Temperature sensing probe for household electrical appliance

Abstract

The utility model relates to the technical field of temperature sensing probes, in particular to a temperature sensing probe for household appliances, which comprises a mounting seat, an accommodating groove is arranged at the top of the mounting seat, a fixing plate is arranged in the accommodating groove, and two conducting strips are mounted at the bottom of the fixing plate and the inner bottom end of the accommodating groove. The two corresponding conducting strips are stacked together, a strip-shaped supporting plate is vertically installed on the top of the fixing plate, a thermistor is installed on one side of the top of the strip-shaped supporting plate, wires are installed at the two wiring ends of the thermistor, and the other ends of the wires are fixed to the corresponding conducting strips. The thermistor can be supported through the strip-shaped supporting plate, and the strip-shaped supporting plate is supported through the protection sleeve, so that the thermistor is kept stable, the thermistor is prevented from being damaged due to vibration or a wire is prevented from being broken, and the protection effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of temperature sensing probes, in particular to a temperature sensing probe for household appliances. Background Art

[0002] The structure of a temperature probe generally consists of three parts: a temperature sensitive element, a conversion element, and a circuit. The temperature sensitive element is responsible for sensing the temperature signal and converting it into an easily measurable quantity that has a certain relationship with the temperature. The conversion element converts the physical quantity output by the temperature sensitive element into an electrical quantity output.

[0003] Existing temperature probes typically enclose a thermistor in a metal sleeve. Heat from the external environment is transferred through the sleeve to the thermistor, and the temperature is detected by changes in the thermistor's resistance. However, because the thermistor is enclosed by the metal sleeve, it cannot be individually inspected or replaced during maintenance, resulting in poor performance. Furthermore, the thermistor can be shaken by external forces during transportation or installation, which can easily break the wires connected to the thermistor and damage the thermistor, resulting in poor protection. Therefore, we propose a temperature probe for household appliances. Utility Model Content

[0004] The purpose of the utility model is to solve the above-mentioned shortcomings in the prior art and to propose a temperature sensing probe for household appliances.

[0005] To achieve the above-mentioned object, the present invention adopts the following technical solution: a temperature sensor probe for household appliances is designed, comprising a mounting base, a receiving groove is formed on the top of the mounting base, a fixing plate is provided inside the receiving groove, two conductive sheets are installed at the bottom of the fixing plate and the bottom end of the receiving groove, and when the fixing plate is located in the receiving groove, the corresponding two conductive sheets are superimposed together;

[0006] A strip support plate is vertically installed on the top of the fixed plate, a thermistor is installed on one side of the top of the strip support plate, and wires are installed on both terminals of the thermistor, and the other end of the wires is fixed on the corresponding conductive sheet;

[0007] A protective cover is provided on one side of the fixing plate. When the bottom of the protective cover is stacked on the fixing plate, the strip support plate and the thermistor are both located inside the protective cover.

[0008] A limiting ring is installed on the edge of one end of the protective sleeve close to the fixing plate, the edge of the limiting ring is flush with the edge of the mounting seat, and a connecting ring is installed on the side edge of the limiting ring. Both ends of the connecting ring extend to the outside of the limiting ring. When the bottom of the protective sleeve is superimposed on the fixing plate, the inner side of the connecting ring extends to the side of the mounting seat;

[0009] Several elastic connecting pieces are installed on the bottom edge of the connecting ring, and a clamping block is installed on one side of the bottom of each elastic connecting piece. Several clamping slots are opened on the bottom edge of the mounting seat. When the limit ring is stacked on the mounting seat, the clamping block extends into the clamping slot.

[0010] Preferably, at least one positioning block is installed on the edge of the fixed plate, and at least one positioning groove is opened on the top of the mounting seat, one end of the positioning groove is connected to the accommodating groove, and when the fixed plate is located in the accommodating groove, the positioning block moves to the corresponding positioning groove.

