200843620 九、發明說明 【發明所屬之技術領域】 本發明係關於’主要在高壓電源下進行動作之變流器 裝置或伺服放大器等之馬達控制裝置，尤其關於馬達控制 裝置之箱體的構造。 【先前技術】 以往的馬達控制裝置，例如變流器裝置，由於使用會 產生高熱之功率半導體模組，因此，係使功率半導體模組 密接於散熱體以提升冷卻效果。此外，爲了更爲提升冷卻 效果，係使用風扇，藉由強制空冷而提升冷卻效果。 此外’將樹脂製的支撐部安裝於上述散熱體，並將基 板載置於此支撐部上。於上述基板上，安裝有進行主電路 配線之主電路端子台6(例如參照專利文獻丨）。 於以往的馬達控制裝置，例如變流器裝置中，係採用 如第6圖至第8圖所示之構成。 於第6圖至第8圖中，對於設置有風扇14之散熱體 1，例如於散熱體1所具備之螺孔1 c上，安裝有進行主電 路配線之第1主電路端子台6之第1基板5，並以螺絲i 5 將第1基板5予以安裝。於位在第1基板5的下面之散熱 體1上，安裝有具備變流器部IGBT(Insulated Gate Bipolar Transistor :絕緣閘雙極型電晶體）元件等之功率 半導體模組2。功率半導體模組2係藉由螺絲3密接於散 熱體1的上面而安裝。於散熱體1與第1基板5之間配置 -4- 200843620 有支撐部4，於散熱體1與第1基板5的安裝時，係以螺 絲1 5 —同固定。於第1基板5的上面，配置安裝有進行 主電路配線之第2主電路端子台8之第2基板7，並以覆 蓋這些基板之方式地配置箱體9，進行控制電路配線之控 制電路端子基板1 0，係以螺絲1 6固定於箱體9。於散熱 體1的底側，安裝有設置風扇1 3之風扇箱體1 4。 於第7圖中’ 1 a爲形成於上述散熱體丨的上面之螺 孔，爲了將功率半導體模組2安裝於散熱體1，係與上述 螺絲3螺合。 專利文獻1 ··日本特開2 0 0 2 - 8 4 7 3 8號公報 【發明內容】 (發明所欲解決之課題） 然而’以往的馬達控制裝置之構成中，係具有下列問 題。 於馬達控制裝置中，由於在客戶端可能不會使用到的 端子亦可進行連接，因此可能導致配線的錯誤連接。 此外，於出貨測試時，鬆開螺絲將纜線安裝於主電路 端子台，之後鎖緊螺絲並進行出貨測試。此外，於出貨測 試後，鬆開螺絲取出纜線，並以規定的扭矩鎖緊螺絲。 由於此出貨測試的設定需花費時間，因此就其作業時 間的縮短上，乃具有限制。因此，就縮短作業時間且實現 馬達控制裝置的成本降低上，乃具有限制。 此外，於客戶端使用馬達控制裝置時，由於在控制電 -5- 200843620 路的端子台配線有複數條電線，於裝置的交換等之際，配 線作業會花費時間而於此期間中必須使客戶端的裝置停 止，因此其重要的課題爲交換時間的縮短。 再者，馬達控制裝置內部的控制電路纜線，係容易受 到主電路構件的影響，因此可能引起馬達控制裝置的錯誤 動作。 本發明係鑒於上述問題點而創作出之發明，目的在於 提供一種可形成箱體之馬達控制裝置，此箱體係具有防止 錯誤配線功能，可縮短出貨測試的作業時間，進行成本的 降低’縮短裝置的交換時間，並且具有配線分離構造。 (用以解決課題之手段） 爲了解決上述課題，本發明係構成如下。 申請專利範圍第1項所記載之發明，爲具備：散熱 體、及安裝於上述散熱體之支撐部、及具有載置於上述支 撐部且具備複數個端子以進行主電路配線之主電路端子 台’並且連接有上述複數個外部電極端子之基板、以及安 裝於上述散熱體並覆蓋上述支撐部及上述基板之箱體之馬 達控制裝置，其特徵爲：於上述箱體，具備用以覆蓋上述 主電路端子台之至少1個端子的連接部之防止錯誤連接用 的端子蓋。 申請專利範圍第2項所記載之發明的特徵爲，將上述 端子盍與上述箱體一體地形成。 申請專利範圍第3項所記載之發明的特徵爲，上述主 -6- 200843620 電路端子台係構成爲上下兩段，將用以覆蓋上述上段的端 子台之至少1個端子的連接部之防止錯誤連接用的端子 蓋’形成爲大致呈平板狀，並且將用以覆蓋上述下段的端 子台之至少1個端子的連接部之防止錯誤連接用的端子 蓋，形成爲大致呈L字狀。 申請專利範圍第4項所記載之發明的特徵爲，於上述 下段之端子蓋的前部，形成測試探針***孔。 申請專利範圍第5項所記載之發明，爲具備：散熱 體、及安裝於上述散熱體之支撐部、及具有載置於上述支 撐部且具備複數個端子以進行主電路配線之主電路端子 台，並且連接有上述複數個外部電極端子之基板、及安裝 於上述散熱體並覆蓋上述支撐部及上述基板之箱體、以及 安裝於上述箱體之控制電路端子基板之馬達控制裝置，其 特徵爲：於上述箱體形成導引部，此導引部係與上述控制 電路端子基板之長度方向的側部接觸，且使上述基板滑 動。 申請專利範圍第6項所記載之發明的特徵爲，於上述 箱體形成抵接於控制電路端子基板之滑動方向的端部之壓 銷。 申請專利範圍第7項所記載之發明，爲具備：散熱 體、及安裝於上述散熱體之支撐部、及具有載置於上述支 撐部且具備複數個端子以進行主電路配線之主電路端子 台，並且連接有上述複數個外部電極端子之基板、及安裝 於上述散熱體並覆蓋上述支撐部及上述基板之箱體、以及 -7- 200843620 安裝於上述箱體之控制端子基板之馬達控制裝置，其特徵 爲：於上述箱體內的內部，設置用以分離內部構件與箱體 內的配線之區隔片。 申請專利範圍第8項所記載之發明的特徵爲，使上述 區隔片從上述箱體的上部朝向下部突出而形成。 申請專利範圍第9項所記載之發明的特徵爲，上述區 隔片爲凸肋。 發明之效果： 根據本發明，係具有下列效果。 根據申請專利範圍第1、2、3項所記載之發明，由於 在箱體上設置端子蓋，因此可確實地實現防止錯誤配線， 此外，藉由使上述端子蓋與箱體成一體化，可不需進行作 爲其他構件之管理及組裝作業，而提升構件管理及組裝的 可靠度。 根據申請專利範圍第4項所記載之發明，係於箱體上 形成使出貨測試用的測試探針***之孔，藉此可容易進行 出貨測試。由於容易進行測試，因此可藉由機器人簡單地 進行自動測試，而提升作業性。 根據申請專利範圍第5、6項所記載之發明，係於箱 體上設置有使基板滑動之導引部，以及抵接於控制電路端 子基板之滑動方向的端部而將基板予以壓抵之壓銷，藉 此，可不需使用螺絲來進行控制端子基板的固定，而能夠 縮短裝置交換的所需時間。 -8 - 200843620 根據申請專利範圍第6項所記載之發明，可藉由在箱 體上形成用以使配線途徑與內部構件分離之區隔片，而確 保內部構件與箱體內的配線之間之功能性絕緣。 根據申請專利範圍第7項所記載之發明，由於以凸肋 構成上述區隔片，因此可提升上述箱體的強度。此外，上 述凸肋若沿著配線途徑爲愈長，則愈能夠提升內部構件與 箱體內的配線之絕緣效果，以及箱體的強度。 藉由申請專利範圍第1至8項所記載之發明，可提供 一種能夠形成箱體之馬達控制裝置，此箱體係具有防止錯 誤配線功能，可縮短出貨測試的作業時間，進行成本的降 低，縮短裝置的交換時間，並且具有配線分離構造。 【實施方式】 以下參照圖式，說明本發明之實施型態。 實施例1 第1圖係顯示本發明之馬達控制裝置之立體圖。第2 圖係顯示第1圖之馬達控制裝置之分解立體圖。第3圖係 顯示第1圖之主電路端子台及箱體的構造之圖式，（a)爲 使主電路端子台6與端子蓋9a成一體化之箱體9的構造 之立體圖，（b)爲使主電路端子台6、8與端子蓋9a成一 體化之箱體9之圖式的正視圖。第4圖係顯示第1圖之控 制電路端子基板1 〇以及將導引部9b及基板予以壓抵之壓 銷9C的構造之圖式，（a)、（b)爲控制電路端子基板與 -9- 200843620 導引部9b及壓銷9c的構造之立體圖，（c)爲顯示（a)之壓 銷9c的詳細構造之部分擴大圖，（d)爲顯示將（c)的壓銷 9c往下壓使基板滑動而脫離之狀態的部分擴大圖。