Tire pressure sensor with replaceable battery

Abstract

The tire pressure sensor comprises a tire pressure body, a PCBA sensing assembly, a battery holder and a press fit structure, the tire pressure body comprises an upper shell and a lower shell, the upper shell and the lower shell are detachably connected, a containing groove facing the upper shell is formed in the lower shell, and the upper shell and the lower shell are detachably connected. A containing groove is formed in the lower shell, a vent hole is formed in the groove bottom, corresponding to the containing groove, of the lower shell, the PCBA sensing assembly is clamped in the side, close to the vent hole, of the interior of the containing groove, the battery holder is stacked on the side, away from the vent hole, of the PCBA sensing assembly, a battery groove is formed in the side, away from the PCBA sensing assembly, of the battery holder, and a battery is detachably clamped in the battery groove correspondingly. The pressing structure is arranged on the side, facing the containing groove, of the upper shell, the pressing structure correspondingly abuts against the battery holder when the upper shell and the lower shell are connected, the battery and the PCBA sensing assembly are convenient to replace, and therefore the service life of the sensor is effectively prolonged, and economic practicability of the sensor is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of real-time tire pressure monitoring equipment, and further relates to a tire pressure sensor with a replaceable battery. Background Art

[0002] With the rapid development of the automotive industry and the increasing number of cars on the road, driving safety has become a paramount concern. As the only part of a car that comes into direct contact with the road, the tire's pressure has a profound impact on the car's handling, fuel economy, braking performance, and driving stability. For example, excessively high tire pressure reduces the tire's contact area with the road, reducing grip and potentially causing loss of control during braking and steering. Meanwhile, excessively low pressure increases rolling resistance, accelerates tire wear, and can even lead to blowouts. Statistics show that tire failures account for a significant proportion of all traffic accidents, and the majority of these are closely related to abnormal tire pressure. Therefore, real-time and accurate monitoring of tire pressure has become crucial for ensuring safe driving, leading to the emergence of tire pressure sensors, which play an indispensable role in the automotive industry.

[0003] In the existing technology, tire pressure sensors generally include a battery module and a PCBA sensing module. Currently, the battery module and PCBA sensing module of tire pressure sensors on the market are generally non-detachable. This means that once the battery module runs out of power or the PCBA sensing module fails, it is impossible to repair or replace the components. A new sensor must be replaced, which increases the cost of use and causes environmental pollution and waste of resources. Utility Model Content

[0004] In view of the above technical problems, the purpose of the present invention is to provide a tire pressure sensor with a replaceable battery, 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 tire pressure sensor with a replaceable battery, comprising:

[0006] A tire pressure body, comprising an upper shell and a lower shell, the upper shell and the lower shell being detachably connected, the lower shell having an interior defining a receiving groove facing the upper shell, and the lower shell having an air vent at the bottom thereof corresponding to the receiving groove;

[0007] A PCBA sensing component is clamped in the receiving groove on a side close to the vent hole;

[0008] A battery holder, the battery holder being stacked on a side of the PCBA sensing component away from the vent, the battery holder being provided with a battery slot on a side away from the PCBA sensing component, the battery slot being correspondingly and detachably secured with a battery;

[0009] A pressing structure is provided on a side of the upper shell facing the accommodating groove, and the pressing structure presses against the battery seat when the upper shell and the lower shell are connected.

[0010] By adopting the detachable corresponding connection between the upper shell and the lower shell, and the PCBA sensing component and the battery being detachably installed in the accommodating groove, the battery and the PCBA sensing component can be easily replaced, thereby effectively improving the service life and economic practicality of the sensor.

[0011] In some embodiments, a plurality of latching protrusions are provided on the wall of the battery slot, and the latching protrusions all extend in a direction away from the wall of the battery slot;

[0012] The battery seat includes a pressing portion, and the pressing portion is provided with a pressing end spring member. The pressing end spring member extends into the battery slot to be able to snap and fix the battery.

[0013] By setting the card point protrusion and the pressing end spring component, the battery can be fixed in the battery slot under normal circumstances under the combined action of the card point protrusion and the pressing end spring component. At the same time, the battery can be loaded and unloaded by pressing the end spring component, which effectively improves the convenience of replacing the battery of the tire pressure sensor.

