Conventionally and universally compatible LED luminaire structure and linear luminaire

Abstract

The present invention discloses a conventionally and universally compatible LED luminaire structure, including: a luminaire body; a power assembly disposed on the luminaire body; a plug assembly, where the plug assembly includes a fixed seat, two functional terminals, and at least one basic terminal that are disposed on the luminaire body, where the functional terminal and the basic terminal are both disposed on the fixed seat, the functional terminal and the basic terminal are both electrically connected to the power assembly, one of the functional terminals is disposed movably, the other one of the functional terminals is disposed fixedly, and one of the functional terminals is capable of approaching or leaving the other functional terminal with respect to the fixed seat; and an adapter assembly having one end electrically connected to the functional terminal and the basic terminal. The present invention further discloses a linear luminaire. This application effectively improves the universality of the LED luminaire, allowing one LED luminaire to be compatible with one or more such luminaires for mounting, thus facilitating the use of the LED luminaires by people.

Description

FIELD OF TECHNOLOGY

[0001] The present invention relates to the field of lighting technology, and in particular to, a conventionally and universally compatible LED luminaire structure and a linear luminaire.BACKGROUND

[0002] With the development of the LED industry, it is increasingly common to use LED luminaires for lighting. However, the LED luminaires cannot directly use the conventional mains voltage. In order to meet the specific voltage and current requirements of LED luminaires, specially designed voltage conversion devices must be used to ensure the normal operation of LED luminaires, and thus the LED luminaires and traditional luminaires are powered using different methods.

[0003] In the related art, most of the conventional luminaires are mounted integrally and uneasy to disassemble, and the power supplies are usually fixed inside the LED luminaires. However, the conventional LED luminaires are usually compatible with only one voltage, and when it is necessary to switch the live wire, the component inside the LED luminaire needs to be replaced, causing the LED luminaire to be less universal and making it inconvenient to use the LED luminaire.SUMMARY

[0004] To resolve the shortcomings of the related art, the present invention provides a conventionally and universally compatible LED luminaire structure and a linear luminaire.

[0005] The conventionally and universally compatible LED luminaire structure disclosed by the present invention includes: a luminaire body; a power assembly disposed on the luminaire body; a plug assembly, where the plug assembly includes a fixed seat, two functional terminals, and at least one basic terminal that are disposed on the luminaire body, where the functional terminal and the basic terminal are both disposed on the fixed seat, the functional terminal and the basic terminal are both electrically connected to the power assembly, one of the functional terminals is disposed movably, the other one of the functional terminals is disposed fixedly, and one of the functional terminals is capable of approaching or leaving the other functional terminal with respect to the fixed seat; and an adapter assembly having one end electrically connected to the functional terminal and the basic terminal.

[0006] According to an implementation of the present invention, the adapter assembly includes a connector, a first wiring harness set, and a first connection terminal. The first wiring harness set has one end electrically connected to the connector, and the first connection terminal is electrically connected to the other end of the first wiring harness set.

[0007] According to an implementation of the present invention, the adapter assembly includes a connector, a first wiring harness set, a first connection terminal, a second wiring harness set, and a second connection terminal. The first wiring harness set has one end electrically connected to the connector, the first connection terminal is electrically connected to the other end of the first wiring harness set, the second wiring harness set has one end electrically connected to the first connection terminal, and the second connection terminal is electrically connected to the other end of the second wiring harness set.

[0008] According to an implementation of the present invention, the fixed seat has a first fixed position and multiple conversion positions. The first fixed position corresponds to the functional terminal disposed fixedly, the conversion position corresponds to the functional terminal disposed movably, and the functional terminal disposed movably is movable with respect to the fixed seat to the corresponding conversion position.

[0009] According to an implementation of the present invention, the connector has a second fixed position and multiple connection positions, the second fixed position corresponds to the first fixed position, and the connection position corresponds to the conversion position.

[0010] According to an implementation of the present invention, the first wiring harness set includes multiple wire harnesses, and the multiple wire harnesses separately correspond to the second fixed position and the connection position.

[0011] According to an implementation of the present invention, the conventionally and universally compatible LED luminaire structure further includes a connection assembly. The adapter assembly is detachably connected to the luminaire body via the connection assembly.

[0012] According to an implementation of the present invention, the luminaire body includes a profile and a mounting position, and the mounting position is in the profile.

