Temperature detection device

Abstract

The embodiment of the present application relates to the technical field of temperature measuring equipment, in particular to a temperature detection device, which comprises a first shell, a second shell, a circuit board, a charging electrode and a thermocouple; the first shell is a conductor, the first shell is provided with a first inner cavity, and the first shell has a first end and a second end which are opposite to each other; the second shell is connected to the first shell and located at the second end; the circuit board is arranged in the first inner cavity, the circuit board has a first electrode contact and a second electrode contact which are opposite in polarity, the first electrode contact is electrically connected to the first shell, so as to be electrically connected to a first electrode of a charging power supply through the first shell; the charging electrode is connected to the second shell; and the thermocouple is electrically connected between the second electrode contact and the charging electrode. Since the thermocouple can electrically connect the charging electrode and the circuit board to form part of a charging loop, it is not necessary to arrange an additional conductive connecting piece between the circuit board and the charging electrode, which is beneficial to simplify the structure of the device and reduce the size of the device.

Description

Technical Field

[0001] This application relates to the field of temperature measuring equipment technology, and in particular to a temperature detection device. Background Technology

[0002] Currently, temperature detection devices typically include a circuit board and two charging electrodes. The charging electrodes are electrically connected to the circuit board via conductive connectors. The two charging electrodes are used to connect to the positive and negative terminals of a charging power source, respectively, to form a charging circuit and charge the temperature detection device. In some cases, when the distance between the charging electrodes and the circuit board is relatively large, the conductive connectors between them also need to be long and large. This results in the conductive connectors occupying a significant amount of space inside the temperature detection device. Since the temperature detection device also needs to house other structures such as antennas, the overall size and structure of the device become large and complex. Utility Model Content

[0003] This application provides a temperature detection device, which includes a first housing, a second housing, a circuit board, a charging electrode, and a thermocouple. The first housing is a conductor and has a first inner cavity. The first housing has a first end and a second end that are opposite to each other. The first end is adapted to contact the object to be measured. The second housing is connected to the first housing and located at the second end. The circuit board is disposed in the first inner cavity and has a first electrode contact and a second electrode contact with opposite polarities. The first electrode contact is electrically connected to the first housing for electrical connection with the first electrode of a charging power supply through the first housing. The charging electrode is connected to the second housing and is adapted to be electrically connected with the second electrode of the charging power supply. The thermocouple is electrically connected between the second electrode contact and the charging electrode.

[0004] Optionally, in some embodiments, the second housing has a second inner cavity communicating with the first inner cavity, and the end of the second housing away from the first housing has a power connection port communicating with the second inner cavity. The charging electrode is disposed in the second inner cavity, and at least a portion of the structure of the charging electrode is exposed to the second housing through the power connection port.

[0005] Optionally, in some embodiments, the charging electrode has a connecting groove on the side facing the first housing, and at least a portion of the thermocouple structure is located in the connecting groove and welded to the charging electrode.

[0006] Optionally, in some embodiments, the temperature detection device further includes a first limiting member fixedly disposed in the first inner cavity. The first limiting member is an insulator and has a first clearance channel, through which the thermocouple passes.

[0007] Optionally, in some embodiments, the thermocouple includes a first conductor portion and a second conductor portion connected together. The first conductor portion is welded to a second electrode contact and to a charging electrode. At least a portion of the second conductor portion is spirally arranged. The temperature detection device also includes a power supply circuit disposed on a circuit board. The power supply circuit is electrically connected to the second conductor portion. The power supply circuit is used to supply an excitation current to the second conductor portion to cause the second conductor portion to resonate and thereby radiate a radio frequency signal.

[0008] Optionally, in some embodiments, the temperature detection device further includes a second limiting member fixedly disposed in the first inner cavity. The second limiting member is an insulator and has a second clearance channel and a third clearance channel that are isolated from each other. The first conductor portion passes through the second clearance channel and the second conductor portion passes through the third clearance channel.

