Contact assembly for temperature controller

Abstract

The utility model relates to a contact assembly for a temperature controller. The technical problem to be solved by the utility model is to provide the contact assembly for the temperature controller. According to the technical scheme, the static contact comprises a static contact plate, a static contact, a lower copper sleeve and an upper copper sleeve, the static contact plate comprises a static contact plate wiring portion and a wiring board butt joint portion, the static contact plate wiring portion is provided with a static contact plate wiring hole, the wiring board butt joint portion is provided with a wiring board riveting hole, the lower copper sleeve is provided with a lower copper sleeve butt joint hole, and the upper copper sleeve is provided with a wiring board riveting hole. The upper copper sleeve comprises a lower copper sleeve bearing part and a lower copper sleeve butt joint part, and the upper copper sleeve is provided with an upper copper sleeve butt joint hole which comprises an upper copper sleeve bearing part and an upper copper sleeve butt joint part. Compared with the prior art, the double-rivet structure has the advantages that the static contact is riveted on the upper copper sleeve, and the upper copper sleeve is riveted on the lower copper sleeve, so that the static contact is fixed on the static contact plate, the static contact can be reused only by replacing the static contact, the upper copper sleeve and the lower copper sleeve, the static contact plate does not need to be scrapped, the maintenance cost is greatly saved, and excessive waste is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of contacts, in particular to a contact assembly for a temperature controller. Background Art

[0002] Thermostat is a device that can automatically control temperature, which includes thermostat housing, sensor, circuit board, static contact assembly, moving contact assembly, wiring terminal, heater and cooler, etc. Thermostat upper shell, such as Figure 7 and 8 As shown, an upper shell docking cavity 41 for installing a static touch plate is provided at intervals, a static touch plate insertion groove 42 is provided in the upper shell docking cavity, and a insertion groove limiter 44 and a shell threaded hole 43 for connecting a terminal are provided on the static touch plate insertion groove 42. It is found in the after-sales link that most of the problems of the existing static contact assembly for temperature controllers are caused by the static contact being worn out due to long-term contact with the moving contact, and the static contact and the static touch plate riveted at the damage due to the influence of the arc during contact. Since the static contact and the static touch plate are riveted together, the entire static contact and the static touch plate need to be replaced after damage, resulting in high replacement costs and waste of the static touch plate. Improvements and optimizations are made for this. Utility Model Content

[0003] In order to solve the above problems, the technical problem to be solved by the utility model is to provide a contact assembly for a temperature controller.

[0004] The technical solution adopted by the contact assembly for the thermostat of the utility model is: The invention comprises a stationary contact plate and a stationary contact point, characterized in that it also comprises a lower copper sleeve and an upper copper sleeve, the stationary contact plate comprises a stationary contact plate wiring part installed on the stationary contact plate insertion groove and a terminal board docking part extending horizontally, the stationary contact plate wiring part is provided with a stationary contact plate wiring hole communicating with the threaded hole of the shell, the terminal board docking part is provided with a terminal board riveting hole, the lower copper sleeve is provided with a lower copper sleeve docking hole, which comprises a lower copper sleeve receiving part and a lower copper sleeve docking part, the upper copper sleeve is provided with an upper copper sleeve docking hole, which comprises an upper copper sleeve receiving part and an upper copper sleeve docking part, the diameter of the upper copper sleeve docking hole is smaller than the diameter of the lower copper sleeve docking hole, the lower copper sleeve docking part is placed in the terminal board riveting hole, the upper copper sleeve docking part is docked with the lower copper sleeve docking part and the upper copper sleeve docking part is riveted in the lower copper sleeve docking hole, the upper surface of the terminal board docking part is provided with a terminal board positioning groove for positioning the upper copper sleeve receiving part, and the lower surface of the terminal board docking part is provided with a terminal board lower positioning groove for positioning the lower copper sleeve receiving part;

[0005] The static contact comprises a static contact contact portion and a static contact riveted column, wherein the static contact riveted column is riveted in the upper copper sleeve docking hole, and the inner wall of the upper copper sleeve docking hole is provided with reinforced upper teeth arranged at intervals.

[0006] The lower positioning groove of the wiring board is provided with a wiring board limiting protrusion which is arranged oppositely, and the lower copper sleeve receiving portion is provided with a lower copper sleeve limiting recess which corresponds to the wiring board limiting protrusion.

[0007] The upper surface of the upper copper sleeve receiving part is lower than the upper surface of the connecting part of the wiring board, and the bottom surface of the upper copper sleeve receiving part is in contact with the upper surface of the connecting part of the wiring board.

