Battery mounting structure of Bluetooth temperature sensor

Abstract

A battery installation structure of a Bluetooth temperature sensor comprises a shell, a resistor assembly, a framework, a button battery and a PCB are arranged in the shell, a round battery bin is arranged on the front side of the framework, the axial direction of the battery bin is perpendicular to the axial direction of the shell, the button battery is arranged in the battery bin, and the PCB is arranged in the battery bin. The inner wall of the battery bin is arranged on the upper side and the lower side of the button battery, the PCB is vertically arranged on the front side of the battery bin and fixedly connected with the framework, the button battery is in circuit connection with the PCB, the resistor assembly is arranged on the lower side of the framework and is in circuit connection with the PCB, and a cover is arranged at the top of the shell. According to the utility model, under the condition that the maximum outer diameter of the sensor is not changed, the PCB and the button cell are vertically arranged inside the shell, the PCB can be directly in circuit connection with the resistor assembly without passing through the side surface of the button cell, the button cell with larger diameter and thickness can be selected, the cell capacity is improved, and the service life of the product is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of physics, and more particularly to a temperature measuring device, especially a battery mounting structure for a Bluetooth temperature sensor. Background Technology

[0002] In existing technologies, Bluetooth temperature sensors such as Figures 1-2 As shown, the sensor includes a cylindrical housing 1. Inside the housing 1, from bottom to top, are arranged a resistor assembly, a frame 3, a button battery 5, a PCB board 4, a cover 7, and an epoxy encapsulation body 8. The resistor assembly converts temperature values ​​into electrical signals through a thermistor. The frame 3 serves as a structural component, with its lower end connected to the resistor assembly and its upper end supporting the button battery 5 and the PCB board 6. The button battery 5 is installed between the PCB board 6 and the frame 3 to power the entire sensor. The transmitting antenna is integrated into the PCB board 4. The cover is placed on top of the PCB board 4 and then sealed by the epoxy encapsulation body 8. Both the PCB board 4 and the button battery 5 are circular and placed coaxially with the housing 1.

[0003] Due to the limited internal space of the casing 1, both the positive and negative terminals of the button battery 5 need to be connected to the PCB board 4 via conductors. The PCB board 4 also needs to be connected to the resistor assembly below via wires. Since both conductors and wires need to pass through the outside of the button battery 5, they occupy space on the outer casing 1. Therefore, the button battery 5 can only use a smaller diameter, such as the CR1225 type. However, small-diameter button batteries also have smaller capacities, for example, only 50mAh. In actual use, with continuous discharge, the product can only maintain its lifespan for one year, resulting in a short product lifespan. Summary of the Invention

[0004] The purpose of this utility model is to provide a battery mounting structure for a Bluetooth temperature sensor. This battery mounting structure for a Bluetooth temperature sensor aims to solve the technical problems in the prior art, such as limited internal space of the Bluetooth temperature sensor housing, resulting in small battery capacity and short product lifespan.

[0005] This utility model discloses a battery mounting structure for a Bluetooth temperature sensor, comprising a housing, within which are disposed a resistor assembly, a frame, a button battery, and a PCB board. The frame has a circular battery compartment on its front side, the axis of which is perpendicular to the axis of the housing. The button battery is disposed within the battery compartment, with the inner walls of the battery compartment located on the upper and lower sides of the button battery. The PCB board is disposed parallel to the front side of the button battery and is fixedly connected to the frame. The button battery is electrically connected to the PCB board. The resistor assembly is disposed on the lower side of the frame and is electrically connected to the PCB board. A cover is provided on the top of the housing.

[0006] Furthermore, a notch is provided in the inner wall of the battery compartment on the upper side of the button battery, and an elastic positive electrode pin is provided in the notch. One end of the elastic positive electrode pin is biased toward the circumference of the button battery, and the other end of the elastic positive electrode pin extends to the positive input terminal of the PCB board on the front side of the button battery and is electrically connected thereto. An elastic negative electrode pin is provided on the rear side of the PCB board, one end of the elastic negative electrode pin is biased toward one end face of the button battery, and the other end of the elastic negative electrode pin is electrically connected to the negative input terminal of the PCB board.

[0007] Furthermore, positioning pins are respectively provided on the left and right sides of the front side of the frame below the battery compartment, and positioning holes are respectively provided on the left and right sides of the lower part of the PCB board, through which the positioning pins pass.

[0008] Furthermore, threaded holes are provided on the left and right sides above the battery compartment on the front side of the frame, and mounting holes are provided on the left and right sides of the upper part of the PCB board, with screws passing through the mounting holes and engaging with the threaded holes.