[0009] Optionally, in some embodiments, the temperature detection device further includes an isolator, which is an insulator, disposed between the first housing and the charging electrode to separate the first housing from the charging electrode, the charging electrode being connected to the end of the second housing facing the first housing.

[0010] Optionally, in some embodiments, the second housing has a second inner cavity, and the charging electrode has a third inner cavity communicating with the second inner cavity; the isolation member includes an isolation sleeve and an isolation ring, one end of the isolation sleeve is housed in the first inner cavity, the other end is housed in the third inner cavity, and the isolation ring is sleeved on the outer periphery of the isolation sleeve and located between the first housing and the charging electrode.

[0011] Optionally, in some embodiments, the temperature detection device further includes a conductive element disposed in a third inner cavity, the conductive element being welded to a thermocouple, and at least a portion of the structure of the conductive element being squeezed and clamped by a charging electrode and a second housing.

[0012] Optionally, in some embodiments, the temperature detection device further includes conductive springs, which are disposed on the circuit board and elastically abut against the inner wall of the first housing; there are multiple conductive springs, which are disposed on opposite sides of the circuit board.

[0013] In the temperature detection device provided in this application embodiment, the first housing is a conductor and has a first inner cavity. A circuit board is disposed within the first inner cavity, and the circuit board has first electrode contacts and second electrode contacts with opposite polarities. The first electrode contacts are electrically connected to the first housing, and a thermocouple is electrically connected between the second electrode contacts and the charging electrode. Therefore, when the temperature detection device needs charging, the user can electrically connect the first housing and the charging electrode to the two electrodes of the charging power supply, respectively, to form a closed charging circuit to charge the temperature detection device. Since the thermocouple can be used to detect the temperature of the external environment and can also be used to electrically connect the circuit board and the charging electrode to form part of the charging circuit, there is no need to provide additional conductive connectors between the circuit board and the charging electrode. This simplifies the structure of the temperature detection device and reduces its size. Attached Figure Description

[0014] To more clearly illustrate the technical solution of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the overall structure of the temperature detection device in some embodiments of this application.

[0016] Figure 2 yes Figure 1 The diagram shows a partial structural cross-section of the temperature detection device.

[0017] Figure 3 yes Figure 1 A schematic diagram of a partial internal structure of the temperature detection device shown.

[0018] Figure 4 yes Figure 1 The temperature detection device shown is a partial structural cross-sectional view in another embodiment.

[0019] Figure 5 yes Figure 4 A schematic diagram of a partial internal structure of the temperature detection device shown.

[0020] Figure 6 This is a schematic diagram of the overall structure of the temperature detection device in some other embodiments of this application.

[0021] Figure 7 yes Figure 6 The diagram shows a partial structural cross-section of the temperature detection device.

[0022] Figure 8 yes Figure 6A schematic diagram of a partial internal structure of the temperature detection device shown.

[0023] Labeling Explanation: 100, Temperature Detection Device; 10, First Housing; 101, First Inner Cavity; 102, First End; 103, Second End; 11, Second Housing; 110, Second Inner Cavity; 111, Power Connection Port; 12, Circuit Board; 13, Charging Electrode; 131, Connecting Groove; 132, Third Inner Cavity; 14, Thermocouple; 141, First Conductor Part; 142, Second Conductor Part; 15, First Limiting Member; 151, First Clearance Channel; 16, Second Limiting Member; 161, Second Clearance Channel; 162, Third Clearance Channel; 17, Isolator; 171, Isolation Ring; 172, Isolation Sleeve; 173, Wiring Channel; 18, Conductive Component; 19, Conductive Spring; 20, First Sealing Ring; 21, Second Sealing Ring; 22, First Mounting Ring Groove; 23, Second Mounting Ring Groove; 24, Antenna; 25, Separator; 251, Clearance Channel. Detailed Implementation

[0024] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are merely some embodiments of the present application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present application without creative effort are within the scope of protection of the present application.

[0025] In the description of this application, it should be understood that the terms "length," "width," "thickness," "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal," etc., indicate the orientation or state relationship based on the orientation or state relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated devices, elements, or components to having a specific orientation, or to be constructed and operated in a specific orientation.

