JP2007300005A - Electrical heater equipment - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an electrical heater equipment which can attain the prevention of deformation of a current carrying terminal in the connection of an electrical connector by a means of high design flexibility of a current carrying terminal, and can attain the improvement of mounting workability of a housing member. <P>SOLUTION: A stopper member 90 is mounted in one end side of a heater lamination 10 straddling a plurality of heating members 70 and being constrained from its movement toward the other end with respect to the heating member 70. The stopper member 90 is formed so that the interval of the heating member 70 is formed to be capable of holding constantly; and in the stopper member 90, a stopper is formed which is arranged along the a folded strip 77a while being mounted in the heating member 70, and constrains the displacement of the folded strip 77a in the input to the current carrying terminal 77 in the connection of the electrical connector. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an electric heater device provided with a PTC (Positive Temperature Coefficient) element.

  2. Description of the Related Art Conventionally, as an electric heater device including a PTC element that generates heat when energized, a PTC element, an electrode sheet that energizes the PTC element, and a plurality of fin members that dissipate heat from the PTC element are stacked. ing.

  A plurality of energizing terminals connected to the electrode sheet protrude from a housing member attached to one end of the electric heater device, and connectors for supplying power are connected to these energizing terminals for use.

Moreover, in order to ensure the space | interval of an energization terminal and to make pitch with a connector side correspond, what formed the energization terminal by bending in L shape is known (for example, refer patent document 1). .
JP 2004-198100 A

  However, in the above-described prior art, since the energizing terminal is formed in an L shape, there is a possibility that the energizing terminal is deformed by input from the connector when the connector is connected. Moreover, in order to prevent this deformation | transformation, the material and board thickness were restrict | limited as an electricity supply terminal.

  Furthermore, the current-carrying terminal is inserted into a terminal insertion hole formed in the housing member, so that the pitch is made equal to a preset pitch.

  However, when the PTC element, the electrode sheet, and the fin member are stacked, it is difficult to align the current-carrying terminals at a constant pitch, and a plurality of current-carrying terminals are formed on the housing member when the housing is assembled to one end of this laminate. Further, it is difficult to pass through a plurality of terminal insertion holes at once, and improvement in workability has been desired.

  The present invention has been made paying attention to such a conventional problem, and can prevent deformation of the energizing terminal at the time of connector connection by means having a high degree of freedom in design of the energizing terminal, and a housing member. An object of the present invention is to provide an electric heater device capable of improving the mounting workability.

  In order to achieve the above-mentioned object, the invention described in claim 1 includes a PTC element that generates heat when energized, a heat generating member that includes an electrode that supplies current to the PTC element, a heat radiating member that dissipates heat from the heat generating member, And a plurality of energization terminals connected to the electrodes are arranged in the stacking direction at one end of the heater laminate, and a power supply side connector is connected to the energization terminals. A housing member in which a connector connecting portion is formed is mounted, and between at least one of the energizing terminals and the electrode, the energizing terminal is bent at a substantially right angle in the stacking direction so that the interval between the energizing terminals is the base end side and the distal end An electric heater device provided with a bent portion that is changed between the heater layered body and the one end side of the heater laminate, straddling the plurality of heat generating members, and in the other end direction with respect to the heat generating members. What A stopper member is mounted with its movement restricted, and this stopper member is formed so as to be able to maintain a constant interval between the heat generating members, and the stopper member is attached to the bent portion when mounted on the heat generating member. The electric heater device is characterized in that a stopper portion is formed that is disposed along the surface and restricts the bending portion from being displaced by an input to the energizing terminal when the connector is connected.

  The invention according to claim 2 is the electric heater device according to claim 1, wherein the stopper member sandwiches each heat generating member and restricts movement of the heat generating member in the stacking direction. The electric heater device is characterized in that the clamping rod portion is connected to the connecting rod portion provided with the stopper portion.

  The invention according to claim 3 is the electric heater device according to claim 1 or 2, wherein the heat generating member is formed in a long plate shape by an insulating resin and supports the PTC element. A position frame in which a supporting portion is formed, and two sheet-like electrodes arranged so as to sandwich the position frame and the PTC element are inserted into a tubular tube member, and the position frame includes The stopper member is attached to a portion protruding from one end of the tube member, and a restriction claw that engages with the stopper member and restricts movement in the other end direction is formed. The electric heater device was characterized.

  According to a fourth aspect of the present invention, in the electric heater device according to the third aspect of the present invention, the position frame is related to the electrodes so that relative displacement of the electrodes in the stacking direction with respect to the position frame can be regulated. The engaging claw member to be joined is integrally formed, and this engaging claw member is also engaged with the stopper member serving as the restricting means.

  The procedure for assembling the electric heater device of the present invention will be described. First, a plurality of heat generating members and a heat radiating member are stacked to form a heater laminate, and one end of the heater laminate is straddled across the plurality of heat generating members. A stopper member is attached, and a housing member is attached to one end of the heater laminate.

  When the housing member is mounted, the heat generating member of the heater laminate is held at a constant interval by the stopper member, whereby the interval between the energization terminals provided on the heat generating member is also maintained constant. For this reason, even if it is the structure in which a plurality of terminal energization holes for inserting a plurality of energization terminals are formed in the housing member, the operation of inserting each energization terminal into each terminal insertion hole at once can be easily performed. The mounting workability of the housing member can be improved.

  In addition, the electric heater device assembled as described above is used by connecting a connector to a connector connecting portion formed on a housing member, and connecting a plurality of energizing terminals protruding from the connector connecting portion and a power source. .

  When the connector is connected, an operating force when the connector is inserted is input to the energizing terminal due to friction with the terminal on the connector side.

  At this time, in the energizing terminal having the bent portion among the energized terminals, the input operation force acts in a direction to change the bending angle with respect to the bent portion. The bent portion is prevented from being deformed by the stopper portion of the stopper member arranged along the bent portion.

  Therefore, it is possible to prevent the occurrence of connection failure due to deformation of the bent portion of the energizing terminal, and it is possible to suppress restrictions on the material and plate thickness of the energizing terminal for preventing deformation.

  As described above, in the electric heater device of the present invention, the mounting workability of the housing member can be improved, and the deformation of the energizing terminal when the connector is connected is prevented by means having a high degree of freedom in designing the energizing terminal. can do.

  In the invention according to claim 2, since the holding member and the connecting rod are integrally formed with the stopper member, the stopper member can be formed by integral molding with resin, and the moldability is excellent.

  In the third aspect of the invention, the stopper member is attached to the position frame for holding the PTC element inserted into the tube member. Since this position frame is a member formed in the shape of a long plate of insulating resin, it is less likely to be elastically deformed than the tube member, and can be mounted more firmly than when the stopper member is mounted on the tube member. it can. Thereby, the performance which keeps the space | interval of a heat generating member and an electricity supply terminal constant can be improved.