[0014] In some embodiments, a fixed end spring is provided on the battery seat corresponding to the bottom of the battery slot, and the fixed end spring can be tilted toward the battery slot when in a free state.

[0015] By setting the fixed end spring member to tilt toward the battery slot, when the end spring member is pressed to contact the buckle battery, the battery will automatically tilt out of the battery slot under the support of the fixed end spring member, thereby facilitating battery replacement.

[0016] In some embodiments, a limiting groove is provided in the lower shell at one end close to the vent hole, and the PCBA sensing component and the battery holder are correspondingly stacked and clamped in the limiting groove.

[0017] By providing a limit groove, the PCBA sensing component and battery holder can be stably set in the accommodating groove, thereby preventing the PCBA sensing component and battery holder from being separated from their original positions during vehicle driving, effectively improving the stability and reliability of the overall structure, and thus providing a guarantee for the normal operation of the tire pressure sensor.

[0018] In some embodiments, a plurality of fixing holes are provided on the PCBA sensing component, and a plurality of fixing members are provided on a side of the battery holder close to the PCBA sensing component, and the fixing members are correspondingly inserted into the fixing holes.

[0019] By setting the fixing parts under the battery holder and inserting them into the fixing holes, the battery holder and PCBA sensing assembly can remain relatively stable, thereby further improving the stability of the tire pressure sensor.

[0020] In some embodiments, a plurality of positioning holes are provided on the battery holder, and a plurality of positioning members are provided on a side of the PCBA sensing assembly close to the battery holder, and the positioning members are correspondingly inserted into the positioning holes.

[0021] By setting positioning parts and opening positioning holes corresponding to the positioning parts, it is ensured that during the installation process, the battery holder can be accurately and quickly placed in the predetermined position above the PCBA sensing component, which provides convenience for the assembly and parts replacement of the tire pressure sensor and further improves the stability of the structure in the accommodating groove.

[0022] In some embodiments, the upper shell is provided with a connecting portion and a cover body, the connecting portion is correspondingly connected to the cover body, and the connecting portion is provided with an external thread;

[0023] An internal thread corresponding to the external thread is provided on a groove wall of the accommodating groove close to one end of the upper shell, so that the upper shell and the lower shell can be connected with each other by corresponding threads.

[0024] By setting up a threaded connection between the upper shell and the lower shell, the upper shell and the lower shell can be tightly connected due to the meshing action of the threads, while ensuring that they still maintain a good connection state under external forces such as vibration and impact. The threaded connection also has good sealing performance, effectively ensuring the sealing performance in the receiving groove. In addition, the threaded connection also makes the upper shell and the lower shell easy to load and unload, further improving the practicality of the product.

[0025] In some embodiments, a sealing portion is provided at one end of the connecting portion away from the cover body, and the sealing portion is adapted to the accommodating groove. A plurality of annular sealing grooves are provided on the side wall of the sealing portion, and the annular sealing grooves are distributed along the axial direction of the sealing portion. Sealing members are each provided in the annular sealing grooves.

[0026] By providing a sealing portion and a sealing member sleeved on the sealing portion, the sealing performance of the connection between the upper shell and the lower shell is further improved, thereby ensuring the accuracy and precision of the air pressure detection of the tire pressure sensor.

[0027] In some embodiments, a pressing groove is formed on one end of the sealing portion away from the connecting portion;

[0028] The pressing structure is a pressing rib, which is arranged in the pressing groove and extends out of the pressing groove;

[0029] The battery seat is provided with a docking groove corresponding to the pressing rib position.

[0030] By setting press-fit ribs and opening corresponding docking grooves, the strength and stability of the connection between the upper and lower shells are effectively enhanced, making them less likely to separate or misalign after assembly; it also helps guide the accurate docking of the upper and lower shells, and also strengthens the structural strength of the upper shell, thereby improving the quality and durability of the product.

[0031] In some embodiments, a waterproof breathable membrane is provided on a side of the vent hole close to the PCBA sensing component.