第5 圖係顯示第1圖之內部的控制電路纜線i 2及用以分離配 線之區隔片9 d的構造之圖式，第5圖（a)爲內部的控制電 路纜線1 2及用以分離配線之區隔片9d的構造之立體圖， 第5圖（b)爲從箱體9的內部顯示出區隔片9d的構造之立 體圖。亦即，係以開口部大致位於中心，使第5圖（a)的 箱體9旋轉1 8 0度使上下顛倒，俾可觀看內部而顯現之立 體圖。 於第1圖至第5圖中，1爲冷卻用的散熱體，且具有 複數個風扇Id，2爲包含變流器部IGBT元件等之功率半 導體模組，4爲樹脂製的支撐部，且成爲具有複數個外部 電極端子之構造。6、8爲進行主電路配線之主電路端子 台，且構成爲上下2段。5爲連接有功率半導體模組3的 外部電極端子及主電路端子台6之第1基板。7爲連接有 功率半導體模組2的外部電極端子及主電路端子台8之第 2基板。9爲覆蓋這些基板之箱體，係將覆蓋上述主電路 端子台6、8上段的至少1個端子的連接部之防止錯誤連 接用的端子蓋9aa，形成爲大致呈平板狀’且將覆蓋下段 的至少1個端子的連接部之防止錯誤連接用的端子蓋 9ab，形成爲大致呈L字狀。1 0爲進行控制電路配線之控 制電路端子基板，1 1爲控制電源配線用的蓋’ 1 2爲控制 電路纜線，1 3爲風扇，1 4爲將風扇1 3固定於散熱體1之 -10- 200843620 風扇箱體。 上述散熱體1例如形成爲直方體，上面形成爲平面 狀’且形成有複數個安裝支撐部4之支撐部安裝突座 1 b。此外’係形成有複數個用以將功率半導體模組2安裝 於散熱體1之螺孔1 a。 上述支撐部4係配置於上述散熱體i上，且形成有複 數個散熱體安裝孔4 c。此外，係形成有複數個基板定位 突座4a及基板固定鈎4b，此基板定位突座4a及基板固 定鈎4b係用以安裝連接有功率半導體模組2的外部電極 端子及主電路端子台6之第1基板5。 上述功率半導體模組2係配置於上述散熱體1的螺孔 1 a上，並使用螺絲3暫時固定。 上述主電路端子台6係配置於上述第1基板5上並予 以焊接固定。 上述第1基板5係配置於上述支撐部4上，並以基板 定位突座4a及基板固定鈎4b予以固定。上述功率半導體 模組2亦予以扣緊固定。於此狀態下，將上述功率半導體 模組2的端子焊接固定於第1基板5。 上述主電路端子台8係配置於上述第2基板7上並予 以焊接固定。 上述第2基板7係配置於上述第1基板5上，並以基 板定位突座4a及基板固定鈎4予以固定。上述功率半導 體模組2亦予以扣緊固定。於此狀態下，將上述功率半導 體模組2的端子焊接固定於第2基板7。 -11 - 200843620 上述箱體9，係以覆蓋上述第1基板5、第2基板7 之方式地配置於上述支撐部4上，並以箱體固定鈎4d予 以固定。 上述控制電路端子基板1 0，係藉由基板導引部9b定 位於上述箱體9，且藉由基板壓銷9c予以固定。 上述控制電源配線用的蓋1 1，係以蓋固定鈎1 1 a固 定於上述箱體9的右側面部。 上述控制電路纜線1 2係連接於上述第2基板7。 上述風扇1 3係配置於上述散熱體1，並以風扇箱體 1 4固定於上述散熱體1。 本發明之馬達控制裝置，藉由在箱體9上設置端子蓋 9a，可確實地實現防止錯誤配線，此外，藉由使上述端子 蓋9a與箱體9成一體化，可不需進行作爲其他構件之管 理及組裝作業，而提升構件管理及組裝的可靠度。 此外，係於下段之端子蓋9ab的前部，形成出貨測試 用的測試探針***孔9al，藉此可容易進行出貨測試。由 於容易進行測試，因此可藉由機器人簡單地進行自動測 試，而提升作業性。 再者，係於箱體9上設置有使控制電路端子基板1 0 滑動之導引部9b以及將控制電路端子基板予以壓抵之壓 銷9c，藉此，由於不需使用螺絲來進行控制端子基板的 固定而能夠縮短裝置交換時間，因此可縮短使客戶端的裝 置停止之時間，而有益於生產性的提升。 此外，可藉由在箱體9上形成用以使控制電路纜線 -12- 200843620 1 2與內部構件分離之區隔片9d，而確保與內部構件之間 的功能性絕緣，因此不會引起錯誤動作，而有益於產品可 靠度的提升。上述區隔片9d，例如可由凸肋構成以提升 上述箱體的強度。此外，上述凸肋若沿著配線途徑爲愈 長’則愈能夠提升內部構件與箱體內的配線之絕緣效果， 以及箱體的強度。 於本發明中，由於不需使用其他構件而使箱體具有種 種功能，因此可達到組裝性的提升以及成本的降低。 產業上之可利用性 本發明係適用於主要在高壓電源下進行動作之變流器 裝置或伺服放大器等之馬達控制裝置，並且可利用於製造 或提供馬達控制裝置之領域，此馬達控制裝置可形成一種 箱體，此箱體係具有防止錯誤配線功能，可縮短出貨測試 的作業時間，進行成本的降低，縮短裝置的交換時間，並 且具有配線分離構造。 【圖式簡單說明】 第1圖係顯示本發明的實施例之馬達控制裝置之立體 圖。 第2圖係顯示本發明的實施例之馬達控制裝置之分解 立體圖。 第3圖係顯示本發明的實施例之主電路端子台及箱體 的構造之圖式，（a)爲立體圖’（b)爲正視圖。 -13- 200843620 第4圖係顯示本發明的實施例之控制電路端子基板及 箱體的構造之圖式，（a)、（b)爲立體圖，（c)、（d)爲部分擴 大圖。 第5圖係顯示本發明的實施例之控制電路纜線及箱體 的構造之圖式，（a)、（b)爲立體圖。 第6圖係顯示以往的馬達控制裝置之立體圖。 第7圖係顯示以往的馬達控制裝置之分解立體圖。 第8圖係顯示以往之主電路端子台及箱體的構造之圖 式，（a)、（b)爲立體圖。 【主要元件符號說明】 1 =散熱體 1 a :螺孔 lb:支撐部安裝突座 1 c :螺孔 1 d :鰭片 2 :功率半導體模組 3 :功率半導體模組固定用螺絲 4 :支撐部 4 a :基板定位突座 4b :基板固定鈎 4 c :散熱體安裝孔 4c :箱體固定钩 5 :第1基板 •14- 200843620 6 :主電路端子台 7 :第2基板 8 :主電路端子台 9 :箱體 9aa、 9ab:端子蓋 9al :測試探針***孔 9b :導引部 9c :壓銷 9d :區隔片（凸肋） 1 0 :控制電路端子基板 1 1 :控制電源配線用的蓋 1 1 a :蓋固定鈎 1 2 :控制電路纜線 1 3 :風扇 1 4 :風扇箱體 1 5 :第1基板固定用螺絲 1 6 :控制電路端子基板固定用螺絲 -15-BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a motor control device such as a converter device or a servo amplifier that operates mainly under a high-voltage power source, and more particularly to a structure of a casing of a motor control device. [Prior Art] Conventional motor control devices, such as converter devices, use a power semiconductor module that generates high heat. Therefore, the power semiconductor module is closely attached to the heat sink to improve the cooling effect. In addition, in order to improve