Knob and temperature controller assembly

Abstract

The utility model relates to the technical field of mechanical knobs, in particular to a knob and a temperature controller assembly. The knob comprises a knob body, a light-transmitting cover, a light guide cover and a lamp assembly, and the knob body is rotationally arranged on the mounting plate; the light-transmitting cover is located on the inner side of the knob body and connected with the mounting plate, the light-transmitting cover is provided with an annular mounting cavity, and a refraction part is arranged in the mounting cavity; the light guide cover is arranged at the upper part of the knob body and is connected with the knob body; an annular light emitting part is formed on the outer edge of the light guide cover; the lamp assembly comprises an annular lamp panel and indicator lamps, the annular lamp panel is fixed in the mounting cavity, the indicator lamps are arranged on the lamp panel and distributed in the circumferential direction of the annular lamp panel at intervals, and light emitted by the indicator lamps is refracted to the light emitting part through the refraction part. According to the utility model, the refraction part is arranged on the light-transmitting cover, so that the emergent light of the light emergent part is more uniform; in addition, the lamp assembly is fixedly installed in the installation cavity of the light-transmitting cover, the lamp assembly does not rotate along with the rotation of the knob body, and therefore the problem of lamp wire abrasion is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical knobs, in particular to a knob and a temperature controller assembly. Background Art

[0002] At present, water heaters are household appliances commonly used in people's daily lives. Water heaters are divided into electric water heaters, gas water heaters, heat pump water heaters and solar water heaters. Electric water heaters are widely used because of their convenience. Most electric water heaters are equipped with thermostats to control the temperature of hot water. Mechanical thermostats generally achieve constant temperature control by adjusting the knob that cooperates with the thermostat. In order to facilitate user use, there are generally indicator lights on the knobs. However, the disadvantages of the indicator lights of the knobs that cooperate with the thermostats in the prior art are uneven light emission and poor display effects, which reduce the user experience; and when some knobs are turned, the light cord of the indicator light will turn with the knob, causing the light cord to wear and posing a safety hazard. Utility Model Content

[0003] The utility model aims to provide a knob and a temperature controller assembly, which has more uniform light emission and higher safety in use.

[0004] To achieve this purpose, the utility model adopts the following technical solutions:

[0005] A knob is mounted on a mounting plate, and the knob structure comprises:

[0006] A knob body, rotatably disposed on the mounting plate;

[0007] A light-transmitting cover is located inside the knob body and connected to the mounting plate, wherein the light-transmitting cover has an annular mounting cavity, and a refractive portion is provided inside the mounting cavity;

[0008] A light guide cover is disposed on the upper part of the knob body and connected to the knob body, and the outer edge of the light guide cover forms a ring-shaped light emitting portion;

[0009] The lamp assembly includes an annular light plate and an indicator light. The annular light plate is fixed in the mounting cavity. A plurality of indicator lights are arranged on the annular light plate and are distributed at intervals along the circumference of the annular light plate. The light emitted by the indicator lights is refracted to the light emitting portion through the refraction portion.

[0010] As a preferred technical solution of the knob, the light emitting portion is supported on the upper end of the knob body, and the lower end surface of the light emitting portion is provided with an annular groove extending along the contour of the light emitting portion.

[0011] As an optimal technical solution for the knob, the knob body includes an outer ring portion, an inner ring portion and a connecting portion, the inner ring portion is located on the inner side of the outer ring portion, the upper end of the outer ring portion is connected to the upper end of the inner ring portion through the connecting portion, the outer ring portion is rotatably matched with the mounting plate, the inner ring portion is connected to the light guide cover, and the light output portion is supported on the connecting portion.

[0012] As a preferred technical solution for the knob, an annular groove is provided on the mounting plate, and the outer ring portion is rotatably disposed in the annular groove.

[0013] As an optimal technical solution for the knob, the light guide cover includes a cover body and a connecting part, the cover body is arranged on the upper end of the knob body, and the outer edge of the cover body forms the light output part; the connecting part is arranged at the lower end of the cover body, the connecting part is located on the inner side of the knob body, and the connecting part is used to connect with the knob body.

