KR100343521B1 - Computer keyboard whose particular key group is detachable - Google Patents

Abstract

The present invention relates to a computer keyboard having a structure in which only a specific key group can be separated from the keyboard body and replaced with another key group. The present invention relates to a computer keyboard comprising a character key, a function key, and a numeric key group, wherein a key module replacement part is formed by separating any key group among the character key, function key, and numeric key group, and a key different from the separated key group. Is arranged to include a key module mounted on the key module replacement unit.

Description

Computer keyboard whose particular key group is detachable}

The present invention relates to a computer keyboard. More specifically, the present invention relates to a computer keyboard having a structure in which only a specific key group can be separated from the keyboard body and replaced with another key group.

Recently, with the development of computing environment, software has become more specialized and complicated. In contrast, in a graphical user interface (GUI) environment that seeks a more convenient interface, the usage is increasingly complex, and users are having difficulty keeping up with the complicated development of software in the use of various menus and keys. There are many possible causes for this, but one of them is the configuration of the input device which is hardly changed.

In particular, as a computer input device, the keyboard is currently occupying a large position. However, one of the most difficult parts of a computer is the keyboard. This is because the basic principle of sending an input signal to a computer by pressing a specific key, and the arrangement of standardized characters or the arrangement of function keys cannot be arbitrarily changed. Therefore, not only computer hardware but also software development can only be developed in accordance with a standardized keyboard code system, which is a factor that greatly impairs design freedom. In today's OS environment, where multilingual support is becoming increasingly common with the advent of universal code, it is becoming increasingly clear that current input devices are not enough to keep up with these changes.

Of course, there have been many technical improvements of the keyboard itself. However, most of them were only about the structure and appearance of the keys. Instead of a keyboard combining a conventional mechanical switch, the current keyboard structure is made by covering an insulating film on a thin flexible PCB so that only the carbon pattern formed on the PCB is exposed, and pressing the carbon pattern with a conductive rubber key to conduct it. Membrane switch type. The keyboard having such a structure is a structure that most keyboards adopt due to the advantages of low unit cost, excellent assembly and mechanical stability compared to the conventional mechanical switch method.

The inventors have found that if a specific key group can be removed and replaced with another key arrangement while leaving the conventional keyboard structure intact, the present invention can be a keyboard applicable to various computing environments. Invented a keyboard that can be replaced with a key group of or another function group.

Accordingly, it is an object of the present invention to provide a computer keyboard that can separate a particular key group from the keyboard body and replace it with a key group of a different arrangement or function.

Another object of the present invention is to provide a key module which can be replaced with a key group separated from the computer keyboard.

1 is an internal configuration diagram of a general keyboard.

Figure 2 is an external configuration of a typical keyboard.

3 is a perspective view of a keyboard body according to the first embodiment;

4 is a perspective view of a key module according to the first embodiment;

5 is a detailed view of clasp 104 of FIG.

5A is a perspective view of another form of the key module;

FIG. 5B is a perspective view of the key module of FIG. 5A mounted on a keyboard body; FIG.

5C is a perspective view of another form of the key module.

FIG. 5D is a perspective view of the key module of FIG. 5C mounted to the keyboard body; FIG.

6 is a perspective view of a key module according to a second embodiment of the present invention;

Figure 7 is a space bar structure diagram of the key module of Figure 6;

8 is a perspective view of a fully folded key module of FIG.

Fig. 9A is a PCB showing the concept of the third embodiment.

Figure 9b is a perspective view showing a bonding method of the PCB of Figure 9a.

Fig. 10A is an exploded perspective view showing the structure of the keyboard main body.

Fig. 10B is an exploded perspective view showing the configuration of the key module.

11 is a perspective view showing an appearance of a key module.

Fig. 12 is a conceptual view showing the connector portion of the key module.

Figure 13 is a perspective view showing the coupling relationship of the male and female connectors.

14A is an external view of a key module according to the fourth embodiment;

14B is an external view of a keyboard body according to a fourth embodiment;

Fig. 15 is an external view of a key module of a different form from Fig. 14A.