[0032] Compared with the prior art, the tire pressure sensor with replaceable battery provided by the present invention has the following advantages:

[0033] Beneficial effects:

[0034] 1. The battery-replaceable tire pressure sensor provided by this utility model utilizes a removable upper and lower housings that are correspondingly connected, while the PCBA sensing assembly and battery are removably mounted in a receiving slot. This facilitates replacement of the battery and PCBA sensing assembly, thereby effectively extending the service life and economical practicality of the sensor.

[0035] 2. The tire pressure sensor with a replaceable battery provided by this utility model is provided with a spring element at the press end and a protruding latch point, so that users can replace and remove the battery with a simple press, further improving the convenience of overall structural installation, thereby effectively enhancing the practicality and product competitiveness of the device;

[0036] 3. The battery-replaceable tire pressure sensor provided by this utility model utilizes a seal to effectively enhance the sensor's sealing performance and ensure air pressure stability within the sensor, thereby guaranteeing the accuracy and precision of test results. Furthermore, the internal components are protected from contamination by dust and impurities, further extending the durability and service life of the tire pressure sensor. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] 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.

[0038] Figure 1 This is a schematic diagram of the three-dimensional structure of a tire pressure sensor with a replaceable battery according to a preferred embodiment of the present invention;

[0039] Figure 2 This is an exploded schematic diagram of parts of a tire pressure sensor with a replaceable battery according to a preferred embodiment of the present invention;

[0040] Figure 3 1 is a schematic cross-sectional view of a tire pressure sensor with a replaceable battery according to a preferred embodiment of the present invention;

[0041] Figure 4 This is a schematic structural diagram of a battery holder for a tire pressure sensor with a replaceable battery according to a preferred embodiment of the present invention;

[0042] Figure 5 This is a structural schematic diagram of the lower housing of a tire pressure sensor with a replaceable battery according to a preferred embodiment of the present utility model;

[0043] Figure 6 It is a structural schematic diagram of the upper housing of a tire pressure sensor with replaceable batteries according to a preferred embodiment of the present utility model.

[0044] Description of Figure Numbers:

[0045] Upper shell 10, connecting part 11, sealing part 12, seal 13, external thread 14, pressing rib 15, lower shell 20, air intake structure 21, accommodating groove 22, limiting groove 23, vent 24, internal thread 25, battery holder 30, battery slot 31, card point protrusion 32, pressing part 33, docking groove 34, battery 40, PCBA sensing component 50, pressing end spring component 51, fixed end spring component 52, waterproof breathable membrane 60, valve mouth 70. DETAILED DESCRIPTION

[0046] 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.

[0047] 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."

[0048] 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.

[0049] 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.

[0050] 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.

[0051] In one embodiment, the reference Figure 1 、 Figure 2 and Figure 3 The present invention provides a tire pressure sensor with a replaceable battery 40, including a tire pressure body, a PCBA sensing component 50, a battery holder 30 and a pressing structure, wherein the tire pressure body includes an upper shell 10 and a lower shell 20, the upper shell 10 and the lower shell 20 are detachably connected, the interior of the lower shell 20 is provided with a receiving groove 22 facing the upper shell 10, and the bottom of the lower shell 20 corresponding to the receiving groove 22 is provided with a vent 24, the PCBA sensing component 50 is clamped in the receiving groove 22 on a side close to the vent 24, the battery holder 30 is stacked on a side of the PCBA sensing component 50 away from the vent 24, and a battery slot 31 is defined on the battery holder 30 on a side away from the PCBA sensing component 50, and the battery 40 is detachably clamped in the battery slot 31, and the pressing structure is provided on the side of the upper shell 10 facing the receiving groove 22, and the pressing structure is pressed against the battery holder 30 when the upper shell 10 and the lower shell 20 are connected.

