Connector and electronic equipment
By designing a Y-type sealing ring in the floating connector, the problem of insufficient sealing between the floating connector and the device panel is solved, achieving effective sealing in the floating state. The structure is simple and the sealing effect is significant.
Patent Information
- Application Number
- CN202520038900.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-07
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2035-01-07
AI Technical Summary
Existing floating connectors have difficulty ensuring a proper seal between themselves and the device panel when floating, and cannot achieve an effective seal by pre-tightening with conventional sealing rings.
A specially shaped sealing ring is designed, including a sealing lip and a support ring. The first and second sidewalls of the sealing lip are inclined to form a Y-shaped cross-section, which is used to ensure that operation is not affected when floating, and to achieve a tight seal by adhering to the device panel when sealing.
Without affecting the floating operation, it achieves an effective seal between the floating connector and the equipment panel. The structure is simple, easy to produce and use, and the sealing effect is significant.
Smart Images

Figure CN223797648U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of electronic devices, and more particularly to a connector and an electronic device. Background Technology
[0002] In existing floating connections, the floating connector and the device panel have a clearance fit when the connector is floating. This means that the floating connector and the device panel cannot be pre-pressed with conventional sealing rings to achieve a seal, making it difficult to ensure the sealing performance at the connection. Utility Model Content
[0003] This application aims to address at least one of the technical problems existing in the prior art. To this end, this application proposes a connector that can ensure a floating function while also achieving a sealing function between the connector and the device panel.
[0004] This application also proposes an electronic device having the aforementioned connector.
[0005] The connector according to the first aspect embodiment of this application includes:
[0006] A shell plate, wherein a first plug-in end is provided on one side of the shell plate, and the shell plate is provided with at least two connection holes, wherein the at least two connection holes are provided on opposite sides of the first plug-in end, the connection holes are used for floating connection with an external device panel, and the first plug-in end is used for connection with the interface of the external device panel.
[0007] A sealing ring, comprising a sealing lip and a support ring, wherein the support ring is disposed on the side of the shell plate having the first insertion end, and the first insertion end is disposed within the support ring; the sealing lip is disposed on the support ring; the sealing lip comprises a first sidewall and a second sidewall; one end of the first sidewall is connected to one end of the second sidewall and disposed on the support ring; the other end of the first sidewall is inclined away from the second sidewall; and the other end of the second sidewall is inclined away from the first sidewall; the sealing lip is used to adsorb an external device panel.
[0008] The connector according to the embodiments of this application has at least the following beneficial effects: by providing a connection hole for floating connection with the device panel through the connection hole, the sealing ring is provided with a first sidewall, a second sidewall and a support ring. One end of the first sidewall and one end of the second sidewall are connected and disposed on the support ring. The other end of the first sidewall is inclined away from the second sidewall, and the other end of the second sidewall is inclined away from the first sidewall. Thus, the first sidewall, the second sidewall and the support ring form a sealing ring with a Y-shaped cross-section. When floating, it will not affect the floating operation. When sealing, the V-shaped groove formed by the first sidewall and the second sidewall of the Y-shaped sealing ring will expel air and then tightly adhere to the external device panel to achieve a seal. Thus, the sealing effect can be achieved while ensuring the floating connection. Since this effect can be achieved by using only a sealing ring with a Y-shaped cross-section, the overall structure is relatively simple, which is convenient for production and use. At the same time, the design of the first sidewall and the second sidewall of the sealing ring makes the sealing effect more significant.
[0009] According to some embodiments of this application, a screw is also included, the screw including a nut and a stud, the stud engaging with the connecting hole, the cross-sectional area of the nut being larger than the cross-sectional area of the connecting hole, the cross-sectional area of the stud being smaller than the cross-sectional area of the connecting hole, the stud being connected to the nut, and the end of the stud away from the nut being provided with a thread, the stud being threadedly connected to an external device panel through the thread.
[0010] According to some embodiments of this application, the vertical distance between the end of the first sidewall away from the shell plate and the shell plate is less than the distance between the shell plate and the external device panel.
