JP6453655B2 - Portable gas detector charger - Google Patents

Description

  The present invention relates to a charger for a portable gas detector, and particularly to a charger for a portable gas detector that can be connected to another charger.

  2. Description of the Related Art Conventionally, a portable gas detector charger that can be connected to another charger is known (see, for example, Patent Document 1).

  Patent Document 1 discloses a portable gas detector charger (charger) in which an engaging portion for connecting a charger main body to a charger main body of another charger is provided on a side portion of the charger main body. Is disclosed. When connecting the charger main bodies to each other, the charger main body is engaged with the other chargers in a state where the engaging portions of the charger main body and the engaging portions of the charger main bodies of other chargers are engaged with each other. It is slid in the front-rear direction relative to the charger body. Then, each circuit board is electrically connected by connecting a charger and another charger with a connection member (attachment member) for exclusive use.

Japanese Patent No. 5394463

  However, in the charger of the portable gas detector described in Patent Document 1, the dedicated connecting member is engaged after engaging the engaging portion of the charger main body with the engaging portion of the charger main body of another charger. Therefore, it is necessary to connect the charger and the other charger, and to electrically connect the charger and the other charger. For this reason, there exists a problem that the connection operation | work of the charger of a portable gas detector becomes complicated, and the structure at the time of connection also becomes complicated.

  The present invention has been made to solve the above-described problems, and one object of the present invention is to simplify the connecting operation of the charger of the portable gas detector and the structure at the time of connection. It is to provide a portable gas detector charger that is possible.

A charger for a portable gas detector according to a first aspect of the present invention is a charger for a portable gas detector including a charger main body connectable to a charger main body of another charger having the same configuration. Provided on the side of the charger main body, and arranged on the side of the charger main body where the engaging portion is provided, and the engaging portion for connecting the charger main body to the charger main body of another charger. An elastically deformable connection terminal, and the charger main body is connected to the charger main body in a state in which the engaging portion of the charger main body and the engaging portion of the charger main body of the other charger are engaged with each other. By sliding in the vertical direction relative to the charger main body, the connection terminal of the charger main body is caused to abut against the connection terminal of the charger main body of another charger in a state of being elastically deformed. together, it is configured to be coupled in a state adjacent to the transverse direction relative to the other charger The side of the charger body has a relief groove at a position where the connection terminal of the charger body of the other charger passes when sliding in the vertical direction relative to the charger body of the other charger. Is provided .
Moreover, the charger of the portable gas detector according to the second aspect of the present invention includes a charger main body connectable with a charger main body of another charger having the same configuration. And an engaging portion for connecting the charger main body to a charger main body of another charger, and a side portion of the charger main body provided with the engaging portion. The charger main body in a state where the engaging portion of the charger main body and the engaging portion of the charger main body of another charger are engaged with each other. By sliding up and down relative to the charger body of the charger, the connection terminal of the charger main body is elastically deformed and applied to the connection terminal of the charger body of the other charger in the lateral direction. Constructed to be connected and connected to other chargers in a laterally adjacent state A cover for covering the connection terminal is detachably provided on the side of the charger main body, and the cover is connected to the side of the charger main body in a state where the cover is attached to the charger main body. A convex portion that contacts the connection terminal and presses the connection terminal is included.

The portable gas detector charger according to the first and second aspects of the present invention is configured as described above, so that the portable gas detector charger and the like can be used without using a dedicated connecting member. The charger and the other charger can be electrically connected by directly connecting the charger. Thereby, the connection operation | work of the charger of a portable gas detector can be simplified. Moreover, by comprising as mentioned above, it is not necessary to provide a connection member in order to connect the charger of a portable gas detector and another charger. Thereby, the structure at the time of connection of the charger main bodies of a portable gas detector can be simplified.

In the charger of the portable gas detector according to the first and second aspects, preferably, the charger main body is in a sliding direction of the charger main body when connected to the charger main body of another charger. The positioning part for positioning the connecting terminal of the charger main body and the connecting terminal of the charger main body of another charger is provided by restricting the movement of the charger. If comprised in this way, when charger main bodies are connected, the position of the connection terminal of a charger main body and the connection terminal of the charger main body of another charger can be match | combined accurately. Thereby, it can suppress that connection terminals become poor contact in a connection state.