[0009] Furthermore, a transmitting antenna is provided on the inside of the cover.

[0010] Furthermore, the button battery is of the CR2050 specification.

[0011] Compared with existing technologies, the advantages of this invention are positive and significant. Without changing the maximum outer diameter of the sensor, this invention vertically mounts the PCB board and button battery inside the housing. The PCB board can be directly connected to the resistor component circuit without passing through the side of the button battery. This allows for the use of button batteries with larger diameters and thicknesses, increasing battery capacity and thus extending the product's lifespan. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of a Bluetooth temperature sensor in the prior art.

[0013] Figure 2 This is a structural cross-sectional view of a Bluetooth temperature sensor based on existing technology.

[0014] Figure 3 This is a schematic diagram of the structure of this utility model.

[0015] Figure 4 This is a front sectional view of the present invention.

[0016] Figure 5 This is a side sectional view of the present invention.

[0017] Figure 6 This is a schematic diagram of the skeleton of this utility model.

[0018] Figure 7This is a schematic diagram of the button battery of this utility model.

[0019] Figure 8 This is a schematic diagram of the PCB board structure of this utility model.

[0020] The markings in the diagram are: 1. Housing; 2. Resistor assembly; 3. Frame; 301. Battery compartment; 302. Notch; 303. Locating pin; 304. Threaded hole; 305. Screw; 4. PCB board; 401. Positive input terminal; 402. Negative input terminal; 403. Locating hole; 404. Mounting hole; 5. Button battery; 501. Flexible positive lead; 502. Flexible negative lead; 6. Transmitting antenna; 7. Cover; 8. Epoxy encapsulation. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments, but this does not limit the present invention.

[0022] like Figures 3-8 As shown, the present invention discloses a battery mounting structure for a Bluetooth temperature sensor, comprising a cylindrical housing 1, wherein a resistor assembly 2, a frame 3, a button battery 5, and a PCB board 4 are disposed within the housing 1. A circular battery compartment 301 is disposed on the front side of the frame 3, the axis of which is perpendicular to the axis of the housing 1. The button battery 5 is disposed within the battery compartment 301, and the inner walls of the battery compartment 301 are disposed on the upper and lower sides of the button battery 5. The PCB board 4 is disposed parallel to the front side of the button battery 5 and is fixedly connected to the frame 3. The button battery 5 is electrically connected to the PCB board 4. The resistor assembly 2 is disposed below the frame 3 and is electrically connected to the PCB board 4. A cover 7 is disposed on the top of the housing 1.

[0023] Specifically, the battery compartment 301 is located at the center inside the housing 1. The axis of the button battery 5 is perpendicular to the axis of the housing 1. The inner wall of the battery compartment 301 is located on the upper and lower sides of the button battery 5, which allows the left and right sides of the button battery 5 to be as close as possible to the inner wall of the housing 1. This increases the radius of the button battery 5 without changing the maximum outer diameter of the housing 1. The PCB board 5 is arranged parallel to the front side of the button battery 5. The lower part of the PCB board 5 is directly connected to the resistor assembly 2 circuit via wires, without needing to go through the side of the button battery 5. The resistor assembly 2 includes a thermistor, whose resistance changes accordingly when the temperature changes, thus reflecting the temperature value through an electrical signal.

[0024] Furthermore, a notch 302 is provided in the inner wall of the battery compartment 301 on the upper side of the button battery 5. An elastic positive electrode pin 501 is provided in the notch 302. One end of the elastic positive electrode pin 501 is biased toward the circumference of the button battery 5. The other end of the elastic positive electrode pin 501 extends to the positive input terminal 401 of the PCB board 4 on the front side of the button battery 5 and is electrically connected thereto. An elastic negative electrode pin 402 is provided on the rear side of the PCB board 5. One end of the elastic negative electrode pin 402 is biased toward one end face of the button battery 5. The other end of the elastic negative electrode pin 502 is electrically connected to the negative input terminal 402 of the PCB board 4.

[0025] Specifically, the negative terminal of the button battery 5 is installed facing forward in the battery compartment 301, the positive terminal located on the circumferential side of the button battery 5 is electrically connected to the positive input terminal 401 of the PCB board 4 through the flexible positive terminal pin 501, and the negative terminal located on the front side of the button battery 5 is electrically connected to the negative input terminal 402 of the PCB board 4 through the flexible negative terminal pin. When the button battery 5 is installed from the side, the flexible positive terminal pin 501 is recessed into the notch 302 to avoid obstructing the button battery 5.