<Description of Drawing Main Parts>

Lower PCB 10, upper PCB 30, key contacts 11 and 31), insulating film 20, through-hole 21, rubber plate 40, elastic portion 41, key array plate 50, Key 51, character key group 100, function key group 200, numeric key group 300, key module replacement unit 110, key contact 101, protruding rail 102, guide groove 102 '), The insertion groove 103, the insertion protrusion 103', the opening groove 106, the latch 104, the locking groove 104 ', the release button 105, the hinge 603, space bar 604 ), Protrusion 605, auxiliary plate 606, inner groove 607, stopper 608, main body PCB 901, key module PCB 902, circuit connection 903, main body connector 904a, key module connector 904b, keyboard body 900a, key module 900b, key arrangement plate 905, upper case 906, rubber plate 907, key module PCB 902, lower case 908, pressing piece ( 909, PCB copper foil pattern 910, connector copper foil pattern 911, push piece groove 912, terminal 913, key module replacement portion (1000a), key module (1000b), primary key module (1000c), boogie module (1000d)

According to the present invention, a key module replacement part formed by separating any key group of the character key, function key, and numeric key group from a general computer keyboard including a character key, a function key, and a numeric key group has different functions from the separated key group. The key is arranged in a new key group is configured to include a key module coupled to the key module replacement unit.

The key module may be configured as a character key group, and the key module replacement unit and the key module are combined by a coupling means. In addition, a fixing means is further included in the key module replacement unit and the key module so that the inserted key module cannot be detached from the key module replacement unit by itself.

In order to explain the computer keyboard according to the present invention, an internal and external configuration of a general computer keyboard will be described. FIG. 1 shows the internal structure of a general keyboard, and is made in such a way that a key is pressed on a key contact pattern by overlapping two flexible PCBs patterned on a key contact. Key contacts 11 and 31 are patterned on the lower PCB 10 and the upper PCB 30, respectively. These PCBs are thin and flexible flexible PCBs, and when the contacts 11 and 31 of the lower layer PCB 10 and the upper layer PCB 30 come into contact with each other, the corresponding circuits are connected to allow a specific key code to be input to a computer. An insulating film 20 is provided between the lower PCB 10 and the upper PCB 30. The through hole 21 is formed in the insulating film 20 at the same position as the key contacts 11 and 31 to insulate the regions other than the key contacts 11 and 31 of the PCB from each other. The rubber plate 40 is raised on the upper PCB 30. The rubber plate 40 is formed with a convex elastic portion 41 at the same position as each contact point of the PCB to soften the pressing operation of the key 51. A plurality of keys 51 are arranged in a key arrangement plate 50 made of metal or synthetic resin.

Figure 2 shows the appearance of a general keyboard, in the center of the various character keys, numeric keys, enter, Chinese character conversion keys, etc. are gathered to form the character key group 100, and around the various function keys (F1 to F12, Esc, A function key group 200 consisting of scrolls) and movement keys (Home, End, arrow keys, etc.) are arranged, and on the right side, a numeric key group composed of separate numeric keys and operators (+,-, *, /), etc. 300 is arranged.

The basic concept of a computer keyboard according to the present invention is to separate a key module consisting of a specific key group from the keyboard body in the above-described computer keyboard, and replace a new key group having a different function instead of the separated key group. .

The key module separation unit of the key group to be separated can be considered in various ways. For example, the upper and lower PCBs 30 and 10 of FIG. 1 may be left in the keyboard body and separated from other parts, or the upper and lower PCBs 30 and 10 may be attached under the key module of the key group. Whether or not to replace them together depends on the overall structure or design strategy of the keyboard. This is obvious to those of ordinary skill in the art.

The present invention replaces a key module in which a key arrangement is newly formed by separating a specific key group from the keyboard body while using the conventional basic keyboard internal structure as it is. That is, a new key group defined according to a specific program may be replaced instead of a key group separated from the keyboard main body, thereby providing a differentiated keyboard for each specific program. This new key group uses a key contact 31 of the keyboard body as a key input means, but is defined specifically by the computer program to be used so that it functions differently from a separate key group (ordinary key group). It is programmed to have a key array or key configuration.