In the charger of the portable gas detector according to the first and second aspects, preferably, the side portion includes one side portion and the other side portion opposite to the one side portion, and the engaging portion is A first engagement portion formed on one side portion so as to extend in the vertical direction; a first engagement portion formed on the other side portion so as to extend in the vertical direction; and a first engagement portion of the charger main body of the other charger. A second engaging portion configured to be engageable with each other, and the connection terminal is provided with a first plate-like terminal provided on one side portion so as to extend in the vertical direction, and on the other side portion so as to extend in the vertical direction. A second plate-like terminal provided, and in a state where the first plate-like terminal is elastically deformed, the second plate-like terminal is brought into contact with the second plate-like terminal of the charger body of another charger in the lateral direction, and the other It is comprised so that it may be connected in the state adjacent to the horizontal direction with respect to this charger. If comprised in this way, with the 1st plate-shaped terminal and 2nd plate-shaped terminal extended in an up-down direction, the 1st plate-shaped terminal of a charger main body, and the 2nd plate-shaped terminal of the charger main body of another charger, Can be absorbed in the vertical direction. Thereby, in a connection state, it can suppress effectively that connection terminals become poor contact. In addition, by bringing the first plate-like terminal into contact with the second plate-like terminal in an elastically deformed state, the electrical connection between the first plate-like terminal and the second plate-like terminal can be reliably performed in the connected state. Can do.

  According to the present invention, as described above, the connection operation of the charger of the portable gas detector and the structure at the time of connection can be simplified.

It is the perspective view which showed the charger of the portable gas detector by one Embodiment of this invention. It is the perspective view which showed the state which connects another charger to the charger of the portable gas detector by one Embodiment of this invention. It is the figure which looked at the charger of the portable gas detector by one Embodiment of this invention from the X2 side. It is the figure which looked at the charger of the portable gas detector by one Embodiment of this invention from the Z1 side. It is the horizontal sectional view which showed the contact state of the 1st plate-shaped terminal of the charger of the portable gas detector by one Embodiment of this invention, and the 2nd plate-shaped terminal of another charger. It is the figure which showed the state in which five chargers of the portable gas detector by one Embodiment of this invention were connected. It is the figure which showed the inner surface of the cover of the one side part of the charger of the portable gas detector by one Embodiment of this invention. It is the figure which showed the inner surface of the cover of the other side part of the charger of the portable gas detector by one Embodiment of this invention. It is the figure which showed the state which engaged the cover of the one side part of the charger of the portable gas detector by one Embodiment of this invention, and the cover of the other side part. It is the figure which showed the modification of the cover of the one side part of the charger of the portable gas detector by one Embodiment of this invention. It is the figure which showed the modification of the cover of the other side part of the charger of the portable gas detector by one Embodiment of this invention.

  DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments embodying the present invention will be described below with reference to the drawings.

  First, with reference to FIGS. 1-9, the whole structure of the charger 1 of the portable gas detector by one Embodiment of this invention is demonstrated.

  A portable gas detector charger (hereinafter referred to as a charger) 1 according to an embodiment of the present invention shown in FIG. 1 is used to set and charge a portable gas detector (hereinafter referred to as a detector) 500. It is a charger. The charger 1 is provided with one detector 500, and the detector 500 is charged. As shown in FIG. 2, the charger 1 includes a charger main body 2 that can be connected to other charger main bodies 2a and 2b having the same configuration. The charger 1 is configured to connect another charger 1a to the X1 side and connect another charger 1b to the X2 side.

  As shown in FIG. 1, the charger main body 2 is formed in a substantially rectangular shape in plan view. The detector 500 is formed in a horizontally long shape in plan view, and is set in the charger 1 such that the longitudinal direction is along the longitudinal direction (Y direction) of the charger body 2. That is, in the set state in which charging is performed, the longitudinal direction of the detector 500 and the longitudinal direction of the charger body 2 are aligned. Further, the charger main body 2 is configured to set the detector 500 in a horizontally placed state in which the bottom surface (surface having a larger area than the side surface) of the detector 500 faces downward. Detector 500 is set in charger 1 by being inserted in the Y2 direction from the Y1 side. Moreover, the cover 4 is provided in the X1 side edge part of the charger main body 2 so that attachment or detachment is possible. A cover 5 is detachably provided at the end of the charger body 2 on the X2 side. The covers 4 and 5 may be connected to the charger main body 2 by wires. The charger main body 2 and the covers 4 and 5 are made of resin. As the resin, for example, flame retardant grade ABS resin (acrylonitrile butadiene styrene resin) can be used. In the present specification, the longitudinal direction of the charger body 2 is referred to as the Y direction.

  The charger body 2 includes a bottom portion 20, one side portion 21, the other side portion 22, a short side portion 23 on the Y2 side, a regulating portion 24, a charger detecting portion 25, and a charging terminal 26. I have. The charger main body 2 includes a first engaging portion 27, a positioning portion 28, and a first plate-like terminal 29. As shown in FIG. 3, the charger main body 2 includes a second engagement portion 30, a second plate-shaped terminal 31, an escape groove portion 32, an LED 33 (see FIG. 1), and a short side portion on the Y1 side. 34. The one side portion 21 and the other side portion 22 are both examples of the “side portion” in the present invention. The first engaging portion 27 and the second engaging portion 30 are both examples of the “engaging portion” of the present invention. The first plate terminal 29 and the second plate terminal 31 are both examples of the “connection terminal” in the present invention.