the cooling effect, a fan is used to enhance the cooling effect by forcing air cooling. Further, a resin-made support portion is attached to the heat sink, and the substrate is placed on the support portion. A main circuit terminal block 6 for wiring the main circuit is mounted on the substrate (see, for example, Patent Document). In the conventional motor control device, for example, the converter device, the configuration shown in Figs. 6 to 8 is employed. In the heat radiating body 1 in which the fan 14 is provided, for example, the first main circuit terminal block 6 on which the main circuit wiring is performed is mounted on the screw hole 1 c provided in the heat radiating body 1 in the sixth embodiment to the eighth embodiment. 1 substrate 5, and the first substrate 5 is attached with a screw i 5 . A power semiconductor module 2 including a current transformer portion IGBT (Insulated Gate Bipolar Transistor) device or the like is mounted on the heat dissipating body 1 on the lower surface of the first substrate 5. The power semiconductor module 2 is mounted by being in close contact with the upper surface of the heat radiating body 1 by screws 3. Between the heat sink 1 and the first substrate 5 is disposed -4- 200843620. The support portion 4 is fixed by the screw 15 when the heat sink 1 and the first substrate 5 are mounted. The second substrate 7 on which the second main circuit terminal block 8 for main circuit wiring is mounted is placed on the upper surface of the first substrate 5, and the case 9 is placed so as to cover the substrate, and the control circuit terminal for controlling the circuit wiring is disposed. The substrate 10 is fixed to the case 9 by screws 16. A fan case 14 to which the fan 13 is disposed is attached to the bottom side of the heat sink 1. In Fig. 7, '1a' is a screw hole formed in the upper surface of the heat sink body, and the power semiconductor module 2 is screwed to the above-mentioned screw 3 in order to attach the power semiconductor module 2 to the heat sink 1. [Problem to be Solved by the Invention] However, the configuration of the conventional motor control device has the following problems. In the motor control unit, since the terminals that may not be used at the client can be connected, the wiring may be incorrectly connected. In addition, during shipment testing, loosen the screws to install the cable to the main circuit terminal block, then tighten the screws and perform the shipping test. Also, after shipping the test, loosen the screw to remove the cable and tighten the screw to the specified torque. Since the setting of this shipment test takes time, there is a limit to the shortening of the operation time. Therefore, there is a limit in shortening the working time and realizing the cost reduction of the motor control device. In addition, when the motor control device is used at the client, since there are a plurality of wires in the terminal block wiring of the control electric-5-200843620, the wiring operation takes time during the exchange of the device, and the customer must be in the period during this period. The device at the end stops, so an important issue is the shortening of the exchange