[0014] As a preferred technical solution for the knob, the installation cavity has a lower opening, the annular light panel is installed in the installation cavity through the lower opening, and a limiting structure is provided in the installation cavity to limit and fix the position of the annular light panel in the installation cavity.

[0015] As a preferred technical solution of the knob, it also includes a shading plate, which is arranged at the upper end of the light guide cover, and covers the other parts of the upper end of the light guide cover except the light emitting part.

[0016] As a preferred technical solution of the knob, a receiving groove is provided at the upper end of the light guide cover, and the light shield is arranged in the receiving groove.

[0017] As a preferred technical solution of the knob, the knob body and the light guide cover, the light-transmitting cover and the mounting plate, and the light-shielding plate and the light guide cover are all connected by snap-fitting.

[0018] A thermostat assembly comprises a thermostat body, a mounting plate and a knob as described in any of the above schemes, wherein the thermostat body and the knob are respectively arranged on both sides of the mounting plate, and a rotatable control rod is arranged on the thermostat body, and the control rod is connected to the knob.

[0019] Beneficial effects of the utility model:

[0020] The utility model provides a knob, which provides a refraction part on the light-transmitting cover so that the light emitted by the indicator light is refracted to the light-emitting part through the refraction part, thereby making the light emission of the light-emitting part more uniform, enhancing the display effect of the light-emitting part, and avoiding the appearance of light spots on the light-emitting part; in addition, by fixing the lamp assembly in the installation cavity of the light-transmitting cover, the lamp assembly will not rotate when the knob body is rotated, thereby avoiding the problem of the lamp wire being worn out due to the movement of the lamp assembly with the knob body, and improving the safety of the knob when in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of a knob and a mounting plate provided in an embodiment of the utility model;

[0022] Figure 2 is a cross-sectional view of a knob and a mounting plate provided in an embodiment of the utility model;

[0023] Figure 3 It is a structural schematic diagram of the knob body involved in the embodiment of the utility model from a first viewing angle;

[0024] Figure 4 is a structural schematic diagram of the knob body involved in the embodiment of the utility model from a second viewing angle;

[0025] Figure 5 It is a structural schematic diagram of the light guide cover involved in the embodiment of the utility model from a first viewing angle;

[0026] Figure 6 It is a structural schematic diagram of a light guide cover involved in an embodiment of the utility model from a second viewing angle;

[0027] Figure 7 This is a schematic structural diagram of the light-transmitting cover in the first viewing angle in the embodiment of the utility model;

[0028] Figure 8 It is a structural schematic diagram of a second viewing angle of the light-transmitting cover involved in the embodiment of the utility model;

[0029] Fig. 9 It is a schematic diagram of the assembly of the light-transmitting cover and the lamp assembly involved in the embodiment of the utility model;

[0030] Fig.10 It is a structural schematic diagram of the sunshade involved in the embodiment of the utility model.

[0031] In the figure:

[0032] 10. Knob; 11. Knob body; 111. Outer ring; 112. Inner ring; 113. Connecting part; 114. Clamping protrusion; 12. Light guide cover; 121. Cover; 1211. Light outlet; 1211a. Annular groove; 1212. Accommodating groove; 1213. Second clamping hole; 1214. Light guide hole; 122. Connecting part; 1221. Clamping groove; 123. Combining part; 13. Translucent cover; 131. Center hole; 132. Mounting cavity; 133. Upper limit protrusion; 134. Lower limit protrusion; 135. Notch; 136. First clamping foot; 137. Refraction part; 14. Lamp assembly; 141. Annular lamp panel; 142. Indicator light; 15. Shading plate; 151. Second clamping foot; 152. Guide column;

[0033] 100. Mounting plate; 101. Annular slide groove; 102. Mounting groove. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0035] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0037] In the description of the present utility model, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the utility model product is usually placed when in use. They are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0038] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0040] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0041] like Figure 1 As shown, the embodiment of the utility model provides a thermostat assembly, including a thermostat body (not shown in the figure), a knob 10 and a mounting plate 100, the thermostat body and the knob 10 are respectively arranged on both sides of the mounting plate 100, and a rotatable control rod is arranged on the thermostat body, and the control rod is connected to the knob 10. The control rod is driven to rotate by rotating the knob 10, so as to control the thermostat body.