  As shown in FIG. 1, the charger main body 2 is configured such that the Y1 side is lower than the Y2 side as a whole. Specifically, the charger main body 2 is configured such that the upper end portion of the short side portion 34 on the Y1 side is lower than the upper end portion of the short side portion 23 on the Y2 side. Further, a set portion S for setting the detector 500 is formed in a region between the short side portion 34 on the Y1 side and the short side portion 23 on the Y2 side. The set part S is a hollow part formed in a region including the central part of the charger main body 2 in plan view. The set portion S is lower than the upper end portion of the short side portion 23 on the Y2 side, similarly to the upper end portion of the short side portion 34 on the Y1 side. Thereby, it is possible to easily set the detector 500 by inserting it into the setting portion S in the Y2 direction from the Y1 side. Moreover, it is possible to suppress the height of the charger 1 in which the detector 500 is set.

  As shown in FIG. 1, the bottom portion 20 is a surface on the Z2 side of the charger body 2. The bottom portion 20 is a flat surface that comes into contact with the installation surface when the charger 1 is installed. The bottom portion 20 has the largest area among the outer surfaces of the charger body 2.

  The one side portion 21 is provided at the end portion on the X1 side of the charger main body 2. The one side portion 21 is a surface extending in the vertical direction (Z direction) with respect to the bottom portion 20.

  The other side part 22 is provided in the X2 side edge part of the charger main body 2, as shown in FIG. The other side portion 22 is provided on the side opposite to the one side portion 21. The other side portion 22 is formed substantially parallel to the one side portion 21. The other side portion 22 is a surface extending in the vertical direction (Z direction) with respect to the bottom portion 20.

  The short side part 23 is provided at the Y2 side end of the charger main body 2. The short side portion 23 is a flat surface extending in the vertical direction (Z direction) with respect to the bottom portion 20. The short side portion 23 is provided with an external power supply connection terminal 231 to which an AC adapter 100 (see FIG. 1) for supplying power to the charger 1 can be attached. Note that an AC adapter 110 (see FIG. 6) used when a plurality of units are connected can be attached to the external power supply connection terminal 231 instead of the AC adapter 100 used when a single unit is used.

  As shown in FIG. 1, the restricting portion 24 includes three convex portions that protrude upward. The restricting unit 24 is in contact with a plurality of side surfaces of the detector 500 set in the charger 1 and restricts the detector 500 from moving in the X direction and the Y direction.

  The charger detector 25 is configured to detect that the detector 500 is set in the charger 1.

  The charging terminal 26 is configured to supply electric power to the detector 500 when the charger detector 25 detects that the detector 500 is set in the charger 1.

  The first engaging portion 27 is formed on the one side portion 21 so as to extend in the vertical direction (Z direction). Specifically, a pair of first engaging portions 27 are provided at a predetermined interval in the Y direction. The pair of first engaging portions 27 are formed in parallel to each other. As shown in FIG. 4, the first engaging portion 27 has a horizontal cross-sectional shape such that the closer to the one side portion 21, the narrower the width in the Y direction. The inner side surface 27a of the first engagement portion 27 is configured to be inclined with respect to the X direction. The space sandwiched between the pair of first engaging portions 27 has a substantially isosceles trapezoidal concave shape having a lower base (long side with respect to the upper base) on one side 21 (X2 side) in the horizontal section. Is formed. As shown in FIG. 5, the first engagement portion 27 is configured to be able to engage with the second engagement portion 30 of another charger body 2 a. The charger main body 2 is connected to the other charger main body 2a in a state where the first engagement portion 27 and the second engagement portion 30 of the other charger main body 2a are engaged with each other in the X direction and the Y direction. Thus, it is configured to be relatively slidable in the vertical direction (Z direction).

  As shown in FIG. 1, the positioning portion 28 is provided on one side portion 21 of the charger main body 2. The positioning portion 28 is formed in a rib shape so as to extend in the Y direction. The positioning part 28 connects the upper ends of the pair of first engaging parts 27. The positioning unit 28 is configured to regulate movement of the charger main body 2 in the sliding direction (Z2 direction) when connected to the other charger main body 2a. The positioning unit 28 can position the first plate terminal 29 of the charger body 2 and the second plate terminal 31 (see FIG. 3) of the other charger body 2a.