[0011] According to some embodiments of this application, the shell plate further includes a second plug-in end, the second plug-in end is disposed on the side of the shell plate away from the first plug-in end, the second plug-in end is provided with a terminal, a locking groove and a terminal slot, the locking groove and the terminal slot are adjacent and connected, the terminal is disposed in the terminal slot, the terminal is provided with a locking member, and the locking member is engaged with the locking groove.
[0012] According to some embodiments of this application, the first plug-in terminal is further provided with a placement hole, one end of the terminal passes through the terminal slot, and the other end passes through the placement hole.
[0013] According to some embodiments of this application, the second plug-in terminal is further provided with a slot and a pin, the slot and the pin are respectively provided on opposite sides of the second plug-in terminal, at least two connection holes are provided on opposite sides of the second plug-in terminal, and the slot and the pin are provided between at least two connection holes.
[0014] According to some embodiments of this application, the first plug-in terminal is further provided with a power terminal, which is disposed between at least two of the connection holes.
[0015] According to some embodiments of this application, the support ring and the shell plate are engaged.
[0016] According to some embodiments of this application, the shell plate has an annular groove on the side where the first insertion end is located, and the support ring is engaged with the shell plate through the annular groove.
[0017] An electronic device according to a second aspect embodiment of this application includes:
[0018] The connector of the first aspect embodiment of this application.
[0019] The electronic device according to the embodiments of this application has at least the following beneficial effects: By providing a connection hole for floating connection with the device panel, the sealing ring has a first sidewall, a second sidewall, and a support ring. One end of the first sidewall and one end of the second sidewall are connected and disposed on the support ring. The other end of the first sidewall is inclined away from the second sidewall, and the other end of the second sidewall is inclined away from the first sidewall. Thus, the first sidewall, the second sidewall, and the support ring form a sealing ring with a Y-shaped cross-section. Floating does not affect the floating operation. During sealing, the V-shaped groove formed by the first and second sidewalls of the Y-shaped sealing ring expels air, thereby tightly adhering to the external device panel to achieve a seal. This achieves a sealing effect while ensuring a floating connection. Since this effect can be achieved using only a Y-shaped sealing ring, the overall structure is simpler, facilitating production and use. Furthermore, the design of the first and second sidewalls of the sealing ring makes the sealing effect more significant. Using the connector of this application makes the sealing performance of the electronic device more stable and the structure simpler.
[0020] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description
[0021] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:
[0022] Figure 1 This is a schematic cross-sectional view of the connector according to an embodiment of this application;
[0023] Figure 2 This is a schematic diagram of the connector according to an embodiment of this application;
[0024] Figure 3 for Figure 1 A schematic diagram of the connector from another perspective of an embodiment of this application;
[0025] Figure 4 for Figure 1 A schematic diagram of the connector from another perspective of an embodiment of this application;
[0026] Figure 5 This is a schematic diagram of a fixed connector according to an embodiment of this application;
[0027] Figure 6 This is a schematic diagram showing the positional relationship between the screws, sealing rings, and external device panels in an embodiment of this application.
[0028] Figure label:
[0029] Shell plate 100; first plug-in terminal 101; second plug-in terminal 102; placement hole 103; power terminal 104; connection hole 105; plug post 106; slot 107; locking slot 108; support ring 110; sealing lip 120; first side wall 121; second side wall 122; terminal 130; locking piece 131; stud 140; nut 141; terminal slot 150; fixed connector 200; external device panel. Detailed Implementation
[0030] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.
[0031] In the description of this application, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.
[0032] In the description of this application, "several" means one or more, "more than" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.
[0033] In the description of this application, unless otherwise expressly defined, terms such as "setup," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this application in conjunction with the specific content of the technical solution.
[0034] Currently, because the floating connector needs to achieve floating operation, the existing sealing structure will affect the floating effect. Therefore, it is not possible to use a sealing ring to pre-compress the floating connector and the external device panel 300 to achieve a sealing effect.