  Also, the position frame is formed with a restriction claw that engages with the stopper member and restricts movement in the other end direction, so it can be formed integrally when the position frame is molded, and the movement of the stopper member is restricted. It is easy to form the means to perform, and the position where the restricting means is provided can be formed with high accuracy at a preset position with high accuracy.

  In the invention according to claim 4, since the sheet-like electrode is engaged with the engaging claw member formed on the position frame, the input to the energizing terminal when the connector is connected or the like is applied to the position frame with respect to the electrode. It is possible to restrict the displacement of the electrode when acting in the direction away from the contact, thereby restricting the movement of the energizing terminal and preventing the occurrence of poor connection.

  In addition, since this engaging claw member also serves as a restricting means for restricting the movement of the stopper member, the installation pace of the configuration for performing such restriction is reduced compared to molding both of them separately, The apparatus can be made compact.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  The electric heater device of this embodiment includes a PTC element (72) that generates heat by energization, a heating member (70) that includes electrodes (73, 74) that energize the PTC element (72), and the heating member ( 70) and a heater laminated body (10) in which a plurality of heat radiating members (80) that radiate heat are stacked, and one end of the heater laminated body (10) is connected to the electrodes (73, 74). A housing member (20) in which a plurality of terminals (76, 77) are arranged side by side in the laminating direction, and a connector connecting portion (22) for connecting a power supply side connector to these energizing terminals (76, 77) is formed. Is mounted between at least one of the energization terminals (76, 77) and the electrode (73, 74) at a substantially right angle in the laminating direction so that an interval between the energization terminals (76, 77) is determined. End side and tip And an electric heater device provided with a bent portion (77a) changed in the above, the one end side of the heater laminate (10) straddling the plurality of heating members (70), and the The stopper member (90) is mounted with its movement in the other end direction restricted with respect to the heat generating member (70), and this stopper member (90) is formed so as to be able to keep a constant interval between the heat generating members (70). In addition, the stopper member (90) is disposed along the bent portion (77a) in a mounted state on the heat generating member (70), and the bent portion (77a) is an energization terminal when the connector is connected. The electric heater device is characterized in that a stopper portion (92a) for restricting displacement by an input to (77) is formed.

  Below, based on FIGS. 1-18, the electric heater apparatus A of Example 1 of this Embodiment is demonstrated.

  The electric heater device A according to the first embodiment is applied to the vehicle air conditioning unit ACU shown in FIG.

  The vehicle air conditioning unit ACU includes a blower fan 2, an evaporator 3, and a heater core 4 in order from the air intake 1 a side of the unit housing 1. In addition, an air mix door 5 is provided in the vicinity of the heater core 4, and the mixing ratio of the cold air that has passed through the evaporator 3 and the warm air that has passed through the heater core 4 can be arbitrarily adjusted by adjusting the opening degree of the air mix door 5. And the temperature of the air blown from each of the air outlets 1b, 1c, 1d is adjustable.

  The electric heater device A according to the first embodiment generates heat when energized, and is arranged in parallel with the heater core 4, and is energized to generate heat when the heat generation temperature of the heater core 4 is insufficient. Used for vehicles with relatively low cooling water for propulsion devices (not shown) such as diesel vehicles.

  Below, the detail of the electric heater apparatus A of Example 1 is demonstrated.

  As shown in FIG. 2, the electric heater device A is formed by attaching a front housing (housing member) 20 and an end housing 30 to both ends of the heater laminate 10 in the longitudinal direction (arrow CD direction). .

  The heater laminate 10 has three heater units 40, 40, 40 stacked vertically with support plates 50, 50 interposed therebetween (the arrow LD direction in the figure is hereinafter referred to as the vertical direction). It is formed by attaching end plates 60, 60 on the top and bottom.

  The heater unit 40 is formed by stacking heat radiating fin members (heat radiating members) 80 and 80 on top and bottom of the heat generating member 70.

  The heat radiating fin member 80 is formed in a wave shape as shown in FIG. 3 by a metal plate material (for example, a plate material made of aluminum or aluminum alloy) having excellent thermal conductivity, and the heat transferred from the heat generating member 70. Is transmitted to the air flowing in the width direction that is the direction of the arrow FL.

  The front housing 20 and the end housing 30 are formed of a material excellent in electrical insulation and heat resistance, for example, fiber reinforced PBT (Polybutylene terephthalate). This fiber-reinforced PBT has excellent dimensional stability due to its low water absorption coefficient and thermal expansion coefficient, and also has excellent electrical insulation properties, small change in electrical properties due to moisture absorption, and high dielectric breakdown voltage. is doing.

  The front housing 20 is formed with a box-shaped laminated body insertion portion 21 and a connector connection portion 22.

  As shown in FIG. 11, the laminated body insertion portion 21 includes a concave insertion recess 21 a into which one end of the heater laminated body 10 is inserted when the laminated body 10 is attached to the heater laminated body 10. It is formed long in the LD direction). Further, a tube insertion groove 20a, a support plate insertion groove 20b, an end plate insertion groove 20c, and a plate retaining claw 20d, which will be described later, are formed in the insertion recess 21a.

  In the end housing 30, a concave insertion recess 31 a for inserting the other end of the heater laminate 10 when attached to the heater laminate 10 is formed long in the lamination direction of the heater laminate 10 (arrow LD direction). Yes. In addition, a tube insertion groove 30a, a support plate insertion groove 30b, an end plate insertion groove 30c, and a plate retaining claw 30d, which will be described later, are formed in the insertion recess 31a.

  Further, in the front housing 20, the connector connecting portion 22 is formed with an insertion recess 22 a into which an unillustrated connector for supplying power is inserted. In addition, as shown in FIG. 14, the laminated body insertion part 21 and the connector connection part 22 are partitioned off by the vertical wall 23, The detail is mentioned later.

  Next, the heat generating member 70, the support plate 50, and the end plate 60 described above will be described in detail in order.

  As shown in FIG. 4, the heat generating member 70 includes a position frame 71, a plurality (four in this embodiment) of PTC elements 72, a first contact sheet (electrode) 73, and a second contact sheet (electrode) 74. And the tube member 75 is provided.

  The position frame 71 is a plate in which a plurality of PTC elements 72 are arranged in the longitudinal direction (arrow CD direction) at predetermined intervals, and is formed in a plate shape from a material excellent in insulation and heat resistance (for example, polyamide). As shown in FIG. 5, notches 71a, 71a, 71a, 71a for holding the PTC element 72 are formed at four locations.