[0052] Specifically, an air intake structure 21 is provided at one end of the tire pressure body, and the air intake structure 21 has an air intake port. The air intake structure 21 is fixedly connected to the valve 70 by screws, and the valve 70 is connected to the receiving groove 22 through the air intake port. The PCBA sensing component 50 is used to detect the change of gas pressure and convert and process the relevant data and transmit it out. The PCBA sensing component 50 generally includes a pressure sensor, a processor and a communication antenna. The communication antenna and the pressure sensor are arranged on the side of the processor near the vent 24 to better detect the gas pressure and transmit signals. The upper shell 10 and the lower shell 20 can be The connection is detachable, and the battery holder 30 is connected to the terminal corner connector on the processor through the terminal. At the same time, the battery 40 is detachably fixed in the battery slot 31 on the battery holder 30, so that the battery 40 can power the processor and the pressure sensor. The battery holder 30 and the PCBA sensing component 50 are stacked in the receiving slot 22. When the upper shell 10 and the lower shell 20 are correspondingly connected, the pressing structure on the upper shell 10 can press the battery holder 30 accordingly, so that the battery holder 30 and the PCBA sensing component 50 can be stably fixed in the receiving slot 22, so that the tire pressure sensor can work stably.

[0053] It should be noted that the battery 40 is usually a button battery, so as to meet the requirements of effectively reducing the size and weight of the tire pressure sensor while providing power.

[0054] In one embodiment, the reference Figure 1 and Figure 4 On the basis of the above embodiment, a plurality of latching protrusions 32 are provided on the wall of the battery slot 31, and the latching protrusions 32 extend in a direction away from the wall of the battery slot 31; the battery holder 30 includes a pressing portion 33, and the pressing portion 33 is provided with a pressing end spring member 51, which extends into the battery slot 31 to be able to snap and fix the battery 40.

[0055] Specifically, the battery slot 31 is generally a circular slot that is compatible with the battery 40. The pressing portion 33 is arranged on the side of the battery holder 30 corresponding to the battery slot 31 and is connected to the battery slot 31. The pressing end spring member 51 can be the positive terminal connector of the battery 40. One end of the positive terminal connector is set as a snap spring piece, and the other end extends through the pressing portion 33 to the side of the battery holder 30 corresponding to the PCBA sensing component 50, so that it can be connected to the PCBA sensing component 50. The snap spring piece extends into the battery slot 31 to be able to correspondingly clamp the edge of the battery 40. In addition, the clamping point protrusion 32 is arranged on the slot wall of the battery slot 31 corresponding to the side away from the pressing portion 33. Under the combined action of the clamping point protrusion 32 and the snap spring piece, the battery 40 can be fixed in the battery slot 31 under normal circumstances.

[0056] It should be pointed out that the number of the card point protrusions 32 can be two, and the two card point protrusions 32 and the snap springs are distributed in a herringbone shape on the edge of the battery slot 31. The number of the card point protrusions 32 can be three, and the three card point protrusions 32 and the snap springs are distributed in a square shape on the edge of the battery slot 31. The number of the card point protrusions 32 can also be other numbers. The specific number of card point protrusions 32 depends on actual needs and is not limited here.

[0057] In one embodiment, the reference Figure 2 and Figure 4 On the basis of the above embodiment, a fixed end spring member 52 is provided at the bottom of the battery holder 30 corresponding to the battery slot 31 , and the fixed end spring member 52 can be tilted toward the battery slot 31 when in a free state.

[0058] Specifically, the fixed end spring component 52 is usually a negative terminal connector opposite to the pressing end spring component 51. The fixed end spring component 52 can be tilted toward the battery slot 31 when in a free state, so that when the pressing end spring component 51 contacts the snap-on battery 40, the battery 40 automatically tilts out of the battery slot 31 at one end under the support of the fixed end spring component 52, thereby facilitating the replacement of the battery 40.

[0059] In one embodiment, the reference Figure 2 and Figure 5 A limiting groove 23 is provided at one end of the lower shell 20 near the vent hole, and the PCBA sensing component 50 and the battery holder 30 are stacked and carded in the limiting groove 23 accordingly.

[0060] Specifically, the outline of the PCBA sensing component 50 is the same as that of the battery holder 30, and the limiting groove 23 is adapted to the outline of the PCBA sensing component 50, and is usually an irregular shape, so that the PCBA sensing component 50 and the battery holder 30 can be stably set in the accommodating groove 22, thereby preventing the PCBA sensing component 50 and the battery holder 30 from being separated from their original positions during vehicle driving, effectively improving the stability and reliability of the overall structure, and thus providing a guarantee for the normal operation of the tire pressure sensor.