[0013] According to an implementation of the present invention, the conventionally and universally compatible LED luminaire structure further includes an upper cover and a fixing assembly, and the upper cover is detachably or fixedly connected to the luminaire body via the fixing assembly.

[0014] A linear luminaire disclosed by the present invention includes the foregoing conventionally and universally compatible LED luminaire structure.

[0015] This application has the following beneficial effects: When it is necessary to switch the live wire, the functional terminal disposed movably is moved linearly with respect to the fixed seat. In addition, the functional terminal is moved to a corresponding position, and one end of the adapter assembly is plugged into the plug assembly for cooperation, allowing the two functional terminals to be plugged into the adapter assembly for cooperation, so as to switch the live wire. In this way, the functional terminal being disposed movably effectively improves the universality of the LED luminaire, allowing one LED luminaire to be compatible with one or more such luminaires, thus facilitating the use of the LED luminaires by people.BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings described herein are intended for better understanding of this application, and constitute a part of this application. Exemplary embodiments and descriptions thereof in this application are intended to interpret this application and do not constitute any improper limitation on this application. In the accompanying drawings: FIG 1 is a three-dimensional diagram of a conventionally and universally compatible LED luminaire structure according to Embodiment 1; FIG 2 is a three-dimensional diagram of an assembly relationship between an adapter assembly and a luminaire body according to Embodiment 1; FIG 3 is a three-dimensional diagram of a plug assembly and a connector according to Embodiment 1; FIG 4 is an enlarged view of part A in FIG 2; FIG 5 is a three-dimensional diagram of assembly relationships between upper covers and fixing assemblies in different types according to Embodiment 1. FIG 6 is a first three-dimensional diagram of an assembly relationship between a power assembly, a plug assembly, and a mounting plate according to Embodiment 1. FIG 7 is a second three-dimensional diagram of an assembly relationship between a power assembly, a plug assembly, and a mounting plate according to Embodiment 1. FIG 8 is a three-dimensional diagram of a conventionally and universally compatible LED luminaire structure according to Embodiment 2. FIG 9 is a three-dimensional diagram of an assembly relationship between an adapter assembly and a luminaire body according to Embodiment 2.

[0017] In the accompanying drawings: 1. luminaire body; 11. profile; 12. mounting position; 2. power assembly; 3. plug assembly; 31. fixed seat; 32. functional terminal; 33. basic terminal; 34. first fixed position; 35. conversion position; 4. connection assembly; 41. first base body; 42. second base body; 43. clamping groove; 5. adapter assembly; 51. connector; 52. first wiring harness set; 53. first connection terminal; 54. second wiring harness set; 55. second connection terminal; 56. second fixed position; 57. connection position; 6. upper cover; 7. fixing assembly; 71. lower cover; 72. limit member; 73. first buckle bracket; 74. second buckle bracket; 75. shrinkage member; 76. reinforcement buckle; and 8. mounting plate.DESCRIPTION OF THE EMBODIMENTS

[0018] The following discloses multiple implementations of the present invention using drawings, and for the sake of clarity, many practical details are explained in the following description. However, it should be understood that these practical details are not intended to limit the scope of the present invention. In other words, in some implementations of the present invention, these practical details are not essential. Furthermore, for the sake of simplifying the drawings, some commonly known structures and components are illustrated in a simple schematic manner.

[0019] It should be noted that all directional indications such as up, down, left, right, front, rear, and the like, in the embodiments of the present invention are used solely for explaining the relative positional relationships and movements between components in a specific posture as shown in the drawings. If the specific posture changes, these directional indications also change accordingly.

[0020] Furthermore, in the present invention, descriptions involving "first', "second", and the like, are only used for descriptive purposes and not intended to limit the present invention, and do not specifically denote order or sequence. They are merely used to distinguish components or operations described using the same technical terms and should not be understood as indicating or implying their relative importance or suggesting the quantity of the indicated technical features. Therefore, a feature limited by "first" or "second" may explicitly or implicitly include at least one feature. In addition, the technical solutions in different embodiments can be combined with each other, but they must be based on what ordinary skilled personnel in this field can achieve. When the combination of technical solutions results in mutual contradictions or becomes unfeasible, such combination should be considered non-existent, and it is also not within the scope of protection required by the present invention.