  Further, a pair of upper and lower engaging claw members 71b and 71b are integrally formed at both ends of the position frame 71 in the longitudinal direction. FIG. 6 shows the set of engaging claw members 71b and 71b in an enlarged manner, and they are arranged from the main body of the position frame 71 with a gap set in advance in the vertical direction. Then, both contact sheets 73 and 74 are inserted into the gaps, respectively, so that the engaging claw members 71b and 71b are in contact with the contact sheets 73 and 74, respectively. Engagement is performed so as to regulate relative displacement away in the direction of arrow LD (see FIG. 4).

  The PTC element 72 is a semiconductor ceramic mainly composed of barium titanate (BaTiO3), generally called PTC (Positive Temperature Coefficient), and has a characteristic of generating heat when energized. In the first embodiment, as shown in FIG. 4, it is formed in a substantially rectangular plate shape, and is disposed by being fitted into the notch 71 a of the position frame 71.

  As shown in FIG. 7, the first contact sheet 73 and the second contact sheet 74 are arranged with the PTC element 72 sandwiched from above and below, and the contact sheets 73 and 74 are respectively connected to the plus and minus of the power source outside the figure. By connecting, the PTC element 72 is energized.

  Therefore, in order to connect to a connector not shown, as shown in FIG. 4, the first contact sheet 73 and the second contact sheet 74 have first end portions on the side where the front housing 20 is mounted, respectively. The energizing terminal 76 and the second energizing terminal 77 are integrally formed.

  That is, as shown in FIG. 4A, the end portion of the first contact sheet 73 (the end portion on the side where the front housing 20 is mounted) extends straight in the direction of the arrow CD to the outside of the tube member 75. The first energization terminal 76 is formed in this portion.

  Further, as shown in FIG. 4B, the second energizing terminal 77 is integrated with a portion extending outward of the tube member 75 at the end of the second contact sheet 74 on the side where the front housing 20 is mounted. Is formed.

  Further, a bent piece (bent portion) 77 a is provided between the second energizing terminal 77 and the second contact sheet 74. The bent piece 77a is formed by bending the second energizing terminal 77 so that the interval between the second energizing terminal 77 and the first energizing terminal 76 matches the terminal interval on the connector side (not shown). . Therefore, in the present Example 1, the 2nd electricity supply terminal 77 is formed in the substantially L-shaped cross-sectional shape seeing from the side by the bending piece 77a of the base end side, and the terminal part 77b of the front end side, and is bent. In the drawing of the piece 77 a, it is bent at substantially right angles at the upper and lower end positions, and the terminal portion 77 b extends substantially in parallel with the first energizing terminal 76.

  The first energizing terminal 76 described above is provided in all the heat generating members 70, 70, 70, whereas the second energizing terminal 77 having the shape shown in FIG. 4 is the first and second from the top in FIG. The heat generating members 70 are provided.

  Then, at the end of the second contact sheet 74 of the third heat generating member 70 from the top, as shown in FIG. 8, the energization for press contact for the purpose of press contact with the second energization terminal 77 arranged thereon is provided. A terminal 78 is provided, details of which will be described later.

  Further, for the purpose of reducing the weight and size of the contact sheets 73 and 74, the thickness of the contact sheets 73 and 74 is approximately ½ the thickness of the terminal portions 77b of the first energizing terminal 76 and the second energizing terminal 77. Is formed. That is, the terminal portions 77 b of the first energizing terminal 76 and the second energizing terminal 77 are formed by folding and overlapping the portions forming the general portions of the contact sheets 73 and 74. , 77 are formed to the required plate thickness.

  8 is entirely formed to have the same thickness as that of the general portion of the second contact sheet 74. As shown in FIG.

  As shown in FIG. 7, the tube member 75 is formed in a substantially rectangular cylindrical shape that is short in the up-down direction, and is formed in a vertically divided structure on the male tube 75a and the female tube 75b.

  An engagement flange 75c is bent at the opening edge of the female tube 75b toward the inside of the opening.

  On the other hand, the opening edge of the male tube 75a is formed with an engagement flange 75d having a substantially U-shaped cross section that is inserted inside the opening of the female tube 75b and faces the engagement flange 75c substantially in parallel.

  When the engagement flange 75d of the male tube 75a and the engagement flange 75c of the female tube 75b are engaged in the up-down direction, the tube member 75 is formed in a cylindrical shape.

  In addition, an elastic member 79 that presses in the direction in which the distance between the flanges 75c and 75d is increased is press-fitted between the engagement flange 75c and the engagement flange 75d. The elastic force generated by the press-fitting of the elastic member 79 urges the space between the general portion of the male tube 75a and the general portion of the female tube 75b to become narrow as indicated by arrows a and a, and both tubes 75a, The contact pressure of 75b, both contact sheets 73 and 74, and the PTC element 72 is obtained.

  The elastic member 79 is formed of an insulating elastic material such as resin or rubber, and lip portions 79a and 79a are integrally formed as shown in FIG. 9 which is an enlarged view of the main part of FIG. ing. The lip portions 79a and 79a are inserted between the distal end surfaces of the respective engagement flanges 75c and 75d and the other tubes 75a and 75b, and the tubes 75a and 75b are in the direction perpendicular to the dividing direction from the combined state (arrow FL When the relative displacement is made in the direction), the tip surfaces of the engagement flanges 75c and 75d and the other tubes 75a and 75b are prevented from coming into contact with each other and short-circuiting. In the drawing, the distance L1 between the lower surface of the engagement flange 75c and the male tube 75a facing the lower surface of the engagement flange 75c is also secured to prevent the short circuit.

  Both ends of the heat generating member 70 having the above-described configuration are provided in a tube insertion groove 30a formed in the end housing 30 shown in FIG. 10 and tube insertion grooves 20a, 20a formed in the front housing 20 shown in FIG. 20a is supported in a state of being inserted until its tip abuts against a groove bottom (not shown).

  Returning to FIG. 2, the support plate 50 is a plate (for example, made of aluminum / aluminum alloy) having excellent thermal conductivity that supports the heat dissipating fin members 80, 80 positioned between the heater unit 40 and the heater unit 40. Plate).

  The support plate 50 is formed in a band plate shape as shown in FIG. 12, and position restricting claws 50a and 50a for restricting the longitudinal position of the radiating fin member 80 are formed vertically at both ends in the longitudinal direction. ing.

  Further, in the support plate 50, eight position restricting flanges 50b and 50c for restricting the position of the radiating fin member 80 in the width direction are formed at both end edges in the width direction (arrow FL direction). In the case where the position restricting flange 50b bent upward and the position restricting flange 50c bent downward are alternately arranged in the longitudinal direction and overlapped in the arrow FL direction, the bent They are arranged so that the directions are reversed.

  As for this support plate 50, both ends in the longitudinal direction have a support plate insertion groove 30b formed in the end housing 30 shown in FIG. 10, and a support plate insertion groove 20b formed in the front housing 20 shown in FIG. Are supported by being inserted respectively.