Which key group to replace is a matter for the implementer to decide arbitrarily according to the application. For example, to realize a program keyboard that uses a language other than the standard languages (basically Korean and English) (Japanese, Russian, etc.), replacing a new character key group with a specially defined key sequence in the program You can provide an appropriate keyboard for each language. Meanwhile, the number key group 300 on the right side can be separated and a key module defined by another key arrangement can be attached to this portion. The newly defined key module will usually consist of a button specifically defined for the game.

Indeed, the present invention may be practiced in such a way that the program vendor sells the program together with the program-specific key module. For example, a computer user having a keyboard that can separate a specific key group as in the present invention can utilize the purchased program 100% by replacing and installing a dedicated key module provided with the program when purchasing the program. Currently, every computer operating system or program other than the built-in program comes with a dedicated drive file or a dedicated hardware card. According to the present invention, it is possible to provide a dedicated key module according to the program.

This means that the program can be used efficiently, simplifying the work of the program (because the design freedom is reduced in order to program the key code of a general keyboard), and preventing illegal copying (the program can not operate normally without a dedicated key module). And so on).

Example 1

The technical spirit of the present invention as described above may be embodied by the following embodiments. This embodiment relates to a structure for separating the character key group from the keyboard body, Figure 3 is a perspective view of the keyboard body showing a state in which the key module is separated, Figure 4 is a new key to be replaced and attached to the keyboard separated key module Represents a key module. In the first embodiment, the separation unit of the key module is set only up to the key array plate (50 in FIG. 1) and the rubber plate (40 in FIG. 1) below. The flexible PCB and the insulating film (10, 20, 30 in FIG. 1) Is not separated from the keyboard body. That is, the key group separation method in terms of mechanical.

In the keyboard main body shown in FIG. 3, some key groups are separated and a key module replacement unit 110 capable of coupling a new key module is formed. The key module replacement unit 110 is the same as the conventional keyboard structure up to the key contact 101, and is recessed as a whole so as to separate and combine the key module assembled thereon. It can be seen that a plurality of key contacts 101 are located on the surface where the key module is separated.

The arrangement of each key in the key module of Fig. 4 is predefined by the program which will use this key module. Therefore, by using the key contact 101 of the existing keyboard in hardware, it is possible to generate a key code suitable for the program to be used. It may be a multilingual dial, or a special key required for a specific program. Therefore, depending on the design, there may be a key contact which is not used among the key contacts 101. This will be apparent to those skilled in the art to which the present invention pertains.

The coupling structure between the key module replacement unit 110 and the key module will be described. Basically, the key module is slidably coupled to the key module replacement unit 110. Sliding type is more stable by widening the contact surface with the keyboard body, can give the same key sense as the existing keyboard, and can distribute the force to a wider surface to enhance the durability.

To this end, as shown in FIG. 3, a plurality of protruding rails 102 are formed on the side of the portion of the key module replacement unit 110 to which the key module is coupled, and the protruding rails 102 of the key module of FIG. A plurality of guide grooves 102 'to be guided are formed. In addition, the insertion groove 103 is formed on the inner side of the key module replacement unit 110 so that the key module can be accurately coupled to the key module replacement unit 110, and the insertion protrusion 103 on the front end side of the key module. ') Is formed to be inserted into the insertion groove (103). As a result, the key module can be accurately inserted into the key module replacement unit 110.

3 and 4, the protruding rails 102 and the guide grooves 102 'are formed on one side, and the opening grooves 106 are formed in a part of the guide grooves 102'. It is possible to insert the key module from the point where the protruding rail 102 is located in the opening groove 106 without inserting from the front end. Such a structure is also well known to those skilled in the art.

