Split type clamping structure of NTC and fuse of electric cooker

Abstract

The utility model relates to a split type clamping structure of an NTC (Negative Temperature Coefficient) and a fuse of an electric cooker, which belongs to the technical field of electronic component connection and comprises a shell A and a shell B. A clamping mechanism for quickly clamping the shell A and the shell B is arranged between the shell A and the shell B; the clamping mechanism comprises a clamping part A and a clamping part B which are arranged on the shell A and the shell B respectively and matched with each other, the shell A and the clamping part A are integrally formed, and the shell B and the clamping part B are integrally formed. According to the split type clamping structure of the NTC and the fuse of the electric cooker, the split type clamping structure is adopted, so that a traditional integrated plastic structure does not need to increase extra volume to accommodate a terminal at the end of an electric wire, meanwhile, the assembly process is simplified, potential damage caused by complex assembly is reduced, and the service life of the electric cooker is prolonged. And secondly, unnecessary plastic materials can be reduced by using a split type clamping structure, so that a heat conduction path can be possibly improved, and the response speed and accuracy of the NTC to temperature change are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to electronic component connection technical field, concretely is a kind of split type clamping structure of electric rice cooker NTC and fuse. BACKGROUND

[0002] In electric rice cooker, NTC is a kind of thermistor, its resistance value decreases with temperature rise, with negative temperature coefficient characteristic, it is used to monitor the temperature change of inner bag in real time, when temperature reaches set value (such as rice boiling or heat preservation stage), control system will adjust heating power according to the resistance value of NTC feedback, electric rice cooker fuse refers to when current exceeds specified value, with the heat generated by itself to make fuse melt, disconnect circuit of a kind of protection electrical appliance.

[0003] In traditional design, to adapt to the terminal of wire end, integral plastic structure needs to increase additional volume to accommodate these terminals, which not only increases material cost, but also can affect the compactness of overall design, secondly, larger terminal passes through plastic structure can increase assembly difficulty, and can cause damage risk in assembly process, while the increased plastic volume can affect heat conduction efficiency, in turn affect the response speed and accuracy of NTC to temperature change. SUMMARY

[0004] In view of the defects of prior art, the utility model provides a split type clamping structure of electric rice cooker NTC and fuse, with the advantages of low cost and easy assembly, solves the problem that integral plastic structure needs to increase additional volume to accommodate these terminals, which not only increases material cost, but also can affect the compactness of overall design.

[0005] To achieve the above object, the utility model provides the following technical scheme: a split type clamping structure of electric rice cooker NTC and fuse, including shell A and shell B, the shell A and the shell B between setting up for the quick clamping of two clamping mechanism;

[0006] Among them, the clamping mechanism includes clamping portion A and clamping portion B respectively arranged on shell A and shell B and mutually matched, and shell A and clamping portion A and shell B and clamping portion B are integrally formed between them respectively;

[0007] The clamping portion A includes the connecting block A fixed to the side of shell A, the front of connecting block A is linearly opened with two half ring grooves A on its back side direction, two half ring grooves A are opened with arc-shaped groove A on connecting block A at close place, the side close to shell B of connecting block A is fixed with connecting block B, arc-shaped groove B is opened on the upper and lower sides of connecting block B and close to its right side surface;

[0008] The clamping part B includes a connecting block C fixed to one side of the shell B, a fitting groove is linearly arranged on the front side of the connecting block C and recessed in the arc direction of the upper and lower sides of the fitting groove, and an abutting groove and a half-ring groove B are respectively arranged on the upper and lower sides of the fitting groove.

[0009] Further, a positioning hole is arranged on the right side of the connecting block B, and a positioning column matched with the inner diameter of the positioning hole is fixed to one side of the connecting block C and located in the fitting groove.

[0010] Further, a movable groove for the positioning column is arranged on the right side of the connecting block B and close to the back surface thereof, and the shape of the right side section of the movable groove is a rectangle.

[0011] Further, the shell A and the shell B are coaxially arranged, and the geometric centers of the shell A and the shell B coincide.

[0012] Further, the connecting block C is in an abutting state between the connecting block A and the connecting block B.

[0013] Further, the two half-ring grooves A and the two half-ring grooves B are distributed in a left-right symmetry along the coaxial direction of the shell A and the shell B.

[0014] Further, two reserved grooves are arranged on the front side of the connecting block B and located on the left side of the arc-shaped groove B, the arc-shaped extension on the front side of the reserved groove forms a circular arc A, the arc-shaped extension on the front side of the half-ring groove A and the half-ring groove B forms a circular arc B and a circular arc C, and the lengths of the circular arc B and the circular arc C are equal and greater than the length of the circular arc A.