  Returning to FIG. 2, the end plate 60 is a strip-shaped metal plate that forms upper and lower edges of the heater laminate 10, and is formed of, for example, a galvanized steel plate.

  As shown in FIG. 13, the end plate 60 has a substantially C shape in which position restricting flanges 60a and 60a for restricting relative movement of the radiating fin member 80 in the arrow FL direction are formed at both end edges in the arrow FL direction. It is formed in the longitudinal cross-sectional shape.

  A pair of retaining holes 60b and fin regulating claws 60c are formed at both ends of the end plate 60 in the longitudinal direction. The retaining hole 60b is formed in the end plate 60 in a substantially rectangular shape.

  The fin restricting claw 60c is cut and raised in the same direction as the rising direction of the position restricting flange 60a. The fin restricting claw 60c is engaged with the end of the heat dissipating fin member 80 in the longitudinal direction so that the heat dissipating fin member 80 is relative to the arrow CD direction. Restrict movement.

  These end plates 60 are respectively inserted into an end plate insertion groove 30c formed in the end housing 30 shown in FIG. 10 and an end plate insertion groove 20c formed in the front housing 20 shown in FIG. Yes. In this inserted state, the plate retaining claw 30d formed on the end housing 30 shown in FIG. 10 and the plate retaining formed on the front housing 20 shown in FIG. By engaging the retaining claws 20d, the relative movement of the end plate 60 in the longitudinal direction with respect to both the housings 20 and 30 is restricted.

  Next, the relationship between the above-described energization terminals 76 and 77 and the press-contact energization terminal 78 and the front housing 20 will be described.

  As shown in FIG. 14, five terminal insertion holes 24, 24, 24, 24, 25 for inserting the respective current-carrying terminals 76, 77 are formed in the vertical wall 23 that partitions the laminated body insertion part 21 and the connector connection part 22. It is formed side by side in the vertical direction.

  That is, as described above, among the three heat generating members 70, the third heat generating member 70 from the top does not have the second current-carrying terminal 77 intended for connection with a connector outside the figure, so that the terminal insertion hole The total number of 24 and 25 is 5.

  To explain this, as shown in FIG. 15, among the three heat generating members 70, the heat generating member 70 arranged third from the top is the first and second heat generating members 70, 70 from the top. The upper and lower electrodes are arranged upside down, and the current-carrying terminal 78 for pressure contact of the third heat generating member 70 is pressure-contacted to the second current-carrying terminal 77 of the second heat generating member 70 from above, and both are combined into one. An energization terminal 778 is formed. When connecting a connector (not shown), the three first energization terminals 76, 76, and 76 are connected to one of positive and negative polarities, and the second energization terminal 77 and the connection energization terminal 778 are positive and negative. The other contact polarity is also connected, and the press-connecting energizing terminal 78 is also connected to the same polarity as the second energizing terminal 77.

  In the connection energization terminal 778, the second energization terminal 77 functions as an energization terminal connected to the connector.

  As shown in FIG. 8, the press-contact energizing terminal 78 rises in a direction away from the first energizing terminal 76, and the leading end of the rising portion 78 a is substantially parallel to the first energizing terminal 76. And an abutting portion 78b extending in a substantially inverted J shape.

  As shown in FIG. 8 (b), the rising portion 78 a is at a substantially right angle with respect to the second contact sheet 74, and the contact portion 78 b is positioned above the second energization terminal 77. The terminal portion 77b is formed in such a length as to be press-contacted. Further, as shown in FIG. 8A, the rising portion 78a is inclined so that the contact portion 78b is in a state of being slightly separated from the terminal portion 77b before the front housing 20 is mounted. θa is set to an angle smaller than 90 degrees.

  The contact portion 78b is formed in a length that does not reach the terminal insertion hole 25, and has a curved shape that protrudes upward so as to be in a line contact state when contacting the terminal portion 77b. Has been.

  Returning to FIG. 14, the description of the front housing 20 will be continued. In the stacked body insertion portion 21 of the vertical wall 23 of the front housing 20, a pressure receiving protrusion 26 as a pressure receiving portion is provided above the fourth terminal insertion hole 25 from the top. Is formed so as to project in the direction of the arrow CD in the figure, and a pressing deformation projecting piece 27 as a pressing member is formed so as to project substantially parallel to the pressure receiving projecting piece 26 at a lower position.

  The pressure receiving protrusion 26 is formed so as to be disposed along the upper surface of the terminal portion 77b of the second energizing terminal 77 of the second heating member 70 from the top in the assembled state shown in FIG. An obliquely downward guide surface 26a is formed on the lower side of the tip.

  In addition, guide surfaces 24 a and 24 a are formed on the upper and lower sides of the laminated body insertion portion 21 in the other terminal insertion holes 24 excluding the terminal insertion holes 25 adjacent to the pressure receiving protrusions 26. In the terminal insertion hole 25 provided adjacent to the pressure receiving protrusion 26, a guide surface 25a is formed only on the lower side.

  Furthermore, as shown in FIG. 16, a stopper member 90 is attached to the heater laminate 10 at the end of each heat generating member 70 on the side where the front housing 20 is attached.

  This stopper member 90 is formed of a material excellent in electrical insulation and heat resistance, such as fiber reinforced PBT, as in the case of the housings 20 and 30, and as shown in FIG. 91 and 91 are integrally formed in a shape in which two rod portions 92 and 92 are coupled.

  The sandwiching portion 91 is integrally formed with a pair of sandwiching pieces 91b and 91b that are arranged vertically opposite to each other with the insertion space 91a interposed therebetween, and a pressing piece 91c in which one end of each sandwiching piece 91b and 91b is continuous. It is formed in a substantially U-shaped cross-sectional shape. The insertion space 91a is an end portion of the heat generating member 70 and can sandwich a portion protruding from the tip of the tube member 75, that is, a portion where both the contact sheets 73 and 74 overlap on both upper and lower sides of the position frame 71. It is formed at intervals. An engaging claw 91d that engages with the edge of the heat generating member 70 when the heat generating member 70 is inserted into the insertion space 91a is formed at the tip of each clamping piece 91b.

  Therefore, when the end of the heat generating member 70 is inserted into the insertion space 91a, the heat generating member 70 is restricted from relative movement in the width direction (arrow FL direction) by the holding piece 91c and the engaging claws 91d and 91d. The

  The rod portion 92 of the stopper member 90 is formed in a rectangular column shape having a rectangular cross section, and a flat stopper surface 92a formed flush with the clamping portion 91 is formed on one side surface facing the front housing 20 side. Yes.

