External temperature detection device and handheld terminal for temperature detection

Abstract

The present invention relates to an external temperature detection device and a handheld terminal that can be used for temperature detection. The external temperature detection device comprises a bracket with upper and lower ends penetrating therethrough, a temperature sensor for detecting temperature being arranged in the inner cavity of the bracket, and an FPC cable for transmitting control signals and temperature data, one end of which is connected to the temperature sensor and the other end of which extends into a through hole of a host shell and is connected to a mainboard arranged in the host shell. The external temperature detection device can be installed on a host in an additional form to increase the temperature detection function of the host, and the host has flexible and diverse functions and low implementation cost.

Description

Technical Field

[0001] The present invention relates to the technical field of temperature detection, and in particular to an external temperature detection device and a handheld terminal that can be used for temperature detection. Background Art

[0002] In the prior art, temperature measurement equipment is usually an independent device, including an independent power supply and data processing module, which is large in size and high in cost; while industrial PDA and smart POS equipment do not have a temperature measurement function. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide an external temperature detection device and a handheld terminal that can be used for temperature detection.

[0004] The technical solution adopted by the present invention to solve the technical problem is: construct an external temperature detection device, including a bracket with upper and lower ends penetrating, the inner cavity of the bracket is provided with a temperature sensor for detecting temperature, and an FPC cable with one end connected to the temperature sensor and the other end extending into the through hole of the host housing and connected to the mainboard in the host housing for transmitting control signals and temperature data;

[0005] It also includes a metal block which is sleeved on the outer periphery of the temperature sensor and is used for heat conduction to quickly balance the temperature of the external environment and the temperature around the temperature sensor;

[0006] A positioning step is provided inside the bracket, a first screw hole is provided on the positioning step, a second screw hole is provided on the bottom plate of the temperature sensor, and a third screw hole is provided on the bottom plate of the metal block;

[0007] The external temperature detection device also includes bolts for penetrating the first screw hole, the second screw hole and the third screw hole to fix the temperature sensor and the metal block to the inside of the bracket.

[0008] Preferably, first mounting holes are provided on both sides of the through hole, and a second mounting hole matching with the first mounting hole is provided at the bottom of the bracket;

[0009] It also includes a fastener for penetrating the first mounting hole and the second mounting hole to mount the bracket on the host housing.

[0010] Preferably, a positioning groove is provided at the first end of the host housing; the through hole and the first mounting hole are provided in the positioning groove;

[0011] The external temperature detection device also includes a silicone sheet for preventing water and / or dust from entering the bracket and the host housing;

[0012] The silicone sheet is provided with a positioning hole corresponding to the through hole;

[0013] The silicone sheet is provided with a third mounting hole matching the first mounting hole and the second mounting hole;

[0014] The fastener is sequentially inserted into the first mounting hole, the third mounting hole and the second mounting hole to mount the silicone sheet in the positioning groove.

[0015] Preferably, a groove is provided at the top of the bracket;

[0016] The external temperature detection device also includes a first mask installed in the groove by an adhesive;

[0017] A mask through hole corresponding to the temperature sensor is provided in the middle of the first mask.

[0018] Preferably, the adhesive is a double-sided tape.

[0019] Preferably, the first mask is a glass sheet or a plastic sheet.

[0020] Preferably, a limiting groove is provided on the top of the metal block;

[0021] The external temperature detection device also includes a second shielding sheet which is detachably installed in the limiting groove and is used for preventing water and dust and isolating the temperature sensor from external interference.

[0022] Preferably, the second mask is a mask made of sapphire, zinc selenide, zinc sulfide, calcium fluoride, magnesium fluoride, germanium or silicon.

[0023] A handheld terminal for temperature detection comprises a host, wherein the host comprises a host housing, a mainboard and a mainboard connector connected to the mainboard are arranged in the mainboard housing, and a through hole is arranged at a first end of the mainboard housing;

[0024] It also includes a temperature detection device detachably mounted on the mainframe housing, the temperature detection device being the external temperature detection device mentioned above;

[0025] The external temperature detection device includes a bracket with upper and lower ends penetrating therethrough, wherein the inner cavity of the bracket is provided with a temperature sensor for detecting temperature, and an FPC cable having one end connected to the temperature sensor and the other end extending into the through hole and connected to the mainboard connector for transmitting control signals and temperature data.