Meanwhile, the latch 104 is formed at the rear of the key module of the key module replacement unit 110 so that the inserted key module cannot be detached from the main body by itself. Clasp 104 is formed in the 'c' shape on the bottom surface 501 of the key module replacement unit 110 as shown in Figure 5 is formed so that the cut portion 502 can be moved elastically downward, The upwardly protruding surface is formed such that the inner surface 503 of the key module replacement unit 110 is vertical but the outer surface 504 has a gentle inclination. On the contrary, the locking groove 104 '(but not shown in Fig. 4) is formed at the rear lower surface of the key module at the position corresponding to the latch 104. The locking groove 104 'has a structure to prevent the key module from being pulled out by being caught by the latch 104 of the key module replacement unit 110. When the key module is pushed from the side, the latch 104 enters downwards. The bottom surface of the key module can be easily moved according to the inclined surface 504 of the clasp 104, but when the key module is pulled out, the vertical surface 503 of the clasp 104 is caught in the locking groove 104 'to prevent it from falling out. It can be formed as. This coupling structure is well known and can be easily implemented by those skilled in the art. With this structure, the key module cannot be pulled out of the main body by itself, but in order to remove the key module from the main body, it is necessary to loosen the engagement state between the latch 104 and the locking groove 104 'so that the key module can be inserted into the locking groove 104' of the key module. The release button 105 was prepared.

Release button 105 is assembled through the spring inside the key module is usually popped up, but when pressed to press the latch 104 coupled to the locking groove (104 ') from above the latch 104 and the locking groove ( 104 ') can be released.

According to this embodiment, instead of the character key group, a specially defined new key group can be replaced and mounted on the key module replacement unit (110 in FIG. 3) as a key module. For example, in the case of a word processor program, if you replace a new key module with a character key arrangement specifically required by the program, you can use this program more efficiently and design the program much more freely. I can lose.

In the case of a game program, the original key group can be replaced with a joystick or a push button required for the game. Examples of this are shown in FIGS. 5A and 5B. The layout of the joysticks and pushbuttons arranged on the outside is quite different from the original character key group arrangement, but the position of the key contacts on the internal PCB is the same. This is because the game program is written according to the key matrix circuit that is already designed. 5c and 5d show another application example. By defining a new key arrangement suitable for a game or other special program, a new key module can be created and replaced with a key module replacement part of the keyboard main body to efficiently execute a special program.

Example 2

In the second embodiment, the coupling relationship between the key module replacement unit 110 and the key module is the same as the first embodiment. Embodiment 2 is to provide a structure that can be folded for carrying the separated key module. Character key groups are long (about 30 cm). Therefore, the size of the key module itself is large, there is a disadvantage in that it is cumbersome to store or carry.

The second embodiment provides a structure in which the key module can be folded in half to avoid this. In order to realize this, as shown in FIG. 6, the key module is divided into two parts 601 and 602 based on the center of the key module and both sides are joined by the hinge 603. However, since the space bar 604 is located at the center of the key module, it is difficult to fold both sides 601 and 602 in half.

So, in order to solve this, the coupling structure of the space bar 604 is changed as shown in FIG. That is, the protrusion 605 formed under the space bar 604 is pressed together with the stopper 608 to be inserted into the inner groove 607 of the auxiliary plate 606. Since the protrusion 605 may linearly move and rotate along the inner groove 607 of the auxiliary plate 606, the space bar 604 may also linearly move and rotate with respect to the auxiliary plate 606. Therefore, when the auxiliary plate 606 is fixed to the key module center line to be folded, the space bar 604 can be rotated 90 degrees in any direction and pushed in one direction when the key module is folded. In this way, the state of the fully folded key module is shown in FIG.

Example 3

In the third embodiment, the separation unit of the key module is extended to the flexible PCB and the insulating film (10, 20, 30 in Fig. 1), and is separated from the keyboard body to the PCB. That is, the key group separation method in terms of circuit. In Examples 1 and 2, the presence of the circuit PCB was a factor that prevented the expandability of the removable key module. Due to the PCB embedded in the keyboard body, the range of deformations that the removable key module can have is limited by the circuit configuration. To eliminate this limitation and fit the circuit PCB itself to the removable keyboard for the possibility of full diversity and expandability. It can be separated and combined. Therefore, the third embodiment, unlike the first embodiment, should include a structure capable of separating the PCB. The rest of the configuration and effects are the same as in the first embodiment.