  In the tube mounting state in which the end portions of the heat generating members 70 are inserted into the respective holding portions 91 as shown in FIG. 16, the holding portions 91 are connected to the engaging claw members 71 b of the position frame 71 in the longitudinal direction ( The stopper surface 92a is formed so as to abut against the bent piece 77a of the second energizing terminal 77 in this state.

  Next, the assembly procedure of the electric heater device A according to the first embodiment will be described.

 First, using an unillustrated jig or the like, the end plate 60, the radiating fin member 80, the heat generating member 70, the heat radiating fin member 80, the support plate 50, the heat radiating fin member 80, the heat generating member 70, and the heat radiating fin member 80 in order from the bottom. The heater laminate 10 is formed by stacking the support plate 50, the radiating fin member 80, the heat generating member 70, the radiating fin member 80, and the end plate 60.

  Next, the end housing 30 is attached to one end of the heater laminate 10 as shown in FIG. 15, and then the stopper member 90 is attached to the other end of the heating members 70, 70, 70 of the heater laminate 10. Finally, the front housing 20 is mounted to complete the assembly.

  When the front housing 20 is assembled, the pressure contact energizing terminal 78 of the heat generating member 70 shown in the third from the top in FIG. 16 is brought into contact with the second energizing terminal 77 constituting the connection energizing terminal 778, and the contact pressure thereof. The deformation which raises is made.

  Here, the deformation operation of the pressure contact energizing terminal 78 in the connection energizing terminal 778 will be described.

  The bent portion 77a of the second energizing terminal 77 is raised at a substantially right angle, whereas the rising portion 78a of the energizing terminal 78 for pressure contact has an initial inclination angle θa of 90 as shown in FIG. It is formed at an angle smaller than degrees.

  That is, when the heater laminate 10 is assembled, the energization terminals 76 and 77 are arranged at intervals that match the intervals between the terminal insertion holes 24 and 25 provided in the vertical wall 23 of the front housing 20. In the assembled state of the heater laminate 10, the rising portion 78a is inclined at an inclination angle θa, and the abutting portion 78b of the energizing terminal 78 for press contact is close to the second energizing terminal 77 disposed above it. Has been.

  In this state, since the rising portion 78a is not elastically deformed, an elastic force that widens the interval does not act on the two energizing terminals 76 and 77 arranged on both sides of the press-contact energizing terminal 78. There is no need for a dedicated tool or process for maintaining the interval between the energizing terminals 76 and 77 at the interval between the terminal insertion holes 24 and 25.

  Therefore, as shown in FIG. 15, when the end housing 30 is attached to one end of the heater laminate 10, next, the front housing 20 is attached to the other end of the heater laminate 10 while moving in the arrow CD direction.

  At this time, the current-carrying terminals 76 and 77 projecting from the heater laminate 10 are inserted into the terminal insertion holes 24 and 25 of the front housing 20, but the positions of the current-carrying terminals 76 and 77 and the terminal insertion holes 24 and 25 Even if the position 25 is slightly deviated in the vertical direction, it is smoothly guided by the guide surfaces 24a and 24a of each terminal insertion hole 24, the guide surface 25a of the terminal insertion hole 25, and the guide surface 26a of the pressure receiving protrusion 26. Plugged into.

  When the energization terminals 76 and 77 are inserted into the terminal insertion holes 24 and 25, as shown in FIG. 8, the leading end surface of the pressing deformation projecting piece 27 has the rising portion 78 a of the press-contact energization terminal 78. Press and elastically deform the tilt angle θa in the rising direction. Due to this elastic deformation, the abutting portion 78 b of the pressure contact energizing terminal 78 is brought into pressure contact with the terminal portion 77 b of the second energizing terminal 77 constituting the connection energizing terminal 778.

  Further, since the pressure receiving protrusion 26 is disposed in contact with the upper side of the terminal portion 77b of the second energizing terminal 77, the terminal portion 77b of the second energizing terminal 77 is prevented from being deformed by this pressure contact. Thus, deformation and pressure contact of the pressure contact energizing terminal 78 are ensured.

  Note that the pressing deformation projecting piece 27 is set such that the dimension in the direction of the arrow CD is such that the inclination angle θb of the pressure contact energizing terminal 78 is substantially perpendicular at the end of assembly shown in FIG. Yes.

  At this time, the heating member 70 is mounted with the stopper member 90, and the input in the arrow CD direction from the pressing deformation projecting piece 27 to the pressure contact energizing terminal 78 is received by the stopper surface 92 a of the stopper member 90. Thus, the pressure contact energizing terminal 78 is prevented from being excessively deformed. Incidentally, the input to the stopper member 90 is received by the end housing 30 because the position frame 71 of the heat generating member 70 with which the stopper member 90 is engaged is abutted against the end housing 30.

  A connector (not shown) is connected to the electric heater device A of Example 1 assembled as described above. When this connector is connected, an input is received in the direction of the arrow CD with respect to the energization terminals 76 and 77. At this time, since the first energization terminal 76 is formed linearly and continuously with the first contact sheet 73, this input is received by the end housing 30 at the other end.

  On the other hand, the second energizing terminal 77 has a bent piece 77a bent in an L shape, and the input in the arrow CD direction to the terminal portion 77b of the second energizing terminal 77 is the bent piece 77a. Acts in the direction of increasing the startup angle. Here, in the first embodiment, since the stopper surface 92a of the stopper member 90 is provided in contact with the back surface of the bent piece 77a of the second energizing terminal 77, the force acting on the bent piece 77a is applied to the stopper member 90. And the bent piece 77a is prevented from being deformed.

  Thereby, it is possible to prevent the occurrence of contact failure due to the deformation of the bent piece 77a of the second energizing terminal 77.

  As described above, in the electric heater device according to the first embodiment, a total of five electrical connections to the first and second contact sheets 73 and 74 provided on the three heat generating members 70 are provided. As in the case of the first and second energization terminals 76 and 77 of the book, the space required for connection is reduced, and the distance between the energization terminals 76 and 77 is secured.

  Furthermore, in order to reduce the number of second energization terminals 77, in the first embodiment, the second contact sheet 74 of the third heat generating member 70 from the top is connected to the second energization terminal 77 of the second heat generating member 70 from the top. A pressure contact energizing terminal 78 is provided for pressure contact with each other, and the pressure contact between the two is performed in accordance with the mounting operation of the front housing 20.

  For this reason, compared with the case where the current-carrying terminal 78 for pressure welding and the second current-carrying terminal 77 are connected in advance by welding, or both are connected using connecting parts, the work man-hours and the number of parts are reduced. Excellent workability and economy.

