Temperature sensing probe of quasi-kick temperature controller structure

Abstract

The utility model relates to a temperature sensing probe of a quasi-kick temperature controller structure, which comprises a shell and a sealing cover packaged at the top of the shell, a temperature sensing cavity is formed between the sealing cover and the shell, and two groups of terminal assemblies led out of the shell are arranged at the bottom of the shell; an NTC thermosensitive element is arranged in the temperature sensing cavity, two wires of the NTC thermosensitive element are electrically connected with the two sets of terminal assemblies respectively, and the NTC thermosensitive element abuts against or is attached to the bottom face of the sealing cover. According to the temperature sensing probe, the NTC thermosensitive element is installed by means of the shell structure of the kick temperature controller, the appearance integrity is attractive and unified, the NTC thermosensitive element can be completely isolated in the temperature sensing cavity, the assembly structure is simple, the sealing effect is good, the structures are firmly and stably connected, the NTC thermosensitive element can be better protected, and the anti-interference capacity and the temperature sensing precision of the NTC thermosensitive element are improved.

Description

Technical Field

[0001] The utility model relates to the field of temperature sensing probes, in particular to a temperature sensing probe with a pseudo-snap temperature controller structure. Background Art

[0002] At present, the temperature sensing probe is shown in a telescopic probe device as shown in Chinese patent literature, patent number: CN202223295314.8, which mainly includes a metal shell, and a temperature sensing unit is also arranged in the metal shell. After the temperature sensing unit is placed in the metal shell, silicone or epoxy resin is usually filled into the metal shell to fix and insulate the temperature sensing unit. The temperature sensing unit mainly adopts an NTC thermistor. The temperature sensing unit and the metal shell are combined into a temperature sensing probe. The metal shell is against the heating element, and the temperature sensing unit senses the heat radiated by the metal shell to judge the temperature of the heating element. However, the temperature sensing probe has a simple structure, the assembly effect is not strong enough, the connection between the structures is unstable, and the wires of the temperature sensing unit are prone to loosening or displacement of the NTC thermistor after the wires are pulled. Therefore, the applicant provides a new temperature sensing probe for consumers to choose and use. Summary of the invention

[0003] The utility model aims to provide a temperature sensing probe with a quasi-snap temperature controller structure which has a simple and reasonable structure, is easy to install and has a stable structure.

[0004] A temperature sensing probe with a pseudo-snap temperature controller structure comprises a shell and a cover encapsulated on the top of the shell, a temperature sensing cavity is formed between the cover and the shell, two groups of terminal components leading out of the shell are provided at the bottom of the shell; an NTC thermistor is provided in the temperature sensing cavity, two wires of the NTC thermistor are electrically connected to the two groups of terminal components respectively, and the NTC thermistor is abutted or leaned against the bottom surface of the cover.

[0005] The purpose of the utility model can also be solved by the following technical measures:

[0006] As a more specific solution, an insulating structure is provided between the NTC thermistor and the cover.

[0007] As a further solution, the insulating structure includes a high temperature resistant insulating film, and the insulating film is adhered to the bottom surface of the cover.

[0008] As a further solution, a supporting boss is extended from the bottom surface of the temperature sensing cavity toward the cover direction, and the NTC thermistor is placed transversely on the top surface of the supporting boss.

[0009] As a further solution, a positioning groove adapted to the surface shape of the NTC thermistor is provided on the top surface of the supporting boss, and lead-out grooves adapted to the passage of the wire are provided in front and behind the positioning groove.

[0010] As a further solution, the supporting boss is arranged at the center of the temperature sensing cavity; the supporting boss is in a cylindrical structure or a square column structure.

[0011] As a further solution, two riveted through holes are opened at the bottom of the shell, and the two riveted through holes are placed on opposite sides of the supporting boss; the terminal assembly includes rivets, the two rivets are of the same length and are arranged in the riveted through holes, wherein the top end of the rivet is electrically connected to the wire of the NTC thermistor, and the bottom end of the rivet extends out of the shell.

[0012] As a further solution, the terminal assembly also includes a terminal piece, one end of which is electrically connected to the bottom end of the rivet, and the terminal piece is extended in a horizontal direction, or the terminal piece is bent in the middle and extended downward.

[0013] As a further solution, two connecting plates are arranged on opposite sides of the cover edge of the cover, and each connecting plate is provided with a long strip-shaped connecting hole.

[0014] As a further solution, a positioning bottom groove is provided on the bottom surface of the shell corresponding to the riveted through hole, and one end of the terminal piece is confined in the positioning bottom groove.