[0026] Furthermore, in addition to indicating location or state relationships, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in certain situations to indicate a dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0027] Furthermore, the terms "first," "second," etc., are primarily used to distinguish different devices, elements, or components (the specific types and structures may be the same or different), and are not used to indicate or imply the relative importance or quantity of the indicated devices, elements, or components. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0028] Furthermore, unless otherwise explicitly specified or limited, the terms "installation," "connection," "linking," and "fixing," etc., 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; they can refer to the internal connection of two components or merely surface contact. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0029] If certain terms are used in the specification and claims to refer to specific components, those skilled in the art will understand that hardware manufacturers may use different names to refer to the same component. The specification and claims do not distinguish components based on differences in name, but rather on differences in function. For example, the term "comprising" used throughout the specification and claims is an open-ended term and should be interpreted as "including but not limited to"; "generally" means that those skilled in the art can solve the technical problem and basically achieve the technical effect within a certain margin of error.

[0030] Please see Figure 1 This application provides a temperature detection device 100, which is used to contact an object to be measured to obtain the temperature of the object. For example, the temperature detection device 100 may be a food temperature probe (e.g., a barbecue temperature probe, a hot pot temperature probe, etc.) or a household / industrial thermometer. The specific type and application scenario of the temperature detection device 100 are not limited.

[0031] Please also refer to Figure 1 , Figure 2 and Figure 3The temperature detection device 100 includes a first housing 10, a second housing 11, a circuit board 12, a charging electrode 13, and a thermocouple 14. The first housing 10 is the main body of the temperature detection device 100. As a specific example, in this embodiment, the first housing 10 is generally cylindrical. In other embodiments, the first housing 10 may also be generally square or have any other rod-like structure with an arbitrary cross-section; there is no limitation on this. The first housing 10 is a conductor and has a first inner cavity 101, which is the cavity inside the first housing 10. The first housing 10 has a first end 102 and a second end 103 that are opposite to each other. The first end 102 is adapted to contact the object to be measured. As a specific example, in this embodiment, the first end 102 is generally conical to facilitate insertion of the first end 102 into the interior of the object to be measured to measure the internal temperature of the object.

[0032] The second housing 11 is connected to the first housing 10 and located at the second end 103. The second housing 11 is used for the user to hold so that the user can use the temperature detection device 100. As a specific example, in this embodiment, the second housing 11 is generally in the shape of a round rod. In other embodiments, the second housing 11 may also be generally in the shape of a square rod or other rod-shaped structures with arbitrary cross-sections, and there is no limitation thereto.

[0033] Circuit board 12 is disposed in the first inner cavity 101. Circuit board 12 has a first electrode contact (not shown in the figure) and a second electrode contact (not shown in the figure) with opposite polarities. The first electrode contact is electrically connected to the first housing 10 for electrical connection with the first electrode of the charging power supply through the first housing 10. The charging power supply is an external power supply, and the first electrode is the positive or negative electrode of the charging power supply.

[0034] The charging electrode 13 is connected to the second housing 11. The charging electrode 13 is a conductor, made of metal materials such as copper or aluminum, and is suitable for electrical connection with the second electrode of the charging power supply. The second electrode is either the negative or positive electrode of the charging power supply. When the first electrode is positive, the second electrode is negative, and vice versa.

[0035] Thermocouple 14 is a temperature sensing element composed of two different conductors. Thermocouple 14 is installed inside the temperature detection device 100 and is used to detect the ambient temperature. Thermocouple 14 is electrically connected between the second electrode contact and the charging electrode 13 to achieve electrical connection between the charging electrode 13 and the second electrode contact.

[0036] With the above configuration, when the temperature detection device 100 needs charging, the user can electrically connect the first housing 10 and the charging electrode 13 to the two electrodes of the charging power supply, respectively, to form a closed charging circuit and charge the temperature detection device 100. Since the thermocouple 14 can be used to detect the temperature of the external environment and can also electrically connect the circuit board 12 and the charging electrode 13 to form part of the charging circuit, there is no need to provide other conductive connectors between the circuit board 12 and the charging electrode 13. Therefore, it is beneficial to simplify the structure of the temperature detection device 100 and reduce its size.