[0042] like Figures 2 to 10 As shown, in this embodiment, the knob 10 includes a knob body 11, a light-transmitting cover 13, a light-guiding cover 12 and a lamp assembly 14. The knob body 11 is disposed on the upper end of the mounting plate 100 and is rotatably matched with the mounting plate 100; the light-transmitting cover 13 is disposed on the upper end of the mounting plate 100 and is connected to the mounting plate 100. The light-transmitting cover 13 is located on the inner side of the knob body 11. The light-transmitting cover 13 has a central hole 131 and a mounting cavity 132 distributed around the central hole 131. The mounting cavity 132 has a refractive portion 137. The light-guiding cover 12 is disposed on the upper part of the knob body 11 and is rotatably matched with the mounting plate 100. The light guide cover 12 is connected to the button body 11, and a coupling portion 123 is provided on the light guide cover 12. The coupling portion 123 passes through the central hole 131 of the light-transmitting cover 13 and then couples with the control rod on the thermostat body. The outer edge of the light guide cover 12 forms an annular light-emitting portion 1211; the lamp assembly 14 includes an annular light plate 141 and a plurality of indicator lights 142. The annular light plate 141 is fixed in the installation cavity 132. The plurality of indicator lights 142 are arranged on the annular light plate 141 and are distributed at intervals along the circumference of the annular light plate 141. The light emitted by the indicator lights 142 is refracted to the light-emitting portion 1211 through the refraction portion 137. In this embodiment, the connection position between the top wall of the installation cavity 132 and the inner annular wall forms the refraction portion 137 of the light-transmitting cover 13. The light emitted by the indicator lights 142 can first be irradiated to the refraction portion 137, and then refracted to the light-emitting portion 1211 of the light guide cover 12 by the refraction portion 137. Figure 2 Indicated by the arrow.

[0043] By arranging the refraction portion 137 on the light-transmitting cover 13, the light emitted by the indicator light 142 is refracted to the light-emitting portion 1211 through the refraction portion 137, so that the light output of the light-emitting portion 1211 is more uniform, and the display effect of the light-emitting portion 1211 is enhanced, thereby avoiding the appearance of light spots on the light-emitting portion 1211; in addition, by fixing the lamp assembly 14 in the mounting cavity 132 of the light-transmitting cover 13, the lamp assembly 14 will not rotate when the knob body 11 rotates, thereby avoiding the problem of lamp wire wear caused by the lamp assembly 14 moving with the knob body 11, thereby improving the safety of the knob 10 when in use.

[0044] The light emitting portion 1211 of the light guide cover 12 is supported on the upper end of the knob body 11, and the lower end surface of the light emitting portion 1211 is provided with an annular groove 1211a extending along the contour of the light emitting portion 1211. By providing the annular groove 1211a, the uniformity of the light emitting portion 1211 can be further improved, and the display effect of the light emitting portion 1211 can be further enhanced.

[0045] Reference Figures 2 to 4The knob body 11 includes an outer ring portion 111, an inner ring portion 112 and a connecting portion 122. The inner ring portion 112 is located inside the outer ring portion 111. The upper end of the outer ring portion 111 is connected to the upper end of the inner ring portion 112 through the connecting portion 122. The outer ring portion 111 is rotatably matched with the mounting plate 100. The inner ring portion 112 is connected to the light emitting cover. The light emitting portion 1211 of the light guide cover 12 is supported on the connecting portion 122. An annular slide groove 101 is provided at the upper end of the mounting plate 100. The outer ring portion 111 of the knob body 11 is rotatably disposed in the annular slide groove 101.

