Plug-in terminal plate and air conditioner

Abstract

The utility model relates to terminal board technical field, more particularly to a kind of plug-in sheet type terminal board and air conditioner.The plug-in sheet type terminal board includes female component and several subassemblies, female component includes female base and several female inserts, and subassembly is detachably connected between female component;Female component includes female base and at least one female insert, and female insert is located in female base;Subassembly includes subbase and subinsert, and subinsert is located in subbase;When subbase is connected to female base, subinsert establishes electrical connection with a female insert.The air conditioner includes electric control module, and electric control module applies the above plug-in sheet type terminal board.The plug-in sheet type terminal board and air conditioner provided by the utility model are strong in versatility, few in variety, high in selection efficiency, low in cost and less in material waste.

Description

Technical Field

[0001] This utility model relates to the field of terminal board technology, and more specifically, to a plug-in type terminal board and an air conditioner. Background Technology

[0002] A terminal block is an electronic component used for electrical connections. It connects different electrical devices and circuits, allowing current to be transmitted between them to form a complete electrical circuit. Pulley-type terminal blocks are classified into two-position and multi-position terminal blocks according to the number of connections, with each connection position having one, two, or more pulleys.

[0003] The number of connections and the number of prongs on each connection position of existing plug-in terminal blocks are fixed and cannot be changed according to changes in the usage scenario, resulting in poor versatility. When using them, it is necessary to determine the target number of connections and the target number of prongs on each connection position of the plug-in terminal block according to actual needs, and select a plug-in terminal block that meets the requirements from a large number of terminal blocks based on the determined results. This results in low selection efficiency and high procurement and storage costs. Utility Model Content

[0004] The purpose of this utility model is to provide a plug-in terminal block and an air conditioner to alleviate the technical problems of poor versatility, low selection efficiency and high cost of plug-in terminal blocks in the prior art.

[0005] The plug-in terminal block provided by this utility model is characterized in that it includes a mother component and a daughter component, wherein the daughter component and the mother component are detachably connected.

[0006] The mother component includes a mother base and at least one mother insert, the mother insert being disposed on the mother base; the daughter component includes a daughter base and a daughter insert, the daughter insert being disposed on the daughter base.

[0007] When the sub-base is connected to the mother base, the sub-plug establishes an electrical connection with one of the mother plugs.

[0008] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0009] After determining the target number of connections on the plug-in terminal block and the target number of plugs on each connection position, the total target number of plugs is further determined. Then, a mother component with the target number of connections can be selected. If the target number of plugs on each connection position is 1, no sub-components need to be selected; the mother component alone can serve as the required plug-in terminal block. If the target number of plugs on a connection position is greater than 1, suitable sub-components are selected to ensure that the number of mother and child plugs on each connection position reaches the total target number of plugs required for that connection position, thus completing the preparation work.

[0010] Taking one connection position of a plug-in terminal block as an example, when there are two or more target plug-in positions, a suitable sub-assembly can be selected, and its sub-base can be connected to the female base. After the connection is established, the sub-plug and the female plug at that connection position can be electrically connected. In this way, the assembly of the female component and the sub-component at that connection position can be completed. Other connection positions of the plug-in terminal block can be assembled in the same way.

[0011] Therefore, the plug-in terminal block provided by this utility model can be configured in different ways to obtain different models of plug-in terminal blocks, adapting to different application scenarios. This not only improves versatility but also reduces the number of types, greatly improving selection efficiency and reducing procurement and warehousing costs. Furthermore, the base height of each connection position of the plug-in terminal block is adapted to the number of plugs, avoiding material waste.

[0012] Preferably, as one possible implementation, the sub-components are in several groups.

[0013] Each of the sub-components can be detachably connected at both ends to the mother component and another sub-component, and / or each of the sub-components can be detachably connected at both ends to two other sub-components, so that the connected sub-plugs can establish an electrical connection with the corresponding mother plug.

[0014] The benefits are that more models of plug-in terminal blocks can be assembled, which can be adapted to more application scenarios, are more versatile, have fewer types, further improve selection efficiency, and reduce costs.