[0035] Based on this, this application proposes a connector that, by setting a specially shaped sealing ring between the connector and the external device panel 300, can achieve a sealing effect on the connector and the external device panel 300 after the connection is fixed, while ensuring the floating effect.
[0036] The following reference Figure 1 and Figure 2 The connectors described in embodiments of this application are described.
[0037] It is understood that the connector in this embodiment includes a shell plate 100 and a sealing ring. A first insertion end 101 is provided on one side of the shell plate 100. The shell plate 100 has at least two connection holes 105 located on opposite sides of the first insertion end 101. The connection holes 105 are used for floating connection with an external device panel 300, and the first insertion end 101 is used for interface connection with the external device panel 300. The sealing ring includes a sealing lip 120 and a support ring 110. The support ring 110 is located on the shell plate 100 where the first insertion end 101 is located. A first plug-in end 101 is located within a support ring 110. A sealing lip 120 is located on the support ring 110. The sealing lip 120 includes a first sidewall 121 and a second sidewall 122. One end of the first sidewall 121 is connected to one end of the second sidewall 122 and is located on the support ring 110. The other end of the first sidewall 121 is inclined away from the second sidewall 122. The other end of the second sidewall 122 is inclined away from the first sidewall 121. The sealing lip 120 is used to adsorb the external device panel 300.
[0038] The beneficial effects of the connector in this embodiment are as follows: By providing a connection hole 105, it allows for a floating connection with an external device panel 300. The sealing ring includes a first sidewall 121, a second sidewall 122, and a support ring 110. One end of the first sidewall 121 is connected to one end of the second sidewall 122 and is mounted on the support ring 110. The other end of the first sidewall 121 is inclined away from the second sidewall 122, and the other end of the second sidewall 122 is inclined away from the first sidewall 121. Thus, the first sidewall 121, the second sidewall 122, and the support ring 110 form a horizontal... The Y-shaped sealing ring does not affect the floating operation when floating. When sealing, the V-shaped groove formed by the first sidewall 121 and the second sidewall 122 of the Y-shaped sealing ring expels air and then tightly adheres to the external equipment panel 300 to achieve a seal. This achieves the effect of sealing while ensuring the floating connection. Since this effect can be achieved by using only a Y-shaped sealing ring, the overall structure is relatively simple, which is convenient for production and use. At the same time, the design of the first sidewall 121 and the second sidewall 122 of the sealing ring makes the sealing effect more significant.
[0039] For example, in some embodiments, reference is made to Figure 1 and Figure 2 In this embodiment, each of the opposite sides of the shell plate 100 is provided with a connection hole 105. The connection hole 105 has a notch structure, which facilitates increasing the floating range of the connector and thus improving the flexibility of the connector. The sealing ring includes a sealing lip 120 and a support ring 110. The sealing ring is an elastic structure with a Y-shaped cross-section. The sealing lip 120 has a V-shaped cross-section. The support ring 110 tightly surrounds the first insertion end 101 to ensure its sealing performance. The sealing lip 120 includes a first sidewall 121 and a second sidewall 122. A V-shaped groove is formed between the first sidewall 121 and the second sidewall 122. The sealing lip 120 and the support ring 110 form a V-shaped groove. The ring 110 is a one-piece structure. The sealing lip 120 is located on the side of the support ring 110 near the external device panel 300. As the sealing lip 120 gradually approaches the external device panel 300, the first sidewall 121 tilts away from the second sidewall 122, while the second sidewall 122 tilts away from the first sidewall 121. At this time, the air in the V-shaped groove is gradually discharged. Finally, the first sidewall 121 and the second sidewall 122 abut against the external device panel 300, thereby causing the sealing lip 120 to adhere to the external device panel 300, thus realizing the sealing function of the sealing ring for the external device panel 300 and the connector.
[0040] It is understood that the connector also includes screws, which include nuts 141 and studs 140. The studs 140 engage with the connecting hole 105. The cross-sectional area of the nuts 141 is larger than that of the connecting hole 105, and the cross-sectional area of the studs 140 is smaller than that of the connecting hole 105. The studs 140 are connected to the nuts 141, and the end of the studs 140 away from the nuts 141 is threaded. The studs 140 are threaded to the external device panel 300.