[0037] Please see Figure 1 and Figure 2 In some embodiments, the second housing 11 is an insulator, for example, it can be made of insulating materials such as ceramics or plastics. The second housing 11 has a second inner cavity 110 communicating with the first inner cavity 101, and an electrical connection port 111 communicating with the second inner cavity 110 is provided at the end of the second housing 11 away from the first housing 10. The second inner cavity 110 is the cavity inside the second housing 11, and the electrical connection port 111 is the opening formed when the second inner cavity 110 penetrates the second housing 11. The charging electrode 13 is disposed in the second inner cavity 110, and at least a portion of the structure of the charging electrode 13 is exposed to the second housing 11 through the electrical connection port 111. With the above arrangement, at least a portion of the structure of the charging electrode 13 is exposed to the second housing 11 through the electrical connection port 111, which not only facilitates the connection of the charging electrode 13 to the positive or negative terminal of the charging power supply to form a charging circuit, but also, since the thermocouple 14 is in direct contact with the charging electrode 13, it is beneficial for the thermocouple 14 to respond quickly to the ambient temperature, thereby improving the detection efficiency of the ambient temperature.

[0038] Please see Figure 2 and Figure 4 In some embodiments, the charging electrode 13 has a connecting groove 131 on the side facing the first housing 10, and at least a portion of the thermocouple 14 is located within the connecting groove 131 and welded to the charging electrode 13. This arrangement ensures a stable electrical connection between the thermocouple 14 and the charging electrode 13. Furthermore, since the welding position between the thermocouple 14 and the charging electrode 13 is located within the connecting groove 131, the charging electrode 13 provides protection for the welding position, further improving the stability and reliability of the connection between the thermocouple 14 and the charging electrode 13.

[0039] Please see Figure 2 and Figure 3In some embodiments, the temperature detection device 100 further includes a first limiting member 15 fixedly disposed in the first inner cavity 101. The first limiting member 15 is an insulator, such as a ceramic part or a plastic part. As a specific example, in this embodiment, the first limiting member 15 is generally cylindrical and is bonded to the inner wall of the first housing 10. In other embodiments, the first limiting member 15 can also be square rod-shaped, block-shaped, or other arbitrary shapes. The first limiting member 15 can also be snap-fitted to the first housing 10 or fixedly connected by fasteners, without limitation. The first limiting member 15 is provided with a first clearance channel 151, which extends generally along the length direction of the first housing 10, and the thermocouple 14 passes through the first clearance channel 151.

[0040] With the above configuration, since the first limiting member 15 is an insulator, it can insulately separate the first housing 10 from the thermocouple 14, thus preventing accidental contact between the first housing 10 and the thermocouple 14 during the charging process of the temperature detection device 100 and causing a short circuit in the charging circuit, thereby improving charging safety. Furthermore, since the thermocouple 14 passes through the first clearance channel 151, the first clearance channel 151 can limit the thermocouple 14, minimizing accidental displacement of the thermocouple 14 and improving the stability of the connection between the thermocouple 14 and the circuit board 12 and the charging electrode 13.

[0041] Please see Figure 2 and Figure 3 In some embodiments, the temperature detection device 100 further includes an antenna 24 and a separator 25. One end of the antenna 24 is located in the first inner cavity 101 and electrically connected to the circuit board 12, while the other end extends into the second inner cavity 110. The separator 25 is an insulator, such as a ceramic or plastic component. The separator 25 is located in the second inner cavity 110 and has a clearance channel 251 with open ends. The clearance channel 251 extends approximately along the length of the second housing 11, and the thermocouple 14 passes through the clearance channel 251. At least a portion of the antenna 24 located in the second inner cavity 110 surrounds the outer periphery of the separator 25.