[0015] Preferably, as one possible implementation, the mother base is provided with a mother slot or a mother block, and the child base is provided with a child slot and a child block.

[0016] The female card slot can engage with the female card block, or the female card block can engage with the female card slot; the female card slot on any of the sub-bases can engage with the female card block on another sub-base.

[0017] The advantages are that it is easy to operate and install, and can improve assembly efficiency.

[0018] Preferably, as one possible implementation, the groove wall of the female card slot or the female card block is provided with a female groove, the child card block is provided with a first child protrusion, the groove wall of the child card slot is provided with a first child groove, and the female groove and the first child groove are respectively able to cooperate with the first child protrusion;

[0019] Alternatively, the groove wall of the female card slot or the female card block may be provided with a female protrusion, the female card block may be provided with a second female groove, the groove wall of the female card slot may be provided with a second female protrusion, and the female protrusion and the second female protrusion may respectively cooperate with the second female groove.

[0020] The beneficial effect is that it can ensure the reliability of the connection between the sub-base and the mother base, as well as between the sub-bases.

[0021] Preferably, as one possible implementation, the sub-plug can be snapped into the female plug, and / or any two of the sub-plugs can be snapped into each other.

[0022] The advantages are that it is easy to operate and install, and can improve assembly efficiency.

[0023] Preferably, as one possible implementation, the female insert has a female locking hole or a female locking hook, and the male insert has a male locking hook and a male locking hole.

[0024] The female card hole can engage with the female card hook, or the female card hook can engage with the female card hole; the female card hole on any of the female inserts can engage with the female card hook on another female insert.

[0025] The beneficial effect is that it enables the snap-fit ​​connection between the sub-plate and the female plate, as well as the snap-fit ​​connection between any two sub-plates.

[0026] Preferably, as one possible implementation, the sub-base is provided with a limiting groove, the sub-insertion is provided with a limiting plate, and the limiting groove and the limiting plate are inserted into each other; the end face of the mother base can cooperate with the limiting groove to prevent the limiting plate from moving; the end face of any of the sub-bases can cooperate with the limiting groove on another sub-base to prevent the limiting plate from moving.

[0027] The advantages are that it can lock the sub-insert and the sub-base, making it simple to operate, easy to install, and reliable.

[0028] Preferably, as one possible implementation, the female base is provided with a limiting hole and a base positioning hole, and the female insert is inserted into the limiting hole; a nut is installed in the base positioning hole, the female insert is provided with an insert positioning hole, the insert positioning hole is engaged with a bolt, and the bolt is engaged with the nut.

[0029] The beneficial effect is that it can lock the female insert and the female base, which is simple to operate, easy to install and reliable.

[0030] The air conditioner provided by this utility model includes an electronic control module, which uses the above-mentioned plug-in terminal block.

[0031] The beneficial effect is that the plug-in terminal board in the air conditioner provided by this utility model has strong versatility, fewer types, improves selection efficiency, and reduces costs. Attached Figure Description

[0032] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0033] Figures 1a-1c Schematic diagrams of three types of plug-in terminal blocks in related technologies;

[0034] Figure 2 A front view of the plug-in terminal block provided in an embodiment of this utility model;

[0035] Figure 3 for Figure 2 A cross-sectional view of the EE structure;

[0036] Figure 4 A schematic diagram of the plug-in terminal block provided in an embodiment of this utility model from another perspective;

[0037] Figure 5 This is a schematic diagram of the structure of the mother component in the plug-in terminal block provided in an embodiment of the present utility model;

[0038] Figure 6 A schematic diagram of the structure of the mother base in the plug-in terminal block provided in this embodiment of the utility model;

[0039] Figure 7 A cross-sectional view of the mother base in the plug-in terminal block provided in an embodiment of this utility model;

[0040] Figure 8 This is a schematic diagram of the structure of the female insert in the insert-type terminal block provided in an embodiment of the present utility model;

[0041] Figure 9 This is a schematic diagram of the structure of a sub-component in a plug-in terminal block provided in an embodiment of the present invention;

[0042] Figure 10 This is a schematic diagram of the structure of the sub-base in the plug-in terminal block provided in an embodiment of the present utility model;

[0043] Figure 11 A cross-sectional view of the sub-base in the insert-type terminal block provided in this embodiment of the utility model;

[0044] Figure 12 This is a schematic diagram of the structure of the sub-plug in the plug-in terminal block provided in an embodiment of the present utility model;

[0045] Figures 13a-13c A schematic diagram of the structure of the insert-type terminal block provided in the embodiment of this utility model.