[0015] Compared with the prior art, the technical scheme has the following beneficial effects:

[0016] The split clamping structure of the electric rice cooker NTC and the fuse simplifies the assembly process and reduces potential damage caused by complex assembly by using the split clamping structure to make the traditional integrated plastic structure not need to increase the additional volume to accommodate the terminal of the wire end, and secondly, the split clamping structure can reduce unnecessary plastic materials, thereby possibly improving the heat conduction path, improving the response speed and accuracy of the NTC to temperature changes, and the design of the split clamping mechanism enables the shell A and the shell B to be combined together through quick clamping, which not only facilitates initial installation, but also provides convenience for subsequent maintenance or replacement. BRIEF DESCRIPTION OF DRAWINGS

[0017] Fig. 1 It is a structural schematic view of the utility model;

[0018] Fig. 2 It is a structural side view of the utility model;

[0019] Fig. 3The utility model discloses a schematic view of the clamping mechanism.

[0020] Fig. 4 It is the partial schematic view of the clamping part A of the utility model.

[0021] Fig. 5 It is the partial structure schematic view of the clamping part B of the utility model.

[0022] In the drawing: 1 shell A, 2 shell B, 3 clamping mechanism, 31 clamping part A, 311 connecting block A, 312 half ring groove A, 313 arc groove A, 314 connecting block B, 315 arc groove B, 32 clamping part B, 321 connecting block C, 322 fitting groove, 323 abutting groove, 324 half ring groove B. DETAILED DESCRIPTION

[0023] The technical scheme in the embodiments of the utility model will be apparently and completely described below with the drawings in the embodiments of the utility model, and apparently, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without making creative labor belong to the range of protection of the utility model.

[0024] Please refer to Figs. 1 to 5 The split type clamping structure of the NTC and the fuse of the electric rice cooker in the embodiment includes shell A1 and shell B2, and the clamping mechanism 3 for the quick clamping of the shell A1 and the shell B2 is arranged between the shell A1 and the shell B2.

[0025] The clamping mechanism 3 includes the clamping part A 31 and the clamping part B 32 arranged on the shell A1 and the shell B2 respectively and matched with each other, and the shell A1 and the clamping part A 31 and the shell B2 and the clamping part B 32 are integrally formed respectively.

[0026] The clamping part A 31 includes the connecting block A 311 fixed to one side of the shell A1, the front surface of the connecting block A 311 is linearly provided with two symmetrical half ring grooves A 312 in the rear side direction, the two half ring grooves A 312 are provided with the arc groove A 313 on the connecting block A 311 at the close position, the connecting block B 314 is fixed to the side close to the shell B2 of the connecting block A 311, and the arc groove B 315 is arranged on the upper and lower sides of the connecting block B 314 and close to the right side surface thereof.

[0027] The clamping part B 32 includes the connecting block C 321 fixed to one side of the shell B2, the front surface of the connecting block C 321 is linearly provided with the fitting groove 322 in the rear side direction, and the abutting groove 323 and the half ring groove B 324 are recessed and arranged on the upper and lower sides of the fitting groove 322 in the arc direction respectively.

[0028] It should be noted that the clamping mechanism 3 is composed of an integral clamping part A31 and a clamping part B32 respectively arranged on the shell A1 and the shell B2, which ensures the stability of the connection and the convenience of assembly. This design not only simplifies the assembly process and reduces the potential damage risk caused by complex assembly, but also improves the stability and reliability of the overall structure through precise fitting, and helps to optimize the heat conduction path, improve the response speed and accuracy of NTC to temperature changes.

[0029] Among them, the right side of the connecting block B314 is provided with a positioning hole, and one side of the connecting block C321 and located in the fitting groove 322 is fixed with a positioning column matched with the inner diameter of the positioning hole.

[0030] It should be noted that this design ensures that the shell A1 and the shell B2 can be accurately positioned during assembly, avoiding assembly difficulties or instability caused by positional deviation.

[0031] Among them, the right side of the connecting block B314 and close to its back is provided with a movable slot for the positioning column, and the right side cross section of the movable slot is rectangular, the shell A1 and the shell B2 are coaxially arranged, and the geometric center of the shell A1 coincides with the geometric center of the shell B2.

[0032] It should be noted that the movable slot facilitates the movement of the positioning column during clamping, allowing it to smoothly enter the positioning hole.

[0033] Among them, the connecting block C321 is in abutting state with the connecting block A311 and the connecting block B314 respectively, and the two half ring grooves A312 and the two half ring grooves B324 are distributed symmetrically along the coaxial direction of the shell A1 and the shell B2.

[0034] It should be noted that the connecting block C321 is in abutting state with the connecting block A311 and the connecting block B314, which ensures a tight and stable connection and reduces the risk of loosening during assembly. In addition, the two half ring grooves A312 and the two half ring grooves B324 are distributed symmetrically along the coaxial direction of the shell A1 and the shell B2, which not only optimizes the symmetry and balance of the structure, but also further enhances the assembly precision and stability, so that the entire assembly can maintain high consistency and reliability during use.

[0035] Among them, the front of the connecting block B314 is provided with two reserved slots located on the left side of the arc-shaped groove B315, the front of the reserved slot shows an arc elongation forming a circular arc A, the front of the half ring groove A312 and the half ring groove B324 shows an arc elongation forming a circular arc B and a circular arc C, and the length of the circular arc B and the circular arc C is equal and greater than the length of the circular arc A.