  In addition, when the heater laminate 10 is formed, it is possible to save dedicated parts and labor compared to the case where the press-contacting current-carrying terminal 78 and the second current-carrying terminal 77 are pressed. That is, in the case where the pressure contact energizing terminal 78 and the second energizing terminal 77 are brought into pressure contact with each other when the heater laminated body 10 is formed, as shown in FIG. The energizing terminal 78 for pressure contact is set so that the distance between the second energizing terminal 77 and the first connecting terminal 76 that is also wide is equal to the distance between the terminal insertion holes 24 and 24 as shown in FIG. It is necessary to press contact by elastic deformation. In the state shown in FIG. 18 (b), the heat generating members 70, 70 having these are about to be separated by the restoring force generated by elastically deforming the pressure contact energizing terminal 78. A dedicated component or tool for maintaining the energization terminal 78 in an elastically deformed state is required, and work for that purpose is required.

  In the first embodiment, when the front housing 20 is mounted, the pressure contact energizing terminal 78 is pressed to be deformed, so that the elastic state of the pressure contact energizing terminal 78 is maintained before the front housing 20 is mounted. Therefore, the dedicated parts and tools for that purpose and the work thereof are unnecessary, and the workability is excellent and the economy is also excellent.

  Moreover, in the first embodiment, as described above, since the elastic deformation of the pressure contact energizing terminal 78 is performed by the elastic deformation in which the inclination angle of the rising portion 78a is increased, the pressure contact energizing terminal 78 is in pressure contact. It is easy to form a state in which the front housing 20 is not in pressure contact with the mounting operation direction of the front housing 20, and the above-described effects of excellent workability and economy can be easily exhibited.

  In addition, in the first embodiment, when the pressing deformation projecting piece 27 of the front housing 20 elastically deforms the pressure contact energizing terminal 78 and the pressure contact energizing terminal 78 is pressed against the second current energizing terminal 77, the second The pressure receiving protrusions 26 arranged along the upper surface of the energizing terminal 78 receive this pressure contact force.

  Therefore, it is possible to prevent the second energization terminal 77 of the connection energization terminal 778 from being deformed by the pressure contact force of the pressure contact energization terminal 78, and it is possible to prevent the occurrence of problems such as poor contact due to this deformation. it can.

  Furthermore, since the press contact energizing terminal 78 is formed thinner than the other energizing terminals 76 and 77, the operation of making the press contact energizing terminal 78 elastically deformed and press contacting can be easily performed. .

  In the first embodiment, the heat generating member 70 in which the first and second contact sheets 73 and 74 for plus and minus and the PTC element 72 are inserted into the tubular tube member 75 is used, and the PTC element 72 is required. Electrical contact was made within the heat generating member 70.

  Therefore, it is easier to avoid a problem that a short circuit or the like occurs due to contact with other metal members, compared to the case where a heat radiating member such as the heat radiating fin member 80 is used as an electrode.

  In addition, the first and second contact sheets 73 and 74 are inserted into the tube member 75, but the second energizing terminal 77 is bent in an L shape, so that the energizing terminals 76 and 77 are in contact with each other. Defects are less likely to occur. Further, the pressure contact with the pressure contact energizing terminal 78 is facilitated, and the elastic deformation allowance of the pressure contact energizing terminal 78 is easily secured.

  In addition, in the first embodiment, the radiating fin member 80 is prevented from coming off in the direction of the arrow FL, and the position restriction flanges 50b and 50c formed on the support plate 50 shown in FIG. 12 and the position restriction of the end plate 60 shown in FIG. As is done by the flanges 60a, 60a, the heat generating member 70 is configured not to be provided with a flange that hinders the flow of air for heat exchange.

  Thus, the structure which prevents the radiation fin member 80 from coming into contact with the air flow is disposed at a position farthest from the heat generating member 70 which is a heat source in the heat radiation fin member 80, and the heat generation which is a heat source of the heat radiation fin member 80. There is nothing that obstructs the air flow at the portion in contact with the member 70.

  Therefore, the heat exchange efficiency of the radiating fin member 80 is improved as compared with the case where a flange for preventing the radiating fin member 80 from being removed is formed on the heat generating member 70 side.

  In addition, in the first embodiment, when the position restricting flanges 50b and 50c are formed on the support plate 50, the upright directions of the flanges are alternately formed. Therefore, it is possible to prevent the radiating fin members 80 and 80 from coming off, reduce the number of parts, and reduce the weight and cost.

  Further, in the first embodiment, a stopper member 90 is mounted on the heat generating member 70, the second energizing terminal 77 bent in an L shape, the bent piece 77a of the press-contact energizing terminal 78, and the back surface of the rising portion 78a. The stopper surface 92a is disposed in contact with or in close proximity to. As a result, even when a load is applied in the direction of the arrow CD to the second energizing terminal 77 and the pressing energizing terminal 78 during the pressing operation of the pressing energizing terminal 78 and the connector connecting operation, the bent piece 77a. Further, it is possible to prevent the riser 78a from being deformed by being excessively bent.

  Therefore, the occurrence of poor connection can be prevented by this deformation. In particular, in the first embodiment, in order to reduce the weight, each contact play 73, 74 is thinner than each energizing terminal 76, 77, and the rising portion 78a of the energizing terminal 78 for press contact is used. This is particularly effective in such a configuration.

  Moreover, when the heater laminate 10 is assembled, the position of the end portions of the three heat generating members 70, 70, 70 on the front housing 20 side in the stacking direction (arrow LD direction) is positioned by the stopper member 90. I made it. For this reason, the intervals between the current-carrying terminals 76 and 77 are also maintained at predetermined intervals, and it is smooth to insert the current-carrying terminals 76 and 77 into the terminal insertion holes 24 and 25, and the stopper member 90 is not provided. Compared to the case, the mounting operation of the front housing 20 can be performed smoothly.

  In the first embodiment, the tube member 75 of the heat generating member 70 is a two-part structure of a male tube 75a and a female tube 75b, and is an elastic member that is interposed between the tubes 75a and 75b and biases it. 79 is made of an insulating material, and the first and second contact sheets 73 and 74 are brought into direct contact with both the tubes 75a and 75b, thereby eliminating the insulator interposed between at least one of them. did.

  For this reason, the number of components of the heat generating member 70 can be suppressed, and the cost and the number of assembling steps can be reduced.

  Furthermore, the thickness of the heat generating member 70 and the electric heater device A can be reduced by suppressing the plate thickness of the heat generating member 70 (dimension L2 in FIG. 7). Or if a device is the same size, the dimension of the radiation fin member 80 can be enlarged relatively, and the improvement of heat exchange efficiency can be aimed at.

  In addition, since the first and second contact sheets 73 and 74 are in direct contact with both the tubes 75a and 75b, it is possible to improve heat transfer performance and improve energy efficiency.

  Further, in the connection energization terminal 778, only the second energization terminal 77 is inserted into the terminal insertion hole 25, so that the energization terminal of the connection energization terminal 778 can be formed with the same plate thickness as the other energization terminals 76 and 77. Manufacturing is easy.