[0021] For further understanding of the content, features, and benefits of the present invention, the following embodiments are used as examples for detailed description with reference to the accompanying drawings:Embodiment 1

[0022] Referring to FIGs. 1 and 2, FIG 1 is a three-dimensional diagram of a conventionally and universally compatible LED luminaire structure according to Embodiment 1; and FIG 2 is a three-dimensional diagram of an assembly relationship between an adapter assembly 5 and a luminaire body 1 according to an embodiment. The conventionally and universally compatible LED luminaire structure in this embodiment includes a luminaire body 1, a power assembly 2, a plug assembly 3, and an adapter assembly 5. The power assembly 2 and the plug assembly 3 are disposed on the luminaire body 1, and one end of the plug assembly 3 and the power assembly 2 are electrically interconnected. One end of the adapter assembly 5 is electrically connected to the plug assembly 3.

[0023] Preferably, the conventionally and universally compatible LED luminaire structure further includes a connection assembly 4, the connection assembly 4 is disposed on the luminaire body 1, and the adapter assembly 5 is detachably connected to and fixed to the luminaire body 1 via the connection assembly 4.

[0024] In practical application, the adapter assembly 5 is connected to the power supply and the other end of the adapter assembly 5 is connected to the plug assembly 3, so as to transfer the electrical energy of the power supply to the power assembly 2, such that the power assembly 2 drives the linear LED luminaire to work. After the adapter assembly 5 is mounted, the adapter assembly 5 is detachably mounted in the luminaire body 1 via the connection assembly 4. In this embodiment, there are four groups of connection assemblies 4 spaced apart from each other in the luminaire body 1. In addition, it should be noted that the conventionally and universally compatible LED luminaire structure in this embodiment is applied to a strip-shaped luminaire, preferably, a track light.

[0025] The luminaire body 1 includes a profile 11 and a mounting position 12, the profile 11 is strip-shaped, the mounting position 12 is located in the profile 11, and the mounting position 12 is arranged along the length direction of the profile 11. In this embodiment, the mounting position 12 may be a groove or in another shape. In addition, the power assembly 2 and the plug assembly 3 are both in the mounting position 12, and the adapter assembly 5 can be detachably mounted in the mounting position 12. It should be noted that the profile 11 further includes light sources, lenses, and the like, allowing for the normal operation of the luminaire. Details are not described herein again. The power assembly 2 is a power driver configured to drive the luminaire for illumination. The structure and type of the power assembly 2, herein, are not limited provided that the drive function is achieved.

[0026] Referring to FIGs. 3 and 4, FIG 3 is a three-dimensional diagram of a plug assembly 3 and a connector 51 according to an embodiment; and FIG 4 is an enlarged view of part A in FIG 2. Further, the plug assembly 3 includes a fixed seat 31, two functional terminals 32, and at least one basic terminal 33, and the fixed seat 31 is mounted in the profile 11. The functional terminal 32 and the basic terminal 33 are both mounted on a side of the fixed seat 31 back away from the profile 11 and electrically connected to the power assembly 2. In this embodiment, one functional terminal 32 is disposed movably, the other functional terminal 32 is disposed fixedly, and the functional terminal 32 disposed movably can approach or leave the functional terminal 32 disposed fixedly with respect to the fixed seat 31. In addition, one end of the adapter assembly 5 is electrically connected to the functional terminal 32 and the basic terminal 33, such that the functional terminal 32 disposed movably moves linearly with respect to the fixed seat 31 in a direction approaching or leaving the functional terminal 32 disposed fixedly, so as to switch the live wire in three modes, L1, L2, and L3, thus achieving three-phase electrical switching. In another embodiment, the two functional terminals 32 may alternatively be movably arranged in the fixed seat 31 based on actual requirements. The basic terminal 33 is configured to be electrically connected to the adapter assembly 5, so as to ensure the normal operation of the luminaire. In this embodiment, there are four basic terminals 33. In practical application, another quantity of basic terminals 33 may be also set based on actual requirements.