[0008] The inner wall of the lower copper sleeve docking hole is provided with reinforced lower teeth arranged at intervals, and the tooth height of the reinforced upper teeth and the tooth height of the reinforced lower teeth are both less than 0.3mm.

[0009] The front end of the stationary touch plate wiring part is provided with a wiring part arc protrusion for clamping, and the rear end of the stationary touch plate wiring part is provided with a stationary touch plate anti-retraction foot corresponding to the insertion groove limit opening.

[0010] Anti-skid patterns are arranged at intervals on the upper surface of the stationary touch plate wiring portion near the stationary touch plate wiring hole.

[0011] The advantages of the contact assembly for the temperature controller of the utility model are: double riveted structure, the static contact is riveted to the upper copper sleeve, and the upper copper sleeve is riveted to the lower copper sleeve so that the static contact is fixed on the static contact plate. When the static contact is worn or the riveted part of the static contact is damaged, only the static contact, the upper copper sleeve and the lower copper sleeve need to be replaced for reuse, and the static contact plate does not need to be scrapped, which greatly saves maintenance costs and avoids excessive waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0013] Figure 1 It is an exploded view of the contact assembly for the thermostat of the utility model;

[0014] Figure 2 It is a front structural schematic diagram of the static touch plate of the utility model;

[0015] Figure 3 It is a rear view of the static touch plate of the utility model;

[0016] Figure 4 It is a structural schematic diagram of the lower copper sleeve of the utility model;

[0017] Figure 5 It is a structural schematic diagram of the upper copper sleeve of the utility model;

[0018] Figure 6 It is a structural schematic diagram of the static contact of the utility model;

[0019] Figure 7 It is a structural schematic diagram of the upper shell of the thermostat of the utility model;

[0020] Figure 8yes Figure 7 Magnified image of . DETAILED DESCRIPTION

[0021] like Figure 1-6 As shown, the contact assembly for a temperature controller involved in the utility model includes a static touch plate 1 and a static contact 2, a lower copper sleeve 3 and an upper copper sleeve 4, wherein the static touch plate 1 includes a static touch plate wiring portion 6 installed on the static touch plate insertion groove 42 and a wiring board docking portion 7 extending horizontally, wherein the static touch plate wiring portion 6 is provided with a static touch plate wiring hole 8 communicating with the housing threaded hole 43, and the wiring board docking portion 7 is provided with a wiring board riveting hole 9, and the lower copper sleeve 3 is provided with a lower copper sleeve docking hole 10, which includes a lower The upper copper sleeve 4 is provided with an upper copper sleeve docking hole 14, which includes an upper copper sleeve receiving portion 15 and an upper copper sleeve docking portion 16. The diameter of the upper copper sleeve docking hole 14 is smaller than the diameter of the lower copper sleeve docking hole 10. The lower copper sleeve docking portion 12 is placed in the wiring board riveting hole 9. The upper copper sleeve docking portion 16 is docked with the lower copper sleeve docking portion 12 and the upper copper sleeve docking portion 16 is riveted in the lower copper sleeve docking hole 10. The upper surface of the terminal board docking portion 7 is provided with a terminal board positioning groove 18 for positioning the upper copper sleeve receiving portion 15, and the lower surface of the terminal board docking portion 7 is provided with a terminal board lower positioning groove 19 for positioning the lower copper sleeve receiving portion 11; the static contact 2 includes a static contact contact portion 20 and a static contact riveting column 21, the static contact riveting column 21 is riveted in the upper copper sleeve docking hole 14, and the inner wall of the upper copper sleeve docking hole 14 is provided with reinforced upper teeth 22 arranged at intervals, double Riveted structure, the static contact 2 is riveted to the upper copper sleeve 4, and the upper copper sleeve 4 is riveted to the lower copper sleeve 3, so that the static contact 2 is fixed on the static contact plate 1. When the static contact 2 is worn or the riveted part of the static contact 2 is damaged, only the static contact 2, the upper copper sleeve 4 and the lower copper sleeve 3 need to be replaced for reuse. The static contact plate 1 does not need to be scrapped, which greatly saves maintenance costs and avoids excessive waste. Strengthening the upper teeth 22 can strengthen the riveting strength between the static contact 2 and the upper copper sleeve 4, and further prevent the static contact 2 from falling off when it is actuated.

[0022] The lower positioning groove 19 of the terminal block is provided with a terminal block limiting protrusion 24 which is arranged opposite to the terminal block, and the lower copper sleeve receiving portion 11 is provided with a lower copper sleeve limiting recess 25 which corresponds to the terminal block limiting protrusion 24. The upper copper sleeve 4 and the lower copper sleeve 3 are riveted together and the terminal block limiting protrusion 24 can prevent the overall rotation, so that the connection is tighter and more reliable.