[0061] In one embodiment, based on the above embodiment, a plurality of fixing holes are provided on the PCBA sensing component 50, and a plurality of fixing parts are provided on a side of the battery holder 30 close to the PCBA sensing component 50, and the fixing parts are correspondingly inserted into the fixing holes.

[0062] Specifically, several fixing holes are provided on the PCBA sensing assembly 50. During the actual installation process, the fixing parts under the battery holder 30 are inserted into the corresponding fixing holes to make the battery holder 30 and the PCBA sensing assembly 50 relatively stable, thereby further improving the stability of the tire pressure sensor.

[0063] In one embodiment, based on the above embodiment, a plurality of positioning holes are provided on the battery holder 30 , and a plurality of positioning members are provided on a side of the PCBA sensing assembly 50 close to the battery holder 30 , and the positioning members are correspondingly inserted into the positioning holes.

[0064] Specifically, by setting a positioning piece and opening a positioning hole corresponding to the positioning piece, it is ensured that during the installation process, the battery holder 30 can be accurately and quickly placed at a predetermined position above the PCBA sensing assembly 50, which provides convenience for the assembly and parts replacement of the tire pressure sensor, and further improves the stability of the structure in the accommodating groove 22.

[0065] In one embodiment, the reference Figure 1 、 Figure 2 、 Figure 5 and Figure 6 On the basis of the above embodiment, a connecting portion 11 and a cover body are provided on the upper shell 10, and the connecting portion 11 is correspondingly connected to the cover body, and an external thread 14 is provided on the connecting portion 11; an internal thread 25 corresponding to the external thread 14 is opened on the groove wall of the accommodating groove 22 near one end of the upper shell 10, so that the upper shell 10 and the lower shell 20 can be correspondingly threadedly connected.

[0066] Specifically, by setting up a threaded connection between the upper shell 10 and the lower shell 20, the upper shell 10 and the lower shell 20 can be tightly connected by the meshing action of the threads, while ensuring that they still maintain a good connection state under external forces such as vibration and impact. The threaded connection also has good sealing performance, effectively ensuring the sealing performance in the receiving groove 22. In addition, the threaded connection also makes it easy to load and unload the upper shell 10 and the lower shell 20, further improving the practicality of the product.

[0067] It should be noted that the connecting portion 11 can be provided on the lower shell 20 , and a thread groove is correspondingly provided in the upper shell 10 , and the internal thread 25 is correspondingly provided on the groove wall of the thread groove of the upper shell 10 .

[0068] In one embodiment, the reference Figure 1 、 Figure 2 and Figure 3 On the basis of the above embodiment, a sealing portion 12 is provided at one end of the connecting portion 11 away from the cover body, and the sealing portion 12 is adapted to the accommodating groove 22. A plurality of annular sealing grooves are opened on the side wall of the sealing portion 12, and the annular sealing grooves are distributed along the axial direction of the sealing portion 12. Seals 13 are each provided in the annular sealing grooves.

[0069] Specifically, the seal can be an annular sealant. By providing a sealing part 12 and a seal 13 sleeved on the sealing part 12, the sealing performance of the connection between the upper shell 10 and the lower shell 20 is further improved, thereby providing a guarantee for the accuracy and precision of the air pressure detection of the tire pressure sensor.

[0070] In one embodiment, the reference Figure 2 、 Figure 4 and Figure 6 On the basis of the above embodiment, a pressing groove is provided on the end of the sealing portion 12 away from the connecting portion 11, and the pressing structure is a pressing rib 15. The pressing rib 15 is arranged in the pressing groove and extends out of the pressing groove. A docking groove 34 corresponding to the pressing rib 15 is provided on the battery holder 30.

[0071] Specifically, the pressing rib 15 can be a cross-shaped protruding structure. By setting the pressing rib 15 and opening the corresponding docking groove 34, the strength and stability of the connection between the upper shell 10 and the lower shell 20 are effectively enhanced, making them less likely to separate or dislocate after assembly; it also helps to guide the accurate docking of the upper shell 10 and the lower shell 20, and also strengthens the structural strength of the upper shell 10, thereby improving the quality and durability of the product.

