted on a side of the support base near the vent hole; A battery is detachably mounted on the support base and electrically connected to the PCBA sensing module.

2. The detachable tire pressure sensing device according to claim 1, characterized in that: A slot is provided on the side wall of the housing corresponding to the opening; A pressing groove is provided on the side wall of the sealing door corresponding to the card slot, and an elastic hook piece corresponding to the card slot is extended from the bottom of the pressing groove. The elastic hook piece extends out of the pressing groove so as to be able to be correspondingly inserted into the card slot.

3. The detachable tire pressure sensing device according to claim 2, characterized in that: A guide groove is provided on a side wall of the housing corresponding to the installation cavity, and the guide groove is provided along the direction of the opening; The support seat is provided with a guide protrusion corresponding to the guide groove, so that the support seat can slide into or out of the installation cavity along the guide groove.

4. The detachable tire pressure sensing device according to any one of claims 1 to 3, characterized in that: The support base is provided with a battery slot adapted for the battery, and a plurality of first latching protrusions are provided on the slot wall of the battery slot, and the first latching protrusions all extend in a direction away from the slot wall of the battery slot; The support seat is further provided with a pressing groove connected to the battery slot. A pressing end spring component extending into the battery slot is provided in the pressing groove. The pressing end spring component is electrically connected to the PCBA sensing module.

5. The detachable tire pressure sensing device according to claim 4, characterized in that: The support seat is also provided with a fixing groove corresponding to the PCBA sensing module, and a plurality of positioning notches are provided on the groove wall of the fixing groove, and each of the positioning notches is provided with a second positioning protrusion extending into the fixing groove.

6. The detachable tire pressure sensing device according to claim 5, characterized in that: A fixed end spring component is provided at the bottom of the battery slot, and the fixed end spring component is tilted toward the battery slot.

7. The detachable tire pressure sensing device according to claim 3, characterized in that: A docking groove is provided on one side of the shell corresponding to the opening. The docking groove is matched with the sealing door and is communicated with the guide groove.

8. The detachable tire pressure sensing device according to claim 7, characterized in that: A sealing groove is provided at the bottom of the docking groove; The support seat is sleeved with a sealing member corresponding to the sealing groove.

9. The detachable tire pressure sensing device according to claim 8, characterized in that: A plurality of power-assisting elastic members are provided at the bottom of the docking groove, and the power-assisting elastic members extend toward the opening.

10. The detachable tire pressure sensing device according to any one of claims 5 to 9, characterized in that: A waterproof groove is provided on the shell, and the waterproof groove is provided at one end of the vent hole away from the PCBA sensing module. A waterproof breathable membrane is provided in the waterproof groove.

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