[0026] Preferably, first mounting holes are provided on both sides of the through hole, and a second mounting hole matching with the first mounting hole is provided at the bottom of the bracket;

[0027] It also includes a fastener for penetrating the first mounting hole and the second mounting hole to mount the bracket on the host housing.

[0028] The implementation of the present invention has the following beneficial effects: the external temperature detection device includes a bracket with upper and lower ends penetrating therethrough, the inner cavity of the bracket is provided with a temperature sensor for detecting the temperature, and an FPC cable having one end connected to the temperature sensor and the other end extending into the through hole and connected to the mainboard connector for transmitting control signals and temperature data. The external temperature detection device can be installed on the host in an additional form to increase the temperature detection function of the host, and the host functions are flexible and diverse and the implementation cost is low. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The present invention will be further described below with reference to the accompanying drawings and embodiments, in which:

[0030] Figure 1 It is a schematic diagram of the structure of the external temperature detection device of the present invention when it is separated from the host;

[0031] Figure 2 It is a schematic diagram of the structure of the external temperature detection device of the present invention and the host in the assembled state;

[0032] Figure 3 It is a structural schematic diagram of the host of the present invention;

[0033] Figure 4 yes Figure 3 Schematic diagram of the structural details of the mainframe;

[0034] Figure 5 , Figure 6 , Figure 7 It is a schematic structural diagram of the bracket 1 of the present invention;

[0035] Figure 8 It is a structural schematic diagram of the external temperature detection device and the host in the assembled state according to the first embodiment of the present invention;

[0036] Fig. 9 yes Figure 8 Schematic diagram of the structural details of part A;

[0037] Fig.10 yes Figure 8 Exploded view of the external temperature detection device;

[0038] Fig.11 It is a structural schematic diagram of the external temperature detection device and the host in the assembled state according to the second embodiment of the present invention;

[0039] Fig.12 yes Fig.11 Schematic diagram of the structural details of part B;

[0040] Fig.13 yes Fig.11 Exploded view of the external temperature detection device. DETAILED DESCRIPTION

[0041] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific embodiments of the present invention are now described in detail with reference to the accompanying drawings. In the following description, it should be understood that the directions or positional relationships indicated by "front", "back", "up", "down", "left", "right", "longitudinal", "horizontal", "vertical", "horizontal", "top", "bottom", "inside", "outside", "head", "tail", etc. are based on the directions or positional relationships shown in the accompanying drawings, are constructed and operated in a specific direction, and are only for the convenience of describing the present technical solution, rather than indicating that the device or element referred to must have a specific direction, and therefore cannot be understood as a limitation to the present invention.

[0042] It should also be noted that, unless otherwise clearly specified and limited, the terms such as "installed", "connected", "connected", "fixed", "set" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. When an element is referred to as being "on" or "under" another element, the element can be "directly" or "indirectly" located on the other element, or there may be one or more intermediate elements. The terms "first", "second", "third", etc. are only for the convenience of describing the present technical solution, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first", "second", "third", etc. can explicitly or implicitly include one or more of the features. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0043] In the following description, specific details such as specific system structures, technologies, etc. are provided for the purpose of illustration rather than limitation, so as to provide a thorough understanding of the embodiments of the present invention. However, it should be clear to those skilled in the art that the present invention may be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to prevent unnecessary details from obstructing the description of the present invention.

[0044] like Figure 1-10 As shown, an external temperature detection device of the present invention is detachably mounted on a host 100. The host 100 includes a host housing 101. A mainboard 102 and a mainboard connector 103 connected to the mainboard 102 are arranged in the mainboard housing 101. A through hole 1011 is arranged at the first end of the mainboard housing 101.