time. Further, the control circuit cable inside the motor control device is susceptible to the influence of the main circuit member, and thus may cause an erroneous operation of the motor control device. The present invention has been made in view of the above problems, and an object of the invention is to provide a motor control device capable of forming a box body, which has a function of preventing an incorrect wiring, can shorten a working time of a shipping test, and reduce a cost. The device is exchanged for time and has a wiring separation configuration. (Means for Solving the Problem) In order to solve the above problems, the present invention is structured as follows. The invention according to claim 1, comprising: a heat sink; and a support portion attached to the heat sink; and a main circuit terminal block having a plurality of terminals mounted on the support portion and configured to perform main circuit wiring And a motor control device in which the substrate of the plurality of external electrode terminals is connected, and a casing that is attached to the heat sink and covers the support portion and the substrate, wherein the casing is provided to cover the main body A terminal cover for preventing erroneous connection at a connection portion of at least one terminal of the circuit terminal block. The invention according to claim 2 is characterized in that the terminal 盍 is integrally formed with the casing. According to the invention of the third aspect of the invention, the main -6-200843620 circuit terminal block is configured to be upper and lower, and the connection portion for covering at least one terminal of the terminal block of the upper stage is prevented from being erroneous. The terminal cover for connection is formed in a substantially flat shape, and the terminal cover for preventing erroneous connection of the connection portion for covering at least one terminal of the terminal block of the lower stage is formed in a substantially L shape. According to the invention of claim 4, the test probe insertion hole is formed in the front portion of the terminal cover of the lower stage. The invention according to claim 5, comprising: a heat sink; and a support portion attached to the heat sink; and a main circuit terminal block having a plurality of terminals mounted on the support portion and configured to perform main circuit wiring And a substrate to which the plurality of external electrode terminals are connected, a case to be mounted on the heat sink and cover the support portion and the substrate, and a motor control device mounted on the control circuit terminal substrate of the case, wherein The guide portion is formed in the case body, and the guide portion is in contact with a side portion of the control circuit terminal substrate in the longitudinal direction, and the substrate is slid. The invention according to claim 6 is characterized in that the casing is formed with a press pin that abuts against an end portion of the control circuit terminal substrate in the sliding direction. The invention according to claim 7 is provided with: a heat sink; and a support portion attached to the heat sink; and a main circuit terminal block having