[0046] Explanation of reference numerals in the attached figures:

[0047] 100-Female component; 110-Female base; 111-Female slot; 112-First female groove; 113-Limiting hole; 114-Base positioning hole; 115-Fixing hole; 116-Positioning post; 117-Silicone printing; 120-Female insert; 121-Female slot; 122-Insert positioning hole; 130-Bolt; 140-Nut; 150-Washer;

[0048] 200-Sub-component; 210-Sub-base; 211-Sub-block; 212-Sub-slot; 213-First sub-protrusion; 214-First sub-groove; 215-Limiting groove; 220-Sub-insertion; 221-Sub-hook; 222-Sub-hole; 223-Limiting plate. Detailed Implementation

[0049] In related technologies, the number of connection positions and the number of prongs on each connection position of a blade-type terminal block are fixed. Two blade-type terminal blocks with different numbers of connection positions or different numbers of prongs on a certain connection position belong to different models, resulting in poor versatility, low selection efficiency, and high cost. Taking a terminal block with two connection positions as an example, it can be divided into several models according to the number of prongs on any connection position. For example, when both connection positions have one prong, it is a single-blade terminal block. The structure of this model of blade-type terminal block is as follows: Figure 1a As shown; when both connection positions have two insert slots, it is a double insert terminal block. The structure of this type of insert terminal block is as follows: Figure 1b As shown; when one connection position has 3 insert slots and the other connection position has 2 insert slots, it is a triple or double insert terminal block. The structure of this type of insert terminal block is as follows. Figure 1c As shown, by Figure 1c As shown in the structure, although the number of inserts on the No. 2 connection position is less than the number of inserts on the No. 1 connection position, the height of the base corresponding to the No. 2 connection position is the same as the height of the base corresponding to the No. 1 connection position, resulting in unnecessary material waste.

[0050] Based on this, the present invention provides a plug-in terminal block, which can be combined in different ways to obtain different structures to adapt to different scenarios.

[0051] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0052] The present invention will be further described in detail below through specific embodiments and in conjunction with the accompanying drawings.

[0053] See Figures 2-12 As shown, this embodiment provides a plug-in type terminal block, which includes a mother component 100 and a sub-component 200, and the sub-component 200 is detachably connected to the mother component 100.

[0054] The mother assembly 100 includes a mother base 110 and at least one mother insert 120, the mother insert 120 being disposed on the mother base 110; the daughter assembly 200 includes a daughter base 210 and a daughter insert 220, the daughter insert 220 being disposed on the daughter base 210; when the daughter base 210 is connected to the mother base 110, the daughter insert 220 establishes an electrical connection with a mother insert 120.

[0055] After determining the target number of connection bits for the plug-in terminal block and the target number of plug-in bits on each connection bit, the total target number of plug-in bits is further determined. Then, a mother component 100 with the target number of connection bits can be selected. If the target number of plug-in bits on each connection bit is 1, then there is no need to select a sub-component 200, and the mother component 100 alone can serve as the required plug-in terminal block. If there is a connection bit with a target number of plug-in bits greater than 1, then a suitable sub-component 200 is selected so that the number of mother plug-in bits 120 and daughter plug-in bits 220 on each connection bit reaches the total target number of plug-in bits required for that connection bit, thus completing the preparation work.