[0045] like Figure 5-10As shown, the external temperature detection device includes a bracket 1 with upper and lower ends passing through, a temperature sensor 2 for detecting temperature is provided in the inner cavity of the bracket 1, and an FPC cable 3 for transmitting control signals and temperature data, one end of which is connected to the temperature sensor 2 and the other end of which extends into a through hole 1011 of the host housing 101 and is connected to a mainboard 102 provided in the host housing 101. Furthermore, a power supply is provided in the host housing 101, and the power supply supplies power to the temperature sensor 2 through the FPC cable 3.

[0046] Furthermore, the external temperature detection device also includes a metal block 4 which is sleeved on the outer periphery of the temperature sensor 2 and is used for heat conduction to quickly balance the temperature of the external environment and the temperature around the temperature sensor 2. It can be understood that the metal block 4 protects the temperature sensor 2 to a certain extent, conducts heat, quickly balances the temperature of the external environment and the temperature around the temperature sensor 2, and improves the reliability, stability and accuracy of temperature detection.

[0047] Furthermore, the temperature sensor 2 includes a bottom plate and a sensor unit disposed on the bottom plate, and the FPC cable 3 is connected to the bottom plate of the temperature sensor 2 .

[0048] The metal block 4 includes a main body sleeved on the outer periphery of the sensor unit, the main body is a hollow sleeve structure, and a bottom plate arranged on the lower periphery of the main body.

[0049] Furthermore, a positioning step 12 is provided inside the bracket 1 , a first screw hole 121 is provided on the positioning step 12 , a second screw hole 21 is provided on the bottom plate of the temperature sensor 2 , and a third screw hole 41 is provided on the bottom plate of the metal block 4 .

[0050] The external temperature detection device also includes bolts for penetrating the first screw hole 121, the second screw hole 21 and the third screw hole 41 to fix the temperature sensor 2 and the metal block 4 to the inside of the bracket 1. The first screw hole 121 can extend and pass through the bottom of the bracket 1 to facilitate screwing in fasteners such as bolts from the bottom of the bracket 1 for fixing.

[0051] It can be understood that the temperature sensor 2 and the metal block 4 are detachably fixed to the inside of the bracket 1 by screwing. Of course, they can also be fixed by double-sided tape or glue, or by snap-fitting, etc. There are many ways to fix them, which are not specifically limited here.

[0052] Furthermore, first mounting holes 1012 are provided on both sides of the through hole 1011, and second mounting holes 13 matching the first mounting holes 1012 are provided at the bottom of the bracket 1, and a fastener 9 is also included for penetrating the first mounting holes 1012 and the second mounting holes 13 to mount the bracket 1 on the host housing 101. The fastener 9 can be a bolt, and specifically, the host housing 101 is first disassembled to expose the first mounting holes 1012 on the inner side of the host housing 101, and the bolt is screwed in from the inner side of the host housing 101 to fix the bracket 1 on the host housing 101, and then the host housing 101 is reassembled.

[0053] Furthermore, a positioning groove 1013 may be provided at the first end of the host housing 101 , and the through hole 1011 and the first mounting hole 1012 are provided in the positioning groove 1013 .

[0054] The external temperature detection device also includes a silicone sheet 5 for preventing water and / or dust from entering the bracket 1 and the host housing 101. The silicone sheet 5 is provided with a positioning hole 51 corresponding to the through hole 1011, and the silicone sheet 5 is provided with a third mounting hole 52 matching the first mounting hole 1012 and the second mounting hole. The fastener 9 is sequentially penetrated through the first mounting hole 1012, the third mounting hole 52 and the second mounting hole to install the silicone sheet 5 in the positioning groove 1013. It can be understood that the silicone sheet 5 is installed in the positioning groove 1013 to achieve waterproof and dustproof, and the aforementioned FPC cable 3 enters the host housing 101 through the positioning hole 51 and the through hole 1011.

[0055] Furthermore, a groove 11 is provided at the top of the bracket 1, and the external temperature detection device further comprises a first mask 6 installed in the groove 11 through an adhesive 7, and a mask through hole 61 corresponding to the temperature sensor 2 is provided in the middle of the first mask 6. In this embodiment, the first mask 6 is a glass sheet or a plastic sheet, which is mainly for aesthetic effect and protects the sensor to a certain extent, and the adhesive 7 is a double-sided adhesive, which can be glue, etc. In some embodiments, the first mask 6 may not be provided.