a plurality of terminals placed on the support portion and configured to perform main circuit wiring And a substrate to which the plurality of external electrode terminals are connected, a case mounted on the heat sink and covering the support portion and the substrate, and a motor control device mounted on the control terminal substrate of the case, -7-200843620, The utility model is characterized in that: in the inside of the box body, a partition piece for separating the inner member and the wiring inside the box body is provided. The invention according to claim 8 is characterized in that the partition piece is formed to protrude from an upper portion of the casing toward a lower portion. The invention of claim 9 is characterized in that the spacer is a rib. Effects of the Invention: According to the present invention, the following effects are obtained. According to the invention described in the first, second, and third aspects of the patent application, since the terminal cover is provided on the casing, it is possible to surely prevent the erroneous wiring, and by integrating the terminal cover with the casing, The management and assembly work of other components is required to improve the reliability of component management and assembly. According to the invention of the fourth aspect of the invention, the hole for inserting the test probe for shipment test is formed in the casing, whereby the shipment test can be easily performed. Since it is easy to test, it is easy to perform automatic testing by the robot to improve workability. According to the invention described in the fifth and sixth aspects of the invention, the casing is provided with a guide portion for sliding the substrate, and the end portion of the control circuit terminal substrate in the sliding direction is pressed to press the substrate. By pressing the pin, the fixing of the terminal substrate can be performed without using a screw, and the time required for device exchange can be shortened. -8 - 200843620 According to the invention described in claim 6, the spacer between the inner member and the inner casing can be ensured by forming a spacer on the casing for separating the wiring route from the inner member. Functional insulation. According to the invention of the seventh aspect of the invention, since the partition piece is formed by the rib, the strength of the casing can be improved. Further, if the rib is longer along the wiring route, the insulation effect of the inner member and the wiring inside the case and the strength of the case can be improved. According to the invention described in the first to eighth aspects of the invention, it is possible to provide a motor control device capable of forming a casing, which has a function of preventing an incorrect wiring, shortens the operation time of the shipment test, and reduces the cost. The switching time of the device is shortened, and the wiring separation structure is provided. [Embodiment] Hereinafter, embodiments of the present invention will be described with reference to the drawings. Embodiment 1 Fig. 1 is a perspective view showing a motor control device of the present invention. Fig. 2 is an exploded perspective view showing the motor control device of Fig. 1. 