[0042] With the above arrangement, the antenna 24, which is arranged around the periphery of the separator 25, helps to improve the signal strength and communication quality of the antenna 24 itself. The arrangement of the separator 25 not only prevents the antenna 24 from contacting the thermocouple 14, thereby reducing the impact of the thermocouple 14 on the communication quality of the antenna 24, but also supports the spiral part of the antenna 24, which helps to improve the stability of the antenna 24, that is, improve the overall stability and reliability of the temperature detection device 100.

[0043] Please see Figure 4 and Figure 5In some embodiments, the thermocouple 14 includes a first conductor portion 141 and a second conductor portion 142 connected together. The first conductor portion 141 and the second conductor portion 142 are two different conductor materials, which can be metal or metal alloy. The first conductor portion 141 is welded to the second electrode contact and to the charging electrode 13, and at least a portion of the structure of the second conductor portion 142 is spirally arranged. Specifically, in this embodiment, a portion of the structure of the second conductor portion 142 located in the second inner cavity 110 is spirally arranged to form a spring-like structure. The temperature detection device 100 also includes a power supply circuit (not shown) disposed on the circuit board 12, which is electrically connected to the second conductor portion 142. The power supply circuit is used to supply an excitation current to the second conductor portion 142 to cause the second conductor portion 142 to resonate and thereby radiate a radio frequency signal.

[0044] With the above configuration, since the feed circuit is electrically connected to the second conductor 142, and the feed circuit is used to supply excitation current to the second conductor 142 to cause the second conductor 142 to resonate and radiate radio frequency signals, the thermocouple 14 and the feed circuit can also constitute the antenna of the temperature detection device 100, thus eliminating the need for a separate antenna configuration in the temperature detection device 100. In summary, in addition to its basic temperature measurement function, the thermocouple 14 can not only realize the electrical connection between the charging electrode 13 and the circuit board 12, but also serve as the antenna of the temperature detection device 100. Therefore, the temperature detection device 100 does not need to additionally provide conductive connectors between the charging electrode 13 and the circuit board 12, nor does it need to additionally provide an antenna structure. Thus, the internal component arrangement of the temperature detection device 100 can be simplified, achieving the effect of simplifying the device structure and reducing the device size.

[0045] Please see Figure 4 and Figure 5 In some embodiments, the temperature detection device 100 further includes a second limiting member 16 fixedly disposed in the first inner cavity 101. The second limiting member 16 is an insulator, such as a ceramic part or a plastic part. As a specific example, in this embodiment, the second limiting member 16 is generally cylindrical and is bonded to the inner wall of the first housing 10. In other embodiments, the second limiting member 16 can also be square rod-shaped, block-shaped, or other arbitrary shapes. The second limiting member 16 can also be snap-fitted to the first housing 10 or fixedly connected by fasteners, without limitation. The second limiting member 16 is provided with a second clearance channel 161 and a third clearance channel 162 that are isolated from each other. Both the second clearance channel 161 and the third clearance channel 162 extend generally along the length direction of the first housing 10. The first conductor portion 141 passes through the second clearance channel 161, and the second conductor portion 142 passes through the third clearance channel 162.

[0046] With the above configuration, since the second limiting member 16 is an insulator, it can separate the first conductor portion 141 from the second conductor portion 142, thus preventing the second conductor portion 142, which serves as the antenna, from being interfered with by the first conductor portion 141 and affecting communication quality. Furthermore, since the first conductor portion 141 passes through the second clearance channel 161 and the second conductor portion 142 passes through the third clearance channel 162, the second clearance channel 161 can limit the first conductor portion 141, and the third clearance channel 162 can limit the second conductor portion 142. This minimizes accidental displacement of the thermocouple 14, thereby improving the stability of the connection between the thermocouple 14 and the circuit board 12 and the charging electrode 13. Finally, since the thermocouple 14, used as the antenna, is in direct contact with the charging electrode 13, and at least a portion of the structure of the charging electrode 13 is exposed outside the second housing 11 via the power interface 111, the area of ​​the antenna exposed outside the second housing 11 is increased, which helps to enhance the antenna's communication signal and improve communication quality.