[0056] like Figure 11-13 As shown, in some embodiments, a limiting groove is further provided on the top of the metal block 4, and the top edge of the metal block 4 extends toward the top surface of the temperature sensor 2 to form an edge surround.

[0057] The external temperature detection device also includes a second mask 8 that is detachably installed in the limiting groove for waterproofing and dustproofing and isolating the temperature sensor 2 from external interference. It can be understood that the second mask 8 is fixed on the top of the metal block 4, which can achieve waterproofing and dustproofing to a certain extent, isolate the temperature sensor 2 from external interference, improve the measurement accuracy, protect the temperature sensor 2, and extend the service life of the temperature sensor 2. Of course, the aforementioned first mask 6 can also be directly replaced by the second mask 8, and the mask through hole 61 can also be filled and covered by the second mask 8. Furthermore, the embodiment can also be provided without the aforementioned first mask 6, and the second mask 8 can play a complete protective role.

[0058] Further, the second mask 8 is made of sapphire, zinc selenide, zinc sulfide, calcium fluoride, magnesium fluoride, germanium or silicon. Specifically, the second mask 8 can be made of infrared light-transmitting material, but is not limited to the above materials.

[0059] The present application also discloses a handheld terminal that can be used for temperature detection, including a host 100, the host 100 includes a host housing 101, a mainboard 102 and a mainboard connector 103 connected to the mainboard 102 are arranged in the mainboard housing 101, and a through hole 1011 is arranged at the first end of the host housing 101.

[0060] It also includes a temperature detection device that can be detachably mounted on the host housing 101, and the temperature detection device is the above-mentioned external temperature detection device.

[0061] The external temperature detection device includes a bracket 1 with upper and lower ends passing through, a temperature sensor 2 for detecting temperature is provided in the inner cavity of the bracket 1, and an FPC cable 3 for transmitting control signals and temperature data, one end of which is connected to the temperature sensor 2, and the other end extends into the through hole 1011 and is connected to the motherboard connector. Further, a power supply is provided in the host housing 101, and the power supply supplies power to the temperature sensor 2 through the FPC cable 3. The motherboard 102 is used to receive the temperature data detected by the temperature sensor 2, and process the output result, and also send a control signal to the temperature sensor 2 to control the temperature sensor 2 to detect or enter a dormant state. The temperature sensor 2 has a certain temperature data processing function.

[0062] Furthermore, first mounting holes 1012 are provided on both sides of the through hole 1011, and a second mounting hole matching the first mounting hole 1012 is provided at the bottom of the bracket 1, and also includes a fastener 9 for penetrating the first mounting hole 1012 and the second mounting hole to install the bracket 1 on the host housing 101.

[0063] The fastener 9 can be a bolt. Specifically, the host housing 101 is first disassembled to expose the first mounting hole 1012 inside the host housing 101, and the bolt is screwed in from the inside of the host housing 101 to fix the bracket 1 on the host housing 101, and then the host housing 101 is reassembled.

[0064] The external temperature detection device can be installed on the host in an additional form to increase the temperature detection function of the host, and the functions of the host are flexible and diverse and the implementation cost is low.

[0065] Functional modular design, the host can be equipped with temperature detection function by externally assembling temperature sensor device, which is flexible and convenient.

[0066] The external modules share the host power supply and data processing module, and the host adds a temperature detection function at a low cost.

[0067] It can be understood that the above embodiments only express the preferred implementation modes of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the patent scope of the present invention. It should be pointed out that, for ordinary technicians in this field, the above technical features can be freely combined without departing from the concept of the present invention, and several deformations and improvements can be made, which all belong to the protection scope of the present invention. Therefore, all equivalent changes and modifications made to the scope of the claims of the present invention should belong to the coverage of the claims of the present invention.