3 is a view showing a structure of a main circuit terminal block and a casing of the first drawing, and (a) is a perspective view showing a structure of a casing 9 in which the main circuit terminal block 6 and the terminal cover 9a are integrated, (b) A front view of the housing 9 for integrating the main circuit terminal blocks 6, 8 and the terminal cover 9a. Fig. 4 is a view showing a structure of a control circuit terminal substrate 1A of Fig. 1 and a press pin 9C for pressing the guide portion 9b and the substrate, and (a) and (b) are control circuit terminal substrates and - 9-200843620 A perspective view of the structure of the guide portion 9b and the press pin 9c, (c) is a partially enlarged view showing the detailed structure of the press pin 9c of (a), and (d) is a view showing the press pin 9c of (c) A partial enlarged view in which the substrate is slid and released. Fig. 5 is a view showing the structure of the control circuit cable i 2 inside the first figure and the partition 9 d for separating the wiring, and Fig. 5(a) shows the internal control circuit cable 12 and A perspective view of a structure for separating the partition piece 9d of the wiring, and Fig. 5(b) is a perspective view showing a structure of the partition piece 9d from the inside of the casing 9. In other words, the case where the opening portion is substantially at the center and the case 9 of Fig. 5(a) is rotated by 180 degrees to be turned upside down, and the inside can be seen and viewed. In the first to fifth figures, 1 is a heat sink for cooling, and has a plurality of fans Id, 2 is a power semiconductor module including a converter portion IGBT element, and 4 is a resin support portion, and It has a structure having a plurality of external electrode terminals. 6, 8 is the main circuit terminal block for main circuit wiring, and is configured as two stages. 5 is a first substrate to which the external electrode terminal of the power semiconductor module 3 and the main circuit terminal block 6 are connected. 7 is a second substrate to which the external electrode terminal of the power semiconductor module 2 and the main circuit terminal block 8 are connected. 9 is a case for covering the substrates, and the terminal cover 9aa for preventing erroneous connection at the connection portion of at least one terminal of the upper portion of the main circuit terminal blocks 6 and 8 is formed in a substantially flat shape and will cover the lower portion. The terminal cover 9ab for preventing erroneous connection at the connection portion of at least one of the terminals is formed in a substantially L shape. 10 is a control circuit terminal substrate for performing control circuit wiring, and 1 1 is a cover for controlling power supply wiring '1 2 is a control circuit cable, 13 is a fan, and 14 is a fan 13 fixed to the heat sink 1 - 10- 200843620 Fan cabinet. The heat dissipating body 1 is formed, for example, as a rectangular parallelepiped, and the upper surface is formed in a planar shape, and a plurality of supporting portion mounting projections 1b are formed. Further, a plurality of screw holes 1a for mounting the power