[0027] Specifically, the fixed seat 31 has a first fixed position 34 and multiple conversion positions 35. The first fixed position 34 corresponds to the functional terminal 32 disposed fixedly, the conversion position 35 corresponds to the functional terminal 32 disposed movably, and the functional terminal 32 disposed movably is movable with respect to the fixed seat 31 to the corresponding conversion position 35. In this embodiment, three conversion positions 35 are provided, which are used for switching live wire, and are sequentially located on a side of the first fixed position 34 on the fixed seat 31, to respectively correspond to the three modes: L1, L2, and L3. After the functional terminal 32 moves from one conversion position 35 to another conversion position 35, the live wire of the luminaire is switched and connected, so as to achieve three-phase electrical switching without the need to replace the plug assembly 3, thus improving the universality of the LED luminaire.

[0028] Further, the connection assembly 4 includes a first base body 41, a second base body 42, and a clamping groove 43. The first base body 41 is mounted in the mounting position 12, and the second base body 42 is clamped with the first base body 41 for cooperation. In practical application, one end of the second base body 42 is pulled, such that the second base body 42 can move with respect to the first base body 41. The clamping groove 43 is located between the first base body 41 and the second base body 42, and after the first base body 41 is clamped with the second base body 42, the clamping groove 43 is formed, where the clamping groove 43 is configured for fixing the adapter assembly 5. Certainly, in another embodiment, the adapter assembly 5 may further be detachably connected and fixed in the luminaire body 1 via a fastener such as a screw.

[0029] Further, the adapter assembly 5 includes a connector 51, a first wiring harness set 52, and a first connection terminal 53. The connector 51 is configured to be plugged into the plug assembly 3 for cooperation, one end of the first wiring harness set 52 is electrically connected to the connector 51, and the first connection terminal 53 is electrically connected to one end of the first wiring harness set 52 away from the connector 51. Specifically, the connector 51 has a second fixed position 56 and multiple connection positions 57. The second fixed position 56 corresponds to the first fixed position 34, the connection position 57 corresponds to the conversion position 35, and the multiple connection positions 57 respectively correspond to the three modes, L1, L2, and L3. In this embodiment, the first wiring harness set 52 includes multiple wire harnesses, and each wire harness corresponds to the second fixed position 56 and the connection position 57 of each connector 51. In practical application, the quantity of the wire harnesses can be set based on actual requirements. When the conversion position 35 needs to be switched so as to switch the live wire, the functional terminal 32 disposed movably is moved to the required conversion position 35, the connector 51 is plugged into the plug assembly 3 for cooperation, allowing the functional terminal 32 disposed fixedly to be plugged in the second fixed position 56 on the connector 51, and the functional terminal 32 moved to the required conversion position 35 is plugged in the corresponding connection position 57 on the connector 51, so as to switch the live wire, thus improving the universality of the LED luminaire. In practical application, the connector 51 is connected to the plug assembly 3, and the first connection terminal 53 is externally connected to mains supply, such that one LED luminaire is compatible with another one for mounting.

[0030] Referring to FIG 5, FIG 5 is a three-dimensional diagram of assembly relationships between upper covers 6 and fixing assemblies 7 in different types according to Embodiment 1. The conventionally and universally compatible LED luminaire structure in this embodiment further includes an upper cover 6 and various fixing assemblies 7. The upper cover 6 is detachably connected to and fixed to the luminaire body 1, and the various fixing assemblies 7 are spaced apart in the luminaire body 1, allowing the upper cover 6 to be relatively fixed to the luminaire body 1. In this embodiment, the upper cover 6 may be manufactured in different types based on requirements. It should be noted that the upper cover 6 may further be fixedly connected to the luminaire body 1 via a fastener.