[0015] The beneficial effects of the utility model are as follows:

[0016] The utility model discloses a temperature sensing probe with a quasi-sudden jump thermostat structure. This temperature sensing probe uses the shell structure of the sudden jump thermostat to install the NTC thermistor. The overall appearance is beautiful and unified, so that the NTC thermistor can be completely isolated in the temperature sensing cavity. The assembly structure is simple, the sealing effect is good, and the connection between the structures is firm and stable, which can better protect the NTC thermistor and improve the anti-interference ability and temperature sensing accuracy of the NTC thermistor. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of a cross-sectional structure of an embodiment of the utility model. Figure 1 .

[0018] Figure 2 This is a schematic diagram of a cross-sectional structure of an embodiment of the utility model. Figure 2 .

[0019] Figure 3 It is a schematic diagram of the separation structure of the NTC thermistor and the supporting boss in the utility model.

[0020] Figure 4 This is a schematic diagram of the exploded structure of the temperature sensing probe in the utility model.

[0021] Figure 5 This is a schematic diagram of the exploded structure of the temperature sensing probe in the utility model from another angle. DETAILED DESCRIPTION

[0022] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0023] like Figures 1 to 5 As shown, a temperature sensing probe of a pseudo-snap thermostat structure includes a shell 1 and a cover 2 encapsulated on the top of the shell 1, a temperature sensing cavity 101 is formed between the cover 2 and the shell 1, and two groups of terminal components 3 leading to the outside of the shell 1 are provided at the bottom of the shell 1; an NTC thermistor 4 is provided in the temperature sensing cavity 101, and two wires 401 of the NTC thermistor 4 are electrically connected to the two groups of terminal components 3 respectively, and the NTC thermistor 4 is abutted or leaned against the bottom surface of the cover 2.

[0024] This temperature sensing probe uses the shell structure of the sudden jump thermostat to install the NTC thermistor 4. The overall appearance is beautiful and unified, so that the NTC thermistor 4 can be completely isolated in the temperature sensing cavity. The assembly structure is simple, the sealing effect is good, and the connection between the structures is firm and stable, which can better protect the NTC thermistor 4 and improve the anti-interference ability and temperature sensing accuracy of the NTC thermistor 4.

[0025] An insulating structure is provided between the NTC thermistor 4 and the cover 2 ; the insulating structure can prevent electricity from being passed between the cover 2 and the NTC thermistor 4 , thereby improving the safety performance of the temperature sensing probe.

[0026] In this embodiment, the insulating structure includes a high temperature resistant insulating film 5, which may be a plastic film or a silicone film, etc. The insulating film 5 is adhered to the bottom surface of the cover 2; the insulating film 5 is adhered to the bottom surface of the cover 2, and after the cover 2 is assembled in place, the isolation between the cover and the NTC thermistor 4 is completed.

[0027] The bottom surface of the temperature sensing cavity 101 is provided with a supporting boss 6 extending toward the cover 2 , and the NTC thermistor 4 is horizontally placed on the top surface of the supporting boss 6 ; the supporting boss 6 raises the position of the NTC thermistor 4 so that the NTC thermistor 4 can be against or lean against the bottom surface of the cover 2 .

[0028] The top surface of the supporting boss 6 is provided with a positioning groove 601 adapted to the surface shape of the NTC thermistor 4, and lead-out grooves 602 adapted to the wire 401 passing through are provided in front and behind the positioning groove 601; the positioning groove 601 can position the NTC thermistor 4, improve the assembly efficiency, and prevent the NTC thermistor 4 from shifting, and the two wires 401 in front and behind the NTC thermistor 4 cooperate with the lead-out groove 602, and at the same time can prevent the NTC thermistor 4 from swinging in the horizontal plane.

[0029] The support boss 6 is arranged at the center of the temperature sensing chamber 101 so that the NTC thermistor can be centered to ensure the sensing accuracy of the NTC thermistor. In this embodiment, the support boss 6 is a square columnar structure. Of course, in more embodiments, the support boss 6 can also be a cylindrical structure or other shapes.

[0030] Two riveted through holes 102 are provided at the bottom of the housing 1, and the two riveted through holes 102 are placed on opposite sides of the supporting boss 6; the terminal assembly 3 includes rivets 31, and the two rivets 31 have the same length and are arranged in the riveted through holes 102, wherein the top of the rivet 31 is electrically connected to the wire 401 of the NTC thermistor 4, and the bottom of the rivet 31 extends out of the housing 1; the two rivets 31 of the same length and the same installation position help to ensure the connection effect and stability of the wire 401.