[0056] Taking one connection position of a plug-in terminal block as an example, when there are two or more target plug-in positions, a suitable sub-component 200 can be selected, and its sub-base 210 can be connected to the mother base 110. After the two are connected, the sub-plug 220 can establish an electrical connection with the mother plug 120 at the connection position. In this way, the assembly of the connection position of the mother component 100 and the sub-component 200 can be completed. Other connection positions of the plug-in terminal block can also be assembled in the same way.

[0057] Therefore, the plug-in terminal block provided in this embodiment can be configured in different ways to obtain different models of plug-in terminal blocks, adapting to different application scenarios. This not only improves versatility but also reduces the number of types, increases selection efficiency, and lowers procurement and warehousing costs. Furthermore, the base height of each connection position of the plug-in terminal block is adapted to the number of plugs, avoiding material waste.

[0058] Preferably, the sub-components 200 can be configured as several groups. Both ends of any sub-component 200 can be detachably connected to the mother component 100 and another sub-component 200, respectively. That is, while any sub-component 200 is connected to the mother component 100, it can also be connected to another group of sub-components 200. The sub-plugs 220 in the two connected groups of sub-components 200 can establish an electrical connection and can also establish an electrical connection with the corresponding female plugs 120 on the mother component 100. Alternatively, both ends of any sub-component 200 can be detachably connected to two other sub-components 200, and three adjacent groups of sub-components 200 can establish an electrical connection and can also establish an electrical connection with the corresponding female plugs 120 on the mother component 100.

[0059] Before actual assembly, the required number of sub-components can be selected based on the target number of prongs on each connection position of the plug-in terminal block to complete the preparation work. If the target number of prongs on a connection position is greater than 2, after installing one set of sub-components 200 onto the corresponding connection position of the mother component 100, another set of sub-components 200 is installed onto the already assembled sub-components 200. For other sub-components 200, the same steps are followed to install them onto the previous assembled sub-components 200, until the total number of prongs on that connection position (the sum of the number of mother prongs and the number of child prongs) reaches the required number of prongs. Other connection positions of the plug-in terminal block can also be assembled in the same way, thereby assembling more models of plug-in terminal blocks, adapting to more application scenarios, with greater versatility, fewer types, further improving selection efficiency, and reducing costs.

[0060] Preferably, the sub-base 210 and the mother base 110 can be configured to snap together. This simplifies the operation and facilitates installation when assembling the sub-base 210 onto the mother base 110, thus improving assembly efficiency. Correspondingly, any sub-base 210 can be configured to snap together with another sub-base 210. This also simplifies the operation and facilitates installation when assembling another sub-base 210 onto a sub-base 210, further improving assembly efficiency.

[0061] A female slot 111 or a female locking block is formed on the female base 110, and a female locking block 211 and a female slot 212 are provided on the female base 210. When the female slot 111 is provided on the female base 110, the female slot 111 is configured to engage with the female locking block 211; when the female locking block is provided on the female base 110, the female locking block is configured to engage with the female slot 212. At the same time, the first female slot 212 on any female base 210 is configured to engage with the first female locking block 211 on another female base 210. In this way, the engagement between the female base 210 and the female base 110, as well as the engagement between any female base 210 and another female base 210, can be realized.

[0062] As one possible implementation, a female groove 112 is formed on the groove wall or female block of the female slot 111 of the female base 110, a first sub-protrusion 213 is provided on the sub-block 211 of the sub-base 210, and a first sub-groove 214 is formed on the groove wall of the first sub-slot 212. By setting the first female groove 112 and the first sub-groove 214 to be able to cooperate with the first sub-protrusion 213 respectively, the reliability of the connection between the sub-base 210 and the female base 110, and between the sub-bases 210 and each other, can be guaranteed. As an alternative, a female protrusion can be provided on the groove wall or female block of the female slot 111 of the female base 1110, and a second sub-groove can be provided on the sub-block 211 of the sub-base 210. A second sub-protrusion can be provided on the groove wall of the sub-slot 212. The first female protrusion and the second sub-protrusion are configured to be able to cooperate with the second sub-groove, which can also ensure the reliability of the connection between the sub-base 210 and the female base 110, as well as between the sub-bases 210 and each other.