[0036] It should be noted that the reserved groove facilitates the assembly between the subsequent clamping structure and the equipment, while the non-arc design only ensures the precise alignment and close fit between the components, enhances the stability of the overall structure, provides additional space tolerance for fine tuning during the assembly process, in addition, the consistent and optimized arc design helps to evenly distribute stress, improve durability, and improve the heat conduction path, making the NTC respond more quickly and accurately to temperature changes, thereby improving the functionality and reliability of the entire assembly.

[0037] The working principle of the above embodiment is:

[0038] Before assembly, ensure that the shell A1 and the shell B2 are coaxially arranged, i.e. the geometric centers of the two coincide, and the two wires of the electric rice cooker NTC and the fuse are respectively sleeved in the semi-ring groove A312 and the semi-ring groove B324 in a U-shaped design, and the corners of the U-shaped wire design are made more smooth through the arc-shaped groove A313 and the arc-shaped groove B315, avoiding damage to the wires. Secondly, the connecting block A311 and the connecting block B314 on the shell A1 are aligned with the fitting groove 322 on the shell B2. Since the shape of the connecting block A311 and the connecting block B314 matches the fitting groove 322, they can be correctly docked. During the docking process, the shell A1 and the shell B2 are pushed closer along the axial direction of the shell A1 and the shell B2, so that the connecting block A311 and the connecting block B314 enter the fitting groove 322. At this time, the semi-ring groove A312 on the connecting block A311 should be aligned with the semi-ring groove B324 on the connecting block C321, and form a complete circular structure together, while the positioning column will pass through the movable slot and be inserted into the positioning hole, ensuring that the shell A1 and the shell B2 will not move relative to each other, to complete the split clamping and fixing between the two wires of the electric rice cooker NTC and the fuse.

[0039] It should be noted that in this document, the terms such as first and second are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment. Without more limitations, the element defined by the statement "includes a" does not exclude the presence of another identical element in the process, method, article or equipment including the element.

[0040] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application.

Claims

1. A split-type snap-fit ​​structure for an electric rice cooker's NTC and fuse, comprising a housing A (1) and a housing B (2), characterized in that: A snap-fit ​​mechanism (3) for quick snap-fitting between housing A (1) and housing B (2) is provided; The latching mechanism (3) includes latching part A (31) and latching part B (32) respectively disposed on housing A (1) and housing B (2) and cooperating with each other, and housing A (1) and latching part A (31) and housing B (2) and latching part B (32) are integrally formed; The snap-fit ​​part A (31) includes a connecting block A (311) fixed to one side of the housing A (1). The front of the connecting block A (311) is provided with two symmetrical semi-annular grooves A (312) in a linear shape along its rear side. An arc-shaped groove A (313) is provided on the connecting block A (311) at the close proximity of the two semi-annular grooves A (312). A connecting block B (314) is fixed to the side of the connecting block A (311) near the housing B (2). An arc-shaped groove B (315) is provided on both the upper and lower sides of the connecting block B (314) and near its right side. The snap-fit ​​part B (32) includes a connecting block C (321) fixed to one side of the housing B (2). The front of the connecting block C (321) is provided with a mating groove (322) in a linear shape along its rear side. The upper and lower sides of the mating groove (322) are respectively provided with an abutment groove (323) and a semi-annular groove B (324) along its arc direction.

2. The separate snap-fit ​​structure of the NTC and fuse in a rice cooker according to claim 1, characterized in that: The right side of the connecting block B (314) is provided with a positioning hole, and a positioning post that matches the inner diameter of the positioning hole is fixed on one side of the connecting block C (321) and located in the fitting groove (322).

3. The separate snap-fit ​​structure of the NTC and fuse in a rice cooker according to claim 2, characterized in that: The connecting block B (314) has a movable groove on its right side and near its back side for the positioning column to move, and the right side of the movable groove has a rectangular cross-section.

4. The separate snap-fit ​​structure of the NTC and fuse in a rice cooker according to claim 1, characterized in that: The shell A (1) and the shell B (2) are arranged coaxially, and the geometric center of the shell A (1) coincides with the geometric center of the shell B (2).

5. The separate snap-fit ​​structure of the NTC and fuse in a rice cooker according to claim 1, characterized in that: The connecting block C (321) is in contact with the connecting block A (311) and the connecting block B (314) respectively.

6. The separate snap-fit ​​structure of the NTC and fuse in a rice cooker according to claim 1, characterized in that: The two semi-annular grooves A (312) and B (324) are symmetrically distributed on the left and right sides along the coaxial axis of the shell A (1) and the shell B (2).

7. The separate snap-fit ​​structure of the NTC and fuse in a rice cooker according to claim 1, characterized in that: The front of the connecting block B (314) has two reserved slots located to the left of the arc-shaped groove B (315). The arc-shaped extension of the reserved slots on the front forms an arc A. The arc-shaped extension of the semi-annular groove A (312) and the semi-annular groove B (324) on the front forms an arc B and an arc C, and the lengths of the arcs B and C are equal and greater than the length of the arc A.

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