[0011] Preferably, when the fixing plate is located in the accommodating groove, the top of the fixing plate is flush with the top of the mounting seat, and the top of the positioning block is flush with the top of the positioning groove.

[0012] Preferably, a plurality of reinforcing ribs are installed on a side of the strip-shaped support plate away from the thermistor, and one side of the reinforcing ribs is gap-matched with an inner side wall of the protective sleeve.

[0013] Preferably, the bottom of each card block is configured as an inclined surface.

[0014] Preferably, the strip-shaped support plate is made of heat-conducting insulating plastic.

[0015] Preferably, a cable is installed at the bottom of the mounting seat, and the end of the cable is connected to the corresponding conductive sheet.

[0016] The design scheme proposed by the utility model has the following beneficial effects during application:

[0017] 1. The thermistor can be supported by the strip support plate, and the strip support plate can be supported by the protective cover, so that the thermistor remains stable, avoiding damage to the thermistor due to vibration or breakage of the wire, and improving the protection effect.

[0018] 2. The protective cover can be fixed on the mounting base through the cooperation of the card block and the card slot. When the thermistor needs to be repaired, the staff can open the protective cover, expose the thermistor, and carry out maintenance to improve the use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a structural dispersion diagram of the utility model;

[0020] Figure 2 This is a structural diagram of the fixed plate and the strip support plate of the utility model;

[0021] Figure 3 This is a schematic diagram of the protective cover structure of the utility model;

[0022] Figure 4 It is a side sectional view of the structural part of the utility model.

[0023] In the figure: 1. Cable; 2. Receiving groove; 3. Mounting seat; 4. Positioning block; 5. Fixing plate; 6. Strip support plate; 7. Card slot; 8. Conductive sheet; 9. Positioning slot; 10. Wire; 11. Thermistor; 12. Card block; 13. Elastic connecting piece; 14. Limiting ring; 15. Protective cover; 16. Connecting ring; 17. Reinforcing rib. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0025] Reference Figure 1-Figure 4 A temperature sensor for household appliances includes a mounting base 3, a receiving groove 2 is provided on the top of the mounting base 3, a fixing plate 5 is provided inside the receiving groove 2, a strip support plate 6 is vertically installed on the top of the fixing plate 5, and a thermistor 11 is installed on one side of the top of the strip support plate 6. The thermistor 11 can change its own resistance according to the temperature of the external environment, thereby being able to detect the external environment. The thermistor 11 is installed on the strip support plate 6, and the strip support plate 6 can support the thermistor 11 so that the thermistor 11 can remain stable and will not shake.

[0026] like Figure 1 and Figure 2 As shown, two conductive sheets 8 are installed at the bottom of the fixing plate 5 and the inner bottom end of the accommodating groove 2. When the fixing plate 5 is located in the accommodating groove 2, the corresponding two conductive sheets 8 are stacked together, and the two terminal ends of the thermistor 11 are installed with wires 10. The other end of the wire 10 is fixed on the corresponding conductive sheet 8. A cable 1 is installed at the bottom of the mounting base 3. The end of the cable 1 is connected to the corresponding conductive sheet 8, and the other end of the cable 1 is connected to the thermostat of the household appliance. In actual use, the resistance of the thermistor 11 changed due to temperature changes will control the current flowing through the thermistor 11, and then the current can be transmitted through the cable 1 to the thermostat on the household appliance through the wire 10 and the conductive sheet 8, thereby completing the temperature detection of the household appliance.

[0027] It should be noted that if Figure 1 As shown, at least one positioning block 4 is installed on the edge of the fixing plate 5, and at least one positioning groove 9 is provided on the top of the mounting seat 3. One end of the positioning groove 9 is connected with the accommodating groove 2, and when the fixing plate 5 is located in the accommodating groove 2, the positioning block 4 is moved to the corresponding positioning groove 9. The fixing plate 5 can be positioned by cooperating with the positioning block 4 and the positioning groove 9. In this way, during installation, the conductive sheet 8 at the bottom of the fixing plate 5 will not be misaligned with the conductive sheet 8 in the accommodating groove 2.