  The first plate-like terminal 29 is disposed so as to be exposed to the outside at one side portion 21 provided with the first engagement portion 27 in the charger main body 2. The first plate terminal 29 is formed in a plate spring shape and is configured to be elastically deformable. The first plate-like terminal 29 is provided on the one side portion 21 so as to extend in the vertical direction (Z direction). A pair of first plate terminals 29 are provided at a predetermined interval in the Y direction. The pair of first plate terminals 29 are disposed at substantially the same height in the Z direction. The pair of first plate terminals 29 have substantially the same length in the Z direction. Further, the first plate-like terminal 29 is disposed in a region surrounded by the first engaging portion 27 and the positioning portion 28.

  As shown in FIG. 3, the second engagement portion 30 is formed on the other side portion 22 so as to extend in the vertical direction (Z direction). Specifically, a pair of second engaging portions 30 are provided at a predetermined interval in the Y direction. As shown in FIG. 4, the second engaging portion 30 includes an end 30a and an outer surface 30b. The second engagement portion 30 has a horizontal cross-sectional shape such that the closer to the other side portion 22, the narrower the width in the Y direction. The outer surface 30b in the Y direction of the second engagement portion 30 is configured to be inclined with respect to the X direction. The portion including the second engaging portion 30 is formed in a substantially isosceles trapezoidal convex shape having an upper base (a short side with respect to the lower base) on the other side portion 22 side (X1 side) in the horizontal cross section. Yes. As shown in FIG. 5, the second engagement portion 30 is configured such that the first engagement portion 27 of the other charger main body 2 b can be engaged. The charger main body 2 is connected to the other charger main body 2b in a state where the second engaging portion 30 and the first engaging portion 27 of the other charger main body 2b are engaged with each other in the X direction and the Y direction. Thus, it is configured to be relatively slidable in the vertical direction (Z direction).

  As shown in FIG. 3, the second plate-shaped terminal 31 is disposed on the other side portion 22 of the charger body 2 where the second engagement portion 30 is provided. A pair of second plate terminals 31 are provided at a predetermined interval in the Y direction. Since the second plate-like terminal 31 has substantially the same configuration as the first plate-like terminal 29, a detailed description of the second plate-like terminal 31 is omitted.

  The escape groove 32 is provided on the other side 22 of the charger body 2. A pair of escape grooves 32 are formed so as to extend linearly in the vertical direction (Z direction). The escape groove 32 passes through the first plate-like terminal 29 of the other charger main body 2b when the charger main body 2 slides in the vertical direction relative to the other charger main body 2b (see FIG. 2). It is provided in the position to do. Specifically, the pair of escape grooves 32 are disposed at substantially the same position as the position in the Y direction of the pair of second plate terminals 31 of the other charger main body 2b. Further, the pair of escape groove portions 32 are disposed above the pair of second plate terminals 31 and adjacent to the second plate terminals 31.

  The LED 33 (see FIG. 1) is disposed on the upper surface of the charger body 2. LED33 is comprised so that a lighting state may be switched according to various operation states, such as a charge state.

  A connection state in which a plurality of chargers are connected will be described in detail.

  As shown in FIG. 2, the charger 1 is configured such that the first engaging portion 27 of the charger 1 and the second engaging portion 30 (see FIG. 5) of the other charger 1 a engage with each other. 1 is configured such that the other charger 1a is connected to the X1 side. Further, the charger 1 is engaged with the second engagement portion 30 of the charger 1 and the first engagement portion 27 of the other charger 1b, so that the other charger 1b on the X2 side of the charger 1 is engaged. Are configured to be linked.

  Specifically, the charger main body 2 is connected to the other charger main body 2a in a state where the first engaging portion 27 of the charger main body 2 and the second engaging portion 30 of the other charger main body 2a are engaged with each other. On the other hand, the battery charger 1 is configured to be connected in a state adjacent to the other battery charger 1a in the lateral direction (X1 direction) by relatively sliding in the vertical direction.

  Similarly, with the second engagement portion 30 of the charger main body 2 and the first engagement portion 27 of the other charger main body 2b engaged with each other, the charger main body 2 is connected to the other charger main body 2b. Thus, the battery charger 1 is configured to be connected in a state adjacent to the other battery charger 1b in the lateral direction (X2 direction).

  Further, as shown in FIG. 5, in the connected state, the first plate terminal 29 of the charger body 2 is elastically deformed and the lateral direction (with respect to the second plate terminal 31 of the other charger body 2 a ( By abutting in the Y direction), the charger 1 is configured to be connected to the other charger 1a in a state adjacent to the lateral direction (X direction). Similarly, by making the second plate terminal 31 of the charger main body 2 elastically deformed and contacting the first plate terminal 29 of the other charger main body 2b in the lateral direction (Y direction), The charger 1 is configured to be connected in a state adjacent to the other charger 1b in the lateral direction (X direction). That is, in the connected state, the first plate-like terminal 29 and the second plate-like terminal 31 are brought into contact (contact) so as to be in line contact along the Y direction.