[0047] Please see Figure 6 , Figure 7 and Figure 8 In some other embodiments, the temperature detection device 100 further includes an insulating element 17, which is an insulator, such as a ceramic or plastic component. The insulating element 17 is disposed between the first housing 10 and the charging electrode 13 to separate the first housing 10 from the charging electrode 13, which is connected to the end of the second housing 11 facing the first housing 10. Specifically, in this embodiment, the charging electrode 13 is generally a cylindrical structure open at both ends, with one end sleeved to the insulating element 17 and the other end sleeved to the end of the second housing 11 near the first housing 10.

[0048] With the above configuration, since the isolator 17 is provided and the isolator 17 is an insulator, the isolator 17 can separate the first housing 10 from the charging electrode 13, so as to avoid the first housing 10 from accidentally contacting the charging electrode 13 during the charging process of the temperature detection device 100 and causing a short circuit in the charging circuit, thereby improving charging safety.

[0049] Please see Figure 7 and Figure 8In some embodiments, the charging electrode 13 has a third inner cavity 132 communicating with the second inner cavity 110. The isolation member 17 includes an isolation sleeve 172 and an isolation ring 171. The isolation sleeve 172 is generally cylindrical, and the isolation ring 171 is annular. The isolation sleeve 172 and the isolation ring 171 can be integrally formed and connected. One end of the isolation sleeve 172 is housed in the first inner cavity 101, and the other end is housed in the third inner cavity 132. That is, one end of the isolation sleeve 172 is inserted into the first housing 10, and the other end is inserted into the second housing 11. The isolation ring 171 is sleeved on the outer periphery of the isolation sleeve 172 and located between the first housing 10 and the charging electrode 13. Through the above arrangement, the isolation ring 171 separates the first housing 10 from the charging electrode 13 to avoid accidental contact between the first housing 10 and the charging electrode 13 during the charging process of the temperature detection device 100, which could cause a short circuit in the charging circuit.

[0050] Please see Figure 7 and Figure 8 In some embodiments, the temperature detection device 100 further includes a first sealing ring 20 and a second sealing ring 21. Both the first sealing ring 20 and the second sealing ring 21 are annular structures made of soft, elastic materials such as rubber or silicone. The outer wall of the isolation sleeve 172 is provided with a first mounting ring groove 22 and a second mounting ring groove 23 located on both sides of the isolation ring 171. Both the first mounting ring groove 22 and the second mounting ring groove 23 are annular grooves. The first sealing ring 20 is fitted onto the isolation sleeve 172 and embedded in the first mounting ring groove 22, and the second sealing ring 21 is fitted onto the isolation sleeve 172 and embedded in the second mounting ring groove 23. The first sealing ring 20 is clamped together by the first housing 10 and the inner wall of the first mounting ring groove 22, and the second sealing ring 21 is clamped together by the charging electrode 13 and the inner wall of the second mounting ring groove 23.

[0051] With the above configuration, the first mounting groove 22 provides mounting space for the first sealing ring 20. The first housing 10 and the isolation sleeve 172 together clamp the first sealing ring 20 to form a sealed and waterproof structure, thereby preventing external water from entering the interior of the first housing 10 through the gap between the first housing 10 and the isolation sleeve 172 and causing safety hazards. The second mounting groove 23 provides mounting space for the second sealing ring 21. The charging electrode 13 and the isolation sleeve 172 together clamp the second sealing ring 21 to form a sealed and waterproof structure, thereby preventing external water from entering the interior of the charging electrode 13 through the gap between the charging electrode 13 and the isolation sleeve 172 and causing safety hazards.