[0028] like Figure 1 and Figure 4 As shown, a protective cover 15 is provided on one side of the fixing plate 5. When the bottom of the protective cover 15 is superimposed on the fixing plate 5, the strip support plate 6 and the thermistor 11 are both located in the protective cover 15. The protective cover 15 is made of a metal thermal conductive material. The strip support plate 6 and the thermistor 11 can be covered by the protective cover 15, so that the thermistor 11 is separated from the external environment and protected. In addition, the external temperature can also be transmitted to the inside of the protective cover 15 through the protective cover 15, so that the thermistor 11 can work normally.

[0029] It should be noted that a plurality of reinforcing ribs 17 are installed on the side of the strip support plate 6 away from the thermistor 11, and one side of the reinforcing rib 17 is gap-matched with the inner side wall of the protective cover 15. In actual use, the reinforcing rib 17 can increase the structural strength of the strip support plate 6, and the protective cover 15 can also support the strip support plate 6 through the reinforcing rib 17, thereby enabling the thermistor 11 to remain stable and prevent the thermistor 11 from shaking and causing the wire 10 to break or the thermistor 11 to be damaged.

[0030] like Figure 1 、 Figure 3 and Figure 4 As shown, a limiting ring 14 is installed on the edge of one end of the protective sleeve 15 near the fixed plate 5, and the edge of the limiting ring 14 is flush with the edge of the mounting seat 3. A connecting ring 16 is installed on the side edge of the limiting ring 14, and both ends of the connecting ring 16 extend to the outside of the limiting ring 14. When the bottom of the protective sleeve 15 is superimposed on the fixed plate 5, the inner side of the connecting ring 16 extends to the side of the mounting seat 3. In actual use, when the bottom end of the protective sleeve 15 is placed against the fixed plate 5, the bottom of the connecting ring 16 will move to the side of the mounting seat 3 to limit the protective sleeve 15.

[0031] It should be noted that when the fixing plate 5 is located in the accommodating groove 2, the top of the fixing plate 5 is flush with the top of the mounting seat 3, and the top of the positioning block 4 is flush with the top of the positioning groove 9. In this way, when installing the protective cover 15, the limiting ring 14 will be pressed on the top of the fixing plate 5 and the positioning block 4, pressing the fixing plate 5 into the accommodating groove 2 and the positioning block 4 into the positioning groove 9, making fixation convenient.

[0032] like Figure 1 and Figure 3As shown, a plurality of elastic connecting pieces 13 are installed on the bottom edge of the connecting ring 16, and a clamping block 12 is installed on one side of the bottom of each elastic connecting piece 13, and a plurality of clamping grooves 7 are opened on the bottom edge of the mounting seat 3. When the limiting ring 14 is stacked on the mounting seat 3, the clamping block 12 extends into the clamping groove 7. In actual use, the connecting ring 16 can be fixed on the mounting seat 3 by inserting the clamping block 12 into the corresponding clamping groove 7, so that the protective cover 15 can be connected to the mounting seat 3. At the same time, the fixing plate 5 will be pressed into the accommodating groove 2 by the protective cover 15 and the limiting ring 14 to complete the fixation.

[0033] It should be noted that if Figure 3 As shown, the bottom of each block 12 is set as an inclined surface. During the installation process, the block 12 will contact the edge of the mounting seat 3. Under the action of the inclined surface, the block 12 will push the elastic connecting piece 13 to move outward, causing the elastic connecting piece 13 to deform. When the block 12 moves to the slot 7, the elastic connecting piece 13 restores its deformation, so that one end of the block 12 will be inserted into the slot 7 and will not fall off.