[0063] Furthermore, the sub-pendant 220 can be configured to snap into the female pendant 120. This allows the sub-pendant 220 to automatically snap into the female pendant 120 during the connection process between the sub-base 210 and the female base 110, improving assembly efficiency. Correspondingly, any sub-pendant 220 can be configured to snap into another sub-pendant 220. This allows the two sub-pendants 220 to automatically snap into each other during the connection process between the two sub-bases 210, further improving assembly efficiency.

[0064] A female locking hole 121 or a female locking hook is provided on the female insert 120, and a female locking hook 221 and a female locking hole 222 are provided on the female insert 220. When the female insert 120 has a female locking hole 121, the female locking hole 121 is configured to engage with the female locking hook 221; when the female insert 120 has a female locking hook, the female locking hook is configured to engage with the female locking hole 222. Simultaneously, the female locking hole 222 on any one of the female inserts 220 is configured to engage with the female locking hook 221 on another female insert 220. In this way, the engagement of the female insert 220 with the female insert 120, as well as the engagement of any two female inserts 220, can be achieved.

[0065] Preferably, a limiting groove 215 can be formed on the sub-base 210, and a limiting plate 223 can be provided on the sub-insertion piece 220. The limiting groove 215 and the limiting plate 223 are inserted and matched. The end face of the mother base 110 is set to be able to match the limiting groove 215 to prevent the movement of the limiting plate 223 inserted into the limiting groove 215. The end face of any sub-base 210 is set to be able to match the limiting groove 215 on another sub-base 210 to prevent the movement of the limiting plate 223. In this way, the locking of the sub-insertion piece 220 and the sub-base 210 can be realized. The operation is simple, the installation is convenient and reliable.

[0066] Furthermore, a limiting hole 113 can be made on the female base 110, and the female insert 120 can be inserted into the limiting hole 113 to restrict the movement of the female insert 120 in the direction perpendicular to the extension of the limiting hole 113. At the same time, a base positioning hole 114 can be made on the female base 110, and a nut 140 can be installed in the base positioning hole 114. An insert positioning hole 122 can be made on the female insert 120. During assembly, the bolt 130 can be passed through the insert positioning hole 122 and screwed into the nut 140 to restrict the movement of the female insert 120 in the direction of extension of the limiting hole 113. In this way, the female insert 120 and the female base 110 can be locked. The operation is simple, the installation is convenient and reliable. A washer 150 can be placed between the head of the bolt 130 and the female insert 120.

[0067] Preferably, the female base 110 can be a one-piece molded structure, which results in higher assembly efficiency and structural reliability. As an alternative, the female base 110 can also be an assembly structure composed of multiple components that correspond one-to-one with the female insert 120. In this case, the number of models can be further reduced, and the selection efficiency can be improved.

[0068] Fixing holes 115 and positioning posts 116 can be provided on the mother base 110. First, the positioning posts 116 are used to pre-position it, and then screws or other connectors are used to pass through the fixing holes 115 to fix the combined terminal board to the electrical appliance, so as to realize the fixed connection between the plug-in terminal board and the electrical appliance.

[0069] A silkscreen 117 can also be set on the mother base 110 to distinguish different connection positions. For example, the connection positions can be marked with numbers in sequence.

[0070] Taking a plug-in terminal block with two connection positions as an example, different numbers of sub-components 200 can be assembled on any connection position of the mother component 100. For example, if there is one plug-in position on connection position 1 and two plug-in positions on connection position 2, then only one set of sub-components 200 needs to be assembled at connection position 2 of the mother component 100. In this case, the plug-in terminal block is a single- or double-plug-in terminal block, and its structure is as follows: Figure 13a As shown; when there are two insert positions on each of the two connection positions, a set of sub-assemblies 200 are assembled at connection positions 1 and 2 of the mother assembly 100 respectively. At this time, the insert terminal board is a double insert terminal board, and its structure is as follows. Figure 13b As shown; when there are 2 insert positions on connection position 1 and 3 insert positions on connection position 2, one set of sub-assemblies 200 is assembled at connection position 1 of the mother assembly 100, and two sets of sub-assemblies 200 are assembled at connection position 2. At this time, the insert-type terminal block is a double or triple insert terminal block, and its structure is as follows. Figure 13c As shown.