[0072] In one embodiment, the reference Figure 1 、 Figure 2 and Figure 3 A waterproof and breathable membrane 60 is provided on one side of the vent hole close to the PCBA sensing component 50.

[0073] Specifically, the waterproof and breathable membrane 60 is riveted on the side of the vent 24 close to the PCBA sensing component 50, so that the PCBA sensing component 50 can 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.

[0074] It should be noted that the waterproof breathable membrane 60 can also be adhered to one side of the vent hole 24 by means of glue, or can be fixed to one side of the vent hole 24 by means of pressing.

[0075] 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 tire pressure sensor with a replaceable battery, characterized in that: include: A tire pressure body, comprising an upper shell and a lower shell, the upper shell and the lower shell being detachably connected, the lower shell having an interior defining a receiving groove facing the upper shell, and the lower shell having an air vent at the bottom thereof corresponding to the receiving groove; A PCBA sensing component is clamped in the receiving groove on a side close to the vent hole; A battery holder, the battery holder being stacked on a side of the PCBA sensing component away from the vent, the battery holder being provided with a battery slot on a side away from the PCBA sensing component, the battery slot being correspondingly and detachably secured with a battery; A pressing structure is provided on a side of the upper shell facing the accommodating groove, and the pressing structure presses against the battery seat when the upper shell and the lower shell are connected.

2. The tire pressure sensor with replaceable battery according to claim 1, characterized in that: A plurality of latching protrusions are provided on the wall of the battery slot, and the latching protrusions all extend in a direction away from the wall of the battery slot; The battery seat includes a pressing portion, and the pressing portion is provided with a pressing end spring member. The pressing end spring member extends into the battery slot to be able to snap and fix the battery.

3. The tire pressure sensor with replaceable battery according to claim 2, characterized in that: A fixed end spring component is provided on the battery seat corresponding to the bottom of the battery slot, and the fixed end spring component can be tilted toward the battery slot when in a free state.

4. The tire pressure sensor with replaceable battery according to any one of claims 1 to 3, characterized in that: A limiting groove is provided in the lower shell at one end close to the vent hole, and the PCBA sensing component and the battery holder are correspondingly stacked and clamped in the limiting groove.

5. The tire pressure sensor with replaceable battery according to claim 4, characterized in that: The PCBA sensing component is provided with a plurality of fixing holes, and a plurality of fixing parts are provided on a side of the battery holder close to the PCBA sensing component, and the fixing parts are correspondingly inserted into the fixing holes.

6. The tire pressure sensor with replaceable battery according to claim 5, characterized in that: The battery holder is provided with a plurality of positioning holes, and a plurality of positioning members are provided on a side of the PCBA sensing component close to the battery holder, and the positioning members are correspondingly inserted into the positioning holes.

7. The tire pressure sensor with replaceable battery according to claim 6, characterized in that: The upper shell is provided with a connecting portion and a cover body, the connecting portion is correspondingly connected to the cover body, and the connecting portion is provided with an external thread; An internal thread corresponding to the external thread is provided on a groove wall of the accommodating groove close to one end of the upper shell, so that the upper shell and the lower shell can be connected with each other by corresponding threads.

8. The tire pressure sensor with replaceable battery according to claim 7, characterized in that: A sealing portion is provided at one end of the connecting portion away from the cover body, and the sealing portion is adapted to the accommodating groove. A plurality of annular sealing grooves are opened on the side wall of the sealing portion, and the annular sealing grooves are distributed along the axial direction of the sealing portion. Seals are each provided in the annular sealing grooves.

9. The tire pressure sensor with replaceable battery according to claim 8, characterized in that: A pressing groove is formed on one end of the sealing portion away from the connecting portion; The pressing structure is a pressing rib, which is arranged in the pressing groove and extends out of the pressing groove; The battery seat is provided with a docking groove corresponding to the pressing rib position.

10. The tire pressure sensor with replaceable battery according to any one of claims 5 to 9, characterized in that: A waterproof and breathable membrane is provided on one side of the vent hole close to the PCBA sensing component.

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