[0034] After the fixing plate 5 is fixed on the fixing plate 6, the fixing plate 5 is fixed on the fixing plate 6, and the fixing plate 5 is fixed on the fixing plate 6. The fixing plate 5 is fixed on the fixing plate 6, and the fixing plate 5 is fixed on the fixing plate 6. The fixing plate 5 is fixed on the fixing plate 6, and the fixing plate 5 is fixed on the fixing plate 6. The fixing plate 5 is fixed on the fixing plate 6, and the fixing plate 5 is fixed on the fixing plate 6.

[0035] Furthermore, the strip support plate 6 is made of heat-conducting insulating plastic, so that the strip support plate 6 does not affect the external temperature transfer and does not cause the thermistor 11 to short-circuit.

[0036] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A temperature sensor probe for household appliances, comprising a mounting base (3), characterized in that: A receiving groove (2) is provided on the top of the mounting seat (3), a fixing plate (5) is provided inside the receiving groove (2), and two conductive sheets (8) are installed at the bottom of the fixing plate (5) and the bottom end of the interior of the receiving groove (2). When the fixing plate (5) is located in the receiving groove (2), the corresponding two conductive sheets (8) are stacked together; A strip support plate (6) is vertically mounted on the top of the fixed plate (5), a thermistor (11) is mounted on one side of the top of the strip support plate (6), and wires (10) are mounted on both ends of the thermistor (11), and the other end of the wire (10) is fixed to the corresponding conductive sheet (8); A protective sleeve (15) is provided on one side of the fixed plate (5); when the bottom of the protective sleeve (15) is stacked on the fixed plate (5), the strip support plate (6) and the thermistor (11) are both located inside the protective sleeve (15); A limiting ring (14) is installed on the edge of one end of the protective sleeve (15) close to the fixed plate (5), the edge of the limiting ring (14) is flush with the edge of the mounting seat (3), and a connecting ring (16) is installed on the side edge of the limiting ring (14), both ends of the connecting ring (16) extend to the outside of the limiting ring (14), and when the bottom of the protective sleeve (15) is superimposed on the fixed plate (5), the inner side of the connecting ring (16) extends to the side of the mounting seat (3); A plurality of elastic connecting pieces (13) are installed on the bottom edge of the connecting ring (16), a clamping block (12) is installed on one side of the bottom of each elastic connecting piece (13), and a plurality of clamping grooves (7) are opened on the bottom edge of the mounting seat (3). When the limiting ring (14) is stacked on the mounting seat (3), the clamping block (12) extends into the clamping groove (7).

2. A temperature sensing probe for household appliances according to claim 1, characterized in that: At least one positioning block (4) is installed on the edge of the fixing plate (5), and at least one positioning groove (9) is opened on the top of the mounting seat (3). One end of the positioning groove (9) is connected to the receiving groove (2), and when the fixing plate (5) is located in the receiving groove (2), the positioning block (4) moves into the corresponding positioning groove (9).

3. The temperature sensor for household appliances according to claim 2, characterized in that: When the fixing plate (5) is located in the accommodating groove (2), the top of the fixing plate (5) is flush with the top of the mounting seat (3), and the top of the positioning block (4) is flush with the top of the positioning groove (9).

4. The temperature sensing probe for household appliances according to claim 1, characterized in that: A plurality of reinforcing ribs (17) are installed on one side of the strip-shaped support plate (6) away from the thermistor (11), and one side of the reinforcing ribs (17) is gap-matched with the inner side wall of the protective sleeve (15).

5. The temperature sensing probe for household appliances according to claim 1, characterized in that: The bottom of each card block (12) is set as an inclined surface.

6. The temperature sensor for household appliances according to claim 1, characterized in that: The strip-shaped support plate (6) is made of heat-conducting insulating plastic.

7. The temperature sensing probe for household appliances according to claim 1, characterized in that: A cable (1) is installed at the bottom of the mounting seat (3), and an end of the cable (1) is connected to a corresponding conductive sheet (8).

Images