  Next, an electric heater device according to Example 2 of the embodiment of the present invention will be described with reference to FIG. Since the second embodiment is a modification of the first embodiment, only the difference will be described, and the description of the same configuration and operational effects as the first embodiment will be omitted.

  The difference from the first embodiment is the configuration of the tube member 275 of the heat generating member 270. That is, FIG. 19 is a cross-sectional view of the heat generating member 270, and an engaging claw 275e is raised at the tip of the engaging flange 275d of the male tube 275a. An engaging claw 275f is also raised at the tip of the engaging flange 275c of the female tube 275b. The elastic member 279 is disposed in a substantially rectangular space formed by both the engaging flanges 275c and 275d and the both engaging claws 275e and 275f.

  Therefore, when the male tube 275a and the female tube 275b are relatively displaced in the width direction (arrow FL direction), one of the two engaging claws 275e and 275f is placed on one of the two elastic members 279 arranged on the left and right in the drawing. Is engaged, so that the relative displacement is restricted, and both the tubes 275a and 275b are prevented from being in electrical contact. The elastic member 279 is formed of an insulating material as in the first embodiment.

  In the second embodiment, the elastic member 279 is not formed with the lip portion 79a, and the lip portion 79a is inserted between the distal ends of the engaging flanges 275c and 275d and the male and female tubes 275a and 275b opposed to the lip portion 79a. This eliminates the need for the work to be performed and improves workability.

  Moreover, in Example 2, since it is the same as that of Example 1 except the effect regarding the heat generating member 270, description is abbreviate | omitted.

  Next, an electric heater device according to Example 3 of the embodiment of the present invention will be described with reference to FIG. Since the third embodiment is a modification of the first embodiment, only the differences will be described, and the description of the same configuration and operational effects as the first embodiment will be omitted.

  In the third embodiment, the configuration of the heat generating member 370 is different from the first and second embodiments. That is, in the heat generating member 370, the insulating sheet 300 is interposed over the entire length in the longitudinal direction between the female tube 75 b of the tube member 75 and the second contact sheet 74.

  Therefore, in Example 3, it is not necessary to electrically insulate the male tube 75a and the female tube 75b, and a metal member is used as the elastic member 379.

  Therefore, in the present Example 3, the tube member 75 becomes the same polarity over the perimeter, and the radiation fin members 80 and 80 contacted with this also have the same polarity.

  Therefore, in the vehicle air conditioning unit ACU, even if a metal member such as a clip falls from the air outlets 1b to 1d and comes into contact with the heat dissipating fin member 80 or the like, there is no possibility of an electrical short circuit.

  Note that the third embodiment is the same as the first embodiment except for the effects related to the heat generating member 370, and a description thereof will be omitted.

  Next, an electric heater device according to Example 4 of the embodiment of the present invention will be described with reference to FIG. Since the fourth embodiment is a modification of the third embodiment, only the difference will be described, and the description of the same configuration and operation effect as the third embodiment will be omitted.

  The fourth embodiment is a modification of the third embodiment, and the configuration of the heat generating member 470 is different from the third embodiment. That is, the tube member 475 is integrally formed on the entire circumference by bending one metal plate to form a caulking portion 475a at both ends.

  In the fourth embodiment, the number of parts can be reduced as compared with the third embodiment.

  In the fourth embodiment, since the other functions and effects are the same as those of the third embodiment, the description thereof is omitted.

  As mentioned above, although embodiment and Example 1-4 of this invention were explained in full detail with reference to drawings, the concrete structure is not restricted to this embodiment and Example 1, and the summary of this invention is shown. Design changes that do not deviate are included in the present invention.

  For example, in the first to fourth embodiments, an example in which the heater unit 40 is formed by stacking three stages as the heater stack 10 is shown, but a configuration in which a plurality of stacks other than three stages such as two stages or four stages are stacked may be used. Good. In this case, the stopper member 90 also appropriately sets the number of the sandwiching portions 91 and the rod portions 92 according to the number of the heating members 70 included in the heater laminate 10.

  Moreover, in Examples 1-4, although the bending piece 77a as a bending part showed the example formed between the 2nd electricity supply terminal 77 and the 2nd contact sheet 73, the 1st electricity supply terminal 76 and the 1st One contact sheet 73 may also be provided.

  In addition, the bent piece 77a has been illustrated as being formed at the end of the second energizing terminal 77 that is thicker than the second contact sheet 74. However, if the required strength is obtained, the thickness is You may form in the part which forms the 2nd contact sheet 74 of the thin side.

  In the first to fourth embodiments, the stopper member 90 is mounted on the position frame 71 of the heat generating member 70. However, as long as the interval between the heat generating members 70 can be kept constant, other members such as the tube member 75 are used. You may make it mount | wear to the structure of.

  In the first to fourth embodiments, the plate-like contact sheets 73 and 74 are used as the electrodes, and the current-carrying terminals 76 and 77 and the bent portions are also plate-shaped, and correspondingly, the stopper portion of the stopper member 90 is used. Is also a flat stopper surface 92a. However, the shape of the stopper portion may be set according to the shape of the bent portion and the energization terminal, and other shapes such as a curved cross-sectional shape and a rod shape may be used.

  Moreover, in Examples 1-4, although what was formed in the L-shape was shown as the 2nd electricity supply terminal 77 which is the connection other party of the press-contact electricity terminal 78, the 2nd electricity supply terminal 77 of a connection other party is 1st It is good also as a current-carrying terminal having a straight shape like the current-carrying terminal 76.

  Moreover, in Examples 1-4, although the electricity supply terminals 76 and 77 showed the plate-shaped thing, it is not limited to this, For example, it can also form in other shapes, such as a rod shape.

  Moreover, in Examples 1-4, although the example which has arrange | positioned the 1st, 2nd contact sheets 73 and 74 as an electrode in the heat generating member 70 was shown, this invention is the radiation fin member 80 like a prior art. The present invention can also be applied to a configuration in which a heat dissipating member such as is used as an electrode and the current-carrying member is integrally connected to the heat dissipating member.

  Moreover, in Examples 1-4, although the example which has arrange | positioned the two heat radiating fin members 80 as a heat radiating member between the heat generating member 70 and the heat generating member 70 was shown, it is good also considering this heat radiating member as one. .

  Moreover, in Examples 1-4, although the example which bent and formed the position control flanges 50b and 50c was shown as a structure which prevents the radiation fin member 80 from falling to the support plate 50, it is limited to this. Instead, a member dedicated to regulation separate from the support plate may be provided. For example, as shown in FIG. 22, like the end plate, the support plate 500 may be formed by bonding two members 501 and 502 each having a restriction flange 501 a extending in the longitudinal direction at both end edges.