  Further, as shown in FIG. 6, similarly to the other chargers 1a and 1b, the other chargers 1c and 1d are respectively connected to one side portion 21 side (X1 side) and the other charge of the other charger 1a. It arrange | positions at the other side part 22 side (X2 side) of the container 1b. FIG. 6 shows an example in which four other chargers (1a to 1d) can be directly or indirectly connected to the charger 1, and a total of five chargers are connected. . At this time, a plurality of AC adapters 110 are connected to one charger among the charger 1 or the other chargers 1a to 1d, and power is supplied to the five chargers.

  Next, details of the covers 4 and 5 will be described.

  As shown in FIG. 7, the cover 4 has a substantially rectangular shape when viewed from the X1 side. The cover 4 includes a third engagement portion 41, a positioning portion 42, and a rib 43. The third engaging portion 41, the positioning portion 42, and the rib 43 are surfaces on the X2 side of the cover 4 in a state where the cover 4 is attached to the charger body 2 (hereinafter referred to as a cover attached state; see FIG. 4). Is arranged.

  The third engaging portion 41 is formed so as to extend in the vertical direction (Z direction). As shown in FIG. 4, the third engagement portion 41 is configured to be engageable with the first engagement portion 27 of the charger main body 2. The third engagement portion 41 has the same shape as the second engagement portion 30 of the charger main body 2. Specifically, a pair of third engaging portions 41 is provided at a predetermined interval in the Y direction. The third engagement portion 41 includes an end portion 41a and an outer surface 41b. The third engaging portion 41 has a horizontal cross-sectional shape in which the width in the Y direction becomes wider as it is closer to the one side portion 21 of the charger body 2 in the cover attached state. The outer surface 41b in the Y direction of the third engagement portion 41 is configured to be inclined with respect to the X direction. The portion including the third engagement portion 41 is a substantially isosceles trapezoidal protrusion having a lower base (long side with respect to the upper base) on the one side portion 21 side (X2 side) of the charger main body 2 in the horizontal section. It is formed into a shape. The third engaging portion 41 is configured so that the first engaging portion 27 of the charger main body 2 is engaged. The cover 4 is vertically movable relative to the charger body 2 in a state where the third engagement portion 41 and the first engagement portion 27 of the charger body 2 are engaged with each other in the X direction and the Y direction. It is configured to be slidable in the (Z direction).

  As shown in FIG. 7, the positioning portion 42 extends in the Y direction orthogonal to the direction in which the third engagement portion 41 extends. The positioning portion 42 is disposed between the pair of third engagement portions 41 and connects the upper ends of the pair of third engagement portions 41. The positioning portion 42 is configured to contact the positioning portion 28 (see FIG. 1) of the one side portion 21 of the charger main body 2 in the cover attachment state. Thereby, the relative position with respect to the charger main body 2 of the cover 4 is determined.

  The rib 43 is configured to contact the first plate-like terminal 29 (see FIG. 4) of the one side portion 21 of the charger main body 2 and press the first plate-like terminal 29 in the cover attachment state. . Thereby, an urging force acts between the cover 4 and the charger main body 2, and the cover 4 is prevented from being displaced in the vertical direction (Z direction) with respect to the charger main body 2.

  As shown in FIG. 8, the cover 5 has a substantially rectangular shape when viewed from the X1 side. The cover 5 includes a fourth engaging portion 51, a contact portion 52, and a rib 53. The 4th engaging part 51, the contact part 52, and the rib 53 are arrange | positioned at the X1 side surface of the cover 5 in a cover attachment state (refer FIG. 4).

  The fourth engaging portion 51 is formed so as to extend in the vertical direction (Z direction). The 4th engaging part 51 is comprised so that engagement with the 2nd engaging part 30 of the charger main body 2 is possible, as shown in FIG. The fourth engagement portion 51 has the same shape as the first engagement portion 27 of the charger main body 2. Specifically, a pair of fourth engaging portions 51 are provided at a predetermined interval in the Y direction. The pair of fourth engaging portions 51 are formed in parallel to each other. The fourth engagement portion 51 has a horizontal cross-sectional shape in which the width in the Y direction becomes narrower as it is closer to the other side portion 22 of the charger body 2 in the cover attached state. The inner side surface 51a of the fourth engagement portion 51 is configured to be inclined with respect to the X direction. The space sandwiched between the pair of fourth engaging portions 51 is a substantially equal leg having an upper base (a short side with respect to the lower base) on the other side 22 side (X1 side) of the charger main body 2 in the horizontal cross section. It is formed in a trapezoidal concave shape. The fourth engagement portion 51 is configured to engage with the second engagement portion 30 of the charger main body 2. The cover 5 is vertically movable relative to the charger body 2 in a state where the fourth engagement portion 51 and the second engagement portion 30 of the charger body 2 are engaged with each other in the X direction and the Y direction. It is configured to be slidable in the (Z direction).