[0046] Reference Figure 5 and Figure 6 , and combined with Figures 2 to 4 The light guide cover 12 includes a cover body 121, a connecting portion 122 and the above-mentioned combining portion 123. The cover body 121 is covered on the upper end of the knob body 11, and the outer edge of the cover body 121 forms a light emitting portion 1211; the connecting portion 122 is arranged at the lower end of the cover body 121, and the connecting portion 122 is located on the inner side of the inner ring portion 112, and the connecting portion 122 is used to connect with the inner ring portion 112 of the knob body 11; the combining portion 123 is arranged at the lower end of the cover body 121, and the combining portion 123 is used to combine with the control rod on the thermostat body. In this embodiment, the inner ring portion 112 of the knob body 11 and the connecting portion 122 of the light guide cover 12 are detachably connected. Exemplarily, the inner ring portion 112 of the knob body 11 and the connecting portion 122 of the light guide cover 12 may be connected by a snap connection, one of which is provided with a snap protrusion 114, and the other is provided with a snap groove 1221, and the snap protrusion 114 is snapped with the snap groove 1221. Preferably, the connecting portion 122 on the light guide cover 12 is annular, and a plurality of groups of snap protrusions 114 and snap grooves 1221 are distributed at intervals along the circumference of the connecting portion 122, so that the connection between the knob body 11 and the light guide cover 12 is more stable.

[0047] Reference Figures 7 to 9 , and combined with Figure 2The mounting cavity 132 of the light-transmitting cover 13 has a lower opening, and the lamp board is mounted in the mounting cavity 132 through the lower opening. A limiting structure is provided in the mounting cavity 132 to limit and fix the position of the lamp board in the mounting cavity 132. Specifically, the limiting structure includes an upper limit protrusion 133 and a lower limit protrusion 134. A plurality of upper limit protrusions 133 are circumferentially spaced apart on the inner and outer annular walls of the mounting cavity 132. A plurality of lower limit protrusions 134 are circumferentially spaced apart on the inner and / or outer annular walls of the mounting cavity 132. The upper limit protrusion 133 abuts against the upper end surface of the lamp board, and the lower limit protrusion 134 abuts against the lower end surface of the lamp board. The lower limit protrusion 134 includes a limit surface and a guide surface, wherein the limit surface abuts against the lower end surface of the lamp board, and the guide surface is arranged obliquely below the limit surface, and the guide surface is used to guide the installation of the lamp board to reduce the resistance between the upper limit protrusion 133 and the lower limit protrusion 134 when the lamp board is installed. In this embodiment, the lower limit protrusion 134 is arranged on the inner ring wall of the installation cavity 132, and when the lamp board passes over the lower limit protrusion 134, the inner ring wall of the installation cavity 132 will be deformed inward due to the extrusion of the lamp board. In order to reduce the deformation resistance of the inner ring wall of the installation cavity 132, a plurality of notches 135 are arranged on the inner ring wall of the installation cavity 132, and the plurality of notches 135 correspond to the plurality of lower limit protrusions 134 one by one.

[0048] The light-transmitting cover 13 and the mounting plate 100 are detachably connected. Exemplarily, a plurality of first clamping feet 136 are provided at the lower end of the light-transmitting cover 13, and a plurality of first clamping holes are provided on the mounting plate 100, and the plurality of first clamping feet 136 are clamped in a one-to-one correspondence with the plurality of first clamping holes. Preferably, the first clamping feet 136 are provided at the lower end of the outer annular wall of the mounting cavity 132, and the plurality of first clamping feet 136 are distributed at intervals along the circumferential direction of the outer annular wall of the mounting cavity 132 to improve the stability of the connection between the light-transmitting cover 13 and the mounting plate 100. A mounting groove 102 is provided at the upper end of the mounting plate 100, and the mounting groove 102 is located on the inner side of the annular slide groove 101, and the light-transmitting cover 13 is provided in the mounting groove 102.

[0049] Reference Fig.10 , and combined with Figure 2 and Figure 5The knob 10 provided in this embodiment also includes a light shielding plate 15, which is arranged at the upper end of the light guide cover 12, and the light shielding plate 15 covers the other parts of the upper end of the light guide cover 12 except the light outlet portion 1211. The upper end surface of the light guide cover 12 is provided with a receiving groove 1212, and the light shielding plate 15 is arranged in the receiving groove 1212 to prevent the light shielding plate 15 from protruding from the light guide cover 12, thereby improving the aesthetics of the appearance. In this embodiment, a detachable connection is adopted between the light shielding plate 15 and the light guide cover 12. Exemplarily, a second clamping foot 151 is provided at the lower end of the light shielding plate 15, and a second clamping hole 1213 is provided on the light guide cover 12, and the second clamping foot 151 is clamped with the second clamping hole 1213. Preferably, a guide column 152 is also provided at the lower end of the light shielding plate 15, and a guide hole is provided on the light guide cover 12, and the guide column 152 cooperates with the guide hole to guide the assembly between the light shielding plate 15 and the light guide cover 12.