9A and 9B show that the PCB is separated to show the basic concept of the third embodiment. It can be seen that the main body PCB 901 mounted on the keyboard main body and the key module PCB 902 mounted on the key module are separated. Here, the main body PCB 901 will be described as including an upper and lower layer PCB and an insulating film, and the key module PCB 902 also includes an upper and lower layer PCB and an insulating film. Since the key module PCB 902 is to be finally connected to the main body PCB 901, the circuit connection portion 903 is provided in the third embodiment. Referring to Fig. 9B, it can be seen that connectors 904a and b are used as the circuit connecting portion 903. It can be seen that the main body connector 904a mounted to the connection part of the main body PCB 901 and the key module connector 904b mounted to the connection part of the key module PCB 902 are connected to each other and are connected in a circuit.

10A and 10B are an overall conceptual view of the third embodiment, in which FIG. 10A is an exploded perspective view of the keyboard body and FIG. 10B is an exploded perspective view of the key module. Unlike the first embodiment described above, the upper and lower PCBs and the insulating film 902 are included in the key module 900b.

The key module 900b includes a key arrangement plate 905, an upper case 906, a rubber plate 907, a key module PCB 902, and a lower case 908. The keyboard body 900a is configured in the same manner as the key module. However, the key module replacement portion is formed at a position where the key module 900b may be replaced. According to the third embodiment, since the circuit part can be replaced, the design flexibility of the new key group can be further improved.

The connector structure will be described in detail with reference to FIG. 11 shows how the connector 904b is mounted on the key module 900b configured as shown in FIG. 10B. As can be seen in Figure 4, the side of the key module guide groove 102 'and the opening groove 106 is formed, it can be slidably coupled with the key module replacement portion of the keyboard body. Since this is described through the first embodiment, description thereof is omitted.

11, the key module PCB 902 is positioned between the upper case 906 and the lower case 908 of the key module 900b. The key module PCB 902 has already been described as including the upper and lower layer PCB and the insulating layer shown in FIG. The connection portion of the key module PCB 902 is tightened and screwed between the key module connector 904b and the pressing piece 909.

A concrete description will be given with reference to FIG. In Fig. 12, the PCB copper foil pattern 910 is exposed on the upper surface of the connection part of the key module PCB 902, and the connector copper foil pattern 911 is formed on the bottom surface of the key module connector 904b so that both copper foil patterns The key module connector 904b is screwed between the upper case 906 and the lower case 908 to be in close contact. In this embodiment, since the key module connector 904b is set to a male connector, the PCB can be easily manufactured by processing.

Since the pressing piece 909 is sandwiched between the lower case 908 and the key module PCB 902 such that the PCB copper foil pattern 910 and the connector copper foil pattern 911 are completely in contact with each other, the pressing piece 909 is made of a material such as rubber or soft synthetic resin. It is preferable. The lower case 908 of FIG. 11 has a pressing piece groove 912 into which the whole pressing piece 909 can be inserted. Its role is to prevent the floating between the lower case 908 and the key module PCB 902 due to the pressing piece 909. The depth of the pressing piece groove 912 is smaller than the thickness of the pressing piece 909 and should be formed to an extent that allows the lifting between the lower case 908 and the key module PCB 902.

On the other hand, the connector 904a of the keyboard body is also mounted similarly to the key module connector 904b, and therefore a separate description will be omitted. An example of the main body connector 904a and the key module connector 904b is shown in FIG. In the present embodiment, since the main body connector 904a is set as a female connector, unlike the key module connector 904b, the main body connector 904a cannot be simply formed as a PCB, and the body is formed by injection molding or the like. (913) must be inserted differently. This is a known technical matter to those skilled in the art. Therefore, the type and structure of the connector are optional design matters, and are not limited only to the matters disclosed in this embodiment.

As described above, according to the third embodiment, since the circuit PCB can be separated, it is possible to provide more expandability and can be used for more various purposes. Although the case of the membrane PCB has been described as an embodiment, the technical idea of the present invention can be applied to a rigid PCB such as epoxy or phenol PCB in addition to the membrane PCB.