  As shown in FIG. 8, the contact portion 52 extends in a direction (Y direction) orthogonal to the fourth engagement portion 51. The contact portion 52 is disposed between the pair of fourth engagement portions 51 and connects the upper ends of the pair of fourth engagement portions 51 to each other. The contact portion 52 is configured to contact the upper end portion (Z1 side end portion) of the second engagement portion 30 of the other side portion 22 of the charger main body 2 in the cover attachment state. Thereby, the relative position with respect to the charger main body 2 of the cover 5 is determined.

  The rib 53 is configured to contact the second plate-like terminal 31 (see FIG. 4) of the other side portion 22 of the charger body 2 and press the second plate-like terminal 31 in the cover attachment state. . Thereby, an urging force acts between the cover 5 and the charger main body 2, and the cover 5 is prevented from being displaced with respect to the charger main body 2.

  When the charger 1 is in an unconnected state (see FIG. 1), it is possible to protect each of the first plate terminal 29 and the second plate terminal 31 by the covers 4 and 5.

  Moreover, as shown in FIG. 9, the 4th engaging part 51 of the cover 5 and the 3rd engaging part 41 of the cover 4 are comprised so that engagement is mutually possible. Thereby, since the covers 4 and 5 can be integrated, the covers 4 and 5 can be stored together.

  In the present embodiment, the following effects can be obtained.

  In the present embodiment, a first engagement portion 27 (provided on one side portion 21 (the other side portion 22) of the charger main body 2 and for connecting the charger main body 2 to another charger main body 2a (2b). 2nd engaging part 30) and the elastic deformation | transformation arrange | positioned at the one side part 21 (other side part 22) in which the 1st engaging part 27 (2nd engaging part 30) was provided among the charger main bodies 2 is possible. First plate-like terminals 29 (second plate-like terminals 31) are provided. Further, the first engaging portion 27 (second engaging portion 30) of the charger main body 2 and the second engaging portion 30 of other charger main body 2a (first engaging portion 27 of the other charger main body 2b). Are engaged with each other, the charger main body 2 is slid in the vertical direction relative to the other charger main bodies 2a (2b), whereby the first plate terminal 29 (first In a state where the two plate-shaped terminals 31) are elastically deformed, they are brought into contact with the second plate-shaped terminals 31 of the other charger main bodies 2a (the first plate-shaped terminals 29 of the other charger main bodies 2b) in the lateral direction. At the same time, the charger 1 is configured to be connected in a state adjacent to the other charger 1a (1b) in the lateral direction. Accordingly, the charger 1 and the other charger 1a (1b) are directly connected to each other without using a dedicated connecting member, and the charger 1 and the other charger 1a (1b) are electrically connected. can do. As a result, the connecting operation of the charger 1 can be simplified. Further, it is not necessary to provide a connecting member to connect the charger 1 and the other charger 1a (1b). Thereby, the structure at the time of connection with charger main body 2a and 2b and charger main body 2 can be simplified.

  Further, the space sandwiched between the pair of first engaging portions 27 is formed in a substantially isosceles trapezoidal concave shape, and the portion including the second engaging portion 30 is sandwiched between the pair of first engaging portions 27. It is formed in a substantially isosceles trapezoidal convex shape so as to correspond to the space. When a plurality of chargers are connected, the first plate-like terminal 29 and the second plate-like terminal 31 that can be elastically deformed are in contact with each other while being pushed in the vertical direction (Z direction). The first plate-like terminal 29 and the second plate-like terminal 31 bias each other in the horizontal direction (X direction). Accordingly, when the first engagement portion 27 and the second engagement portion 30 are engaged, the movement in the X direction is restricted by the first engagement portion 27 and the second engagement portion 30. The first and second engaging portions 27 and 30 can be pressed by the first and second plate-like terminals 29 and 31 in the direction in which the engagement is strengthened (X direction). As a result, a plurality of chargers can be firmly connected without using an attachment or the like. Similarly, when the third engagement portion 41 of the cover 4 is engaged with the first engagement portion 27 of the charger body 2, and when the fourth engagement portion 51 of the cover 5 is the charger body 2. Even when the second engaging portion 30 is engaged, the rib 43 of the cover 4 and the first plate-like terminal 29 bias each other in the horizontal direction (X direction), and the rib 53 of the cover 5 and the second plate The shaped terminals 31 bias each other in the horizontal direction. Thereby, the covers 4 and 5 can be reliably fixed to the charger main body 2.