  In Examples 1 to 4, if the pressing member of the housing member is one in which the current-carrying terminal 78 for pressure contact is elastically deformed and attached to the current-carrying terminal 77 at the time of mounting, the shape thereof is that shown in the example. It is not limited to. That is, it is not limited to the protruding piece shape like the pressing deformation protruding piece 27 of the first embodiment, and may be, for example, a bulging shape that bulges from the front housing (housing member). Similarly, the pressure receiving portion of the housing member is not limited to a protruding piece shape like the pressure receiving protruding piece 26 shown in the embodiment, and one side of the bulging portion that rises in a mountain shape from the front housing (housing member). You may form in.

  In the first to fourth embodiments, the pressing contact energizing terminal 78 is formed in a substantially J shape. However, the present invention is not limited to this, and any shape can be used as long as it is pressed against the energizing terminal 77. You may form in.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a configuration explanatory diagram showing an outline of a configuration of a vehicle air conditioning unit ACU to which an electric heater device A of Example 1 of the best mode of the present invention is applied. It is a perspective view which shows the electric heater apparatus A of Example 1 of embodiment of this invention. It is a perspective view which shows the radiation fin member 80 applied to the electric heater apparatus A of Example 1 of embodiment of this invention. It is a perspective view which shows the edge part of the heat generating member 70 applied to the electric heater apparatus A of Example 1 of embodiment of this invention, Comprising: (a) is the state which abbreviate | omitted the 2nd contact sheet 74 and the tube member 75 (B) has shown the completion state which does not abbreviate | omit both. It is a perspective view which shows the position frame 71 applied to the electric heater apparatus A of Example 1 of embodiment of this invention. 4 is an enlarged view showing an end portion of the position frame 71. FIG. It is sectional drawing which shows the heat generating member 70 applied to the electric heater apparatus A of Example 1 of embodiment of this invention, (a) shows the whole cross section, (b) shows only the tube member 75. Yes. It is sectional drawing which shows operation | movement of the principal part of the electric heater apparatus A of Example 1 of embodiment of this invention, (a) shows the initial state which mounts the front housing 20, (b) shows the front housing 20 It shows the end of wearing. It is an expanded sectional view showing an important section of tube member 75 applied to electric heater device A of Example 1 of an embodiment of the invention. It is a perspective view which shows the end housing 30 applied to the electric heater apparatus A of Example 1 of embodiment of this invention. It is a perspective view which shows the front housing 20 applied to the electric heater apparatus A of Example 1 of embodiment of this invention. It is a perspective view which shows the support plate 50 applied to the electric heater apparatus A of Example 1 of embodiment of this invention, (a) has shown the whole, (b) has shown the edge part. It is a perspective view which shows the end plate 60 applied to the electric heater apparatus A of Example 1 of embodiment of this invention, (a) has shown the whole, (b) has shown the edge part. It is a longitudinal section of front housing 20 applied to electric heater device A of Example 1 of an embodiment of the invention. It is work explanatory drawing of the assembly | attachment operation | work of the electric heater apparatus A of Example 1 of embodiment of this invention. It is a perspective view which shows the principal part of the heater laminated body 10 of the electric heater apparatus A of Example 1 of embodiment of this invention. It is a perspective view which shows the stopper member 90 applied to the electric heater apparatus A of Example 1 of embodiment of this invention. It is sectional drawing which shows the comparative example for demonstrating an effect | action of the electric heater apparatus A of Example 1 of embodiment of this invention, (a) shows the state before mounting | wearing of the front housing 20, (b) It shows the end of mounting the front housing. It is sectional drawing which shows the principal part of the electric heater apparatus of Example 2 of embodiment of this invention, (a) is sectional drawing of the heat generating member 270, (b) is an expanded sectional view of the principal part. . It is sectional drawing which shows the heat generating member 370 applied to the electric heater apparatus of Example 3 of embodiment of this invention. It is sectional drawing which shows the heat generating member 470 applied to the electric heater apparatus of Example 4 of embodiment of this invention. It is sectional drawing which shows the other example of embodiment of this invention.

Explanation of symbols

10 Heater laminate 20 Front housing (housing member)
22 Connector connection portion 24 Terminal insertion hole 25 Terminal insertion hole 40 Heater unit 70 Heating member 71 Position frame 71b Engagement claw member (regulation claw)
72 PTC element 73 First contact sheet (electrode)
74 Second contact sheet (electrode)
76 1st energization terminal 77 2nd energization terminal 77a Folding piece (bending part)
80 Heat radiation fin member (heat radiation member)
90 Stopper member 91 Holding portion 92 Rod portion 92a Stopper surface 270 Heating member 370 Heating member 470 Heating member

Claims (4)

A heater laminate in which a plurality of PTC elements that generate heat when energized and a heat generating member that includes an electrode that energizes the PTC elements, and a heat radiating member that dissipates heat from the heat generating member,
A housing member in which a plurality of energization terminals connected to the electrodes are arranged at one end of the heater laminate, and a connector connecting portion for connecting a power supply side connector to the energization terminals is formed. Installed,
Between at least one of the energization terminals and the electrode, a bent portion is provided that is bent substantially at right angles to the laminating direction and changes the interval between the energization terminals between the base end side and the tip end side. An electric heater device,
A stopper member is mounted on the one end side of the heater laminate, straddling the plurality of heat generating members, and restricted in movement in the other end direction with respect to the heat generating members,
The stopper member is formed so as to be able to maintain a constant interval between the heat generating members, and the stopper member is disposed along the bent portion in a mounted state on the heat generating member, and the bent portion is connected to the connector. An electric heater device characterized in that a stopper portion for restricting displacement by an input to an energizing terminal at the time of connection is formed.   The stopper member includes a plurality of holding portions that hold the heat generating members and restrict movement of the heat generating members in the stacking direction, and the connecting rod portion that connects the holding portions and includes the stopper portion. The electric heater device according to claim 1, wherein the electric heater device is integrally formed. The heat generating member is formed in a long plate shape by an insulating resin, and a position frame in which a support portion for supporting the PTC element is formed, and a sheet-like shape arranged with the position frame and the PTC element interposed therebetween. Two electrodes are formed by being inserted into a tubular tube member,
In the position frame, the stopper member is mounted on a portion protruding from one end of the tube member, and a restriction claw that engages with the stopper member and restricts movement in the other end direction is formed. The electric heater device according to claim 1, wherein the electric heater device is provided. The position frame is integrally formed with an engaging claw member that engages with the electrode so as to be able to restrict relative displacement between the electrodes in the stacking direction with respect to the position frame,
The electric heater device according to claim 3, wherein the engaging claw member is engaged with the stopper member also as the restricting means.

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