[0050] The embodiment of the utility model further provides a water heater, including the above-mentioned thermostat assembly, wherein the mounting plate 100 is a maintenance cover of the water heater, and the thermostat body and the knob 10 are respectively located on two sides of the maintenance cover.

[0051] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A knob mounted on a mounting plate (100), characterized in that: The knob (10) structure comprises: A knob body (11) rotatably mounted on the mounting plate (100); A light-transmitting cover (13) is located inside the knob body (11) and connected to the mounting plate (100); the light-transmitting cover (13) has an annular mounting cavity (132); and a refractive portion (137) is provided inside the mounting cavity (132); A light guide cover (12) is arranged on the upper part of the knob body (11) and connected to the knob body (11), and the outer edge of the light guide cover (12) forms an annular light emitting portion (1211); A lamp assembly (14) comprises an annular lamp plate (141) and an indicator light (142), wherein the annular lamp plate (141) is fixed in the mounting cavity (132), a plurality of the indicator lights (142) are arranged on the annular lamp plate (141) and are distributed at intervals along the circumference of the annular lamp plate (141), and light emitted by the indicator lights (142) is refracted by the refraction portion (137) to the light emitting portion (1211).

2. The knob according to claim 1, characterized in that: The light emitting portion (1211) is supported on the upper end of the knob body (11), and the lower end surface of the light emitting portion (1211) is provided with an annular groove (1211a) extending along the contour of the light emitting portion (1211).

3. The knob according to claim 1, characterized in that: The knob body (11) comprises an outer ring portion (111), an inner ring portion (112) and a connecting portion (122); the inner ring portion (112) is located on the inner side of the outer ring portion (111); the upper end of the outer ring portion (111) is connected to the upper end of the inner ring portion (112) via the connecting portion (122); the outer ring portion (111) is rotatably matched with the mounting plate (100); the inner ring portion (112) is connected to the light guide cover (12); and the light output portion (1211) is supported on the connecting portion (122).

4. The knob according to claim 3, characterized in that: An annular sliding groove (101) is provided on the mounting plate (100), and the outer ring portion (111) is rotatably disposed in the annular sliding groove (101).

5. The knob according to claim 1, characterized in that: The light guide cover (12) comprises a cover body (121) and a connecting portion (122); the cover body (121) is arranged on the upper end of the knob body (11), and the outer edge of the cover body (121) forms the light emitting portion (1211); the connecting portion (122) is arranged at the lower end of the cover body (121), the connecting portion (122) is located on the inner side of the knob body (11), and the connecting portion (122) is used to connect to the knob body (11).

6. The knob according to claim 1, characterized in that: The installation cavity (132) has a lower opening, and the annular light panel (141) is installed in the installation cavity (132) through the lower opening. A limiting structure is provided in the installation cavity (132) to limit and fix the position of the annular light panel (141) in the installation cavity (132).

7. The knob according to claim 1, characterized in that: It also comprises a light shielding plate (15), wherein the light shielding plate (15) is arranged at the upper end of the light guide cover (12), and the light shielding plate (15) covers the other parts of the upper end of the light guide cover (12) except the light emitting portion (1211).

8. The knob according to claim 7, characterized in that: The upper end of the light guide cover (12) is provided with a receiving groove (1212), and the light shielding plate (15) is arranged in the receiving groove (1212).

9. The knob according to claim 7, characterized in that: The knob body (11) and the light guide cover (12), the light-transmitting cover (13) and the mounting plate (100), and the light shielding plate (15) and the light guide cover (12) are all connected by snap-fitting.

10. A thermostat assembly, characterized in that: It comprises a thermostat body, a mounting plate (100) and a knob (10) as claimed in any one of claims 1 to 9, wherein the thermostat body and the knob (10) are respectively arranged on two sides of the mounting plate (100), and a rotatable control rod is arranged on the thermostat body, and the control rod is connected to the knob (10).

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