  Further, in the present embodiment, by restricting the movement of the charger main body 2 in the sliding direction when connected to the other charger main body 2a, the first plate terminal 29 of the charger main body 2 and the other charging The charger body 2 is provided with a positioning portion 28 for positioning with the second plate terminal 31 of the charger body 2a. Thereby, when connecting the charger main bodies 2 and 2a, the positions of the first plate-like terminals 29 of the charger main body 2 and the second plate-like terminals 31 of the other charger main bodies 2a can be accurately matched. . As a result, it is possible to suppress contact failure between the first plate-like terminal 29 and the second plate-like terminal 31 in the connected state.

  Moreover, in this embodiment, when it slides in the up-down direction relatively with respect to the other charger main body 2b, the escape groove 32 is placed at the position where the first plate terminal 29 of the other charger main body 2b passes. Provided on the other side 22 of the main body 2. Thus, when the charger 1 and the other charger 1b are connected, the first plate terminal 29 of the other charger main body 2b interferes (rubs) with the other side portion 22 of the charger main body 2. Can be suppressed. As a result, the second plate terminal 31 of the charger 1 and the first plate terminal 29 of another charger 1b can be smoothly connected.

  In the present embodiment, the first engagement portion 27 formed to extend in the up-down direction on the one side portion 21 and the other charger main body formed on the other side portion 22 to extend in the up-down direction. A second engaging portion 30 configured to be engageable with the first engaging portion 27 of 2b is provided. In addition, a first plate-like terminal 29 provided on the one side portion 21 so as to extend in the vertical direction and a second plate-like terminal 31 provided on the other side portion 22 so as to extend in the vertical direction are provided. Further, the second plate terminal 31 of the other charger main body 2a (the first plate terminal 29 of the other charger main body 2b) with the first plate terminal 29 (second plate terminal 31) elastically deformed. ) In the lateral direction, and the charger 1 is configured to be connected to the other charger 1a (1b) in a state adjacent in the lateral direction. Accordingly, the first plate terminal 29 (second plate terminal 31) of the charger main body 2 and the other charger main body 2a are connected to each other by the first plate terminal 29 and the second plate terminal 31 extending in the vertical direction. The positional deviation in the up-down direction with respect to the second plate-like terminal 31 (the first plate-like terminal 29 of the other charger main body 2b) can be absorbed. As a result, in the connected state, the first plate terminal 29 (second plate terminal 31) of the charger 1 and the second plate terminal 31 of the other charger 1a (first plate terminal of the other charger 1b). 29) and contact failure can be effectively suppressed. In addition, the first plate terminal 29 and the second plate terminal 31 can be electrically connected in the connected state by bringing the first plate terminal 29 into elastic contact with the second plate terminal 31. It can be done reliably.

  The embodiment disclosed this time should be considered as illustrative in all points and not restrictive. The scope of the present invention is shown not by the above description of the embodiment but by the scope of claims for patent, and further includes all modifications (modifications) within the meaning and scope equivalent to the scope of claims for patent.

  For example, in the example shown in FIG. 6 of the above-described embodiment, an example in which a total of five chargers (1, 1a to 1d) are connected is shown, but the present invention is not limited to this. In the present invention, a total of 2 to 4 or 6 or more chargers may be connected.

  In the above embodiment, an example in which a plurality of other chargers (1a to 1d) are connected so as to be arranged in the X direction has been described, but the present invention is not limited thereto. In the present invention, a plurality of other chargers may be connected so as to be arranged in the Y direction. A plurality of other chargers may be connected so as to be arranged in the X direction and the Y direction.

  Moreover, in the said embodiment, although the example set to the charger 1 so that the longitudinal direction (Y direction) of the detector 500 and the longitudinal direction of the charger main body 2 were aligned was shown, this invention is limited to this. Absent. In the present invention, the longitudinal direction of the detector may be set in the charger along the short side direction (X direction) of the charger body.

  Moreover, in the said embodiment, although the charger main body 2 showed the example comprised so that the detector 500 might be set so that the bottom face of the detector 500 might face below, this invention is not limited to this. . In the present invention, the charger main body may be configured to set the detector so that the bottom surface of the detector faces sideways.

  Moreover, in the said embodiment, although the example which provided the positioning part 28 in the one side part 21 of the charger main body 2 was shown, this invention is not limited to this. In the present invention, the positioning portion 28 may not be provided on the one side portion 21 of the charger body 2.

  Moreover, although the example which provided the escape groove part 32 in the other side part 22 of the charger main body 2 was shown in the said embodiment, this invention is not limited to this. In the present invention, the escape groove portion 32 may not be provided on the other side portion 22 of the charger body 2.

  Moreover, in the said embodiment, although the 1st plate-shaped terminal 29 and the 2nd plate-shaped terminal 31 showed the example which carries out a line contact, this invention is not limited to this. In the present invention, the first plate-like terminal and the second plate-like terminal may be in surface contact.