[0041] For example, in some embodiments, reference is made to Figure 2 In this embodiment, there are two screws, each corresponding to one of the two connecting holes 105. The nut 141 and the stud 140 are integral components. The cross-sectional area of the stud 140 is smaller than that of the connecting hole 105, so that the stud 140 has a certain amount of room to move within the connecting hole 105, which facilitates the floating operation of the connector. The cross-sectional area of the nut 141 is larger than that of the connecting hole 105, so that the screw limits the connecting hole 105 and prevents the connector from detaching from the screw. The end of the stud 140 away from the nut 141 is threaded, which facilitates fixing to the external device panel 300 through the thread. The connector is in a floating state between the two screws fixed to the external device panel 300.
[0042] It is understandable that the vertical distance between the end of the first sidewall 121 away from the shell plate 100 and the shell plate 100 is less than the distance between the shell plate 100 and the external equipment panel 300.
[0043] For example, in some embodiments, reference is made to Figure 2 and Figure 6 In this embodiment, the vertical distance between the end of the first sidewall 121 away from the shell plate 100 and the shell plate 100 is less than the distance between the shell plate 100 and the external device panel 300. Similarly, the vertical distance between the end of the second sidewall 122 away from the shell plate 100 and the shell plate 100 is also less than the distance between the shell plate 100 and the external device panel 300. This allows the connecting hole 105 to float along the stud 140 without affecting the sealing effect of the sealing ring. In other words, the sealing ring will not cause excessive resistance to the floating operation of the connecting hole 105 along the stud 140.
[0044] It is understood that the shell plate 100 also includes a second plug-in end 102. The second plug-in end 102 is located on the side of the shell plate 100 away from the first plug-in end 101. The second plug-in end 102 is provided with a terminal 130, a locking groove 108 and a terminal groove 150. The locking groove 108 and the terminal groove 150 are adjacent and connected. The terminal 130 is located in the terminal groove 150. The terminal 130 is provided with a locking member 131. The locking member 131 is engaged with the locking groove 108.
[0045] For example, in some embodiments, reference is made to Figure 1 , Figure 3 , Figure 4 and Figure 5 In this embodiment, a second insertion end 102 is provided on the side of the shell plate 100 away from the first insertion end 101. The second insertion end 102 is provided with a first groove, and a plurality of terminal slots 150 and a plurality of locking slots 108 are provided in the first groove. The plurality of terminal slots 150 and the plurality of locking slots 108 correspond one-to-one. The terminal slots 150 and the corresponding locking slots 108 are adjacent and connected. A plurality of terminals 130 are also provided. One terminal 130 is provided in one terminal slot 150. The terminal 130 passes through the terminal slot 150. 0. The terminal slot 150 includes a first column and a second column. The first column is provided with a locking member 131 on the side near the locking slot 108. The locking member 131 is a rectangular sheet structure. One end of the locking member 131 is connected to the terminal slot 150, and the other end abuts against the locking slot 108, thereby realizing the locking connection between the terminal 130 and the locking slot 108 to prevent the terminal 130 from falling out of the terminal slot 150. The portion of the terminal 130 outside the terminal slot 150 is used to connect with the fixed connector 200.
[0046] It is understandable that the first plug-in end 101 is also provided with a placement hole 103, one end of the terminal 130 passes through the terminal slot 150, and the other end passes through the placement hole 103.
[0047] For example, in some embodiments, reference is made to Figure 2 and Figure 3 In this embodiment, the first plug end 101 is provided with a plurality of placement holes 103 for inserting the terminal 130. The terminal 130 is thus inserted through the placement holes 103 and the terminal slot 150. The terminal 130 is not an integral part of the connector, which facilitates the replacement of different types of terminals 130 and makes the connector more widely applicable.
