Abstract: A keyboard device and a mouse cord holder thereof for using in a mouse cord (101). The mouse cord holder (10) includes a base (1), a cord guiding frame (2) and a magnetic assembly (3). The base (1) has a bottom surface (11). The cord guiding frame (2) is connected to the base (1) and is arranged at an acute angle (?) with respect to the bottom surface (11). The magnetic assembly (3) includes a first magnetic element (31) and a second magnetic element (32), the first magnetic element (31) is fixed at one end of the cord guiding frame (2) away from the base (1), and the second magnetic element (32) receives and fixes the mouse cord (101). The first magnetic element (31) and the second magnetic element (32) are magnetically attached to each other or are separated from each other.

Abstract: A luminous mouse pad includes a base plate, a light source, and a light-guiding pipe. The light source is disposed in the fixing unit. The light-guiding pipe is fixed on a periphery of the base plate. At least one end of the light-guiding pipe is adjacent to the light source and guides a light from the light source into the light-guiding pipe. The light-guiding pipe is exposed outside the periphery of the base plate, so that the light from the light source irradiates from a surface of the light-guiding pipe.

Abstract: A lighting module and an illuminant mouse pad are disclosed. The lighting module includes a plurality of point light sources and a light guide plate; the light guide plate includes a light-emitting section, a light incident section, and a light-reflecting section, the light-reflecting section is connected to the light-emitting section and the light incident section and has a light-reflecting surface; light beams from the point light sources are incident to the light guide plate through the light incident section and emitted out from a light-emitting surface of the light-emitting section after the light beams are conveyed by the light-reflecting surface. The illuminant mouse pad includes the lighting module abovementioned, a base, and a mat; the base includes a receiving part for accommodating the lighting module, and the mat partially covers the lighting module and exposes the light-emitting surface.

Abstract: A mouse pad includes a fabric and a flat pad. The pad has an upper surface and a lower surface corresponding to each other, and an edge is along the periphery of the upper and lower surfaces. The fabric is smoothly and flatly covered on the upper surface, the lower surface, and the edge smoothly and flatly. Thus, by completely covering the upper surface, the lower surface and the edge of the pad, formation of deckle edge or falling off of the fabric to expose the product defect due to lack of durability.

Abstract: The distributor unit (10) is coupled to a heat pump (12) and to various circuits for collecting (24, 28, 30) and for delivering (38, 40, 52, 56) heat, with the unit serving to provide selective interconnection therebetween in application of various predetermined combinational schemes for fluid distribution by automatically controlling an integrated network of stop valves (200). The schemes define modes of operation such as natural cooling or freeze-proofing, producing hot water and/or air conditioning from a single installation by optimizing transfers of heat between the circuits so that the heat pump is always operating in its thermodynamically optimum zone.

Abstract: The distributor unit (10) is coupled to a heat pump (12) and to various circuits for collecting (24, 28, 30) and for delivering (38, 40, 52, 56) heat, with the unit serving to provide selective interconnection therebetween in application of various predetermined combinational schemes for fluid distribution by automatically controlling an integrated network of stop valves (200). The schemes define modes of operation such as natural cooling or freeze-proofing, producing hot water and/or air conditioning from a single installation by optimizing transfers of heat between the circuits so that the heat pump is always operating in its thermodynamically optimum zone.

Abstract: The probe (10) comprises a circuit for circulating a heat-conveying fluid, between a fluid inlet (28) and a fluid outlet (34) connected to a heat pump. The circuit comprises at least two tubes (12, 14) extending in parallel, comprising a fluid admission tube (14) and a fluid return tube (12), the admission and return tubes being put into communication (24) with each other at their distal ends (18, 22). The tubes are made with a wall in common over their entire length, advantageously a wall that is isothermal. They may be engaged one inside the other (12, 14) or they may be adjoining. The assembly forms a single tubular element suitable for burying having a distal end that is free that can easily be introduced into a tunnel of small diameter that has been dug by a miniature boring machine.