[0071] This embodiment also provides an air conditioner, which includes an electronic control module that uses the plug-in terminal block in any of the above embodiments.

[0072] In the air conditioner provided in this embodiment, the plug-in terminal block has strong versatility, fewer types, improves selection efficiency, and reduces costs.

[0073] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0074] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A plug-in type terminal block, characterized in that, It includes a mother component (100) and a sub-component (200), wherein the sub-component (200) is detachably connected to the mother component (100); The mother component (100) includes a mother base (110) and at least one mother insert (120), the mother insert being disposed on the mother base; the sub-component (200) includes a sub-base (210) and a sub insert (220), the sub insert (220) being disposed on the sub-base (210). When the sub-base (210) is connected to the mother base (110), the sub-plug (220) establishes an electrical connection with one of the mother plugs (120).

2. The insert-type terminal block according to claim 1, characterized in that, The sub-components (200) are in several groups; Each of the sub-components (200) can be detachably connected at both ends to the mother component (100) and another sub-component (200), and / or each of the sub-components (200) can be detachably connected at both ends to two other sub-components (200), so that each of the connected sub-plugs (220) can establish an electrical connection with the corresponding mother plug (120).

3. The insert-type terminal block according to claim 2, characterized in that, The mother base (110) is provided with a mother slot (111) or a mother block, and the daughter base (210) is provided with a daughter slot (212) and a daughter block (211). The female card slot (111) can engage with the female card block (211), or the female card block can engage with the female card slot (212); the female card slot (212) on any of the female bases (210) can engage with the female card block (211) on another female base (210).

4. The insert-type terminal block according to claim 3, characterized in that, The groove wall of the female card slot (111) or the female card block is provided with a female groove (112), the female card block (211) is provided with a first female protrusion (213), the groove wall of the female card slot (212) is provided with a first female groove (214), and the female groove (112) and the first female groove (214) can respectively cooperate with the first female protrusion (213); Alternatively, the groove wall of the female card slot (111) or the female card block is provided with a female protrusion, the female card block (211) is provided with a second female groove, the groove wall of the female card slot (212) is provided with a second female protrusion, and the female protrusion and the second female protrusion are respectively able to cooperate with the second female groove.

5. The insert-type terminal block according to any one of claims 2-4, characterized in that, The sub-plug (220) can be snapped into the female plug (120), and / or any two of the sub-plugs (220) can be snapped into each other.

6. The insert-type terminal block according to claim 5, characterized in that, The female insert (120) is provided with a female locking hole (121) or a female locking hook, and the male insert (220) is provided with a male locking hook (221) and a male locking hole (222). The female locking hole (121) can engage with the female locking hook (221), or the female locking hook can engage with the female locking hole (222); the female locking hole (222) on any of the female inserts (220) can engage with the female locking hook (221) on another female insert (220).

7. The insert-type terminal block according to claim 5, characterized in that, The sub-base (210) is provided with a limiting groove (215), and the sub-insertion piece (220) is provided with a limiting plate (223). The limiting groove (215) and the limiting plate (223) are inserted into each other. The end face of the mother base (110) can cooperate with the limiting groove (215) to prevent the limiting plate (223) from moving. The end face of any sub-base (210) can cooperate with the limiting groove (215) on another sub-base (210) to prevent the limiting plate (223) from moving.

8. The insert-type terminal block according to claim 7, characterized in that, The female base (110) is provided with a limiting hole (113) and a base positioning hole (114). The female insert (120) is inserted into the limiting hole (113). A nut (140) is installed in the base positioning hole (114). The female insert (120) is provided with an insert positioning hole (122). The insert positioning hole (122) is engaged with a bolt (130), and the bolt (130) is engaged with the nut (140).

9. An air conditioner, characterized in that, It includes an electrical control module, wherein the electrical control module uses the plug-in terminal block as described in any one of claims 1-8.

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