[0048] It is understood that the second plug end 102 is also provided with a slot 107 and a plug 106. The slot 107 and the plug 106 are respectively provided on opposite sides of the second plug end 102. At least two connection holes 105 are provided on opposite sides of the second plug end 102. The slot 107 and the plug 106 are provided between the at least two connection holes 105.
[0049] For example, in some embodiments, reference is made to Figure 3 and Figure 5 In this embodiment, there are two slots 107 and two pins 106. Each side of the second insertion end 102 is provided with a slot 107 and a pin 106 and is adjacent to the first groove, which facilitates engagement with the fixed connector 200, thereby strengthening the connection between the two and making the connection more stable.
[0050] It is understandable that the first plug-in end 101 is also provided with a power terminal 104, which is located between at least two connection holes 105.
[0051] For example, in some embodiments, reference is made to Figure 2 In this embodiment, two power terminals 104 are provided. The two power terminals 104 are located on both sides of the first plug-in end 101 and adjacent to the placement hole 103. The arrangement of the power terminals 104 facilitates the connection and placement of the power supply. The power supply is electrically connected to the terminal 130 so as to transmit current signals through the terminal 130.
[0052] It is understandable that the support ring 110 and the shell plate 100 are engaged.
[0053] For example, in some embodiments, reference is made to Figure 1 In this embodiment, the support ring 110 and the shell plate 100 are connected by a snap-fit connection so that the support ring 110 can be replaced, thus extending the service life of the product.
[0054] It is understandable that the shell plate 100 has an annular groove on one side where the first insertion end 101 is provided, and the support ring 110 is engaged with the shell plate 100 through the annular groove.
[0055] For example, in some embodiments, reference is made to Figure 1 In this embodiment, the shell plate 100 is provided with an annular groove, the first insertion end 101 is surrounded by the annular groove, and the support ring 110 is engaged with the shell plate 100 through the annular groove. The setting of the annular groove facilitates the improvement of the firmness of the connection between the support ring 110 and the shell plate 100.
[0056] For example, see reference Figure 1 , Figure 2 and Figure 5 The use of the connector of this application will be specifically described below with reference to a specific embodiment.
[0057] In this embodiment, the connector of this application serves as the male connector, while the fixed connector 200 serves as the female connector and connects to the male connector. Two screws are fixed to the external device panel 300. The connector can move between the two screws through the connection hole 105, thereby realizing a floating operation. The terminal 130 passes through the terminal slot 150, and the fixed connector 200 has a terminal 130 hole corresponding to each terminal 130. The fixed connector 200 is fixedly connected to the outside, which facilitates better floating connection operation. The connector causes the terminal 130 to find the corresponding terminal 130 hole through the floating operation. At this time, the connector and the fixed connector 200 gradually approach each other, and the terminal 130 and the terminal 130 hole achieve a snap-fit connection. The terminal 130 is electrically connected to the power supply, and current can be transmitted to the fixed connector 200 through the terminal 130. 0. Due to the effect of the reaction force, the fixed connector 200 will also apply a force towards the external device panel 300 to the connector, causing the external device panel 300 to gradually approach the connector. At this time, the sealing lip 120 is in contact with the device panel, the first sidewall 121 is inclined away from the second sidewall 122 and gradually approaches the external device panel 300, and the second sidewall 122 is also inclined away from the first sidewall 121 and gradually approaches the external device panel 300. The air in the V-shaped groove between the first sidewall 121 and the second sidewall 122 is also gradually discharged. Finally, the first sidewall 121 and the second sidewall 122 abut against the external device panel 300, realizing that the sealing lip 120 is adsorbed on the external device panel 300, thereby realizing the sealing effect between the connector and the external device panel 300.
[0058] An electronic device according to a second aspect embodiment of the application includes the connector described in the first aspect embodiment of the application above.