[0023] The upper surface of the upper copper sleeve receiving portion 15 is lower than the upper surface of the terminal block docking portion 7 , and the bottom surface of the upper copper sleeve receiving portion 15 is in contact with the upper surface of the terminal block docking portion 7 .

[0024] The inner wall of the lower copper sleeve docking hole 10 is provided with reinforced lower teeth 26 arranged at intervals. The upper copper sleeve 4 and the lower copper sleeve 3 are easier to process than the static contact 2. The tooth height of the reinforced upper teeth 22 and the tooth height of the reinforced lower teeth 26 are both less than 0.3 mm. If the size is too large, it will easily cause difficulty in riveting.

[0025] The front end of the stationary touch plate wiring part 6 is provided with a wiring part arc protrusion 28 for clamping, and the rear end of the stationary touch plate wiring part 6 is provided with a stationary touch plate anti-retraction foot 29 corresponding to the insertion groove limit opening 44, so that the installation is reliable and the positioning is accurate.

[0026] Anti-skid patterns 30 are provided at intervals on the upper surface of the stationary touch plate wiring portion 6 near the stationary touch plate wiring hole 8, so that the connection is more secure during wiring.

[0027] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention are included in the protection scope of the present invention.

Claims

1. A contact assembly for a temperature controller, comprising a stationary contact plate (1) and a stationary contact (2), characterized in that: The invention also comprises a lower copper sleeve (3) and an upper copper sleeve (4), wherein the stationary touch plate (1) comprises a stationary touch plate wiring portion (6) mounted on the stationary touch plate insertion groove (42) and a wiring board docking portion (7) extending horizontally, wherein the stationary touch plate wiring portion (6) is provided with a stationary touch plate wiring hole (8) communicating with the housing threaded hole (43), and the wiring board docking portion (7) is provided with a wiring board riveting hole (9), the lower copper sleeve (3) is provided with a lower copper sleeve docking hole (10) comprising a lower copper sleeve receiving portion (11) and a lower copper sleeve docking portion (12), and the upper copper sleeve (4) is provided with an upper copper sleeve docking hole (14) comprising an upper copper sleeve receiving portion (15) and an upper copper sleeve docking portion (16). a connecting portion (16), the diameter of the upper copper sleeve docking hole (14) being smaller than the diameter of the lower copper sleeve docking hole (10), the lower copper sleeve docking portion (12) being disposed in the wiring board riveting hole (9), the upper copper sleeve docking portion (16) being docked with the lower copper sleeve docking portion (12) and the upper copper sleeve docking portion (16) being riveted in the lower copper sleeve docking hole (10), the wiring board docking portion (7) having an upper surface provided with a wiring board positioning groove (18) for positioning the upper copper sleeve receiving portion (15), and the wiring board docking portion (7) having a lower surface provided with a wiring board lower positioning groove (19) for positioning the lower copper sleeve receiving portion (11); The static contact (2) comprises a static contact contact portion (20) and a static contact riveted column (21), wherein the static contact riveted column (21) is riveted into the upper copper sleeve docking hole (14), and the inner wall of the upper copper sleeve docking hole (14) is provided with reinforced upper teeth (22) arranged at intervals.

2. The contact assembly for a thermostat according to claim 1, characterized in that: The lower positioning groove (19) of the wiring board is provided with a wiring board limiting protrusion (24) arranged opposite to the wiring board, and the lower copper sleeve receiving portion (11) is provided with a lower copper sleeve limiting recess (25) corresponding to the wiring board limiting protrusion (24).

3. The contact assembly for a thermostat according to claim 1, characterized in that: The upper surface of the upper copper sleeve receiving portion (15) is lower than the upper surface of the wiring board docking portion (7), and the bottom surface of the upper copper sleeve receiving portion (15) is in contact with the upper surface of the wiring board docking portion (7).

4. The contact assembly for a thermostat according to claim 1, characterized in that: The inner wall of the lower copper sleeve docking hole (10) is provided with reinforced lower teeth (26) arranged at intervals, and the tooth height of the reinforced upper teeth (22) and the tooth height of the reinforced lower teeth (26) are both less than 0.3 mm.

5. The contact assembly for a thermostat according to claim 1, characterized in that: The front end of the stationary touch plate wiring portion (6) is provided with a wiring portion arc protrusion (28) for clamping, and the rear end of the stationary touch plate wiring portion (6) is provided with a stationary touch plate anti-retraction foot (29) corresponding to the insertion groove limit opening (44).

6. The contact assembly for a thermostat according to claim 1, characterized in that: Anti-slip patterns (30) are provided at intervals on the upper surface of the stationary touch plate wiring portion (6) near the stationary touch plate wiring hole (8).

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