Claims

1. An external temperature detection device, characterized in that: The invention comprises a bracket (1) with upper and lower ends passing through, the inner cavity of the bracket (1) being provided with a temperature sensor (2) for detecting temperature, and an FPC cable (3) having one end connected to the temperature sensor (2) and the other end extending into a through hole (1011) of a host housing (101) and connected to a mainboard (102) provided in the host housing (101) for transmitting control signals and temperature data; the temperature sensor (2) comprising a bottom plate and a sensor unit provided on the bottom plate, the FPC cable (3) being connected to the bottom plate of the temperature sensor (2); It also includes a metal block (4) which is sleeved on the outer periphery of the temperature sensor (2) and is used for conducting heat to quickly balance the temperature of the external environment and the temperature around the temperature sensor (2); A positioning step (12) is provided inside the bracket (1), a first screw hole (121) is provided on the positioning step (12), a second screw hole is provided on the bottom plate of the temperature sensor (2), and a third screw hole is provided on the bottom plate of the metal block (4); The external temperature detection device also includes bolts used to penetrate the first screw hole (121), the second screw hole and the third screw hole to fix the temperature sensor (2) and the metal block (4) inside the bracket (1).

2. The external temperature detection device according to claim 1, characterized in that: First mounting holes (1012) are provided on both sides of the through hole (1011), and second mounting holes (13) matching with the first mounting holes (1012) are provided at the bottom of the bracket (1); It also includes a fastener (9) for penetrating the first mounting hole (1012) and the second mounting hole (13) to mount the bracket (1) on the host housing (101).

3. The external temperature detection device according to claim 2, characterized in that: A positioning groove (1013) is provided at the first end of the main body housing (101); the through hole (1011) and the first mounting hole (1012) are provided in the positioning groove (1013); The external temperature detection device further comprises a silicone sheet (5) for preventing water and / or dust from entering the bracket (1) and the interior of the host housing (101); The silicone sheet (5) is provided with a positioning hole (51) corresponding to the through hole (1011); The silicone sheet (5) is provided with a third mounting hole (52) that matches the first mounting hole (1012) and the second mounting hole (13); The fastener (9) is sequentially inserted into the first mounting hole (1012), the third mounting hole (52) and the second mounting hole (13) to mount the silicone sheet (5) in the positioning groove (1013).

4. The external temperature detection device according to claim 3, characterized in that: The top end of the bracket (1) is provided with a groove (11); The external temperature detection device also includes a first mask (6) mounted in the groove (11) via an adhesive (7); A mask through hole (61) corresponding to the temperature sensor (2) is provided in the middle of the first mask (6).

5. The external temperature detection device according to claim 4, characterized in that: The adhesive (7) is a double-sided adhesive.

6. The external temperature detection device according to claim 4, characterized in that: The first mask (6) is a glass sheet or a plastic sheet.

7. The external temperature detection device according to claim 1, characterized in that: A limiting groove is provided on the top of the metal block (4); The external temperature detection device also comprises a second shielding sheet (8) which is detachably mounted in the limiting groove and is used for preventing water and dust and isolating the temperature sensor (2) from external interference.

8. The external temperature detection device according to claim 7, characterized in that: The second mask (8) is a mask made of one of sapphire, zinc selenide, zinc sulfide, calcium fluoride, magnesium fluoride, germanium or silicon.

9. A handheld terminal that can be used for temperature detection, characterized in that: The host (100) comprises a host housing (101), a mainboard (102) and a mainboard connector (103) connected to the mainboard (102) are arranged in the mainboard housing (101), and a through hole (1011) is arranged at a first end of the mainboard housing (101); It also comprises a temperature detection device detachably mounted on the mainframe housing (101), the temperature detection device being the external temperature detection device according to any one of claims 1 to 8 above; The external temperature detection device comprises a bracket (1) with upper and lower ends penetrating therethrough, the inner cavity of the bracket (1) being provided with a temperature sensor (2) for detecting temperature, and an FPC cable (3) having one end connected to the temperature sensor (2) and the other end extending into the through hole (1011) and connected to the mainboard connector (103) for transmitting control signals and temperature data.

10. The handheld terminal for temperature detection according to claim 9, characterized in that: First mounting holes (1012) are provided on both sides of the through hole (1011), and second mounting holes (13) matching with the first mounting holes (1012) are provided at the bottom of the bracket (1); It also includes a fastener (9) for penetrating the first mounting hole (1012) and the second mounting hole (13) to mount the bracket (1) on the host housing (101).

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