[0059] According to an embodiment of this application, the electronic device has a connection hole 105 for floating connection with an external device panel 300. The sealing ring has a first sidewall 121, a second sidewall 122, and a support ring 110. One end of the first sidewall 121 is connected to one end of the second sidewall 122 and is disposed on the support ring 110. The other end of the first sidewall 121 is inclined away from the second sidewall 122, and the other end of the second sidewall 122 is inclined away from the first sidewall 121. Thus, the first sidewall 121, the second sidewall 122, and the support ring 110 form a sealing ring with a Y-shaped cross-section, which will not interfere with the floating operation during floating. The sealing ring, with a Y-shaped cross-section, allows air to escape through the V-shaped groove formed by the first sidewall 121 and the second sidewall 122, which then tightly adheres to the external device panel 300 to achieve a seal. This ensures both a floating connection and a sealing effect. Since only a Y-shaped cross-section sealing ring is used to achieve this effect, the overall structure is simpler, making it easier to manufacture and put into use. Furthermore, the design of the first sidewall 121 and the second sidewall 122 of the sealing ring enhances the sealing effect. By using the connector of this application, the sealing performance of the electronic device of this application is more stable, and the structure is simpler.
[0060] Since the electronic device includes the connector of the first aspect embodiment, the corresponding contents of the connector in the first aspect embodiment can be applied to the electronic device of the second aspect, and have the same implementation principle and technical effect. To avoid redundancy, they will not be described in detail here.
[0061] The embodiments of this application have been described in detail above with reference to the accompanying drawings. However, this application is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this application.
Claims
1. A connector, characterized in that, include: A shell plate, wherein a first plug-in end is provided on one side of the shell plate, and the shell plate is provided with at least two connection holes, wherein the at least two connection holes are provided on opposite sides of the first plug-in end, the connection holes are used for floating connection with an external device panel, and the first plug-in end is used for connection with the interface of the external device panel. A sealing ring, comprising a sealing lip and a support ring, wherein the support ring is disposed on the side of the shell plate having the first insertion end, and the first insertion end is disposed within the support ring; the sealing lip is disposed on the support ring; the sealing lip comprises a first sidewall and a second sidewall; one end of the first sidewall is connected to one end of the second sidewall and disposed on the support ring; the other end of the first sidewall is inclined away from the second sidewall; and the other end of the second sidewall is inclined away from the first sidewall; the sealing lip is used to adsorb an external device panel.
2. The connector according to claim 1, characterized in that, It also includes a screw, which includes a nut and a stud. The stud engages with the connecting hole. The cross-sectional area of the nut is larger than that of the connecting hole, and the cross-sectional area of the stud is smaller than that of the connecting hole. The stud is connected to the nut, and the end of the stud away from the nut is threaded. The stud is threaded to the external device panel through the thread.
3. The connector according to claim 2, characterized in that, The vertical distance between the end of the first sidewall away from the shell plate and the shell plate is less than the distance between the shell plate and the external device panel.
4. The connector according to claim 1, characterized in that, The shell plate further includes a second plug-in end, which is located on the side of the shell plate away from the first plug-in end. The second plug-in end is provided with a terminal, a locking groove and a terminal slot. The locking groove and the terminal slot are adjacent and connected. The terminal is located in the terminal slot and is provided with a locking member. The locking member is engaged with the locking groove.
5. The connector according to claim 4, characterized in that, The first plug-in terminal is also provided with a placement hole, one end of the terminal passes through the terminal slot, and the other end passes through the placement hole.
6. The connector according to claim 4, characterized in that, The second plug end is further provided with a slot and a pin, the slot and the pin are respectively provided on opposite sides of the second plug end, at least two of the connection holes are provided on opposite sides of the second plug end, and the slot and the pin are provided between at least two of the connection holes.
7. The connector according to claim 1, characterized in that, The first plug-in terminal is also provided with a power terminal, which is located between at least two of the connection holes.
8. The connector according to claim 1, characterized in that, The support ring and the shell plate are engaged.
9. The connector according to claim 8, characterized in that, The shell plate has an annular groove on the side where the first insertion end is located, and the support ring is engaged with the shell plate through the annular groove.
10. An electronic device, characterized in that, include: The connector according to any one of claims 1 to 9.