[0031] Specifically, the fixing assembly 7 includes a lower cover 71, a limit member 72, a first buckle bracket 73, a second buckle bracket 74, a shrinkage member 75, and a reinforcement buckle 76, the lower cover 71 being mounted in the profile 11. The limit member 72 is mounted above the lower cover 71. In this embodiment, two limit members 72 are provided and opposite each other along the length direction of the profile 11. The first buckle bracket 73 and the second buckle bracket 74 are respectively disposed on two sides of the profile 11, and one ends, of the first buckle bracket 73 and the second buckle bracket 74, facing each other penetrate into the mounting position 12. In this embodiment, the first buckle bracket 73 and the second buckle bracket 74 are elastically connected, which may be achieved herein via an elastic member such as a spring. The shrinkage member 75 is roughly L-shaped. In this embodiment, the shrinkage member 75 is of a spring sheet structure, and two shrinkage members 75 are provided and respectively mounted at upper ends of the first buckle bracket 73 and the second buckle bracket 74, and have an acute angle therebetween. The reinforcement buckle 76 is mounted on the first buckle bracket 73 and the second buckle bracket 74, and the reinforcement buckle 76 is located below the shrinkage member 75 and forms a clamping position with the shrinkage member 75. In this embodiment, the reinforcement buckle 76 is prepared using a plastic material. When the upper cover 6 needs to be covered, the upper cover 6 is moved in a direction facing the lower cover 71, allowing the bottom end of the upper cover 6 to abut against the top end of the shrinkage member 75 and move downwards along an inclined surface at the top end of the shrinkage member 75. As the upper cover 6 moves, the upper cover 6 and the shrinkage member 75 abut against each other and slide from each other, such that the top ends of the two shrinkage members 75 approach each other, thus allowing for clearance for the top cover 6. After the bottom end of the upper cover 6 moves to the clamping position, under the elastic force of the shrinkage member 75 and the reinforcement buckle 76, the top ends of the two shrinkage members 75 leave each other, such that the upper cover 6 and the lower cover 71 are interlocked tightly, thus achieving the technical effect of quickly mounting the upper cover 6.

[0032] Referring to FIGs. 6 and 7, FIG 6 is a first three-dimensional diagram of an assembly relationship between a power assembly 2, a plug assembly 3, and a mounting plate 8 according to Embodiment 1; and FIG 7 is a second three-dimensional diagram of an assembly relationship between a power assembly 2, a plug assembly 3, and a mounting plate 8 according to Embodiment 1. The conventionally and universally compatible LED luminaire structure in this embodiment further includes a mounting plate 8, and the mounting plate 8 is detachably mounted on the luminaire body 1. In this embodiment, the power assembly 2 and the plug assembly 3 are both mounted on the mounting plate 8. If during the actual assembly, the original positions for mounting the power assembly 2 and the plug assembly 3 interfere with the position of other workpieces, they can be adjusted by moving the mounting plate 8 in the mounting position 12.Embodiment 2

[0033] Referring to FIGs. 8 and 9, FIG 8 is a three-dimensional diagram of a conventionally and universally compatible LED luminaire structure according to Embodiment 2; and FIG 9 is a three-dimensional diagram of an assembly relationship between an adapter assembly 5 and a luminaire body 1 according to Embodiment 2. The conventionally and universally compatible LED luminaire structure in this embodiment and that in Embodiment 1 differ in the adapter assembly 5. Specifically, the adapter assembly 5 includes a connector 51, a first wiring harness set 52, a first connection terminal 53, a second wiring harness set 54, and a second connection terminal 55. The first wiring harness set 52 has one end electrically connected to the connector 51, and the first connection terminal 53 is electrically connected to the other end of the first wiring harness set 52 away from the connector 51. One end of the second wiring harness set 54 is electrically connected to the first connection terminal 53, and the second connection terminal 55 is connected to one end of the second wiring harness set 54 away from the first connection terminal 53. The first connection terminal 53 in this embodiment and the first connection terminal 53 in Embodiment 1 are in different shapes, which can be changed based on actual requirements. In addition, the second wiring harness set 54 and the first wiring harness set 52 are of the same structure, the second wiring harness set 54 and the first wiring harness set 52 have the same quantity of wire harnesses, and the second wiring harness set 54 is longer than the first wiring harness set 52. In addition, the wire harness on the second wiring harness set 54 similarly corresponds to both the second fixed position 56 and the connection position 57 on the connector 51. In practical application, the connector 51 is connected to the plug assembly 3, and the first connection terminal 53 or the second connection terminal 54 is externally connected to mains supply, allowing the adapter assembly 5 to be suitable for different power supply interfaces and more flexible, such that one LED luminaire is compatible with more such luminaires for mounting.Embodiment 3

[0034] A linear luminaire in this embodiment includes the conventionally and universally compatible LED luminaire structure in Embodiment 1 or 2.