  In the above-described embodiment, an example in which the external power connection terminal 231 is provided on the short side portion 23 on the Y2 side is shown, but the present invention is not limited to this. In the present invention, the external power supply connection terminal may be provided on the other side surface (one side portion 21, the other side portion 22, the short side portion 34 on the Y1 side).

  Moreover, in the said embodiment, although the covers 4 and 5 were comprised in the shape demonstrated above, this invention is not limited to this. In the present invention, the cover may have a shape other than the shape described above. For example, the cover 140 shown in FIG. 10 and the cover 150 shown in FIG. 11 may be detachably attached to the X1 side end and the X2 side end of the charger main body 2 (see FIG. 1), respectively. As shown in FIG. 10, the cover 140 includes a third engagement portion 141 that can be engaged with the first engagement portion 27 (see FIG. 1) of the charger main body 2 on the surface on the X2 side when the cover is attached. It is out. Further, the cover 140 includes concave portions 142 at the upper end portion and the lower end portion when viewed from the X direction. The recess 142 is formed in a substantially semicircular shape. Further, the cover 140 can be attached to and detached from the X1 side end of the charger main body 2 from either the upper side or the lower side in the state shown in FIG. As shown in FIG. 11, the cover 150 has a fourth engagement portion 151 that can engage with the second engagement portion 30 (see FIG. 3) of the charger main body 2 on the X1 side surface in the cover attached state. Is included. In addition, the upper end portion of the cover 150 includes a dust cushion 152 for preventing dust and dirt from adhering to the second plate-shaped terminal 31 (see FIG. 3) when the cover is attached. The covers 140 and 150 can be engaged with each other and can be integrated, like the covers 4 and 5 shown in FIG.

DESCRIPTION OF SYMBOLS 1 Charger of portable gas detector 1a-1d Other charger 2 Charger main body 2a-2d Other charger main body 21 One side part (side part)
22 The other side (side)
27 1st engaging part (engaging part)
28 Positioning part 29 First plate terminal (connection terminal)
30 Second engaging portion (engaging portion)
31 Second plate terminal (connection terminal)
32 Relief groove 500 Portable gas detector

Claims (4)

A portable gas detector charger comprising a charger body connectable to a charger body of another charger having the same configuration,
An engaging portion provided on a side portion of the charger main body, for connecting the charger main body with a charger main body of the other charger;
An elastically deformable connection terminal disposed on the side portion of the charger main body provided with the engaging portion;
Relative to the charger body of the other charger in a state where the engaging portion of the charger body and the engaging portion of the charger body of the other charger are engaged with each other. And by making the connection terminal of the charger body elastically deformed by causing the connection terminal of the charger body to elastically deform, thereby causing the connection terminal of the charger body of the other charger to contact laterally, and It is configured to be connected laterally adjacent to the charger ,
In the side portion of the charger main body, a connection terminal of the charger main body of the other charger passes when sliding in the vertical direction relative to the charger main body of the other charger. A portable gas detector charger provided with an escape groove . A portable gas detector charger comprising a charger body connectable to a charger body of another charger having the same configuration,
An engaging portion provided on a side portion of the charger main body, for connecting the charger main body with a charger main body of the other charger;
An elastically deformable connection terminal disposed on the side portion of the charger main body provided with the engaging portion;
Relative to the charger body of the other charger in a state where the engaging portion of the charger body and the engaging portion of the charger body of the other charger are engaged with each other. And by making the connection terminal of the charger body elastically deformed by causing the connection terminal of the charger body to elastically deform, thereby causing the connection terminal of the charger body of the other charger to contact laterally, and It is configured to be connected laterally adjacent to the charger,
A cover for covering the connection terminal is detachably provided on the side portion of the charger main body,
The cover includes a convex portion that contacts the connection terminal on the side of the charger body and presses the connection terminal in a state where the cover is attached to the charger body. Charger. By restricting movement of the charger main body in the sliding direction when the charger main body is connected to the charger main body of the other charger, the connection terminal of the charger main body and the other charger are controlled. The charger for a portable gas detector according to claim 1 or 2 , wherein a positioning portion for positioning with a connection terminal of a charger main body of the charger is provided. The side part includes one side part and the other side part opposite to the one side part,
The engaging portion is formed on the one side portion so as to extend in the up-down direction, and is formed on the other side portion so as to extend in the up-down direction, while charging the other charger. A second engagement portion configured to be engageable with the first engagement portion of the container body,
The connection terminal includes a first plate-like terminal provided on the one side portion so as to extend in the vertical direction, and a second plate-like terminal provided on the other side portion so as to extend in the vertical direction.
The first plate-like terminal is elastically deformed and brought into contact with the second plate-like terminal of the charger main body of the other charger in the lateral direction and laterally with respect to the other charger. The charger for a portable gas detector according to any one of claims 1 to 3, wherein the charger is configured to be connected in an adjacent state.

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