[0052] Please see Figure 7In some embodiments, the isolation sleeve 172 is provided with a wiring channel 173, which extends approximately along the length of the first housing 10, and the thermocouple 14 passes through the wiring channel 173. With this arrangement, the wiring channel 173 provides wiring space for the thermocouple 14, so the thermocouple 14 does not need to avoid the isolation sleeve 172 during installation, which helps to reduce the size of the device. Furthermore, since the isolation sleeve 172 surrounds the outer periphery of the thermocouple 14, it can also prevent the thermocouple 14 from accidentally contacting the first housing 10 during the charging process of the temperature detection device 100, thus avoiding a short circuit in the charging circuit and improving charging safety.

[0053] Please see Figure 7 and Figure 8 In some embodiments, the temperature detection device 100 further includes a conductive element 18 disposed in the third inner cavity 132. The conductive element 18 is a conductor, for example, it can be made of a metal material such as copper or aluminum. The conductive element 18 is welded to the thermocouple 14, and at least a portion of the structure of the conductive element 18 is clamped by the charging electrode 13 and the second housing 11. As a specific example, in this embodiment, the conductive element 18 is in the shape of a helical spring. One end of the conductive element 18 is welded to the thermocouple 14, and the other end is sleeved on the end of the second housing 11 facing the first housing 10 and is clamped by the second housing 11 and the charging electrode 13.

[0054] Through the above configuration, the conductive element 18 achieves an electrical connection between the thermocouple 14 and the charging electrode 13, and further achieves an electrical connection between the charging electrode 13 and the circuit board 12, thus forming part of the charging circuit of the temperature detection device 100. Furthermore, since one end of the conductive element 18 is clamped together by the second housing 11 and the charging electrode 13, workers do not need to perform additional connection operations (such as welding) on ​​the conductive element 18 and the charging electrode 13 when assembling the temperature detection device 100, which simplifies the assembly steps of the temperature detection device 100 and improves production assembly efficiency. In other embodiments, the conductive element 18 can also be any shape, such as a rod-shaped structure, a sheet-shaped structure, or a block-shaped structure. The conductive element 18 is simultaneously welded to both the thermocouple 14 and the charging electrode 13 to achieve a stable electrical connection.

[0055] Please refer to 8. In some embodiments, at least a portion of the structure of the thermocouple 14 is spirally arranged and electrically connected to a power supply circuit (not shown) on the circuit board 12. The power supply circuit is used to supply an excitation current to the thermocouple 14 to cause the thermocouple 14 to resonate and radiate radio frequency signals.

[0056] With the above configuration, since the feed circuit is electrically connected to the thermocouple 14, the feed circuit supplies excitation current to the thermocouple 14 to cause it to resonate and radiate radio frequency signals. Therefore, the thermocouple 14 and the feed circuit can also constitute the antenna of the temperature detection device 100, thus eliminating the need for a separate antenna configuration in the temperature detection device 100. Therefore, in addition to its basic temperature measurement function, the thermocouple 14 can not only achieve the electrical connection between the charging electrode 13 and the circuit board 12, but also serve as the antenna of the temperature detection device 100. Thus, the temperature detection device 100 does not require an additional antenna structure, saving on internal component arrangement and simplifying the device structure and reducing its size.

[0057] Please see Figure 2 and Figure 3 In some embodiments, the temperature detection device 100 further includes conductive springs 19, which are conductors and are disposed on the circuit board 12 and elastically abut against the inner wall of the first housing 10. The conductive springs 19 are used to achieve electrical connection between the first housing 10 and the circuit board 12. Multiple conductive springs 19 are provided on both opposite sides of the circuit board 12. With this arrangement, since multiple conductive springs 19 are provided, when one conductive spring 19 has poor contact with the first housing 10, the other conductive springs 19 can still ensure stable conduction between the circuit board 12 and the first housing 10, thus improving charging stability. Furthermore, the conductive springs 19 located on both opposite sides of the circuit board 12 abut against the inner wall of the first housing 10, which not only provide conductivity but also support and fix the circuit board 12. Therefore, there is no need for a separate fixing structure for the circuit board 12, simplifying the device structure and reducing its size.