semiconductor module 2 to the heat sink 1 are formed. The support portion 4 is disposed on the heat sink i, and a plurality of heat sink mounting holes 4c are formed. In addition, a plurality of substrate positioning protrusions 4a and substrate fixing hooks 4b are formed. The substrate positioning protrusions 4a and the substrate fixing hooks 4b are used for mounting external electrode terminals and main circuit terminal blocks 6 to which the power semiconductor module 2 is connected. The first substrate 5 is. The power semiconductor module 2 is disposed on the screw hole 1a of the heat sink 1, and is temporarily fixed by a screw 3. The main circuit terminal block 6 is placed on the first substrate 5 and fixed by soldering. The first substrate 5 is placed on the support portion 4, and is fixed by a substrate positioning protrusion 4a and a substrate fixing hook 4b. The power semiconductor module 2 is also fastened and fixed. In this state, the terminals of the power semiconductor module 2 are soldered and fixed to the first substrate 5. The main circuit terminal block 8 is placed on the second substrate 7 and fixed by soldering. The second substrate 7 is disposed on the first substrate 5, and is fixed by a substrate positioning protrusion 4a and a substrate fixing hook 4. The power semiconductor module 2 is also fastened and fixed. In this state, the terminals of the power semiconductor module 2 are soldered and fixed to the second substrate 7. -11 - 200843620 The casing 9 is placed on the support portion 4 so as to cover the first substrate 5 and the second substrate 7, and is fixed by the box fixing hook 4d. The control circuit terminal substrate 10 is positioned in the casing 9 by the substrate guiding portion 9b, and is fixed by the substrate pressing pin 9c. The lid 1 1 for controlling the power supply wiring is fixed to the right side surface portion of the casing 9 by a lid fixing hook 1 1 a. The control circuit cable 12 is connected to the second substrate 7. The fan 13 is disposed on the heat sink 1 and is fixed to the heat sink 1 by a fan case 14. According to the motor control device of the present invention, by providing the terminal cover 9a in the casing 9, it is possible to surely prevent the erroneous wiring, and by integrating the terminal cover 9a with the casing 9, it is not necessary to perform other components. Management and assembly operations improve the reliability of component management and assembly. Further, in the front portion of the terminal cover 9ab of the lower stage, a test probe insertion hole 9a1 for shipping test is formed, whereby the shipment test can be easily performed. Since the test is easy, the robot can be easily automated and the workability can be improved. Further, the case 9 is provided with a guide portion 9b for sliding the control circuit terminal substrate 10 and a press pin 9c for pressing the control circuit terminal substrate, whereby the control terminal is not required to be used. The fixing of the substrate can shorten the device exchange time, so that the time for stopping the device of the client can be shortened, which is advantageous for productivity improvement. In addition, functional insulation between