[0026] Furthermore, positioning pins 303 are respectively provided on the left and right sides of the front side of the frame 3 below the battery compartment 301, and positioning holes 403 are respectively provided on the left and right sides of the lower part of the PCB board 4, through which the positioning pins 303 pass.

[0027] Specifically, by using the positioning pin 303 and the positioning hole 403 together, the PCB board 4 can be accurately installed on the front side of the frame, which facilitates fixation and pin connection.

[0028] Furthermore, threaded holes 304 are respectively provided on the left and right sides above the battery compartment 301 on the front side of the frame 3, and mounting holes 404 are respectively provided on the left and right sides of the upper part of the PCB board 4. Screws 305 pass through the mounting holes 404 and engage with the threaded holes 304.

[0029] Specifically, the PCB board 4 can be firmly fixed to the frame 3 using two screws 305.

[0030] Furthermore, a transmitting antenna 6 is provided on the inner side of the cover 7.

[0031] Specifically, the transmitting antenna 6 can be connected to the PCB board 4 via a wire through the frame. Compared with the existing technology, the transmitting antenna 6 is no longer integrated into the PCB board 4, but is set separately inside the cover 7, which makes the transmitting antenna 6 closer to the outside, which can improve signal quality and avoid interference.

[0032] Furthermore, the button battery 5 is of the CR2050 specification.

[0033] Specifically, it uses CR2050 button batteries with a capacity of 320mAh. In actual use, the product can be used for more than five years as the battery discharges.

[0034] Without changing the maximum outer diameter of the sensor, this utility model vertically sets the PCB board 4 and the button battery 5 inside the housing 1. The PCB board 4 can be directly connected to the circuit of the resistor assembly 2 without passing through the side of the button battery 5. A button battery 5 with a larger diameter and thickness can be selected to increase the battery capacity and thus improve the service life of the product.

Claims

1. A battery mounting structure for a Bluetooth temperature sensor, comprising a cylindrical housing (1), wherein a resistor assembly (2), a frame (3), a button battery (5), and a PCB board (4) are disposed within the housing (1), characterized in that: A circular battery compartment (301) is provided on the front side of the frame (3). The axial direction of the battery compartment (301) is perpendicular to the axial direction of the housing (1). A button battery (5) is placed inside the battery compartment (301). The inner wall of the battery compartment (301) is placed on the upper and lower sides of the button battery (5). The PCB board (4) is arranged parallel to the front side of the button battery (5). The PCB board (4) is fixedly connected to the frame (3). The button battery (5) is electrically connected to the PCB board (4). The resistor assembly (2) is placed on the lower side of the frame (3). The resistor assembly (2) is electrically connected to the PCB board (4). A cover (7) is provided on the top of the housing (1).

2. The battery mounting structure of the Bluetooth temperature sensor as described in claim 1, characterized in that: A notch (302) is provided in the inner wall of the battery compartment (301) on the upper side of the button battery (5). A flexible positive electrode pin (501) is provided in the notch (302). One end of the flexible positive electrode pin (501) is biased toward the circumference of the button battery (5). The other end of the flexible positive electrode pin (501) extends to the positive input terminal (401) of the PCB board (4) on the front side of the button battery (5) and is electrically connected thereto. A flexible negative electrode pin (502) is provided on the rear side of the PCB board (4). One end of the flexible negative electrode pin (502) is biased toward one end face of the button battery (5). The other end of the flexible negative electrode pin (502) is electrically connected to the negative input terminal (402) of the PCB board (4).

3. The battery mounting structure of the Bluetooth temperature sensor as described in claim 1, characterized in that: Positioning pins (303) are respectively provided on the left and right sides below the battery compartment (301) on the front side of the frame (3), and positioning holes (403) are respectively provided on the left and right sides of the lower part of the PCB board (4), and the positioning pins (303) pass through the positioning holes (403).

4. The battery mounting structure of the Bluetooth temperature sensor as described in claim 1, characterized in that: The front side of the frame (3) is provided with threaded holes (304) on the left and right sides above the battery compartment (301), and the upper left and right sides of the PCB board (4) are provided with mounting holes (404). Screws (305) pass through the mounting holes (404) and engage with the threaded holes (304).

5. The battery mounting structure of the Bluetooth temperature sensor as described in claim 1, characterized in that: The inner side of the cover (7) is provided with a transmitting antenna (6).

6. The battery mounting structure of the Bluetooth temperature sensor as described in claim 1, characterized in that: The button cell (5) is a CR2050.

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