Since the circuit can be extended, the removable key module does not have to have the same design or size as a conventional keyboard, so it can be extended to suit various software. For example, in the case of a simulation game, a more realistic key arrangement can be configured, and in a network game, a function key can be designed in addition to a basic keyboard layout for chatting. This extensibility is possible in word processors or general programs other than game programs, and the basic keyboard can be expanded as it is, or a new keyboard can be designed and arranged.

Example 4

In the case where the key group can be separated including the PCB as in the third embodiment, the fourth embodiment can be realized. The fourth embodiment is configured as shown in Figs. 14A and 14B. That is, in the key module 1000b of the fourth embodiment, a new subkey module 1000d is attached to the main key module 1000c as shown in FIG. This is because the function of the keyboard can be expanded by adding the subkey module 1000d.

The key module 1000b to which the subkey module 1000d is attached is mounted on the key module replacement unit 1000a of the keyboard body to replace the key group. It can be seen that the key module replacement unit 1000a extends to the left to accommodate the key module 1000b including the buki module 1000d. Since the coupling structure between the key module replacement unit 1000a and the key module 1000b is the same as that described with reference to FIGS. 3 and 4, a description thereof will be omitted.

The coupling structure between the primary key module 1000d and the primary key module 1000c is similar to that described with reference to FIGS. 11 and 13. In other words, in Figs. 11 and 13, the PCBs on both sides are coupled to each other through the connectors 904a and 904b when the key module 900b is coupled to the keyboard body. That is, by attaching a connector to the PCB (not shown) in the buki module 1000d and the PCB (not shown) of the primary key module 1000c and interconnecting them, the primary key module 1000c may be attached to the primary key module 1000c.

Fig. 15 shows a key module equipped with two pairs of joysticks and pushbuttons. The fourth embodiment provides a key module which can easily attach additionally necessary keys or other input means, so that execution of a specific program can be performed more efficiently than the method of the third embodiment. It can provide flexibility in writing programs without limitation.

As described above, the technical idea of the present invention and specific embodiments thereof are described, but the present invention is not limited to the above description. For example, instead of separating a character key group, a function key group or a numeric key group may be separated, and a new key module may be equipped with a direction switching means (for example, a joystick) or a special button to utilize a predetermined program. You can also improve your sex. Accordingly, the technical scope and spirit of the present invention may be modified and practiced by those skilled in the art.

The present invention can be utilized for various purposes to create various effects. As mentioned above, when a multilingual input is required on a computer, the language can be entered efficiently by replacing the appropriate key module according to the language.

In addition, in a CAD program or a special utility program, when a non-uniform instruction is used, a task can be efficiently performed by using a key module optimized for the program.

It can be used for educational programs. By using the key module suitable for the age group of the program, the effect of the educational program can be maximized. For example, a children's education program can provide an interface suitable for children's educational purposes by arranging only the keys needed by the children. A variety of educational programs are available.

It can be used for games. Considering that various game programs have become more colorful in terms of interfaces and operability has become more complicated in recent years, users are facing a situation in which they have to take more and more complicated key operations. However, using the replaceable key module according to the present invention, users can enjoy a more comfortable and interesting game through a user interface optimized for a game provided by a game company.

Program piracy can be prevented. Since the program company can supply a key module that is suitable or unique to the program sold by the program company, it is possible to prevent the illegal copying of the program because a simple copy of the program cannot be used.

Claims (22)