[0035] In summary, in the conventionally and universally compatible LED luminaire structure and the linear luminaire of this application, when the conversion position 35 needs to be switched so as to switch the live wire, the functional terminal 32 disposed movably is moved linearly with respect to the fixed seat 31. In this case, the functional terminal 32 is moved to the required conversion position 35. The connector 51 is plugged into the plug assembly 3 for cooperation, allowing the functional terminal 32 disposed fixedly to be plugged in the second fixed position 56 on the connector 51, and the functional terminal 32 moved to the required conversion position 35 is plugged in the corresponding connection position 57 on the connector 51, so as to switch the live wire, thus improving the universality of the LED luminaire. In this way, the functional terminal 32 being disposed movably effectively improves the universality of the LED luminaire, allowing one LED luminaire to be compatible with one or more such luminaires, thus facilitating the use of the LED luminaires by people.

[0036] The foregoing descriptions are merely implementations of the present invention and do not limit the present invention. For a person skilled in the art, the present invention may have various changes and variations. Any modification, equivalent replacement, improvement, or the like made within the spirit and principle of the present invention shall fall into the scope of claims of the present invention.

Claims

1. A conventionally and universally compatible light-emitting diode (LED) luminaire structure, comprising: a luminaire body (1); a power assembly (2) disposed on the luminaire body (1); a plug assembly (3), wherein the plug assembly (3) comprises a fixed seat (31), two functional terminals (32), and at least one basic terminal (33) that are disposed on the luminaire body (1), wherein the functional terminal (32) and the basic terminal (33) are both disposed on the fixed seat (31), the functional terminal (32) and the basic terminal (33) are both electrically connected to the power assembly (2), one of the functional terminals (32) is disposed movably, the other one of the functional terminals (32) is disposed fixedly, and one of the functional terminals (32) is capable of approaching or leaving the other functional terminal (32) with respect to the fixed seat (31); and an adapter assembly (5) having one end electrically connected to the functional terminal (32) and the basic terminal (33).

2. The conventionally and universally compatible LED luminaire structure according to claim 1, wherein the adapter assembly (5) comprises a connector (51), a first wiring harness set (52), and a first connection terminal (53), wherein the first wiring harness set (52) has one end electrically connected to the connector (51), and the first connection terminal (53) is electrically connected to the other end of the first wiring harness set (52).

3. The conventionally and universally compatible LED luminaire structure according to claim 1, wherein the adapter assembly (5) comprises a connector (51), a first wiring harness set (52), a first connection terminal (53), a second wiring harness set (54), and a second connection terminal (55), wherein the first wiring harness set (52) has one end electrically connected to the connector (51), the first connection terminal (53) is electrically connected to the other end of the first wiring harness set (52), the second wiring harness set (54) has one end electrically connected to the first connection terminal (53), and the second connection terminal (55) is electrically connected to the other end of the second wiring harness set (54).

4. The conventionally and universally compatible LED luminaire structure according to any one of claims 1 to 3, wherein the fixed seat (31) has a first fixed position (34) and multiple conversion positions (35), wherein the first fixed position (34) corresponds to the functional terminal (32) disposed fixedly, the conversion position (35) corresponds to the functional terminal (32) disposed movably, and the functional terminal (32) disposed movably is movable with respect to the fixed seat (31) to the corresponding conversion position (35).

5. The conventionally and universally compatible LED luminaire structure according to claim 4, wherein the connector (51) has a second fixed position (56) and multiple connection positions (57), the second fixed position (56) corresponds to the first fixed position (34), and the connection position (57) corresponds to the conversion position (35).

6. The conventionally and universally compatible LED luminaire structure according to claim 5, wherein the first wiring harness set (52) comprises multiple wire harnesses, and the multiple wire harnesses each correspond to the second fixed position (56) and the connection position (57).

7. The conventionally and universally compatible LED luminaire structure according to claim 4, further comprising a connection assembly (4), wherein the adapter assembly (5) is detachably connected to the luminaire body (1) via the connection assembly (4).

8. The conventionally and universally compatible LED luminaire structure according to claim 4, wherein the luminaire body (1) comprises a profile (11) and a mounting position (12), and the mounting position (12) is in the profile (11).

9. The conventionally and universally compatible LED luminaire structure according to claim 4, further comprising an upper cover (6) and a fixing assembly (7), wherein the upper cover (6) is detachably or fixedly connected to the luminaire body (1) via the fixing assembly (7).

10. A linear luminaire, comprising the conventionally and universally compatible LED luminaire structure according to any one of claims 1 to 9.

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