the internal components and the internal components can be ensured by forming a spacer 9d on the casing 9 for separating the control circuit cable -12-200843620 12 from the internal components, and thus does not cause Wrong action, which is beneficial to the improvement of product reliability. The above-mentioned partition piece 9d can be constituted, for example, by a rib to increase the strength of the above casing. Further, if the ribs are longer along the wiring path, the insulation effect of the inner member and the wiring inside the casing and the strength of the casing can be improved. In the present invention, since the casing has various functions without using other members, assembly improvement and cost reduction can be achieved. INDUSTRIAL APPLICABILITY The present invention is applicable to a motor control device such as a converter device or a servo amplifier that operates mainly under a high-voltage power source, and can be utilized in the field of manufacturing or providing a motor control device. A box body is formed, which has a function of preventing erroneous wiring, shortens the operation time of the shipment test, reduces the cost, shortens the exchange time of the device, and has a wiring separation structure. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a perspective view showing a motor control device according to an embodiment of the present invention. Fig. 2 is an exploded perspective view showing the motor control device of the embodiment of the present invention. Fig. 3 is a view showing the configuration of a main circuit terminal block and a casing of an embodiment of the present invention, and (a) is a perspective view of the perspective view (b). -13- 200843620 Fig. 4 is a view showing a structure of a control circuit terminal substrate and a casing of an embodiment of the present invention, wherein (a) and (b) are perspective views, and (c) and (d) are partially enlarged views. Fig. 5 is a view showing the construction of a control circuit cable and a casing of an embodiment of the present invention, and (a) and (b) are perspective views. Fig. 6 is a perspective view showing a conventional motor control device. Fig. 7 is an exploded perspective view showing a conventional motor control device. Fig. 8 is a view showing a structure of a conventional main circuit terminal block and a casing, and (a) and (b) are perspective views. [Main component symbol description] 1 = Heat sink 1 a : Screw hole lb: Support mounting bracket 1 c : Screw hole 1 d : Fin 2 : Power semiconductor module 3 : Power semiconductor module fixing screw 4 : Support Part 4 a : Substrate positioning protrusion 4 b : Substrate fixing hook 4 c : Heat sink mounting hole 4 c : Case fixing hook 5 : First substrate • 14- 200843620 6 : Main circuit terminal block 7 : Second substrate 8 : Main circuit Terminal block 9: case 9aa, 9ab: terminal cover 9al: test probe insertion hole 9b: guide portion 9c: press pin 9d: spacer (rib) 1 0 : control circuit terminal substrate 1 1 : control power supply wiring Cover 1 1 a : Cover fixing hook 1 2 : Control circuit cable 1 3 : Fan 1 4 : Fan case 1 5 : 1st board fixing screw 1 6 : Control circuit terminal board fixing screw -15-