On a computer keyboard that consists of a group of letters, functions, and numeric keys, A key module replacement unit formed by separating any key group among the character key, function key and numeric key group; And a key module arranged differently from a separate key group, and including a key module mounted on the key module replacement unit. The computer keyboard of claim 1, wherein the key module includes a character key group. In claim 1, And a coupling means for coupling the key module replacement portion and the key module. In the coupling means of claim 3, A protruding rail 102 is formed on the side of the key module replacement unit 110, and a guide groove 102 ′ through which the protruding rail 102 is guided is formed on the side of the key module. Insertion groove 103 is formed on the inner side of the key module replacement unit 110 so that the key module replacement unit 110 and the key module can be accurately coupled, the insertion protrusion 103 'on the front end side of the key module. A computer keyboard that can replace a particular key group, characterized in that is formed. The computer keyboard of claim 1, wherein the key module replacement unit and a fixing unit are further included in the key module to prevent the inserted key module from being detached from the key module replacement unit by itself. The method of claim 5, wherein the fixing means Clasp 104 formed at the rear of the key module of the key module replacement unit 110 is inserted, A catching groove 104 'formed at a position corresponding to the catch 104 on the bottom surface of the key module, In order to remove the key module from the key module replacement unit 110, characterized in that consisting of the release button 105, which releases the engagement state of the latch 104 and the locking groove 104 ', it is possible to replace a specific key group Computer keyboard. In claim 6, The clasp 104 is formed to protrude upward on the bottom surface 501 of the key module replacement unit 110 so that the inner surface 503 of the protruding surface is vertical but the outer surface 504 forms a gentle slope, The release button 105 is to press the latch 104 coupled to the locking groove 104 'from the top, characterized in that to release the engagement state of the clasp 104 and the locking groove 104', Computer keyboard with replaceable key groups. The method of claim 1, wherein the key module Split into two parts that can be folded in half, Wherein said divided portions are joined by hinges. The method of claim 8, wherein the key module An auxiliary plate 606 having an inner groove 607 into which the space bar 604 presses a key contact is inserted, and a stopper coupled with the protrusion 605 so that the protrusion 605 is inserted into the inner groove 607. Including 608, The sub-plate 606 is fixed along the centerline of the key module to be folded by a hinge, and when the key module is folded, the space bar 604 can be rotated 90 degrees to push in one direction. Replaceable computer keyboard. 8. A computer keyboard as claimed in any preceding claim, comprising circuit connection means for connecting the keyboard body and the internal circuit PCB of the key module. The computer keyboard of claim 10, wherein the circuit connection means is a pair of connectors connecting the PCB copper foil pattern of the keyboard body and the PCB copper foil pattern of the key module to each other. In claim 11, the circuit connection means The PCB copper foil pattern 910 is exposed on the upper surface of the connection part of the key module PCB 902, and the connector copper foil pattern 911 is formed on the bottom surface of the key module connector 904b so that both copper foil patterns closely adhere to each other. A first connector screwing 904b between the upper case 906 and the lower case 908, And a second connector connected to the PCB copper foil pattern of the keyboard body, the second keyboard being connected thereto. The computer keyboard of claim 10, wherein the key module is a main key module (1000c) and a sub-key module (1000d) in which a separate key group is arranged is additionally attached thereto. The computer keyboard of claim 13, further comprising second circuit connection means for connecting the circuit PCB of the primary key module 1000c and the circuit PCB of the subkey module 1000d. The method of claim 14, wherein the second circuit connection means is a pair of connectors that connect the PCB copper foil pattern of the primary key module 1000c and the PCB copper foil pattern of the subkey module 1000d to each other. Computer keyboard. On a computer keyboard consisting of a group of letter keys, function keys and numeric keys, Key module replacement unit formed by separating any key group of the character key, function key, numeric key group, A key module in which a character key group is separated from the key module replacement unit and another key group is replaced instead of the separated character key group; And a key module in which the other key group to be replaced is arranged is divided into two parts so that they can be folded in half, and these divided parts are joined by a hinge. delete delete The method of claim 16, wherein the key module An auxiliary plate 606 having an inner groove 607 into which the space bar 604 presses a key contact is inserted, and a stopper coupled with the protrusion 605 so that the protrusion 605 is inserted into the inner groove 607. Including 608, The auxiliary plate 606 is fixed along the center line of the key module to be folded by a hinge, and when the key module is folded, the space bar 604 can be pushed in one direction by rotating 90 degrees. The key module as claimed in claim 16, wherein the key module is a main key module (1000c), and a sub-key module (1000d) in which a separate key group is arranged is additionally attached thereto. The key module of claim 20, further comprising circuit connection means for connecting the circuit PCB of the primary key module 1000c and the circuit PCB of the subkey module 1000d. The key module as set forth in claim 21, wherein the circuit connection means is a pair of connectors that connect the PCB copper foil pattern of the primary key module 1000c and the PCB copper foil pattern of the subkey module 1000d to each other.