[0058] In summary, the embodiments of this application provide a temperature detection device 100. When the temperature detection device 100 needs charging, the user can electrically connect the first housing 10 and the charging electrode 13 to the two electrodes of the charging power supply, respectively, to form a closed charging circuit and charge the temperature detection device 100. Since the thermocouple 14 can be used to detect the temperature of the external environment and can also electrically connect the circuit board 12 and the charging electrode 13 to form part of the charging circuit, there is no need to provide other conductive connectors between the circuit board 12 and the charging electrode 13. Therefore, it is beneficial to simplify the structure of the temperature detection device 100 and reduce its size.

[0059] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0060] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and not to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A temperature detection device, characterized in that, include: A first housing, which is a conductor, has a first inner cavity and has a first end and a second end that are opposite to each other. The first end is adapted to contact the object whose temperature is to be measured. The second housing is connected to the first housing and located at the second end; A circuit board is disposed in the first inner cavity. The circuit board has a first electrode contact and a second electrode contact with opposite polarities. The first electrode contact is electrically connected to the first housing for electrical connection with the first electrode of the charging power supply through the first housing. A charging electrode is connected to the second housing, and the charging electrode is adapted to be electrically connected to the second electrode of the charging power supply; as well as A thermocouple, which is electrically connected between the second electrode contact and the charging electrode.

2. The temperature detection device as described in claim 1, characterized in that, The second housing has a second inner cavity communicating with the first inner cavity. The end of the second housing away from the first housing has a power connection port communicating with the second inner cavity. The charging electrode is disposed in the second inner cavity, and at least a portion of the structure of the charging electrode is exposed to the second housing through the power connection port.

3. The temperature detection device as described in claim 2, characterized in that, The charging electrode has a connecting groove on the side facing the first housing, and at least a portion of the thermocouple structure is located in the connecting groove and welded to the charging electrode.

4. The temperature detection device as described in claim 3, characterized in that, The temperature detection device further includes a first limiting member fixedly disposed in the first inner cavity. The first limiting member is an insulator and has a first clearance channel, through which the thermocouple passes.

5. The temperature detection device as described in claim 1, characterized in that, The thermocouple includes a first conductor portion and a second conductor portion connected together. The first conductor portion is welded to the second electrode contact and to the charging electrode. At least a portion of the second conductor portion is spirally arranged. The temperature detection device also includes a power supply circuit disposed on the circuit board. The power supply circuit is electrically connected to the second conductor portion. The power supply circuit is used to supply an excitation current to the second conductor portion to cause the second conductor portion to resonate and radiate radio frequency signals.

6. The temperature detection device as described in claim 5, characterized in that, The temperature detection device further includes a second limiting member fixedly disposed in the first inner cavity. The second limiting member is an insulator. The second limiting member is provided with a second clearance channel and a third clearance channel that are isolated from each other. The first conductor portion passes through the second clearance channel, and the second conductor portion passes through the third clearance channel.

7. The temperature detection device as described in claim 1, characterized in that, The temperature detection device further includes an isolator, which is an insulator. The isolator is disposed between the first housing and the charging electrode to separate the first housing from the charging electrode. The charging electrode is connected to the end of the second housing facing the first housing.

8. The temperature detection device as described in claim 7, characterized in that, The second housing has a second inner cavity, and the charging electrode has a third inner cavity communicating with the second inner cavity; the isolation member includes an isolation sleeve and an isolation ring, one end of the isolation sleeve is housed in the first inner cavity, and the other end is housed in the third inner cavity, and the isolation ring is sleeved on the outer periphery of the isolation sleeve and located between the first housing and the charging electrode.

9. The temperature detection device as described in claim 8, characterized in that, The temperature detection device further includes a conductive element disposed in the third inner cavity, the conductive element being welded to the thermocouple, and at least a portion of the structure of the conductive element being squeezed and clamped by the charging electrode and the second housing.

10. The temperature detection device according to any one of claims 1 to 9, characterized in that, The temperature detection device further includes conductive springs, which are disposed on the circuit board and elastically abut against the inner wall of the first housing; there are multiple conductive springs, and multiple conductive springs are disposed on opposite sides of the circuit board.

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