[0031] The terminal assembly 3 also includes a terminal piece 32, one end of which is electrically connected to the bottom end of the rivet 31. In this embodiment, the terminal piece 32 is bent in the middle and extended downward; in more embodiments, the terminal piece 32 can also be extended in the horizontal direction and adaptively adjusted according to different installation positions of the temperature sensor.

[0032] Two connecting plates 21 are arranged on the opposite sides of the cover edge of the cover 2, and each connecting plate 21 is provided with a long connecting hole 22; the temperature sensing probe can be fastened to the bottom of the heating element through the connecting plates 21 and the connecting holes 22, and the long connecting holes 22 can be used to fine-tune the tight position of the temperature sensing probe to the left and right during pre-tightening, so as to adjust it to the most suitable position.

[0033] A positioning bottom groove 103 is provided on the bottom surface of the shell 1 corresponding to the riveted through hole 102, and one end of the terminal piece 32 is limited in the positioning bottom groove 103; the terminal piece 32 can be positioned to prevent the terminal piece 32 from rotating along the rivet 31 as the central axis, which may cause the wire 401 to be twisted off.

[0034] The above is a preferred embodiment of the utility model, which shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. The utility model may have various changes and improvements without departing from the spirit and scope of the utility model, and these changes and improvements fall within the scope of the utility model to be protected, and the scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A temperature sensing probe with a pseudo-snap thermostat structure, characterized in that : comprising a shell (1) and a cover (2) encapsulated on the top of the shell (1), a temperature sensing cavity (101) being formed between the cover (2) and the shell (1), and two groups of terminal assemblies (3) being led out of the shell (1) being provided at the bottom of the shell (1); an NTC thermistor (4) being provided in the temperature sensing cavity (101), two wires (401) of the NTC thermistor (4) being electrically connected to the two groups of terminal assemblies (3) respectively, and the NTC thermistor (4) being abutted against or pressed against the bottom surface of the cover (2).

2. The temperature sensing probe of the quasi-snap thermostat structure according to claim 1 is characterized in that An insulating structure is provided between the NTC thermistor (4) and the cover (2).

3. The temperature sensing probe of the quasi-snap thermostat structure according to claim 2 is characterized in that The insulating structure comprises a high temperature resistant insulating film (5), wherein the insulating film (5) is adhered to the bottom surface of the cover (2).

4. The temperature sensing probe of the quasi-snap thermostat structure according to claim 1 is characterized in that A supporting boss (6) is extended from the bottom surface of the temperature sensing chamber (101) in the direction of the cover (2), and the NTC thermistor (4) is placed transversely on the top surface of the supporting boss (6).

5. The temperature sensing probe of the quasi-snap thermostat structure according to claim 4 is characterized in that The top surface of the supporting boss (6) is provided with a positioning groove (601) adapted to the surface shape of the NTC thermistor (4), and lead-out grooves (602) adapted to allow the wire (401) to pass through are provided in front and behind the positioning groove (601).

6. The temperature sensing probe of the quasi-snap thermostat structure according to claim 4, characterized in that The supporting boss (6) is arranged at the center of the temperature sensing chamber (101); the supporting boss (6) is in the shape of a cylinder or a square column.

7. A temperature sensing probe with a pseudo-snap thermostat structure according to claim 4 or 6, characterized in that The housing (1) has two riveting through holes (102) at the bottom, the two riveting through holes (102) being located on opposite sides of the supporting boss (6); the terminal assembly (3) comprises a rivet (31), the two rivets (31) having the same length and being arranged in the riveting through holes (102), wherein the top end of the rivet (31) is electrically connected to the wire (401) of the NTC thermistor (4), and the bottom end of the rivet (31) protrudes out of the housing (1).

8. The temperature sensing probe of the quasi-snap thermostat structure according to claim 7, characterized in that The terminal assembly (3) further comprises a terminal piece (32), one end of the terminal piece (32) being electrically connected to the bottom end of the rivet (31), and the terminal piece (32) being extended in a horizontal direction, or the terminal piece (32) being bent in the middle and extending downward.

9. The temperature sensing probe of the quasi-snap thermostat structure according to claim 1, characterized in that Two connecting plates (21) are arranged on opposite sides of the cover edge of the cover (2), and each connecting plate (21) is provided with a long strip-shaped connecting hole (22).

10. The temperature sensing probe of the quasi-snap thermostat structure according to claim 8, characterized in that A positioning bottom groove (103) is provided on the bottom surface of the housing (1) corresponding to the riveted through hole (102), and one end of the terminal piece (32) is confined within the positioning bottom groove (103).

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